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时间:2022-02-04
《液化天然气、管道天然气与煤制天》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、第60卷增刊化工学报Vol.60Suppl.2009年12月CIESCJournalDecember2009檭殐檭檭檭檭檭檭殐檭檭综述与专论檭液化天然气、管道天然气与煤制天然气的比较分析檭殐檭檭檭檭檭檭殐檭王小伍1,华贲2(1华南理工大学理学院;2华南理工大学化工学院,广东广州510640)摘要:采用LCA方法对煤制天然气方案及其替代方案(俄罗斯进口管道天然气以及澳大利亚进口液化天然气)进行了评价,揭示了煤制天然气全生命周期各环节的环境效应。3种方案中,煤制天然气的CO2等环境排放最高。煤制天然气对原材料价格的承受能力低
2、下,随着褐煤价格的上涨,煤制天然气项目的经济性将受到较大的挑战。关键词:煤制天然气;液化天然气;管道天然气;环境排放;经济效益中图分类号:TE0文献标识码:A文章编号:04381157(2009)S103504犆狅犿狆犪狉犻狊狅狀犫犲狋狑犲犲狀犾犻狇狌犲犳犻犲犱狀犪狋狌狉犪犾犵犪狊,狆犻狆犲狀犪狋狌狉犪犾犵犪狊犪狀犱狊狌犫狊狋犻狋狌狋犲狀犪狋狌狉犪犾犵犪狊1,犎犝犃犅犲狀2犠犃犖犌犡犻犪狅狑狌(12犘犺狔狊犻犮狊犇犲狆犪狉狋犿犲狀狋,犛犮犺狅狅犾狅犳犛犮犻犲狀犮犲;犛犮犺狅狅犾狅犳犆犺犲犿犻犮犪犾犈狀犵犻狀犲犲狉犻
3、狀犵,犛狅狌狋犺犆犺犻狀犪犝狀犻狏犲狉狊犻狋狔狅犳犜犲犮犺狀狅犾狅犵狔,犌狌犪狀犵狕犺狅狌510640,犌狌犪狀犵犱狅狀犵,犆犺犻狀犪)犃犫狊狋狉犪犮狋:CoalbasedsubstitutenaturalgasindustryisadvocatedtodeveloponalargescalewiththeaimofreducinggassupplygapinChina.Comparedwithnaturalgascomingfromotherapproaches,willcoalbasedsubstitutenatur
4、algasshowenvironmentalandeconomicadvantages?Thereforelifecycleassessmentisadoptedhere.CoalbasedsubstitutenaturalgasiscomparedwithpipenaturalgasimportedfromRussiaandliquefiednaturalgasimportedfromAustraliaintermofenergyconsumption,environmentemissionandeconomicben
5、efit.Inthecalculation,therelateditemsingasconsumptionlinkareomitted.Includedindustrylinksareconstructionlink,mininglink,productionlinkandtransportationlink.Environmentemissionfromproductionlinkofsubstitutenaturalgasprojectisserious.AlthoughCO2producedfromcoaltran
6、sformprocesscanbecompressedandusedinoilfieldtoincreaseoilyield,substitutenaturalgasprojectstillshowsthehighestCO2andSO2emission.Asadmitted,coalminingregionshavealreadyinvolvedsevereecologydestroy.Itisnodoubtthatcoalbasedsubstitutenaturalgasindustrywhichalwaysdeve
7、lopsincoalminingregionswillsharpenenvironmentdeteriorationthere.Constructionlinkofpipenaturalgasprojectinvolvesthelargestamountofemissioninthewholeindustrychain.Sodoestheliquefiednaturalgasproject.ButRussiaandAustraliapossessexcellentenvironmentcapacity.Thesameam
8、ountofemissionwillproducelessdamageinRussiaandAustraliathaninChina.Thereforepipenaturalgasprojectandliquefiednaturalgasprojectshowadvantagesintermofenvironment
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