醋酸乙烯生产工艺路线的原子经济分析  

Atomic-economic Analysis of Production Process Route of Vinyl Acetate

作　　者：汪志杰 陈小鹏[2] 王琳琳[2] 梁杰珍[2] 符开威 WANG Zhijie;CHEN Xiaopeng;WANG Linlin;SHI Xianwei;YA Jinyan(Guangxi Wanwei Biomass Technology Co.,Ltd.,Yizhou 546300,China;School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]广西皖维生物质科技有限公司,广西宜州546300 [2]广西大学化学化工学院,广西南宁530004

出　　处：《化工技术与开发》2023年第11期5-9,共5页Technology & Development of Chemical Industry

基　　金：国家自然科学基金项目(21878056)。

摘　　要：为了解决醋酸乙烯(VAC)不同生产工艺路线的原子利用率问题,本文采用原子经济方法,对VAC及其下游产品聚乙烯醇(PVA)和醋酸乙烯-乙烯共聚乳液(VAE)的生产工艺进行分析与比较。结果表明,采用电石乙炔法、天然气乙炔法和乙烯法生产VAC时,原子利用率分别为37.07%、50.00%和68.29%,排废量因子E分别为1.70、1.00和0.46。生物酒精脱水制乙烯是一条以可再生资源生产VAC的工艺路线,原子利用率为60.87%,排废量因子E为0.64。甲醇脱水制乙烯是一条以煤为原料生产VAC的工艺路线,原子利用率为43.75%,排废量因子E为1.29。以VAC为原料生产PVA的原子利用率为37.29%,排废量因子E为1.68。以VAC为原料生产VAE乳液的原子利用率为100%,排废量因子E为0(零排放),建议VAC企业多生产VAE乳液,少生产PVA产品。In order to solve the problem of atomic utilization of different production process routes for vinyl acetate(VAC),the atomic economy method was used to analyze and compare the production processes of VAC and its downstream products polyvinyl alcohol(PVA)and vinyl acetate-ethylene copolymer emulsion(VAE).The results showed that the atomic utilization rates for the production of VAC from calcium carbide acetylene,natural gas acetylene and ethylene were 37.07%,50.00%and 68.29%,respectively,and the emission factors E were 1.70,1.00 and 0.46,respectively.The production of ethylene from dehydration of bioethanol was a process route for the production of VAC from renewable resources,the atomic utilization rate was 60.87%and the emission factor E was 0.64.Methanol dehydration to ethylene was a process route to produce VAC from coal,the atomic utilization rate was 43.75%and the emission factor E was 1.29.The atomic utilization rate of PVA production from VAC was 37.29%and the emission factor E was 1.68.The atomic utilization rate of VAE emulsion production from VAC was 100%and the emission factor E was 0(zero emission),which was a process route to produce VAC from renewable resources.It was suggested that VAC enterprises produced more VAE emulsions and less PVA products.

关 键 词：醋酸乙烯(VAC) 聚乙烯醇(PVA) 醋酸乙烯-乙烯共聚乳液(VAE) 原子经济 原子利用率 

分 类 号：TQ325.5[化学工程—合成树脂塑料工业]