Valorisation of biomass pellets to renewable fuel and chemicals using pyrolysis: characterisation of pyrolysis products and its application. Issue 1 (2nd January 2020)

• Record Type: Journal Article
• Authors: Husain, Zakir; Ansari, Khursheed B.; Chatake, Vikram S.; Urunkar, Yogesh; Pandit, Aniruddha B.; Joshi, Jyeshtharaj B.
• Is Part Of: Indian chemical engineer. Volume 62:Issue 1(2020)
• Page Start: 78
• Page End: 91
• Publication Date: 2020-01-02
• Subjects: Pyrolysis -- bio-oil -- biochar -- reaction mechanism -- net energy return; Chemical engineering -- Research -- India -- Periodicals; 660
• DOI: 10.1080/00194506.2019.1635047
• Languages: English
• ISSNs: 0019-4506

Abstract

ABSTRACT: The pyrolysis of biomass (agro and garden waste) pellets in the temperature range of 200–600°C is studied in the present work. The pyrolysis of biomass pellets in a batch reactor generates mainly CO2 and CO gases at 300°C and H2 gas along with C1 -C3 hydrocarbons at 600°C. The yield of non-condensable gases, liquid products and biochar was 30, 38 wt.% (30 wt.% bio-oil, 8 wt.% water), and 32 wt.%, respectively. The MS analysis of the bio-oil depicted the presence of light oxygenates, furans, anhydrosugars, and phenolic compounds. The biochar showed porous and macrostructure with various surface functional groups. A kinetic study of thermal decomposition of biomass pellets was performed along with a reaction mechanism of the product formation during the pyrolysis. Net energy return calculations depicted that the pyrolysis system can be self-sustained. The present study demonstrates the possible conversion of biomass pellets into useful products such as acids, aldehydes, phenolic compounds and carbonaceous char. GRAPHICAL ABSTRACT: