資源描述：
《(畢業(yè)論文)甲醇合成工段設(shè)計(jì)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在工程資料-天天文庫(kù)。
1、目前生產(chǎn)甲醇的主要原料是煤和天然氣，甲醇的生產(chǎn)工藝過(guò)程分為合成氣(氫和一氧化碳)的制造、甲醇的合成和精制3部分。用煤和焦炭制甲醇的工藝路線包括燃料的氣化、氣體的脫硫、變換、脫碳及甲醇合成與精制。木文設(shè)計(jì)了甲醇的合成和精憎工藝，設(shè)計(jì)中采用低壓法中的I.C.I法合成甲醇，采用雙效法三塔粗甲醇精憎工藝來(lái)對(duì)粗甲醇進(jìn)行精錨。低壓甲醇合成工藝流程是指采用低溫、低壓和高活性銅基催化劑，在5MPa左右壓力下，由合成氣合成甲醇的工藝流程。本設(shè)計(jì)采用ICI法合成甲醇，催化劑為銅基催化劑，其活性組分是Cu和ZnO,該催化劑的活性高。合成反應(yīng)的溫度較低，在(2
2、30-270°C),操作壓力較低(5-10MPa),廣泛用于甲醇合成。本設(shè)計(jì)中精憎工藝采用雙效法三塔粗甲醇精憎工藝，與雙塔精憎相比三塔精憎可以提高甲醇的質(zhì)量和收率，并且可以降低蒸汽消耗。木設(shè)計(jì)屮計(jì)算了甲醇生產(chǎn)過(guò)程屮的合成工段和精錨工段，對(duì)其進(jìn)行了物料衡算和熱量衡算，并對(duì)甲醇水冷器進(jìn)行了設(shè)備選型計(jì)算。在設(shè)計(jì)過(guò)程中繪制了合成和精傭工段的設(shè)備一覽表和物料流程圖，并繪制了合成工段的PID圖、設(shè)備布置圖和管道布置圖。關(guān)鍵詞：甲醇I.C.I低壓法雙效法三塔粗甲醇精憎AbstractCurrentlythemainrawmaterialproduct
3、ionofmethanolwasfromcoalandnaturalgas,methanolproductionprocesswasdistinguishedintothreeparts,suchastheproductionofsynthesisgas(hydrogenandcarbonmonoxide),synthesisandrefiningofmethanol.inthemanufactureofmethanolsynthesisandcoalandcokemanufacturingprocessroutewereinclude
4、dmethanolfuelgasification,gasdesulfurization,transformation,decarburizationandmethanolsynthesisandpurification.Thisdesignformethanolsynthesisanddistillationprocess,thedesignoftheICIlowpressuremethanolsynthesis,double-followthreetowerstocrudemethanoldistillationofcrudemet
5、hanoldistillation.Low-pressuremethanolsynthesisprocesswastheuseoflow-temperature,lowpressureandhighactivitycopper-basedcatalyst,in5MPaaboutpressure,synthesisgasfromthemethanolsynthesisprocess.ThisdesignwasusedICImethanolsynthesiscatalystforthecopper-basedcatalyst;theacti
6、vecomponentisCuandZnO,thecatalystofhighactivity.Reactiontemperaturewaslower,at(230?270°C),lowoperatingpressure(5-10Mpa),whichwidelyusedinmethanolsynthesis.Thedesignofdoubledistillationprocessofcrudemethanoldistillationprocesstofollowthreetowers,distillationtowers,whichco
7、mparedwiththreetowersdistillationofmethanolcanimprovethequalityandyield,andreducesteamconsumption.Thedesigncalculationsformethanolsynthesissectionintheproductionprocessanddistillationsteps,wasthematerialbalanceandheatbalance,andmethanolandwatercoolersoftheequipmentsizing
8、.Inthedesignprocesstodrawthesynthesisanddistillationsectioninthelistofequipmentandmaterialflow,andwasma
