к.т.н.
Публикации
2021
Romanov, I.; Borzenko, V.; Eronin, A.; Kazakov, A.
Influence of electrostatic field on the interaction of AB5-type alloy LaNi4.4Al0.3Fe0.3 with hydrogen Journal Article
In: International Journal of Hydrogen Energy, vol. 46, no. 25, pp. 13632-13637, 2021, (cited By 0).
@article{Romanov202113632,
title = {Influence of electrostatic field on the interaction of AB5-type alloy LaNi4.4Al0.3Fe0.3 with hydrogen},
author = {I. Romanov and V. Borzenko and A. Eronin and A. Kazakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096534062&doi=10.1016%2fj.ijhydene.2020.10.207&partnerID=40&md5=6799237850882888f802b1b191b53a12},
doi = {10.1016/j.ijhydene.2020.10.207},
year = {2021},
date = {2021-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {46},
number = {25},
pages = {13632-13637},
abstract = {The effect of the electrostatic field on hydrogen absorption is experimentally studied for the case of AB5-type intermetallic compound LaNi4.4Al0.3Fe0.3 with low equilibrium pressure. Experimental facility contained control and measurement system for PCT-isotherms and a non-conductive polymer vessel immersed in a bath of a thermostat with transformer oil. The test sample with 100 g of the activated alloy powder was used. Electrostatic field was created between a copper tube, which simultaneously served as a hydrogen inlet, connected to a high voltage source and a grounded nickel plate rolled in the form of a cylinder around the outer wall of the vessel. The electrodes were arranged coaxially, the maximum voltage on the internal electrode was 15 kV. The high voltage source also allowed changing the polarity on the internal electrode. It was found that the electrostatic field had no effect on the already established equilibrium in the hydrogen-alloy system at a voltage at the electrode up to 15 kV, regardless of the polarity. However, the process of hydrogen absorption is noticeably slowed down when a voltage of up to 15 kV with negative polarity is applied to the internal electrode, and the effect increases with increasing voltage. At a voltage of 15 kV and the positive polarity of the internal electrode, there was no noticeable effect on the hydrogen absorption process. © 2020 Hydrogen Energy Publications LLC},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The effect of the electrostatic field on hydrogen absorption is experimentally studied for the case of AB5-type intermetallic compound LaNi4.4Al0.3Fe0.3 with low equilibrium pressure. Experimental facility contained control and measurement system for PCT-isotherms and a non-conductive polymer vessel immersed in a bath of a thermostat with transformer oil. The test sample with 100 g of the activated alloy powder was used. Electrostatic field was created between a copper tube, which simultaneously served as a hydrogen inlet, connected to a high voltage source and a grounded nickel plate rolled in the form of a cylinder around the outer wall of the vessel. The electrodes were arranged coaxially, the maximum voltage on the internal electrode was 15 kV. The high voltage source also allowed changing the polarity on the internal electrode. It was found that the electrostatic field had no effect on the already established equilibrium in the hydrogen-alloy system at a voltage at the electrode up to 15 kV, regardless of the polarity. However, the process of hydrogen absorption is noticeably slowed down when a voltage of up to 15 kV with negative polarity is applied to the internal electrode, and the effect increases with increasing voltage. At a voltage of 15 kV and the positive polarity of the internal electrode, there was no noticeable effect on the hydrogen absorption process. © 2020 Hydrogen Energy Publications LLC
2019
Khayrullina, A.; Blinov, D.; Borzenko, V.
Air heated metal hydride energy storage system design and experiments for microgrid applications Journal Article
In: International Journal of Hydrogen Energy, pp. 19168-19176, 2019, (cited By 8).
@article{Khayrullina201919168,
title = {Air heated metal hydride energy storage system design and experiments for microgrid applications},
author = {A. Khayrullina and D. Blinov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049092898&doi=10.1016%2fj.ijhydene.2018.05.145&partnerID=40&md5=36a54cfc658c4e3084262482a35b6c93},
doi = {10.1016/j.ijhydene.2018.05.145},
year = {2019},
date = {2019-01-01},
journal = {International Journal of Hydrogen Energy},
pages = {19168-19176},
abstract = {Emerging technologies of the 21st Century introduced bi-directional flows between a big number of uncontrollable and unpredictable generators together with a need for energy storage (ES) capable of solving instability issues. With the aim of developing new control methodologies, Skoltech developed a Smart Grid laboratory that includes a variety of energy generators, and storage systems. The capabilities of the grid were expanded with a metal hydride (MH) ES and 1 kW fuel cell. MH ES performs at the near ambient temperatures and relatively low pressure, it has adjustable properties, satisfactory gravimetric H2 density, and a simple thermal management. However, existing technologies require an external heat source, which cannot serve the purpose of autonomous microgrid applications. The aim of this research was to develop and test an air heated metal hydride energy storage system that utilizes the internal waste heat of the system. Based on low power MH ES system experiments [1] and waste heat investigations [2], an air heated system with 1 m3 H2 MH reactor was developed and tested. The experiments were performed in the system that also includes 1 kW fuel cell and an electrolyzer. Obtained results show higher efficiency rate of the system due to waste heat utilization from the air-cooled polymer electrolyte membrane (PEM) FC, ensure mobility for autonomous applications, and open the opportunity for further research in the field of power system control. © 2018 Hydrogen Energy Publications LLC},
note = {cited By 8},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Emerging technologies of the 21st Century introduced bi-directional flows between a big number of uncontrollable and unpredictable generators together with a need for energy storage (ES) capable of solving instability issues. With the aim of developing new control methodologies, Skoltech developed a Smart Grid laboratory that includes a variety of energy generators, and storage systems. The capabilities of the grid were expanded with a metal hydride (MH) ES and 1 kW fuel cell. MH ES performs at the near ambient temperatures and relatively low pressure, it has adjustable properties, satisfactory gravimetric H2 density, and a simple thermal management. However, existing technologies require an external heat source, which cannot serve the purpose of autonomous microgrid applications. The aim of this research was to develop and test an air heated metal hydride energy storage system that utilizes the internal waste heat of the system. Based on low power MH ES system experiments [1] and waste heat investigations [2], an air heated system with 1 m3 H2 MH reactor was developed and tested. The experiments were performed in the system that also includes 1 kW fuel cell and an electrolyzer. Obtained results show higher efficiency rate of the system due to waste heat utilization from the air-cooled polymer electrolyte membrane (PEM) FC, ensure mobility for autonomous applications, and open the opportunity for further research in the field of power system control. © 2018 Hydrogen Energy Publications LLC
Blinov, D.; Borzenko, V.; Glagoleva, A.; Kazakov, A.
vol. 114, 2019, (cited By 0).
@conference{Blinov2019,
title = {Integration of metal hydride devices with polymer electrolyte fuel cells and electrolyzers for stationary applications},
author = {D. Blinov and V. Borzenko and A. Glagoleva and A. Kazakov},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072568458&doi=10.1051%2fe3sconf%2f201911406008&partnerID=40&md5=14ab46c313519dfb06c4d273557f7d56},
doi = {10.1051/e3sconf/201911406008},
year = {2019},
date = {2019-01-01},
journal = {E3S Web of Conferences},
volume = {114},
abstract = {This paper presents the experimental results of the system integration of a fuel cell (FC), an electrolyzer and a metal hydride hydrogen storage and purification system. A pilot scale experimental power installation H2Smart with an electric power of 1 kW is developed, and the results of its operation in different regimes are presented. The problems of hydrogen desorption for the supply of FC and hydrogen sorption from the electrolyzer at the start are shown. Possible solutions of this problem are proposed. © The Authors, published by EDP Sciences.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
This paper presents the experimental results of the system integration of a fuel cell (FC), an electrolyzer and a metal hydride hydrogen storage and purification system. A pilot scale experimental power installation H2Smart with an electric power of 1 kW is developed, and the results of its operation in different regimes are presented. The problems of hydrogen desorption for the supply of FC and hydrogen sorption from the electrolyzer at the start are shown. Possible solutions of this problem are proposed. © The Authors, published by EDP Sciences.
Khayrullina, A. G.; Blinov, D.; Borzenko, V.
Novel kW scale hydrogen energy storage system utilizing fuel cell exhaust air for hydrogen desorption process from metal hydride reactor Journal Article
In: Energy, vol. 183, pp. 1244-1252, 2019, (cited By 14).
@article{Khayrullina20191244,
title = {Novel kW scale hydrogen energy storage system utilizing fuel cell exhaust air for hydrogen desorption process from metal hydride reactor},
author = {A. G. Khayrullina and D. Blinov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068554494&doi=10.1016%2fj.energy.2019.07.021&partnerID=40&md5=a64feac4bcc7dc403e69c29fb52636ce},
doi = {10.1016/j.energy.2019.07.021},
year = {2019},
date = {2019-01-01},
journal = {Energy},
volume = {183},
pages = {1244-1252},
abstract = {In the narrative of changing energy production environment, renewable sources of energy provide a fundamental basis for the growth of energy storage technologies. In particular, many settlements in Russia and other countries are located outside the centralized grids. With the goal of replacing diesel engines, a pilot project with solar panels produced 30 000 kWh. However, a support of energy storage systems is needed to ensure higher replacement percentage. The present paper introduces the development of a novel kW-scale power production unit that utilizes metal-hydride (MH) energy storage and 1 kW PEM fuel cell (FC). In the effort to enable the technology for autonomous applications, the novel concept of using FC exhaust air for hydrogen desorption process replacing an external heating agent was successfully proved. In the first two experiments, the limitations of the initial stage of the MH reactor were formulated. Warming up speed of the MH reactor was not sufficient to support the necessary hydrogen pressure level output. Third and fourth experiments provide possible solutions to this limitation: (i) higher load on the FC enable satisfactory warm-up speed of the MH reactor, (ii) higher initial pressure of MH reactor charge mitigates an initial pressure drop during the FC startup procedures. © 2019 Elsevier Ltd},
note = {cited By 14},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In the narrative of changing energy production environment, renewable sources of energy provide a fundamental basis for the growth of energy storage technologies. In particular, many settlements in Russia and other countries are located outside the centralized grids. With the goal of replacing diesel engines, a pilot project with solar panels produced 30 000 kWh. However, a support of energy storage systems is needed to ensure higher replacement percentage. The present paper introduces the development of a novel kW-scale power production unit that utilizes metal-hydride (MH) energy storage and 1 kW PEM fuel cell (FC). In the effort to enable the technology for autonomous applications, the novel concept of using FC exhaust air for hydrogen desorption process replacing an external heating agent was successfully proved. In the first two experiments, the limitations of the initial stage of the MH reactor were formulated. Warming up speed of the MH reactor was not sufficient to support the necessary hydrogen pressure level output. Third and fourth experiments provide possible solutions to this limitation: (i) higher load on the FC enable satisfactory warm-up speed of the MH reactor, (ii) higher initial pressure of MH reactor charge mitigates an initial pressure drop during the FC startup procedures. © 2019 Elsevier Ltd
Schastlivtsev, A.; Dunikov, D.; Borzenko, V.
Experimental study of the processes in hydrogen-oxygen gas generator Journal Article
In: International Journal of Hydrogen Energy, vol. 44, no. 18, pp. 9450-9455, 2019, (cited By 9).
@article{Schastlivtsev20199450,
title = {Experimental study of the processes in hydrogen-oxygen gas generator},
author = {A. Schastlivtsev and D. Dunikov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062636252&doi=10.1016%2fj.ijhydene.2019.02.126&partnerID=40&md5=f90ef441c2d5d3f4af26c64f457ef9c7},
doi = {10.1016/j.ijhydene.2019.02.126},
year = {2019},
date = {2019-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {44},
number = {18},
pages = {9450-9455},
abstract = {The paper presents a hydrogen-oxygen gas generator, which could be a key element of a novel scheme of hybrid hydrogen-air energy storage system, which proposes to store energy in both compressed air and hydrogen. At a power generation mode, hydrogen is combusted in oxygen, the produced steam is mixed with air and the gas mixture is used in a conventional gas turbine. The experimental hydrogen-oxygen gas generator has produced gas with temperatures 953–1163 K at pressures 2–4 MPa and has reached the thermal capacity up to 210 kW and thermal efficiency up to 95–99%. Separation of the combustion zone and air injection has helped to reduce NOx content in the product gas to 11 mg/st.m3. © 2019 Hydrogen Energy Publications LLC},
note = {cited By 9},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The paper presents a hydrogen-oxygen gas generator, which could be a key element of a novel scheme of hybrid hydrogen-air energy storage system, which proposes to store energy in both compressed air and hydrogen. At a power generation mode, hydrogen is combusted in oxygen, the produced steam is mixed with air and the gas mixture is used in a conventional gas turbine. The experimental hydrogen-oxygen gas generator has produced gas with temperatures 953–1163 K at pressures 2–4 MPa and has reached the thermal capacity up to 210 kW and thermal efficiency up to 95–99%. Separation of the combustion zone and air injection has helped to reduce NOx content in the product gas to 11 mg/st.m3. © 2019 Hydrogen Energy Publications LLC
Kazakov, A.; Blinov, D.; Romanov, I.; Dunikov, D.; Borzenko, V.
Metal hydride technologies for renewable energy Conference
vol. 114, 2019, (cited By 5).
@conference{Kazakov2019,
title = {Metal hydride technologies for renewable energy},
author = {A. Kazakov and D. Blinov and I. Romanov and D. Dunikov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072568300&doi=10.1051%2fe3sconf%2f201911405005&partnerID=40&md5=d56031633a9aa4a50d5d9c9e3612727f},
doi = {10.1051/e3sconf/201911405005},
year = {2019},
date = {2019-01-01},
journal = {E3S Web of Conferences},
volume = {114},
abstract = {Significant progress in the installation of renewable energy requires the improvement of energy production and storage technologies. Hydrogen energy storage systems based on reversible metal hydride materials can be used as an energy backup system. Metal hydride hydrogen storage systems are distinguished by a high degree of safety of their use, since hydrogen is stored in a solid phase, a high volumetric density of stored hydrogen, and the possibility of long-term storage without losses. A distinctive feature of metal hydride materials is the reversible and selective absorption and release of high-purity hydrogen. This paper presents experimental studies of LaNi5-based metal hydride materials with a useful hydrogen capacity of 1.0–1.3 wt.% H2 with equilibrium pressures of 0.025 - 0.05 MPa and 0.1 - 1.2 MPa at moderate temperatures of 295 - 353 K for the hydrogen purification systems and hydrogen long-term storage systems, respectively. The applicability of metal hydride technologies for renewable energy sources as energy storage systems in the form of hydrogen is also shown. © The Authors, published by EDP Sciences.},
note = {cited By 5},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Significant progress in the installation of renewable energy requires the improvement of energy production and storage technologies. Hydrogen energy storage systems based on reversible metal hydride materials can be used as an energy backup system. Metal hydride hydrogen storage systems are distinguished by a high degree of safety of their use, since hydrogen is stored in a solid phase, a high volumetric density of stored hydrogen, and the possibility of long-term storage without losses. A distinctive feature of metal hydride materials is the reversible and selective absorption and release of high-purity hydrogen. This paper presents experimental studies of LaNi5-based metal hydride materials with a useful hydrogen capacity of 1.0–1.3 wt.% H2 with equilibrium pressures of 0.025 - 0.05 MPa and 0.1 - 1.2 MPa at moderate temperatures of 295 - 353 K for the hydrogen purification systems and hydrogen long-term storage systems, respectively. The applicability of metal hydride technologies for renewable energy sources as energy storage systems in the form of hydrogen is also shown. © The Authors, published by EDP Sciences.
2018
Khayrullina, A.; Blinov, D.; Borzenko, V.
2018, (cited By 0).
@conference{Khayrullina2018,
title = {Novel kw scale hydrogen energy storage system utilizing fuel cell exhaust air for hydrogen desorption process from metal hydride reactor},
author = {A. Khayrullina and D. Blinov and V. Borzenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064170920&partnerID=40&md5=2e2dda22da8ace1b0b48d5688cf385f9},
year = {2018},
date = {2018-01-01},
journal = {ECOS 2018 - Proceedings of the 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems},
abstract = {More than 900 settlements in Russia are located outside the centralized grid. An average daily load of these small towns is around 30-40 kW with 70 kW peaks in January and October. Given high solar potential in these areas of 3.5 to 4.5 kWh per m2/day, a pilot project with solar panels in Batamai village produced 30 000 kWh and saved 11 tons of diesel in a year. In order to increase diesel replacement percentage and eliminate instability issues, a need for energy storage system was formulated. Current work highlights the development of a novel kW scale power production unit that utilizes metal-hydride (MH) energy storage and 1 kW PEM fuel cell (FC). In the effort to enable the technology for autonomous applications, the novel concept of using FC exhaust air for hydrogen desorption process replacing an external heating agent was successfully proved. Experimental setups and results of the experiments are presented and discussed. © 2018 University of Minho. All rights reserved.},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
More than 900 settlements in Russia are located outside the centralized grid. An average daily load of these small towns is around 30-40 kW with 70 kW peaks in January and October. Given high solar potential in these areas of 3.5 to 4.5 kWh per m2/day, a pilot project with solar panels in Batamai village produced 30 000 kWh and saved 11 tons of diesel in a year. In order to increase diesel replacement percentage and eliminate instability issues, a need for energy storage system was formulated. Current work highlights the development of a novel kW scale power production unit that utilizes metal-hydride (MH) energy storage and 1 kW PEM fuel cell (FC). In the effort to enable the technology for autonomous applications, the novel concept of using FC exhaust air for hydrogen desorption process replacing an external heating agent was successfully proved. Experimental setups and results of the experiments are presented and discussed. © 2018 University of Minho. All rights reserved.
2016
Ustinov, A.; Khayrullina, A.; Borzenko, V.; Khmelik, M.; Sveshnikova, A.
Development method of Hybrid Energy Storage System, including PEM fuel cell and a battery Conference
vol. 745, no. 3, 2016, (cited By 4).
@conference{Ustinov2016,
title = {Development method of Hybrid Energy Storage System, including PEM fuel cell and a battery},
author = {A. Ustinov and A. Khayrullina and V. Borzenko and M. Khmelik and A. Sveshnikova},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84995436793&doi=10.1088%2f1742-6596%2f745%2f3%2f032152&partnerID=40&md5=58811fb7b7f57bd6a5b3674a529ead58},
doi = {10.1088/1742-6596/745/3/032152},
year = {2016},
date = {2016-01-01},
journal = {Journal of Physics: Conference Series},
volume = {745},
number = {3},
abstract = {Development of fuel cell (FC) and hydrogen metal-hydride storage (MH) technologies continuously demonstrate higher efficiency rates and higher safety, as hydrogen is stored at low pressures of about 2 bar in a bounded state. A combination of a FC/MH system with an electrolyser, powered with a renewable source, allows creation of an almost fully autonomous power system, which could potentially replace a diesel-generator as a back-up power supply. However, the system must be extended with an electro-chemical battery to start-up the FC and compensate the electric load when FC fails to deliver the necessary power. Present paper delivers the results of experimental and theoretical investigation of a hybrid energy system, including a proton exchange membrane (PEM) FC, MH- accumulator and an electro-chemical battery, development methodology for such systems and the modelling of different battery types, using hardware-in-the-loop approach. The economic efficiency of the proposed solution is discussed using an example of power supply of a real town of Batamai in Russia. © Published under licence by IOP Publishing Ltd.},
note = {cited By 4},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Development of fuel cell (FC) and hydrogen metal-hydride storage (MH) technologies continuously demonstrate higher efficiency rates and higher safety, as hydrogen is stored at low pressures of about 2 bar in a bounded state. A combination of a FC/MH system with an electrolyser, powered with a renewable source, allows creation of an almost fully autonomous power system, which could potentially replace a diesel-generator as a back-up power supply. However, the system must be extended with an electro-chemical battery to start-up the FC and compensate the electric load when FC fails to deliver the necessary power. Present paper delivers the results of experimental and theoretical investigation of a hybrid energy system, including a proton exchange membrane (PEM) FC, MH- accumulator and an electro-chemical battery, development methodology for such systems and the modelling of different battery types, using hardware-in-the-loop approach. The economic efficiency of the proposed solution is discussed using an example of power supply of a real town of Batamai in Russia. © Published under licence by IOP Publishing Ltd.
Borzenko, V.; Eronin, A.
The use of air as heating agent in hydrogen metal hydride storage coupled with PEM fuel cell Journal Article
In: International Journal of Hydrogen Energy, vol. 41, no. 48, pp. 23120-23124, 2016, (cited By 17).
@article{Borzenko201623120,
title = {The use of air as heating agent in hydrogen metal hydride storage coupled with PEM fuel cell},
author = {V. Borzenko and A. Eronin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85004191376&doi=10.1016%2fj.ijhydene.2016.10.067&partnerID=40&md5=2049b8be628fbfd39b09e9a37d77ab08},
doi = {10.1016/j.ijhydene.2016.10.067},
year = {2016},
date = {2016-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {41},
number = {48},
pages = {23120-23124},
abstract = {The possibility to refuel air-cooled PEMFC by hydrogen desorbed from low temperature metal hydride storage using the FC exhaust air was successfully demonstrated. The volumetric flow of hydrogen exceeded the values needed to ensure 1.1 kW (e) FC capacity level. Experimental setup, the results of experimental investigations are presented and discussed, as well as the reserves for the technology application for kW scale power production units based on air-cooled fuel cells. © 2016 Hydrogen Energy Publications LLC},
note = {cited By 17},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The possibility to refuel air-cooled PEMFC by hydrogen desorbed from low temperature metal hydride storage using the FC exhaust air was successfully demonstrated. The volumetric flow of hydrogen exceeded the values needed to ensure 1.1 kW (e) FC capacity level. Experimental setup, the results of experimental investigations are presented and discussed, as well as the reserves for the technology application for kW scale power production units based on air-cooled fuel cells. © 2016 Hydrogen Energy Publications LLC
Dunikov, D.; Borzenko, V.; Blinov, D.; Kazakov, A.; Lin, C. -Y.; Wu, S. -Y.; Chu, C. -Y.
Biohydrogen purification using metal hydride technologies Journal Article
In: International Journal of Hydrogen Energy, vol. 41, no. 46, pp. 21787-21794, 2016, (cited By 33).
@article{Dunikov201621787,
title = {Biohydrogen purification using metal hydride technologies},
author = {D. Dunikov and V. Borzenko and D. Blinov and A. Kazakov and C. -Y. Lin and S. -Y. Wu and C. -Y. Chu},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84997831598&doi=10.1016%2fj.ijhydene.2016.08.190&partnerID=40&md5=6190ee98cd5996164695721cc89aa4b5},
doi = {10.1016/j.ijhydene.2016.08.190},
year = {2016},
date = {2016-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {41},
number = {46},
pages = {21787-21794},
abstract = {Metal hydrides are known for their ability of selective hydrogen absorption and might be used for hydrogen purification. We demonstrate separation of hydrogen/carbon dioxide mixtures with the use of two AB5-type alloys. A metal hydride reactor was filled with 1 kg of “high-pressure” alloy La0.9Ce0.1Ni5 (Peq = 1.96 bar at 293 K) and 1 kg of “low-pressure” alloy LaNi4.8Mn0.3Fe0.1 (Peq = 0.38 bar at 293 K), maximum H2 capacity is 140 st.L, nominal operating H2 capacity is 110 st.L. Hydrogen concentration was in the range 40–60 vol.%, feed pressure 5.6 bar. Separation efficiency and hydrogen recovery depend on equilibrium pressure of absorption, which has to be as low as possible to increase hydrogen recovery. The purification rate of 81 st.L/h from a mixture containing 59 vol.% of hydrogen with recovery 94% was achieved for the “low-pressure” alloy. The results show that metal hydride H2/CO2 separation unit can be a second stage of a biohydrogen upgrade system after a membrane module. Polymer membranes can defend metal hydrides from poisonous impurities and high selectivity of metal hydrides can improve the overall performance of the purification system. © 2016 Hydrogen Energy Publications LLC},
note = {cited By 33},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Metal hydrides are known for their ability of selective hydrogen absorption and might be used for hydrogen purification. We demonstrate separation of hydrogen/carbon dioxide mixtures with the use of two AB5-type alloys. A metal hydride reactor was filled with 1 kg of “high-pressure” alloy La0.9Ce0.1Ni5 (Peq = 1.96 bar at 293 K) and 1 kg of “low-pressure” alloy LaNi4.8Mn0.3Fe0.1 (Peq = 0.38 bar at 293 K), maximum H2 capacity is 140 st.L, nominal operating H2 capacity is 110 st.L. Hydrogen concentration was in the range 40–60 vol.%, feed pressure 5.6 bar. Separation efficiency and hydrogen recovery depend on equilibrium pressure of absorption, which has to be as low as possible to increase hydrogen recovery. The purification rate of 81 st.L/h from a mixture containing 59 vol.% of hydrogen with recovery 94% was achieved for the “low-pressure” alloy. The results show that metal hydride H2/CO2 separation unit can be a second stage of a biohydrogen upgrade system after a membrane module. Polymer membranes can defend metal hydrides from poisonous impurities and high selectivity of metal hydrides can improve the overall performance of the purification system. © 2016 Hydrogen Energy Publications LLC
2012
Dunikov, D.; Borzenko, V.; Malyshenko, S.
Influence of impurities on hydrogen absorption in a metal hydride reactor Journal Article
In: International Journal of Hydrogen Energy, vol. 37, no. 18, pp. 13843-13848, 2012, (cited By 42).
@article{Dunikov201213843,
title = {Influence of impurities on hydrogen absorption in a metal hydride reactor},
author = {D. Dunikov and V. Borzenko and S. Malyshenko},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84865480025&doi=10.1016%2fj.ijhydene.2012.04.078&partnerID=40&md5=d1c5a8946a792e1844ee79187a2c6116},
doi = {10.1016/j.ijhydene.2012.04.078},
year = {2012},
date = {2012-01-01},
journal = {International Journal of Hydrogen Energy},
volume = {37},
number = {18},
pages = {13843-13848},
abstract = {Absorption of pure and impure hydrogen in AB 5-type metal hydride reactors is experimentally investigated. The process can be divided into three phases: "adiabatic heating" phase, "heat transfer" phase and "end of reaction" phase. Critical phenomenon is observed between "adiabatic heating" and "heat transfer" phases. The crisis occurs when temperature of metal hydride bed reaches maximum, which is close to equilibrium temperature for inlet pressure, and is followed by significant slowdown of the reaction rate. Presence and accumulation of impurities in the voids of metal hydride bed precipitates crisis due to decreasing of hydrogen partial pressure. Two strategies of hydrogen purification with the aid of metal hydrides are discussed. Mixture filtration through the metal hydride bed is recommended for high concentration of impurities and PSA (or TSA) suits for nearly pure hydrogen. Highlights: Critical phenomenon slows hydrogen sorption rate in metal hydride bed. Crisis is connected with insufficient heat transfer and presence of impurities. Impurities have to be removed from voids of metal hydride bed. Flow-through technique is preferable for hydrogen-poor feed gas. With metal hydrides hydrogen recovery higher than 95% can be achieved. © 2012 Hydrogen Energy Publications, LLC.},
note = {cited By 42},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Absorption of pure and impure hydrogen in AB 5-type metal hydride reactors is experimentally investigated. The process can be divided into three phases: "adiabatic heating" phase, "heat transfer" phase and "end of reaction" phase. Critical phenomenon is observed between "adiabatic heating" and "heat transfer" phases. The crisis occurs when temperature of metal hydride bed reaches maximum, which is close to equilibrium temperature for inlet pressure, and is followed by significant slowdown of the reaction rate. Presence and accumulation of impurities in the voids of metal hydride bed precipitates crisis due to decreasing of hydrogen partial pressure. Two strategies of hydrogen purification with the aid of metal hydrides are discussed. Mixture filtration through the metal hydride bed is recommended for high concentration of impurities and PSA (or TSA) suits for nearly pure hydrogen. Highlights: Critical phenomenon slows hydrogen sorption rate in metal hydride bed. Crisis is connected with insufficient heat transfer and presence of impurities. Impurities have to be removed from voids of metal hydride bed. Flow-through technique is preferable for hydrogen-poor feed gas. With metal hydrides hydrogen recovery higher than 95% can be achieved. © 2012 Hydrogen Energy Publications, LLC.