摘要
甲醇制烯烃(MTO)是煤制烯烃工艺路线的核心技术,主要是将甲醇转化为乙烯和丙烯工业产品并作为上游化工生产加工的原料。在反应过程中有诸多因素如:温度、压力、水醇比、停留时间、积炭等都可以影响到甲醇向烯烃的转化和生成。运用热力学知识计算出不同温度下各个反应的ΔG_T、K~Θ、y_n(平衡摩尔分数),分析数据得出物质的转化率及收率达到最大时的最佳反应温度,并通过温度来调节乙烯与丙烯的产出比,尽最大可能性的扩大甲醇生成乙烯或丙烯产品的产量。
Methanol to olefins( MTO) is the core technology of coal-to-olefins process,which mainly converts methanol into ethylene and propylene industrial products and serves as raw material for upstream chemical production and processing. There are many factors in the reaction process such as temperature,pressure,water alcohol ratio,residence time,coke,etc. It can affect the conversion and generation of methanol to olefin. The ΔG_T,K~Θ and y_n( equilibrium mole fraction) of each reaction at different temperatures were calculated by using the thermodynamic knowledge. The conversion of the material and the optimum reaction temperature at the maximum yield were obtained from the analysis data. At the same time,the temperature was used to adjust the reaction temperature of ethylene and the output ratio of propylene,so as to expand the yield of methanol to ethylene or propylene products as far as possible.
出处
《广州化工》
CAS
2018年第1期40-44,共5页
GuangZhou Chemical Industry
关键词
甲醇
温度
热力学
选择性
methanol
temperature
thermodynamics
selectivity
