Exergy and energy analysis of a polygeneration scheme for hydrogen production using steam gasification of biomass
| Parent link: | International Journal of Hydrogen Energy.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 218.— 2026.— Article number 154035, 12 p. |
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| Summary: | Title screen The principles of polygeneration for hydrogen production during steam gasification of biomass have been studied. A distinctive feature of the proposed scheme is its unconventional method for producing superheated steam, which is subsequently used in the gasification of plant-based materials. This method involves generating superheated steam of high temperature (up to 1000 °C) and low pressure (up to 30 bar) in a boiler and a turbine unit during biomass combustion. The polygeneration scheme was modeled using the Aspen Plus software package. The calculation results were validated against the authors experimental data on oxygen-free steam gasification of biomass, as well as against published data from other researchers. The calculation errors for the volume concentrations of CO and H2 in the producer gas do not exceed 20 %. For the studied temperature range of 700–960 °C and pressure range of 2–30 bar, the exergy and energy efficiencies of the polygeneration scheme were determined to be 34.9–38.8 % and 40.1–45.6 %, respectively. The energy and exergy efficiencies of biomass conversion to H2 for the studied modes are 15.9–24.4 % and 13.85–21.31 %, respectively. The study demonstrated that the best conditions for hydrogen production in the proposed scheme are achieved using superheated steam of 960 °C and 2 bar Текстовый файл AM_Agreement |
| Language: | English |
| Published: |
2026
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| Online Access: | https://doi.org/10.1016/j.ijhydene.2026.154035 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=685146 |
| Summary: | Title screen The principles of polygeneration for hydrogen production during steam gasification of biomass have been studied. A distinctive feature of the proposed scheme is its unconventional method for producing superheated steam, which is subsequently used in the gasification of plant-based materials. This method involves generating superheated steam of high temperature (up to 1000 °C) and low pressure (up to 30 bar) in a boiler and a turbine unit during biomass combustion. The polygeneration scheme was modeled using the Aspen Plus software package. The calculation results were validated against the authors experimental data on oxygen-free steam gasification of biomass, as well as against published data from other researchers. The calculation errors for the volume concentrations of CO and H2 in the producer gas do not exceed 20 %. For the studied temperature range of 700–960 °C and pressure range of 2–30 bar, the exergy and energy efficiencies of the polygeneration scheme were determined to be 34.9–38.8 % and 40.1–45.6 %, respectively. The energy and exergy efficiencies of biomass conversion to H2 for the studied modes are 15.9–24.4 % and 13.85–21.31 %, respectively. The study demonstrated that the best conditions for hydrogen production in the proposed scheme are achieved using superheated steam of 960 °C and 2 bar Текстовый файл AM_Agreement |
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| DOI: | 10.1016/j.ijhydene.2026.154035 |