年产18万吨煤制甲醇生产工艺设计+车间布置设计图.docVIP

年产18万吨煤制甲醇生产工艺设计+车间布置设计图 摘要：甲醇是一种极重要的有机化工原料，也是一种燃料，是碳化学的基础产品，在国民经济中占有十分重要的地位。近年来，随着甲醇下属产品的开发，特别是甲醇燃料的推广应用，甲醇的需求大幅度上升。为了满足经济发展对甲醇的需求，开展了此18万t/a的甲醇项目。设计的主要内容是进行工艺论证，物料衡算和热量衡算等。本设计本着符合国情、技术先进和易得、经济、环保的原则，采用煤炭为原料；利用GSP气化工艺造气；NHD净化工艺净化合成气体；低压下利用列管均温合成塔合成甲醇；三塔精馏工艺精制甲醇；此外严格控制三废的排放，充分利用废热，降低能耗，保证人员安全与卫生。关键词：甲醇合成；气体精馏；工艺流程8635 Annual design production process 180000 tons of coal methanol Abstract ：Methanol is a kind of very important organic chemical raw materials, is also a kind of fuel, is a chemical carbon based products, in the national economy occupies very important position. In recent years, with the development of methanol subordinate products, especially the popularization and application of the methanol fuel, methanol demand increases. In order to meet the needs of economic development, methanol, carried out the 180000 t/a of methanol project. The design of the main content is process demonstration, and the material balance calculations and heat balance calculations, etc. This design with the situation of China, with advanced technology and are easy, economy, environment protection principle, the coal for raw materials; Use of GSP gasification process the gasification; NHD purification process synthesis gas purification; Low voltage of mean temperature tube synthesis tower methanol synthesis; Three tower distillation process refined methanol; In addition to strictly control the "three wastes" emissions, make full use of waste heat, reduce the energy consumption and ensure safety and health personnel. 4.2能量衡算 27 4.2.1煤发电量27 4.2.2合成工段28 5主要设备的工艺计算及选型 32 5.1甲醇合成塔的设计 32 5.2水冷器的工艺设计 34 5.3循环压缩机的选型 36 5.4甲醇合成厂的主要设备一览表 36 6三废处理 38 6.1甲醇生产对环境的污染 38 6.1.1废气38 6.1.2废水38 6.1.3废渣38 6.2 处理方法 38 6.2.1废气处理38 6 2.2废水处理38 6.2.3废渣处理39 7工艺流程图 40 8车间布置设计图 41 8.1生产车间平面布置图 41 8.2生产车间立面布置图 41 设计结果评价 42 致谢 43 参考1总论 1.1 概述 1.1.1甲醇性质 甲醇俗称木醇、木精，英文名为methanol，分子式CH3OH。是一种无色、透明、易燃、有毒、易挥发的液体，略带酒精味；分子量32.04，相对密度0.7914(d420)，蒸气相对密度1.11(空气=1)，熔点-97.8℃，沸点64.7℃，闪点（开杯）16℃，自燃点473℃，折射率