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A comparison of the energy and product distribution from biomass gasifiers
Author(s) -
Esplin G. J.,
Fung D. P. C.,
Hsu C. C.
Publication year - 1986
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450640417
Subject(s) - wood gas generator , fluidized bed , environmental science , biomass (ecology) , waste management , raw material , process engineering , engineering , coal , chemistry , oceanography , geology , organic chemistry
A detailed analyses of the raw producer gas streams generated by a downdraft gasifier and by a fluidized‐bed gasifier are presented and are discussed in terms of raw gas clean‐up considerations and of energy conversion efficiency. The major gasifier operating parameters such as fuel/air ratio, carbon conversion efficiency, net energy conversion efficiency, and producer gas heating value are then compared between seven operational gasifiers and a computer simulation model of a fluidized‐bed gasifier developed by Queen's University. It is concluded that the Queen's University model correctly predicts that the fuel/air ratio is the single most important parameter for determining gasifier performance. Downdraft gasifiers exhibit superior energy conversion efficiency and producer gas quality because they utilize a higher fuel/air ratio than do fluidized bed gasifiers.