年产60万吨煤制甲醇初步工艺设计方案.doc

设计总说明 甲醇是一种非常重要化工原料，工业应用非常广泛。国内甲醇的需求量逐年增大，针对我国贫油少气的能源现状，煤制甲醇生产工艺充分利用了我国煤炭资源丰富的优势，近年来在国内得到了广泛应用。 通过查阅资料及分析，本设计采用Lurgi低压法合成甲醇，以长焰煤煤作为原料，进行年产60万吨的煤制甲醇初步工艺设计，包括煤的选用、原料气制备工艺的设计、原料气的变换及净化工艺设计，合成工艺设计以及粗甲醇的精制工艺设计，并绘制了工艺流程图。同时，进行了物料衡算，对气化工段和合成塔进行了热量衡算。设计了甲醇合成塔和预精馏塔，并绘制出相应的设备简图。 关键词：德士古气化炉，鲁奇低压法，甲醇，设计 Design Description Methanol is a very important chemical raw material, which is widely used in industrial applications. The demand for the domestic methanol increased year by year, in view of the current situation of our country less oil and less gas in the energy, coal to methanol production process makes full use of the advantage of abundant coal resources in our country, in recent years in domestic has been widely used. By means of data and analysis, the design uses Lurgi low-pressure synthesis to produce methanol,taking long flame coal as raw material, designing preliminary process of the coal to methanol with the annual output of tons ,Including the selection of coal, raw material gas preparation process design, raw gas transformation and purification process design, synthesis process design and crude methanol refining process design, and drawing the process flow chart.At the same time, it finished the material balance calculation, the heat value calculation of the gasification process and the Synthetic tower .it completed the design of the methanol synthesis reactor and distillation distillation tower, finally drawed the corresponding diagram of equipment. Key word：Texaco gasifier, Lurgi low pressure, methanol, design 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc10804 1 绪论 PAGEREF _Toc10804 1 HYPERLINK \l _Toc15880 1.1甲醇简介 PAGEREF _Toc15880 1 HYPERLINK \l _Toc15365 1.1.1物化性质 PAGEREF _Toc15365 1 HYPERLINK \l _Toc19414 1.1.2包装及储运 PAGEREF _Toc19414 1 HYPERLINK \l _Toc7289 1.1.3毒性和防护 PAGEREF _Toc7289 2 HYPERLINK \l _Toc4604 1.1.4质量要求 PAGEREF _Toc4604 2 HYPERLINK \l _Toc1052 1.2甲醇的用途 PAGEREF _Toc1052 4 HYPERLINK \l _Toc23285 1.3甲醇合成工艺技术 PAGEREF _Toc23285 5 HYPERLINK