内蒙古科技大学年产量50万吨焦炉气合成甲醇的工艺初步设计学院：化学与化工学院团队：ZHPL2成员：张、李、黄、刘、庞摘要甲醇是一种应用广泛的基础化工原料和优良的清洁燃料，在世界基础有机化工原料中。
随着我国工业化进程和城镇化进程的推进，清洁能源受到国家扶持，对甲醇的需求将逐步增加，这对甲醇工业来说无疑是利好的。
甲醇生产合成气的制备可以用天然气、煤、石脑油或重油等含碳物质为原料。
焦炉煤气是煤经过高温干馏后副产物的可燃性气体，主要成分为H2和CH4，除此之外还有CO、CO2、N2和少量O2以及少部分的C2以上不饱和烃。
焦炉煤气是煤经过高温干馏后副产的可燃性气体，主要成分为H2和CH4，除此之外还有CO、CO2、N2和少量O2以及少部分的C2以上不饱和烃。
目前已经投入工业化使用的脱硫技术主要分为干法脱硫和湿法脱硫。
甲醇合成塔主要由外筒、内件和电加热器三部分组成。
内件事由催化剂筐和换热器两部分组成。
根据内件的催化剂筐和换热器的结构形式不同，甲醇内件分为若干类型。
为了综合利用资源，可以将焦炉煤气作为合成甲醇、合成氨和制氢及制LNG 的原料。
为了满足经济发展对甲醇的需求，开展了此50万吨/年的甲醇项目。
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，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。
甲醇的生产厂内可划分为生产区、生产辅助区、储罐区、行政区以及生活区。
根据建筑物的朝向，主导风向的影响（常年主导风向西北风），焦炉煤气制甲醇的生产过程中，有些环节会产生对环境的不利因素。
我们需要不断总结经验，在不改变合成甲醇工艺主线的前提下，对工艺中的一些设备、流程进行了改革，从而使工艺更完善，同时也减少了污染，以此实现提高产量和减少污染的目的。
关键词：焦炉气；甲醇；物料衡算；热衡算AbstractMethanol is a widely used basic chemical raw materials and fine clean fuel in the world, the basis of organic chemical raw materials. With the advance of industrializa-tion and urbanization process in China, clean energy by the state support, the demand for methanol will gradually increase, which the methanol industry is undoubtedly fa-vorable. Preparation of synthesis gas for methanol production can be natural gas, coal, naphtha or heavy oil as a raw material and other carbonaceous material.Coke oven gas is a byproduct of coal at high temperatures after the dry distillation of the combustible gas, mainly composed of H2 and CH4, in addition to CO, CO2, N2 and O2 as well as a small part of a small amount of C2 or more unsaturated hydrocarbons. Coke oven gas after the high temperature carbonization of coal-produced combustible gas, mainly composed of H2 and CH4, in addition to CO, CO2, N2 and O2 as well as a small part of a small amount of C2 or more unsaturated hydrocarbons. Has been put into industrial use of desulfurization desulfurization technology is mainly divided into dry and wet desulfurization. Methanol synthesis reactor is mainly composed of an outer tube, the inner member and the electric heater consists of three parts. Within a matter of two parts catalyst basket and a heat exchanger components. Depending on the form and structure of the catalyst basket within the heat exchanger elements, the inner parts of methanol is divided into several types. For comprehensive utilization of resources, coke oven gas can be as synthetic methanol, ammonia and hydrogen pro-duction and manufacturing LNG feedstock.In order to meet the economic development needs of methanol, to carry out this 500,000 tons of methanol project / year. The main content of the design process is carried out feasibility studies, material balance and heat balance and so on. This de-sign spirit of national conditions, advanced technology readily available, economical, environmentally friendly principle, the use of coal as raw material, the use of syn-thetic column tube uniform temperature methanol synthesis at low pressure; three towers of refined methanol distillation process.Methanol production plant can be divided into the production area, production sup-port areas, storage tank area, administrative and living areas. According toward the building, the dominant wind effects (perennial dominant wind northwest wind), the production of coke oven gas to methanol process, some aspects will have adverse en-vironmental factors. We need to constantly sum up experience, in methanol synthesis process without changing the main premise of the process of some of the equipment, the reform processes, thereby making the process better, but also reduce the pollution, in order to achieve increase production and reduce pollution purpose.Keywords: coke oven gas; methanol; material balance; thermal budget目录摘要 (I)Abstract (II)1项目的综述 (1)1.1建设意义 (1)1.2建设规模 (2)1.3技术方案甲醇合成工艺技术方案的选择 (2)1.4与企业的系统集成方案 (4)1.4.1选择的经济原则 (4)1.4.1.1产业政策 (4)1.4.1.2 需求的增加和成本递减原则 (4)1.4.2焦炉气生产甲醇情况分析 (5)1.4.3甲醇各种生产方式生产成本对比分析 (5)1.4.3.1煤制取甲醇 (5)1.4.3.2天然气制取甲醇 (6)1.4.3.3焦炉气制取甲醇 (6)1.5.设计的目的和意义 (6)2 工艺流程设计 (7)2.1工艺流程图 (7)2.2焦炉气的脱硫处理 (7)2.2.1粗脱硫处理 (7)2.2.2精脱硫处理 (10)2.3 合成甲醇工艺的选择 (12)2.3.1甲醇合成塔的选择 (12)2.3.2催化剂的选用 (14)2.4制取高纯度精甲醇的三塔精馏流程 (17)3 物料及热量平衡计算书 (26)3.1.1合成工段 (26)4 车间设备布置设计 (30)5主要污染及治理措施 (33)参考文献 (38)1项目的综述1.1建设意义甲醇是一种应用广泛的基础化工原料和优良的清洁燃料，在世界基础有机化工原料中。
甲醇消费仅次于乙烯、丙烯和苯，是一种大众有机化学品，由它可以加工成的有机化学品有100余种。
甲醇作为有机化工原料主要用来生产甲醛、甲基叔丁基醚(MTBE)、醋酸、甲酸甲酯、氯甲烷、甲胺、硫酸二甲酯、丙烯酸甲酯和二甲醚等有机化工产品。
目前，我国很多甲醇下游产品的需求已经超过产品甲醇的生产增长速度。
甲醇还是一种重要的有机溶剂，可以掺入汽油或者直接作为燃料，近年来随着甲醇汽车、二甲醚汽车的推广，甲醇已从单一的化工原料拓展为液体燃料，需求量成倍增长。