Catalytic microwave preheated co-pyrolysis of lignocellulosic biomasses: A study on biofuel production and its characterization. (March 2022)

• Record Type: Journal Article
• Authors: Jennita Jacqueline, P.; Shenbaga Muthuraman, V.; Karthick, C.; Alaswad, Abed; Velvizhi, G.; Nanthagopal, K.
• Is Part Of: Bioresource technology. Volume 347(2022)
• Publication Date: 2022-03
• Subjects: Pyrolysis -- Lignocellulosic Biomass -- Bio-oil -- CaO catalyst -- Renewable fuel; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2021.126382
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Catalytic and non-catalytic co-pyrolysis processes are used for bio-oil production. Microwave preheated co-pyrolysis yielded higher bio-oil at 0.25 mm particle size. CaO aided co-pyrolysis of PP, GS and PCW showed bio-oil yield of 51.6%. FE-SEM results confirmed the changes in morphological structure of biomasses with CaO. NMR results of pyrolysis oil exposed the presence the hydroxyl radicals and ethers. Abstract: In this present study, microwave pre-treatment has been used for sustainable biofuel production from three different biowastes through catalytic aided co-pyrolysis techniques. The experimental investigations have been carried out to develop biofuel at temperature (350-550℃), heating rate (15-50℃/min) and particle size (0.12–0.38 mm). The resultant biofuels were characterized using TGA, DTA, FE-SEM, FTIR spectroscopy and NMR spectrum. The pyrolysis process of biomasses without and with catalyst resulted in the yield rate of 29–37% and 39–51% respectively. Moreover, the CaO catalytic co-pyrolysis process of pomegranate peel, groundnut shell and palmcone wastes with a ratio of 50:50 at 0.25 mm particle size has resulted in the highest yield rate of 51.6%. The NMR result of bio-oil samples produced hydroxyl group and aliphatics which clearly state the suitability of bio-oils for automotive application. The bio-oil had promising fuel characteristics consisting more energy density (29.1 MJ/kg), less oxygen content and free of nitrogen.