Microwave-assisted pyrolysis of plastics for aviation oil production:energy and economic analyses  

作　　者：Sichen Fan Yifan Liu Yaning Zhang Wenke Zhao Chunbao Xu 

机构地区：[1]School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China [2]School of Energy and Environment,City University of Hong Kong,Hong Kong SAR,China

出　　处：《Frontiers of Chemical Science and Engineering》2024年第7期141-153,共13页化学科学与工程前沿（英文版）

基　　金：Financial support was provided by the National Natural Science Foundation of China(Grant No.52076049);Heilongjiang Province“Double First-class”Discipline Collaborative Innovation Achievement Project(Grant No.LJGXCG2023-080);Heilongjiang Provincial Key R&D Program(Grant No.2023ZX02C05);Heilongjiang Provincial Key R&D Program“Unveiling the Leader”Project(Grant No.2023ZXJ02C04).

摘　　要：Microwave-assisted pyrolysis is an effective method for recycling plastic wastes into oils that can be used for aviation fuels. In this study, energy and economic analyses of aviation oil production from microwave-assisted pyrolysis of polystyrene were performed. The total energy efficiency, recovered energy efficiency, unitary cost, unitary energy economic cost, relative cost difference, and energy economic factor were detailed. And the effects of microwave power, pyrolysis temperature, microwave absorbent loading, and microwave absorbent type on these parameters were covered. It was found that pyrolysis temperature has the most significant effect on the unitary cost and unitary energy economic cost of aviation oil, and-microwave absorbent type has a significant influence on energy economic factor during the whole microwave-assisted pyrolysis process. The optimum reaction conditions at the tonnage system for pyrolysis of 1 t polystyrene were microwave power of 650 W, pyrolysis temperature of 460 ℃, and silicon carbide (microwave absorbent) at a loading of 2 t (twice than feedstock loading). At these optimal conditions, the total energy efficiency, recovered energy efficiency, unitary cost, unitary energy economic cost, relative cost difference, and energy economic factor were 62.78%, 96.51%, 3.21 × 10^(4) yuan·t^(-1), 779 yuan·GJ^(-1), 1.49, and 71.02%, respectively.

关 键 词：energy analysis economic analysis microwave-assisted pyrolysis POLYSTYRENE aviation oil 

分 类 号：X784[环境科学与工程—环境工程] V312[航空宇航科学与技术—航空宇航推进理论与工程]