Co-gasification of hardwood chips and crude glycerol in a pilot scale downdraft gasifier

Seeking appropriate approaches to utilize the crude glycerol produced in biodiesel production is very important for the economic viability and environmental impacts of biodiesel industry. Gasification may be one of options for addressing this issue. Co-gasification of hardwood chips blending with cr...

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Bibliographic Details
Published in:Bioresource technology 2011-05, Vol.102 (10), p.6266-6272
Main Authors: Wei, Lin, Pordesimo, Lester O., Haryanto, Agus, Wooten, James
Format: Article
Language:English
Subjects:
Biodiesel
Biological and medical sciences
Blending
Chips
Co-gasification
Crude glycerol
Downdraft
Downdraft gasifier
Fundamental and applied biological sciences. Psychology
Gases
Gasification
Glycerol - chemistry
Glycerols
Hardwood chip
Hardwoods
Pilot Projects
Pilots
Syngas
Wood
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Summary:Seeking appropriate approaches to utilize the crude glycerol produced in biodiesel production is very important for the economic viability and environmental impacts of biodiesel industry. Gasification may be one of options for addressing this issue. Co-gasification of hardwood chips blending with crude glycerol in various loading levels was undertaken in the study involving a pilot scale fixed-bed downdraft gasifier. The results indicated that crude glycerol loading levels affected the gasifier’s performance and the quality of syngas produced. When crude glycerol loading level increased, the CO, CH 4, and tar concentrations of the syngas also increased but particle concentration decreased. Though further testing is suggested, downdraft gasifiers could be run well with hardwood chips blending with liquid crude glycerol up to 20 (wt%). The syngas produced had relatively good quality for fueling internal combustion engines. This study provides a considerable way to utilize crude glycerol.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2011.02.109