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设计说明书：甲醇是一种非常重要的有机化工原料，是碳一化学的基础产品，，也是一种新型燃料，在我国经济中占有很重要的地位。近年来，随着甲醇下游产品的开发，特别是甲醇燃料的推广应用，市场上对甲醇的需求大幅度上升。为了满足国民经济发展对甲醇的需求，开展了此15万t/a的甲醇合成项目。本设计的主要内容是进行工艺论证，物料衡算和热量衡算等。此设计本着符合我国国情、先进技术的采用以及环保经济节约的原则，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；此外还严格控制了三废的排放，充分利用废热，降低能源消耗，保证操作人员的人身安全与个人卫生。29178
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毕业论文关键词：甲醇、合成、精馏。
Annyal output of 150,000 tons of methanol (from coal ) process design
Instruction manual：
Methanol is a kind of quietly important organic industrial chemicals, and a kind of alternative fuel too, it is the basic products of the chemistry of carbon one. It is extremely important in national economy. In recent years, along with the development of the products that are made from methanol, especially the popularization and application of the fuel of methanol, the demand for the methanol have raised by a large margin. In order to keep up with economic development's demands for methanol, here we have launched the methanol project of this 200,000t/a. Main content that design to carry on craft prove, supplies weighing apparatus regard as with heat weighing apparatus charging etc The principle of the design in line with according with the national economical conditions, technologically advanced and apt, economy, environment-friendly,. Coals is adopted as raw materials; the craft of GSP gasification is utilized to make water gas; the craft of NHD purification is utilized to purify the synthesis gases; tubular average -temperature reaction is utilized to synthesize methanol keeping in a low pressure; the rectification craft of three towers is utilized to rectify methanol; Besides, we strictly control the discharge of the three wastes, fully utilize used heat, reduce energy consumption, and make sure the personal security and hygiene of the workers.
Keyword: Methanol, synthesis, rectification.
目 录
1总论1
1.1 概述1
1.1.1 甲醇的性质1
1.1.2 甲醇的实际应用1
1.1.3 甲醇的来源1
1.1.4 甲醇国内外生产工艺发展1
1.2甲醇生产设计目的和意义2
1.3甲醇生产设计的依据2
1.3.1 设计选题2
1.3.2 基础参照资料2
1.4设计指导思想2
1.5设计的内容，主要装置及实际建设规模2
1.5.1 设计的内容2
1.5.2 生产和辅助车间设置3
1.5.3 实际建设规模3
1.6原料煤规格3
1.7产品质量标准3
2工艺论证5
2.1 煤气化路线的设计5
2.1.1 移动床气化技术简介5
2.1.2 流化床气化技术简介5
2.1.3气化床气化技术简介5
2.1.4 GSP气化技术简介6
2.2 净化工艺方案设计6
2.2.1. 原料气脱硫脱碳工序7
2.2.2 NHD脱硫脱碳简介7
2.2.3 NHD溶剂吸收机理8
2.3甲醇合成工艺的选择8
2.3.1 高压法8
2.3.2 中压法9
2.3.3低压法9
2.3.4 甲醇合成塔类型9
2.4甲醇的精馏9
3工艺流程11
3.1 GSP气化工序11
3.2净化工艺流程11
3.2.1 变换工序11
3.2.2 NHD脱硫脱碳12
3.3甲醇合成工序12
3.4甲醇精馏工序12
4物料和热量衡算13