基于子系统规模调配的烯烃生产过程模拟与优化Simulation and optimization of olefin production processes based on subsystem scale allocation
李文静,张桥
摘要(Abstract):
针对单个烯烃生产系统节能潜力有限的问题,提出基于烯烃生产子系统规模调配的方法,构建混合整数非线性规划(MINLP)优化模型。以单位产量1 t·h~(-1)为基准规模,当丙烷脱氢和乙烷裂解的规模系数分别为50.0和89.4时(即产量分别为50.0 t·h~(-1)和89.4 t·h~(-1)),系统的能量回收率达到最大,为82.6%。与两者独立子系统相比,公用工程负荷减少502.7 MW,对应的中低压蒸气消耗量减少544.9 t·h~(-1),电能减少0.5 MW,碳排放量减少0.5 t·h~(-1),节能减排的效果非常显著。结果表明,多个系统间能量交互可以有效提高能量回收率,且最优的规模系数使系统整体能量回收率达到最大。
关键词(KeyWords): 烯烃;混合整数非线性规划(MINLP);能量回收率;规模调配;节能减排
基金项目(Foundation):
作者(Author): 李文静,张桥
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