化工进展2017，Vol.36Issue(1)：53-58,6.DOI:10.16085/j.issn.1000-6613.2017.01.007
共沸精馏脱高温费托合成C8馏分中的含氧化合物
Azeotropic distillation to remove the oxygenates from high-temperature Fisher-Tropsch C8-cut
摘要
Abstract
After the components of high-temperature Fisher-Tropsch C8-cut was determined by chromatography-mass spectrum,the azeotropic distillation was carried out to remove the oxygenates from high-temperature Fisher-Tropsch C8-cut. PRO-Ⅱ was applied to simulate the distillation process by NRTL thermodynamic method. The separation process of the azeotropic distillation with ethanol/water solution as solvent was established. The effect of water content, theoretical stage number and feed stage number on the separation effect was investigated so as to get the best operational parameter for azeotropic distillation tower. Then,a bench-scale distillation column was used to verify the simulation for value by high-temperature Fisher-Tropsch C8-cut. The result showed that the oxygenates at the top was not detected and the mass fraction of the 1-octene at the bottom is less than 0.1%.The best operational parameters were as follows: water content in solvent was about 14% with the theoretical stage number of 30,the feed stage number of 17 and the solvent ratio of 1.2∶1.The experimental data matched well with those of the simulation.关键词
费托合成/共沸精馏/含氧化合物/C8馏分/模拟Key words
Fischer-Tropsch synthesis/azeotropic distillation/oxygenates/C8-cut/simulation分类
化学化工引用本文复制引用
杨正伟,孙启文..共沸精馏脱高温费托合成C8馏分中的含氧化合物[J].化工进展,2017,36(1):53-58,6.基金项目
国家高技术研究发展计划项目（2011AA05A204）。 （）
