TY - JOUR
T1 - Hydroxyl aluminium silicate clay for biohydrogen purification by pressure swing adsorption
T2 - Physical properties, adsorption isotherm, multicomponent breakthrough curve modelling, and cycle simulation
AU - Kuroda, Shohei
AU - Nagaishi, Taira
AU - Kameyama, Mitsuo
AU - Koido, Kenji
AU - Seo, Yuna
AU - Dowaki, Kiyoshi
N1 - Funding Information:
This work was supported by Grant-in-Aid for Scientific Research (C) from the Japan Society for the Promotion of Science ( 18K05018 ).
Publisher Copyright:
© 2018 Hydrogen Energy Publications LLC
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2018/8/23
Y1 - 2018/8/23
N2 - Hydroxyl aluminium silicate clay (HAS-Clay) is a novel adsorbent in pressure swing adsorption for CO2 capture (CO2-PSA) and can also adsorb H2S. To investigate the performance of HAS-Clay as a CO2-PSA adsorbent, multicomponent breakthrough curves were determined using experimental measurements and theoretical models, and, based on those results, CO2-PSA simulations were conducted. The breakthrough curves produced from the theoretical models agreed well with those derived from experiment. CO2-PSA with HAS-Clay could purify biomass-gasification-derived producer gas of contaminants (carbon dioxide, methane, carbon monoxide, and hydrogen sulfide) with high CO2 recovery and low energy input. The CO2 recovery rate of CO2-PSA with HAS-Clay was 58.4%, and the CO2 purity was 98.4%. The specific energy demand was 2.83 MJ/kg-CO2. In addition, the H2S regenerability of HAS-Clay was investigated. The results show that HAS-Clay retained the ability to adsorb H2S at a steady-state value of 0.02 mol/kg for the regeneration cycles. Therefore, it is suggested that CO2-PSA with HAS-Clay is suitable for CO2 separation from multicomponent gas mixtures.
AB - Hydroxyl aluminium silicate clay (HAS-Clay) is a novel adsorbent in pressure swing adsorption for CO2 capture (CO2-PSA) and can also adsorb H2S. To investigate the performance of HAS-Clay as a CO2-PSA adsorbent, multicomponent breakthrough curves were determined using experimental measurements and theoretical models, and, based on those results, CO2-PSA simulations were conducted. The breakthrough curves produced from the theoretical models agreed well with those derived from experiment. CO2-PSA with HAS-Clay could purify biomass-gasification-derived producer gas of contaminants (carbon dioxide, methane, carbon monoxide, and hydrogen sulfide) with high CO2 recovery and low energy input. The CO2 recovery rate of CO2-PSA with HAS-Clay was 58.4%, and the CO2 purity was 98.4%. The specific energy demand was 2.83 MJ/kg-CO2. In addition, the H2S regenerability of HAS-Clay was investigated. The results show that HAS-Clay retained the ability to adsorb H2S at a steady-state value of 0.02 mol/kg for the regeneration cycles. Therefore, it is suggested that CO2-PSA with HAS-Clay is suitable for CO2 separation from multicomponent gas mixtures.
KW - Breakthrough curve
KW - Carbon dioxide separation
KW - HAS-Clay
KW - Hydrogen purification
KW - Pressure swing adsorption
KW - Specific energy demand
UR - http://www.scopus.com/inward/record.url?scp=85050883431&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2018.07.065
DO - 10.1016/j.ijhydene.2018.07.065
M3 - Article
AN - SCOPUS:85050883431
SN - 0360-3199
VL - 43
SP - 16573
EP - 16588
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 34
ER -