Biochar Pelletisation and Physio-mechanical Properties of Pellets

Syed Imran; B. Sanjeeva Reddy; D. Ashish; G. Venkatesh

doi:10.52151/jae2020573.1721

Authors

Syed Imran Scientist (FMP) ICAR – Central Institute of Agricultural Engineering, Nabi Bagh, Bhopal - 462 038 Author
B. Sanjeeva Reddy 2Principal Scientist (FMP), ICAR – Central Research Institute for Dryland Agriculture, Santosh Nagar, Saidabad, Hyderabad - 500 059. Author
D. Ashish ICAR – Central Research Institute for Dryland Agriculture, Santosh Nagar, Saidabad, Hyderabad - 500 059. Author
G. Venkatesh Senior Scientist (Agro-forestry), ICAR – Central Research Institute for Dryland Agriculture, Santosh Nagar, Saidabad, Hyderabad - 500 059. Author

DOI:

https://doi.org/10.52151/jae2020573.1721

Keywords:

Biochar pellet, drum pelletiser, binder, mechanical properties

Abstract

Application of powder biochar to soil is a major concern due to losses as high as 30 % at various stages as well as safety of applicator from dust pollution. A drum-type machine capable of using easily available binder materials as maize flour, rice starch, carboxymethyl cellulose sodium (CMC) and commercial starch with thermal treatment were evaluated. Results showed that on average commercial starch 66.4 % and rice starch binder yielded 62.77 % pellets in the desirable size range. The pellets were non-hygroscopic in nature, biochar field capacity was 93 % (d.b.), and pellets values varied from 57.8 % to 78 % (d.b.) depending on type of binder. Pellet using rice starch binder had highest bulk density of 390.2 kg.m-3. Pellet using rice starch binder also had 99.12 % and 97 % attrition resistance as compared to CMC (98.02 %) and inter-granular (91.78 %) in presence of similar size harder foreign material. Commercial and rice starch binder added pellets also showed promising value of crushing strength of 2.5 kg.cm-2 and 2.4 kg.cm-2, respectively.

Author Biographies

Syed Imran, Scientist (FMP) ICAR – Central Institute of Agricultural Engineering, Nabi Bagh, Bhopal - 462 038

Scientist (FMP)
B. Sanjeeva Reddy, 2Principal Scientist (FMP), ICAR – Central Research Institute for Dryland Agriculture, Santosh Nagar, Saidabad, Hyderabad - 500 059.

Principal Scientist (FMP)
D. Ashish, ICAR – Central Research Institute for Dryland Agriculture, Santosh Nagar, Saidabad, Hyderabad - 500 059.

Scientist ICAR – Central Research Institute for Dryland Agriculture, Santosh Nagar, Saidabad, Hyderabad - 500 059.
G. Venkatesh, Senior Scientist (Agro-forestry), ICAR – Central Research Institute for Dryland Agriculture, Santosh Nagar, Saidabad, Hyderabad - 500 059.

Senior Scientist

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