Thermal treatment of tar generated during co-gasification of coconut shell and charcoal. (20th May 2020)

• Record Type: Journal Article
• Authors: Monir, Minhaj Uddin; Khatun, Fatema; Abd Aziz, Azrina; Vo, Dai-Viet N.
• Is Part Of: Journal of cleaner production. Volume 256(2020)
• Publication Date: 2020-05-20
• Subjects: Tar -- Thermal treatment -- Coconut shell -- Charcoal -- Co-gasification; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2020.120305
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: Biomass-derived syngas is one of the most promising, feasible, clean and sustainable bioenergies widely produced through biomass gasification. However, tar content from syngas is essentially needed to be reduced for avoiding engines damage. Therefore, the aim of this study is to investigate the reduction efficiency of tar by performing thermal treatment at the temperature of 700 °C, 800 °C, 900 °C and 1000 °C in a digital Muffle furnace. The tar samples (before and after thermal treatments) were investigated by Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy analyses while the morphological changes were examined using a scanning electron microscope coupled with energy-dispersive X-ray analysis. Experimental results show that tar reduction efficiency was significantly increased from 81.87% to 97.25% by applying thermal treatment from 700 °C to 1000 °C. The functional groups were reduced due to rising temperature. Furthermore, the roughness of tar was enhanced considerably with increasing temperature. Therefore, this tar-free syngas can be used as a clean and sustainable bioenergy for future energy demand. Graphical abstract: Image 104 Highlights: Coconut shell and charcoal were used as a source of tar containing syngas. Achieved tar removal efficiency through thermal treatment was investigated. Co-product tar was thermally treated at the temperature of 700 °C–1000 °C. Functional groups were reduced with increasing temperature up to 1000 °C. Highest tar reduction efficiency was obtained 97.25% at the temperature of 1000 °C.