EconPapers    
Economics at your fingertips  
 

New annular steam-biomass reactor design for hydrogen-enriched producer gas production

Mohammad Junaid Khan, Khaled Ali Al-attab and Chan Keng Wai

Renewable Energy, 2023, vol. 214, issue C, 154-167

Abstract: Biomass conversion using air gasification suffers from the high N2 gas dilution. Using steam as gasifying agent eliminates this issue, but heat must be supplied efficiently using external sources. This study investigated biomass steam gasification in a new annular reactor design with a gas heating jacket. This experimental study used two steam injection configurations: bottom and top to evaluate the effect of gasification temperature and steam to biomass (S/B) ratio on H2% using wood pellets. Temperature varied in the range of 300–600 °C for bottom injector, while S/B varied from 1.7 to 2.6. Peak H2% was 27.7% and higher heating value (HHV) of gas was 7 MJ/Nm3. Using top injector enhanced the heat transfer which elevated the temperature range (700–950 °C) and reduced S/B ratio in the range of 1.3–2.2, achieving H2% of 44% at the optimum steam flow rate of 30 g/min with HHV of 12.7 MJ/Nm3. Tar contamination was reduced from 13.6 g/m3 to 7.4 g/m3 with the increase of S/B. The effect of different fuels including coconut shells charcoal (CSC), palm kernel shells (PKS), and Empty fruit bunch (EFB) on H2% was also investigated. H2% was 47.7% for CSC, followed by 46.3% for PKS and 44.7% for EFB.

Keywords: Biomass; Producer gas; Steam gasification; Hydrogen production; Tar reduction (search for similar items in EconPapers)
Date: 2023
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148123007814
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:214:y:2023:i:c:p:154-167

DOI: 10.1016/j.renene.2023.06.012

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu (repec@elsevier.com).

 
Page updated 2024-12-28
Handle: RePEc:eee:renene:v:214:y:2023:i:c:p:154-167