年产10万吨异丁烯法甲基丙烯酸甲酯工艺设计
关键词： 催化剂；直接氧化法；异丁烯；甲基丙烯酸甲酯
A Process Design for 100,000 Tons Isobutane Conversion to Methyl Methacrylate by Two-Stage
Design notes Methyl methacrylate (MMA) is a monomer that is used to polymerize the organic glass and the MBS resin. MMA is produced by the method of acetone-cyanohydrin(ACH) mainly in our country. The synthetic route is complex, the technical line is long, and the yield is low with high cost after many steps. Hydrocyanic acid (seriously poisonous) is used as raw material, the treatment of numerous waste acid is difficult . Furthermore, concentrated sulfuric acid consumed in this method corrodes equipments and pollutes the environment seriously. Considering all of these, it is greatly necessary to develop a new chemical technology of MMA. Recently, in many countries isobutyl is used as raw material to produce MMA and the method already is industrialized. This is the synthesis of Isobutene Conversion to Methyl Methacrylate by Two-Stage process design.
Keywords Catalyst;catalytic Direct Oxidative Esterification Process; Isobutane; Methyl Methacrylate
1 概述 5
1.1 甲基丙烯酸甲酯的生产工艺及设计意义 5
1.1.1 ACH法 5
1.1.2 改进的ACH法 6
1.1.3 乙烯法（α-MMA法) 6
1.1.4 丙烯法 6
1.1.5 异丁烯直接氧化法 7
1.2 甲基丙烯酸甲酯的性质 9
1.2.1 甲基丙烯酸甲酯 9
1.2.2 甲基丙烯酸甲酯的用途 9
1.2.3 甲基丙烯酸甲酯的质量指标 12
1.2.4 世界甲基丙烯酸甲酯的概况 13
1.2.5 我国MMA的生产发展历程 16
1.3 原料的性质 19
1.3.1 异丁烯 19
异丁烯基本理化性质见表1.2 19
1.3.2 进料空气 21
1.4 本设计的主要任务和目标 21
1.4.1 设计的任务 21
1.4.2 设计的目标 22
1.4.3 生产工艺条件 22
2 工艺流程设计 23
2.1 工艺路线及其基本原理 23
2.1.1 工艺路线 23
2.1.2 基本原理 24
2.2 主要化学反应 33
2.3.2 甲基丙烯酸分离 35
2.3.3 酯化 36
2.4 生产控制说明及控制项目 36
2.5 工业安全 37
3 工艺计算 40
3.1全车间物料衡算 40
3.1.1物质性质数据 40
3.1.2 设计依据 40
3.1.3 全车间的物料衡算 41
3.2热量衡算 46
3.2.1 所处理的物料带到设备中去的热量 46
3.2.2过程的热效应 47
3.2.3反应产物由设备中带出的热量 51
3.2.4设备向四周散失的热量 52
4 甲基丙烯酸甲酯列管式固定床反应器计算 53
4.1 反应器的选择 54
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