维普资讯 http://www.cqvip.com 162 化学反应工程与工艺 2008年4月 Synthesis over Pd—Au/SiOz and Pd/SiOz Catalysts.Journal of Catalysis,2005,232(2):467~475 9 Perego C,Peratello S Expermental Methods in Catalytic Kinetics.Catalysis Today,1999,52:133~145 1O周爱月.化工数学.化学工业出版社,2000.195 ̄240 Synthesis of Vinyl Acetate from Acetylene and Acetic Acid over Zn(Ac)2/c Li Hansheng。Liu Wei。 An Xin2 Wang Jinfu (1.School of Chemical Engineering and the Environment,Beijing Institute of Technology,Bering 10008i,China; 2.Department of Chemical Engineering,Tsinghua University,Beijing 100084,China) Abstract: Effects of reaction temperature,molar ratio of acetylene to acetic acid and space velocity on synthesis of vinyl acetate from acetylene and acetic acid over industrial Zn(AC)2/c catalyst were investigated in a minisize fixed bed reactor at normal pressure.The experimental results indicated that the internal and external diffusion resistances were eliminated and the catalyst had good thermal stability and longevity under the conditions of normal pressure,catalyst particles size 0.177—0.250 mm, molar ratio of acetylene to acetic acid 2.4—6.4。space velocity 900—5 000 h一 and reaction temperature 150--225℃.The intrinsic kinetic model was established for synthesis of vinyl acetate and the simulation results showed that the multiple correlation coefficient was 0.962 1,reaction order of acetylene was 1.0, reaction order of acetic acid was一0.5,frequency factor was 0.152 5(mol ̄・。・ml )/(kg・s)and activate energy was 8.767 3×10 J/mo1. Key words: acetylene;acetic acid;vinyl acetate;intrinsic kinetics Lucite公司拟第四季度启动首套乙烯法MMA生产装置 Lucite公司拟于2008年第四季度启动位于新加坡的全球首套以乙烯为原料的甲基 丙烯酸甲酯(MMA)生产装置。这套设计产能为12万t/a的MMA装置是全球首套使 用ICI公司专利技术的装置,以乙烯、一氧化碳和甲醇为原料。该装置机械部分将于 9月份完工,预计在第四季度会投产。据Lucite称,该装置将逐步提高开工率,第四季 度的产量可能为1.5~2万t。据悉,ICI公司的MMA新工艺技术可以大幅降低生产成 本,不过由于这是全球首次商业化应用这种新工艺,具体的数据还有待开工后进一步证 实。目前,其他的MMA生产商主要是使用甲基叔丁基醚(MTBE)或丙酮与氰氢酸作 为碌料c 李雅丽摘自英ICIS,2008—4—1