YI Bo, XU Zheng, LEI Zhigang, et al. SOLVENTS FOR EXTRACTIVE DISTILLATION TO SEPARATE ETHANE/ETHYLENE[J]. CIESC Journal, 2001, (6).DOI:
萃取精馏分离乙烷/乙烯的溶剂
摘要
Abstract
The Solvents for extractive distillation to separate ethane/ethylene are studied and screened.Infinite relative volatility and infinite selectivity of 11 solvents with dipole moment from 0 to 11.36 are determined by gas stripping
which draws the conclusion that the selectivity of the solvent increases with its polarity.Two solvents
ACN and DMF
which have higher selectivity
are modified by adding water and salt
respectively.It is found that the effect of separation improves after modification