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建立了千吨级的渗透汽化苯脱水中试装置 ,并成功地完成了中试试验研究 .结果表明该装置可将苯中的水含量从质量分数为 0 0 6%脱至 0 0 0 3%以下 ,对膜后真空度的要求不很苛刻 (～ 2 0 0 0Pa) .初步的经济分析表明 ,渗透汽化脱除苯中的微量水比恒沸精馏法节能 2 / 3.试验结果为万吨级渗透汽化苯脱水装置的设计提供了基础数据 .
A kilotonized pilot plant for pervaporation of pervaporation benzene was established and successfully completed the pilot test.The results show that the device can remove the water content of benzene from 0 0 6% to 0 0 0 3% In the following, the post-membrane vacuum requirement is not very harsh (~ 2000Pa) .A preliminary economic analysis shows that pervaporation of trace amounts of benzene in benzene can save 2/3 more than azeotropic distillation and the test result is 10,000 The design of a tonne pervaporation benzene dehydration unit provides the basic data.