relation: https://khub.utp.edu.my/scholars/11179/
title: Microwave vacuum pyrolysis of waste plastic and used cooking oil for simultaneous waste reduction and sustainable energy conversion: Recovery of cleaner liquid fuel and techno-economic analysis
creator: Lam, S.S.
creator: Wan Mahari, W.A.
creator: Ok, Y.S.
creator: Peng, W.
creator: Chong, C.T.
creator: Ma, N.L.
creator: Chase, H.A.
creator: Liew, Z.
creator: Yusup, S.
creator: Kwon, E.E.
creator: Tsang, D.C.W.
description: Microwave vacuum pyrolysis was examined and compared to conventional pyrolysis for its technical and economic feasibility in co-processing of waste plastic and used cooking oil simultaneously to generate fuel product. The pyrolysis demonstrated beneficial process features with respect to high heating rate (29 °C/min) to provide fast heating, high process temperature for extensive cracking (581 °C), short process time (20 min), and low electrical energy consumption (0.38 kWh). The combined use of microwave vacuum pyrolysis and activated carbon reaction bed produced up to 84 wt yield of liquid oil, containing light hydrocarbons and higher heating value (49 MJ/kg) than diesel and gasoline, hence showing great promise for application as fuel. The use of activated carbon reaction bed showed beneficial effect in creating a reduction environment that prevented the oxidation or formation of oxygenated by-products. A positive synergistic effect between waste plastic and used cooking oil was also observed. The liquid oil obtained from this pyrolysis approach presented a low oxygen and nitrogen content, and free of sulphur, showing �cleaner� properties with respect to reduced char residues, sludge formation, corrosiveness, degradation of oil quality, and emission of undesired SOx and NOx during its utilization in combustion process. The techno-economic analysis indicated that this pyrolysis approach showed low production cost (USD 0.25/L compared to USD 0.523/L of diesel price in Malaysia). Our results demonstrate that microwave vacuum pyrolysis is potentially economically feasible and show promise as a sustainable approach for energy conversion in providing improved process features and production of cleaner liquid fuel. © 2019 Elsevier Ltd
publisher: Elsevier Ltd
date: 2019
type: Article
type: PeerReviewed
identifier:   Lam, S.S. and Wan Mahari, W.A. and Ok, Y.S. and Peng, W. and Chong, C.T. and Ma, N.L. and Chase, H.A. and Liew, Z. and Yusup, S. and Kwon, E.E. and Tsang, D.C.W.  (2019) Microwave vacuum pyrolysis of waste plastic and used cooking oil for simultaneous waste reduction and sustainable energy conversion: Recovery of cleaner liquid fuel and techno-economic analysis.  Renewable and Sustainable Energy Reviews, 115.   ISSN 13640321     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071594114&doi=10.1016%2fj.rser.2019.109359&partnerID=40&md5=0bbd89ffbf94f1345710d59d3f1119da
relation: 10.1016/j.rser.2019.109359
identifier: 10.1016/j.rser.2019.109359