Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification

The present study investigates the integrated catalytic adsorption (ICA) steam gasification of palm kernel shell for hydrogen production in a pilot scale atmospheric fluidized bed gasifier. The biomass steam gasification is performed in the presence of an adsorbent and a catalyst in the system. The...

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Main Authors: Khan, Z., Yusup, S., Ahmad, M.M., Chin, B.L.F.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.32022 /
Published: Elsevier Ltd 2014
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908674024&doi=10.1016%2fj.enconman.2014.03.024&partnerID=40&md5=57ed738efa9c660989a2d4f0eb2ab7f5
http://eprints.utp.edu.my/32022/
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spelling utp-eprints.320222022-03-29T04:06:49Z Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification Khan, Z. Yusup, S. Ahmad, M.M. Chin, B.L.F. The present study investigates the integrated catalytic adsorption (ICA) steam gasification of palm kernel shell for hydrogen production in a pilot scale atmospheric fluidized bed gasifier. The biomass steam gasification is performed in the presence of an adsorbent and a catalyst in the system. The effect of adsorbent to biomass (A/B) ratio (0.5-1.5 wt/wt), fluidization velocity (0.15-0.26 m/s) and biomass particle size (0.355-2.0 mm) are studied at temperature of 675 °C, steam to biomass (S/B) ratio of 2.0 (wt/wt) and biomass to catalyst ratio of 0.1 (wt/wt). Hydrogen composition and yield, total gas yield, and lower product gas heating values (LHVgas) increases with increasing A/B ratio, while particle size has no significant effect on hydrogen composition and yield, total gas and char yield, gasification and carbon conversion efficiency. However, gas heating values increased with increasing biomass particle size which is due to presence of high methane content in product gas. Meanwhile, medium fluidization velocity of 0.21 m/s favoured hydrogen composition and yield. The results showed that the maximum hydrogen composition and yield of 84.62 vol and 91.11 g H2/kg biomass are observed at A/B ratio of 1.5, S/B ratio of 2.0, catalyst to biomass ratio of 0.1 and temperature of 675 °C. The product gas heating values are observed in the range of 10.92-17.02 MJ/N m3. Gasification and carbon conversion efficiency are observed in the range of 25.66-42.95 and 20.61-41.95, respectively. These lower efficiencies are due to significant CO2 capturing in using adsorbent in pilot the scale fluidized bed gasification system. Comparative study with literature shows that the combination of adsorbent and catalyst produces better results in terms of hydrogen composition and gas heating values compared to that of only using biomass in steam catalytic gasification and in steam gasification with in situ CO2 adsorbent. © 2014 Elsevier Ltd. Elsevier Ltd 2014 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908674024&doi=10.1016%2fj.enconman.2014.03.024&partnerID=40&md5=57ed738efa9c660989a2d4f0eb2ab7f5 Khan, Z. and Yusup, S. and Ahmad, M.M. and Chin, B.L.F. (2014) Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification. Energy Conversion and Management, 87 . pp. 1224-1230. http://eprints.utp.edu.my/32022/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description The present study investigates the integrated catalytic adsorption (ICA) steam gasification of palm kernel shell for hydrogen production in a pilot scale atmospheric fluidized bed gasifier. The biomass steam gasification is performed in the presence of an adsorbent and a catalyst in the system. The effect of adsorbent to biomass (A/B) ratio (0.5-1.5 wt/wt), fluidization velocity (0.15-0.26 m/s) and biomass particle size (0.355-2.0 mm) are studied at temperature of 675 °C, steam to biomass (S/B) ratio of 2.0 (wt/wt) and biomass to catalyst ratio of 0.1 (wt/wt). Hydrogen composition and yield, total gas yield, and lower product gas heating values (LHVgas) increases with increasing A/B ratio, while particle size has no significant effect on hydrogen composition and yield, total gas and char yield, gasification and carbon conversion efficiency. However, gas heating values increased with increasing biomass particle size which is due to presence of high methane content in product gas. Meanwhile, medium fluidization velocity of 0.21 m/s favoured hydrogen composition and yield. The results showed that the maximum hydrogen composition and yield of 84.62 vol and 91.11 g H2/kg biomass are observed at A/B ratio of 1.5, S/B ratio of 2.0, catalyst to biomass ratio of 0.1 and temperature of 675 °C. The product gas heating values are observed in the range of 10.92-17.02 MJ/N m3. Gasification and carbon conversion efficiency are observed in the range of 25.66-42.95 and 20.61-41.95, respectively. These lower efficiencies are due to significant CO2 capturing in using adsorbent in pilot the scale fluidized bed gasification system. Comparative study with literature shows that the combination of adsorbent and catalyst produces better results in terms of hydrogen composition and gas heating values compared to that of only using biomass in steam catalytic gasification and in steam gasification with in situ CO2 adsorbent. © 2014 Elsevier Ltd.
format Article
author Khan, Z.
Yusup, S.
Ahmad, M.M.
Chin, B.L.F.
spellingShingle Khan, Z.
Yusup, S.
Ahmad, M.M.
Chin, B.L.F.
Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification
author_sort Khan, Z.
title Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification
title_short Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification
title_full Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification
title_fullStr Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification
title_full_unstemmed Hydrogen production from palm kernel shell via integrated catalytic adsorption (ICA) steam gasification
title_sort hydrogen production from palm kernel shell via integrated catalytic adsorption (ica) steam gasification
publisher Elsevier Ltd
publishDate 2014
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908674024&doi=10.1016%2fj.enconman.2014.03.024&partnerID=40&md5=57ed738efa9c660989a2d4f0eb2ab7f5
http://eprints.utp.edu.my/32022/
_version_ 1741197675764645888
score 11.62408

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