热等离子体裂解催化裂化油浆的淬冷过程分析Analysis of quenching process in pyrolysis of catalytic slurry oil via plasma
安航,华放,周贤,彭烁,程易
摘要(Abstract):
针对热等离子体裂解催化裂化油浆体系中淬冷过程的关键影响因素,介绍了耦合C1~C3烃类详细气相动力学和炭黑生成机理的University of Southern California(USC)扩展动力学,并对乙烷淬冷方案进行模拟,与在实验装置上进行的乙烷淬冷实验结果对照良好,表明USC扩展机理适用于该体系的动力学模拟。系统分析了淬冷过程中淬冷后温度、淬冷速率、淬冷氛围等关键因素对乙炔分解的影响,结果表明淬冷后温度控制在800 K,淬冷速率控制在1.2×10~5 K·s~(-1)以上可以保证乙炔的损失率在可接受的范围内,同时氢气的存在可以减少乙炔损失,从而为淬冷过程的调控提供了明确的指导。
关键词(KeyWords): 催化裂化油浆;热等离子体;热解;气相详细动力学;淬冷;过程控制
基金项目(Foundation): 国家重点研发计划(2017YFB0601901)
作者(Author): 安航,华放,周贤,彭烁,程易
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