Effect of process parameters on production of biochar from biomass waste through pyrolysis: A review

Published Date
March 2016, Vol.55:467–481, doi:10.1016/j.rser.2015.10.122

Author 

Manoj Tripathi ^a

J.N. Sahu ^b,,,

P. Ganesan ^a,

aDepartment of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia

bPetroleum and Chemical Engineering Programme Area, Faculty of Engineering, Institut Teknologi Brunei, Tungku Gadong, P.O. Box 2909, Brunei Darussalam

Received 10 December 2014. Revised 12 August 2015. Accepted 26 October 2015. Available online 21 November 2015. 

Abstract

Biomass is considered to have potential to be used as an alternative energy source. High carbon content present in biomass converts it into high energy biochar on thermochemical treatment. Among few well established thermochemical technologies for the treatment of biomass and biogenic waste to produce high energy char along with oil and gaseous yield, pyrolysis is the most studied and discussed technique in the recent past. A comparison between the existing techniques is established in the present work. Production of char from the biomass and biogenic wastes is reviewed and it was found that yield of the biochar depends upon the biomass composition like moisture content and presence of cellulose or lignin. Pyrolysis product distribution and their quality strongly depend upon the process parameters. Different biomasses which can be used as raw material in pyrolysis are also reviewed and categorized depending upon their source. Pyrolysis process parameters such as temperature, heating rate, residence time etc. also influence the biochar yield. This study discusses the effect of these process parameters on the production of biochar through pyrolysis of biomass.

Keywords

Biomass

Thermochemical conversion

Pyrolysis

Process parameter

Biochar

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