Co-pyrolysis characteristics and kinetic analysis of organic food waste and plastic. (February 2018)

• Record Type: Journal Article
• Authors: Tang, Yijing; Huang, Qunxing; Sun, Kai; Chi, Yong; Yan, Jianhua
• Is Part Of: Bioresource technology. Volume 249(2018)
• Page Start: 16
• Page End: 23
• Publication Date: 2018-02
• Subjects: SP soybean protein -- PVC polyvinyl chloride -- Exp. experimental -- Cal. calculated; Co-pyrolysis -- Thermogravimetric analysis -- Kinetic -- Tar; 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.2017.09.210
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: The co-pyrolysis of nitrogen enriched food waste and PVC will reduce the content of nitrogen-containing components in tar. Both TGA and fixed-bed experiments were carried out to estimate the co-pyrolysis behavior. The interaction could accelerate reaction rate and decrease the activation energy compared with calculated results. The interaction promoted the formation of heavier tar components. Results indicate a troublesome effect during co-pyrolysis. Sorting and dechlorination should be adopted before pyrolysis. Abstract: In this work, typical organic food waste (soybean protein (SP)) and typical chlorine enriched plastic waste (polyvinyl chloride (PVC)) were chosen as principal MSW components and their interaction during co-pyrolysis was investigated. Results indicate that the interaction accelerated the reaction during co-pyrolysis. The activation energies needed were 2–13% lower for the decomposition of mixture compared with linear calculation while the maximum reaction rates were 12–16% higher than calculation. In the fixed-bed experiments, interaction was observed to reduce the yield of tar by 2–69% and promote the yield of char by 13–39% compared with linear calculation. In addition, 2–6 times more heavy components and 61–93% less nitrogen-containing components were formed for tar derived from mixtures.