1年产 20 万吨煤制甲醇生产工艺初步设 计摘要甲醇是一种极重要的有机化工原料，也是一种燃料，是碳一化学的基础产品，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20 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、精馏。年产 20 万吨煤制甲醇生产工艺初步设 计2abstractMethanolisakindofextremelyimportantorganicindustrialchemicals,andakindoffueltoo,itisthebasicproductsofthechemistryofcarbonone.Itisveryimportantinnationaleconomy.Inrecentyears,withthedevelopmentoftheproductsthataremadefrommethanol,especiallythepopularizationandapplicationofthefuelofmethanol,thedemandforthemethanolrisesbyalargemargin.Inordertosatisfyeconomicdevelopment'sdemandsformethanol,havelaunchedthemethanolprojectofthis200,000t/a.Maincontentthatdesigntocarryoncraftprove,suppliesweighingapparatusregardaswithheatweighingapparatuschargingetcTheprincipleofthedesigninlinewithaccordingwiththenationalconditions,technologicallyadvancedandapt,economy,protectingenvironment,.Coalsisadoptedasrawmaterials;thecraftofGSPgasificationisutilizedtomakewatergas;thecraftofNHDpurificationisutilizedtopurifythesyngas;tubularaverage-temperaturereactionisutilizedtosynthesizemethanolkeepinginlowpressure;therectificationcraftofthreetowersisutilizedtorectifymethanol;Inadditioncontrolthedischargeofthethreewastesstrictly,fullyutilizeusedheat,reduceenergyconsumption,guaranteethepersonalsecurityandhygiene.Keyword:Methanol,synthesis,rectification.年产 20 万吨煤制甲醇生产工艺初步设 计3目录1 总论…………………………………………………………………………11.1 概述………………………………………………………………………11.2 设计的目的和意义……………...
