Elucidating the solid, liquid, and gaseous products from batch pyrolysis of cotton gin trash Academic Article uri icon


  • Cotton gin trash (CGT) was pyrolyzed at different temperatures (500c, 600c, 700c, and 800c) using an externally heated batch reactor. The average yields of output products (solid/char, liquid/bio-oil, and gas) were determined. The heating value (HV) of CGT was measured to be around 15.5 MJ kg -1. Gas yield increased while char yield decreased as temperature was increased. The maximum char yield of 38 wt% was obtained after 30 min of pyrolysis at 500c. The char had the largest fraction of the energy output (44% to 51%), followed by gas (6% to 15%) and bio-oil (4% to 5%). The maximum gas yield of 35 wt% was observed at 800c. The average yield of CO, H 2, and total hydrocarbons (THC) generally increased with increased temperature, while CO 2 production decreased. Methane, ethane, and propane were the dominant constituents of the THC. The highest bio-oil yield of about 30 wt% was observed at 600c. The HV of bio-oil was low (2 to 3 MJ kg -1) due to minimal non-hydrocarbon compounds and high moisture content (MC). The heating value of the organic portion of the bio-oil was measured to be 6.1 MJ kg -1. 2010 American Society of Agricultural and Biological Engineers.

published proceedings

  • Transactions of the ASABE

author list (cited authors)

  • Aquino, F. L., Capareda, S. C., & Parnell, C. B.

complete list of authors

  • Aquino, FL||Capareda, SC||Parnell, CB

publication date

  • May 2010