甲醇合成装置的优化工艺研究与精细化操作应用

发布时间：2018-01-14 15:38

本文关键词：甲醇合成装置的优化工艺研究与精细化操作应用　出处：《华东理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：神华宁煤集团甲醇分公司的年产22.8万吨甲醇装置是宁煤集团的第一个煤化工项目,经过几年前后系统的运行实践和技改,合成系统日益趋于稳定运行,如何降低单耗和提高经济效益成为需要解决的问题。本论文以甲醇合成装置的生产工艺条件作为研究对象,依据设计工艺包给出的理论数据,对实际运行工艺条件的各参数进行分析,得出各工艺条件的经验值。论文通过对比不同工艺条件下的碳转化率、甲醇选择性和精甲醇产量,得出甲醇合成装置的最优工艺参数,即当合成塔入口温度在170℃～175℃、合成塔压力在5.4 MPa～5.8 MPa和合成塔入口氢碳比在4.95时,合成系统达到最优工况;同时分析了以甲醇选择性作为指标时各工艺条件对合成过程的敏感性分析,提出优先控制的工艺参数和调节措施,通过精细化操作,实现了甲醇合成系统单耗的降低和精甲醇产量的提高,为合成装置的稳定运行奠定理论基础。
[Abstract]:With an annual output of 228 thousand tons of methanol Shenhua Ningxia coal methanol branch is the first coal chemical project of Ningxia coal group, after a few years before and after the system operation practice and technical innovation, synthesis system tends to stable operation, consumption and improving economic benefits become a problem to be solved. In this paper, how to reduce the production conditions of methanol synthesis unit as the research object, based on the theory of data package design are analyzed, the parameters of the actual operation conditions, the process conditions of the experience value. This paper compares the different process conditions, the carbon conversion rate, selectivity of methanol and methanol yield, the optimum process parameters of the methanol synthesis unit, namely when the synthesis tower entrance temperature at 170 to 175 DEG C, synthesis tower pressure from 5.4 MPa to 5.8 MPa and synthesis tower entrance in 4.95 when the ratio of hydrogen to carbon, synthesis of the system to achieve optimal working conditions; the same When analyzed with methanol selectivity as the sensitivity analysis of the process conditions on the synthesis index, the process parameters of priority control and adjustment measures, through meticulous operation, implementation of the methanol synthesis system to reduce the consumption of methanol and improve the yield, which lays the theoretical foundation for the stable operation of synthesis equipment.

【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ223.121

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