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1年产3万吨甲醛生产装置工艺设计摘要：本设计为年产3万吨37.2%甲醛水溶液的生产工艺初步设计，本设计采用银催化法工艺，根据设计要求对工艺流程进行了选择与论证，对整个装置进行了物料与能量的衡算，对主要设备和管道进行了设计及选型，同时对本装置的安全生产与“三废”治理作了相关讨论并进行经济的初步核算。本设计配有设计说明书一本，附图4张。说明书包括1：总论；2：工艺流程的选择及论证；3：年产3万吨37.2%甲醛水溶液工艺计算；4：非标准设备的计算及定性设备的选型；5：工艺管道计算；6：安全以及“三废”治理；7：技术经济初步核算。图纸包括：1带控制点的工艺管道及工艺流程图；2氧化器装配图；3装置平面图；4装置立面图。关键词：甲醛；甲醇；氧化；工艺；电解银ThemanufacturingprocessofFormaldehyde30000tonsperyearSpeciality:chemicalengineeringandtechnologydesigner:XieQiangdirector:LuoDaoChengAbstract:Thedesignisprimaryforthemanufacturingprocessofformaldehyde30000tonsperyear,andadoptsAgascatalystAccordingtothedesign,thecraftproductionwayofformaldehydewasselectedandthetechnologywasinvestiged.Themainequipmentsandpipesweredesignedorselected.Atthesanetime,safelyproducinganddealingwith”threewaste“werearguedandtechnologyeconomicwasoriginallyestimated.Thedesignconsistsofaninstructionbookandaseriesofdiagram.Theinstructionbookincludes:1.Introduction.2.Choiceanddemonstrationofthetechnologicalprocess.3.30000tonsperyear37.2%formaldehydecraftsforproductionweredesignde.4.Itisnotaselectingtypeoftheequipmentofcalculationandfinalizingthedesignofthestandarddevice.5.Thecraftpipelinecalculating.6.Securityandabatementof”threewaste”.7.Economicinitialestimateoftechnoligy.Thediagraminclude:1.Thepipelineofthedeviceandprocessflowsheetwithcontrolledpiot.2.Assemblagechartoftheoxidator.3.Planefigureofthedevice.4.Theblueprintsoffactory.Keywords:formaldehyde;Methanol;Oxidation;Technology;ElectrolysisSilver1目录前言..................................................................................................................................................11绪论..............................................................................................................................................11.1我国甲醛工业的发展过程................................................................................................11.1.1起步阶段.................................................................................................................11.1.2发展阶段.................................................................................................................11.1.3快速增长阶段.........................................................................................................11.2我国甲醛工业的现状........................................................................................................21.2.1生产工艺.................................................................................................................21.2.2生产能力和产量.....................................................................................................21.2.3技术指标.................................................................................................................21.3影响我国甲醛价格的主要因素.......................................................................................31.3.1生产成本.................................................................................................................31.3.2下游需求状况.........................................................................................................41.3.3地区差异.................................................................................................................41.4产品说明............................................................................................................................41.4.1产品名称.................................................................................................................41.4.2产品性质.................................................................................................................41.5产品用途............................................................................................................................61.6原材料说明........................................................................................................................61.7甲醛工业的发展趋势........................................................................................................61.7.1改进催化剂的性能.................................................................................................61.7.2高浓度甲醛工艺发展趋势.....................................................................................61.7.3设备集约化.............................................................................................................71.7.4规模大型化.............................................................................................................71.7.5产品简介.................................................................................................................71.8甲醛的主要技术指标........................................................................................................72合成方法及生产技术比较..........................................................................................................82.1甲醛的合成方法................................................................................................................82.1.1银催化剂法............................................................................................................82.1.2铁钼催化剂法.