Thermodynamics fundamentals and energy efficiency for the separation and high-valued utilization of Fischer-Tropsch heavy oil
Zongchao Liu1
Hong Li1
Suli Liu2
Jiuzhou Chen2
Zisheng Zhang3
Xingang Li1
Angui Zhang2
Wei Yuan2
Xin Gao4
1.School of Chemical Engineering and Technology,National Engineering Research Center of Distillation Technology,Tianjin University,Tianjin 300072,China2.Ningxia Coal Industry Group Co.Ltd.,CHN ENERGY,Yinchuan 750011,China3.School of Chemical Engineering and Technology,National Engineering Research Center of Distillation Technology,Tianjin University,Tianjin 300072,China;Department of Chemical and Biological Engineering,University of Ottawa,Ottawa K1N 6N5,Canada4.School of Chemical Engineering and Technology,National Engineering Research Center of Distillation Technology,Tianjin University,Tianjin 300072,China;Haihe Laboratory of Sustainable Chemical Transformations,Tianjin 300192,China
摘要：The development trend of Fischer-Tropsch(F-T)technology is to develop high value-added products.The separation of linear α-olefins with low cost is an effective method.Nevertheless,the lack of thermodynamic data and the huge energy consumption are the two main problems restricting the development of the separation process.The thermodynamic data of the key components(1-dodecene and n-dodecane)in the F-T product were measured.The Wilson binary interaction parameters of the key components were obtained.Next,one traditional distillation column sequence and two dividing wall column(DWC)sequences were designed to separate the F-T heavy oil to obtain narrow fractions with different carbon numbers.Then,the obtained fractions of C10 and C12 were simulated to obtain 1-decene and 1-dodecene,respectively.There was a traditional distillation and a differential pressure thermal coupling distillation process.When separating 95.0％purity 1-decene and 1-octene,the direct DWC process and differential pressure thermal coupled distillation are an excellent combination,which can reduce the energy by 33.1％(i.e.,11,286 kW)and total annual cost by 15.9％(i.e.,3.96x 106$)compared with traditional distillation.
机标关键词：thermodynamicsseparationenergyheavyefficiencyfischer-tropschfundamentalshigh-valued
论文发表日期：2022-08-28
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：12( 59-70 )
英文信息