前言:天然气是世界上最主要的能源之一,我国天然气正处于大规模开发的前夕。 原料天然气中一般均含有硫化氢、有机硫(硫醇类)等杂质.硫的存在造成合成氨工艺中催化剂中毒,因此需将含硫天然气中的硫化氢、有机硫等硫化物脱除,使产品天然气的硫化氢和有机硫含量符合有关技术指标要求,满足生产需要.在天然气化工迅猛发展的今天,天然气脱硫方法也层出不穷.在传统一已醇胺湿法脱硫,氧化锌干法脱硫的基础上,出现了常温氧化铁脱硫,活性炭干法脱硫,分子筛脱硫,DDS生化湿法脱硫等新技术.尽管脱硫新技术的发展,不外乎干法,湿法脱硫.如何根据天然气中硫的含量选择合适的脱硫工艺,对减少装置维护费用,降低生产成本有着重要作用.脱硫的方法很多,本装置选用的流程是湿法MEA溶液洗涤粗脱,串钴钼加氢转化及ZnO精脱硫的办法。本文试着就干法,湿法脱硫的特点进行比较,结合我车间脱硫装置运行情况进行分析总结,尝试找出比较合理的脱硫运行方式,脱硫方法.并对目前出现的一些脱硫新技术作了简要介绍.
Naturalgasistheoneofmostmajorenergyonworld,Theevewhenthenaturalgasofourcountryisbeinginlarge-scaledevelopment。 Inthenaturalgasofrawmaterialnormally,containvulcanizationhydrogenandorganicsulphur(sulphurpurekind)waitingforimpurity,Theexistenceofsulphurcausesthecatalystpoisoninginsyntheticammoniatec...全部
Naturalgasistheoneofmostmajorenergyonworld,Theevewhenthenaturalgasofourcountryisbeinginlarge-scaledevelopment。
Inthenaturalgasofrawmaterialnormally,containvulcanizationhydrogenandorganicsulphur(sulphurpurekind)waitingforimpurity,Theexistenceofsulphurcausesthecatalystpoisoninginsyntheticammoniatechnology,Thereforeneed, lcanizationthinginsulphurnaturalgas,takeofftoexclude, Make organic sulfur content and the vulcanization hydrogen of the natural gas of raw material accord with relevant technical index requirement , satisfy production needs,Today of the chemical swift development of natural gas the desulphurization method of natural gas also emerge endlessly , In traditional a ethanol amine the foundation of wet desulphurization and the dry law desulphurization of zinc oxide on, have arisen the desulphurization of normal temperature of ferric oxide, the dry lawdesulphurizationofactivatedcarbonandmembersiftdesulphurization, oughthedevelopmentofdesulphurizationnewtechnology,notbesidesHudolaw,wetdesulphurization。
howtoselectsuitabledesulphurizationtechnologyaccordingtonaturalgasinthecontentofsulphur,installmaintenancefordecreasingcost, emethodofdesulphurizationmany,thisinstallationschooseprocessiswetMEAsolutionwashthicktakeoff,stringGuMuh eexaminationofthispapercompareforthecharacteristicofdrylawandwetdesulphurization,combinemyworkshopdesulphurizationinstallationoperationconditionanalysesummary,tryfindoutmorereasonabledesulphurizationrunmode,desulphurizationmethod。
havemadebriefintroductionforsomedesulphurizationnewtechnologiesofpresentappearance。收起