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1、480kt/a粗甲醇合成、精憎工段初步設計階段工藝設計摘要用天然氣制甲醇生產(chǎn)技術成熟、成木低，對我國能源結構調(diào)整、緩解石油供需矛盾具冇重要意義。促進甲醇下游產(chǎn)品的開發(fā)是拉動甲醇需求的關鍵環(huán)節(jié)，應該大力發(fā)展甲醇燃料和甲醇制烯坯項口，以天然氣制甲醇裝置的大型化是發(fā)展口標。甲醇是極為重要的有機化工原料和潔凈液體燃料，是碳一化學的基礎產(chǎn)品。甲醇化工是化淫工業(yè)的一個重要分子。固體原料煤炭、液體原料右腦油和渣油、氣體原料天然氣和油田氣或煤層氣等經(jīng)部分氧化法或蒸汽轉(zhuǎn)化法制得合成氣。合成氣的主要成分是一氧化碳和氫氣。一氧化碳
2、加氫可制得甲醇，這就構成了碳一化學的基木原料?，F(xiàn)在甲醇已成為新一代能源的重要起始原料，生產(chǎn)一?系列深度加工產(chǎn)品，并成為碳一化學的突破口。在世界能源緊缺以及清潔能源、環(huán)保需求的情況下，以天然氣為原料生產(chǎn)卬醇，卬醇就冇希望成為替代右油的清潔燃料、化工原料和二次能源。本次設計采用天然氣為原料，氣化得合成氣，再經(jīng)凈化壓縮，合成粗甲醇，再經(jīng)精憎工段精憎得到精甲醇。木次甲醇合成工段和精憎工段的設計參照與實際項目。關鍵詞：甲醇，合成，精憾480kt/athickmethanolsynthesis,distillations
3、ectioninthepreliminarydesignstageprocessdesignAuthor：HongZhaoTutor：YingZhangAbstractMethanolproductionfromnaturalgastechnologyismature,lowcost,onChina'senergystructureadjustment,easethecontradictionbetweenoilsupplyanddemandisimportant.Promotethedevelopmento
4、fdownstreamproductsofmethanoldemandisdrivingthekeytoadrunk,itshouldbetodevelopmethanolfiielandadrnnkolefinsprojectstolarge-scalecoal-basedmethanolplantisthedevelopmentgoals.Methanolisaveryimportantorganicchemicalrawmaterialsandcleanliquidfuels,isthebasicpro
5、ductsofOne-CarbonChemistry.Methanolisachemicalmoleculeisanimportantchemicalindustry.Solidrawmaterialscoal,naphthaandresiduefluidrawmaterials,rawmaterials,naturalgasandoilfieldgasorcoalbedmethanegasbypartialoxidationorsteamreformingpreparesyngas.Themaincompo
6、nentsofsynthesisgasofcarbonmonoxideandhydrogen.Methanolandcarbonmonoxidehydrogenationcanbeobtained,whichconstitutestheOne-CarbonChemistryrawmaterials.Methanolisnowanewgenerationofenergyhasbecomeanimportantstartingmaterials,producesarangeofdccp-proccssingpro
7、ducts,andOne-CarbonChemistrybreakthrough.Energyshortageintheworld,andcleanenergy,environmentalprotection,thecaseofdemand,withnaturalgasasrawmaterialstoproducemethanol,methanol,thereishopeforacleanfuelalternativetooil,chemicalrawmaterialsandsecondaryenergy.T
8、hedesignusednaturalgasasrawmaterials,gasificationtoobtainsynthesisgas.Thesynthesisgasisfurtherpurifiedandcompressed,andthenisusedtosynthesize.Atlast,crudemethanolviadistillationsectiontoberefinedtogetr
