烯烃/链烷烃分离工艺进展

Recent developments of olefin/paraffin separation technology

当前开发的烯烃 /链烷烃分离技术有物理吸收法、化学吸收法、吸收分离法、萃取蒸馏法及膜分离法。其中最有发展前途的是利用π 配合作用的化学吸收法 ,现已有工业化装置。将蒸馏与吸附相结合的复合分离技术 ,是烯烃 /链烷烃分离技术的发展方向之一。

A number of olefin/paraffin separation technologies have been developed today. They include physical absorption, chemical absorption, absorption separation, extractive distillation and membrane separation. The most promising appears to chemical absorption by π complexation. There are already some commercialized plants. One of the developing trends for olefin/paraffin separation is the composite separation technology combining distillation with absorption.