Open AccessTar analysis in syngas derived from pelletized biomass in a commerical stratified downdraft gasifier
Author(s) -
Gopal Gautam,
Sushil Adhikari,
Suchithra ThangalazhyGopakumar,
Christian Brodbeck,
Sushil Bhavnani,
S.S. Taylor
Publication year - 2011
Publication title -
bioresources
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 69
ISSN - 1930-2126
DOI - 10.15376/biores.6.4.4652-4661
Subject(s) - tar (computing) , syngas , toluene , wood gas generator , naphthalene , syngas to gasoline plus , pulp and paper industry , waste management , woodchips , pellets , environmental science , pyrolysis , xylene , biomass (ecology) , materials science , chemistry , organic chemistry , catalysis , composite material , geology , engineering , coal , hydrogen production , oceanography , steam reforming , computer science , programming language
A study was conducted to quantify tar formation in a stratified downdraft gasifier using wood pellets. The effect of biomass flow rate on tar concentration was also analyzed, and more than thirty compounds in tar were quantified. Among the different compounds in tar, tertiary condensed products such as toluene, o/p-xylene, naphthalene, phenol, styrene, and indene were observed in significant amounts. Tar concentration in the syngas was found to be in the range of 340 to 680 mg/Nm3. These concentrations were found to be much higher when compared to a similar gasifier using woodchips.