Characteristics and kinetics of cattle litter pyrolysis in a tubing reactor

• Published in: Bioresource technology Vol. 101; no. 1; pp. S104 - S108
• Main Authors: Ngo, Thanh-An, Kim, Jinsoo, Kim, Seung-Soo
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 2010; [New York, NY]: Elsevier Ltd
• Subjects: animal husbandry; Animal Husbandry - methods; Animals; biogas; Biomass; Bioreactors; Carbon Dioxide - analysis; Carbon Monoxide - analysis; Cattle; Cattle litter; cattle manure; Cellulose - analysis; chemical composition; Gases - analysis; Hot Temperature; Kinetics; Lignin - analysis; Models, Biological; Models, Chemical; Polysaccharides - analysis; Pyrolysis; renewable energy sources; TGA; thermogravimetry; Thermogravimetry - methods; Time Factors; Pyrolysis; Cattle litter; Biomass; Kinetics; TGA
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2009.06.034

The kinetic parameters for the pyrolysis of cattle litter were evaluated by thermogravimetric analysis (TGA). The cattle litter was pyrolyzed in a tubing reactor at 340, 360 and 380 °C with various retention times from 4 to 20 min. The influence of the pyrolysis conditions on the product yields was also examined. The maximum yields of gas and liquid products, 16.1 and 17.2 wt%, respectively, were obtained after pyrolysis at 380 °C for 20 min. The gas products were mainly C 1–C 4 hydrocarbons. The experimental results of the product distribution were well fitted with the lumped kinetic model. The reaction pathway was investigated based on the calculated kinetic constants.