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1、2012届毕业设计说明书年产20万吨煤制甲醇生产工艺设计系、部:材料与化学工程系学生姓名:刘芳指导教师:王金银职称:教授专业:化学工程与工艺班级:化本0801班完成时间:2012年5月20currencydeposit,weprescribeapassonaregularbasis,qilucardaccountonaregularbasis),certificatebondsandsavingsbonds(electronic);3.notdrawnonabanksavingscertificate,certificatebon
2、dsapplyformortgageloans,acceptingonlythelender49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
3、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20currencydeposit,weprescribeapassonaregularbasis,qilucardaccountonaregularbasis),certificatebondsandsavingsbonds(electronic);3.notdrawnonabanksavingscertificate,certificatebondsapplyformortgageloans
4、,acceptingonlythelender49ABSTRACTMethanolisakindofveryimportantorganicchemicalrawmaterials,isalsoakindoffuel,isachemicalcarbonbasedproducts,inthenationaleconomyoccupiesveryimportantposition.Inrecentyears,withthedevelopmentofmethanolsubordinateproducts,especiallythepop
5、ularizationandapplicationofthemethanolfuel,methanoldemandincreases.Inordertomeettheneedsofeconomicdevelopment,methanol,carriedoutthe200000t/aofmethanolproject.Thedesignofthemaincontentisprocessdemonstration,andthematerialbalancecalculationsandheatbalancecalculations,e
6、tc.ThisdesignwiththesituationofChina,withadvancedtechnologyandareeasy,economy,environmentprotectionprinciple,thecoalforrawmaterials;UseofGSPgasificationprocessthegasification;NHDpurificationprocesssynthesisgaspurification;Lowvoltageofmeantemperaturetubesynthesistowerm
7、ethanolsynthesis;Threetowerdistillationprocessrefinedmethanol;Inadditiontostrictlycontrolthe"threewastes"emissions,makefulluseofwasteheat,reducetheenergyconsumptionandensuresafetyandhealthpersonnel.Keywords:methanolsynthesis;gasdistillation;processflow20currencydeposi
8、t,weprescribeapassonaregularbasis,qilucardaccountonaregularbasis),certificatebondsandsavingsbonds(electronic);3.notdrawnonab