Pyrolysis of agricultural biomass residues: Comparative study of corn cob, wheat straw, rice straw and rice husk

• Published in: Bioresource technology Vol. 237; pp. 57 - 63
• Main Authors: Biswas, Bijoy, Pandey, Nidhi, Bisht, Yashasvi, Singh, Rawel, Kumar, Jitendra, Bhaskar, Thallada
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.08.2017
• Subjects: agricultural wastes; Agriculture biomass; Bio-char; Bio-oil; Biofuels; Biomass; corn cobs; distribution (economics); Fixed bed; Fourier transform infrared spectroscopy; Hot Temperature; hydrocarbons; nuclear magnetic resonance spectroscopy; Oryza; phenolic compounds; pyrolysis; rice hulls; rice straw; Slow pyrolysis; Spectroscopy, Fourier Transform Infrared; temperature; Triticum; wheat straw; Zea mays; Agriculture biomass; Bio-char; Fixed bed; Slow pyrolysis; Bio-oil
• ISSN: 0960-8524; 1873-2976; 1873-2976
• DOI: 10.1016/j.biortech.2017.02.046

•Pyrolysis behaviors of four agricultures residue were compared.•Higher bio-oil yield obtained (47.3wt%) for corn cob.•Optimum temperature 450°C for CC & RH and 400°C for RS & WS.•Organic carbon conversion high in CC and RH than WS and RS. Pyrolysis studies on conventional biomass were carried out in fixed bed reactor at different temperatures 300, 350, 400 and 450°C. Agricultural residues such as corn cob, wheat straw, rice straw and rice husk showed that the optimum temperatures for these residues are 450, 400, 400 and 450°C respectively. The maximum bio-oil yield in case of corn cob, wheat straw, rice straw and rice husk are 47.3, 36.7, 28.4 and 38.1wt% respectively. The effects of pyrolysis temperature and biomass type on the yield and composition of pyrolysis products were investigated. All bio-oils contents were mainly composed of oxygenated hydrocarbons. The higher area percentages of phenolic compounds were observed in the corn cob bio-oil than other bio-oils. From FT-IR and 1H NMR spectra showed a high percentage of aliphatic functional groups for all bio-oils and distribution of products is different due to differences in the composition of agricultural biomass.