Supercritical fluid extraction (SFE) is a separation technology that uses supercritical fluid solvent. Hydrogen can be produced from biomass via two thermochemical processes: (1) gasification followed by reforming of the syngas, and (2) fast pyrolysis followed by reforming of the carbohydrate fraction of the bio-oil. In each process, the water–gas shift is used to convert the reformed gas into hydrogen, and pressure swing adsorption is used to purify the product. In comparison with other biomass thermochemical gasification such as air gasification or steam gasification, the supercritical water gasification can deal directly with the wet biomass without drying and have high gasification efficiency in lower temperatures. The cost of hydrogen production from supercritical water gasification of wet biomass was several times higher than the current price of hydrogen from steam methane reforming. Biomass was gasified in supercritical water at a series of temperatures and pressures during different resident times to form a product gas composed of H 2 , CO 2 , CO, CH 4 , and a small amount of C 2 H 4 and C 2 H 6 .
Energy Sources
Volume 27, 2005 - Issue 15
379
Views
42
CrossRef citations to date
0
Altmetric
Original Articles
Hydrogen Production from Biomass via Supercritical Water Extraction
Ayhan Demirbaş
Department of Chemical Engineering, Selcuk University, Konya, Turkey
Pages 1409-1417
|
Received 01 Aug 2003, Accepted 19 Oct 2003, Published online: 20 Aug 2006
Log in via your institution
Log in to Taylor & Francis Online
Restore content access
Restore content access for purchases made as guestPDF download + Online access
- 48 hours access to article PDF & online version
- Article PDF can be downloaded
- Article PDF can be printed
PDF download + Online access - Online
Checkout
* Local tax will be added as applicable
Related Research
People also read lists articles that other readers of this article have read.
Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.
Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.