Synergistic sorbent separation for one-step ethylene purification from a four-component mixture

被引：474

作者：

Chen, Kai-Jie ^{[1
]}

Madden, David G. ^{[2
,3
,5
]}

Mukherjee, Soumya ^{[2
,3
]}

Pham, Tony ^{[4
,6
]}

Forrest, Katherine A. ^{[4
]}

Kumar, Amrit ^{[2
,3
]}

Space, Brian ^{[4
]}

Kong, Jie ^{[1
]}

Zhang, Qiu-Yu ^{[1
]}

Zaworotko, Michael J. ^{[2
,3
]}

机构：

[1] Northwestern Polytech Univ, Sch Nat & Appl Sci, Dept Appl Chem, Xian 710072, Shaanxi, Peoples R China

[2] Univ Limerick, Bernal Inst, Limerick V94 T9PX, Ireland

[3] Univ Limerick, Dept Chem Sci, Limerick V94 T9PX, Ireland

[4] Univ S Florida, Dept Chem, Tampa, FL 33620 USA

[5] Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge CB3 0AS, England

[6] Univ Tampa, Dept Chem Biochem & Phys, Tampa, FL 33606 USA

来源：

SCIENCE | 2019年 / 366卷 / 6462期

基金：

爱尔兰科学基金会; 中国国家自然科学基金;

关键词：

METAL-ORGANIC FRAMEWORK; EQUATION-OF-STATE; FORCE-FIELD; CO2; ADSORPTION; THERMODYNAMICS; HYDROCARBONS; POTENTIALS; SORPTION; BINDING;

D O I：

10.1126/science.aax8666

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Purification of ethylene (C2H4), the largest-volume product of the chemical industry, currently involves energy-intensive processes such as chemisorption (CO2 removal), catalytic hydrogenation (C2H2 conversion), and cryogenic distillation (C2H6 separation). Although advanced physisorbent or membrane separation could lower the energy input, one-step removal of multiple impurities, especially trace impurities, has not been feasible. We introduce a synergistic sorbent separation method for the one-step production of polymer-grade C2H4 from ternary (C2H2/C2H6/C2H4) or quaternary (CO2/C2H2/C2H6/C2H4) gas mixtures with a series of physisorbents in a packed-bed geometry. We synthesized ultraselective microporous metal-organic materials that were readily regenerated, including one that was selective for C2H6 over CO2, C2H2, and C2H4.

引用

页码：241 / +

页数：82

共 44 条

[1] ATOM DIPOLE INTERACTION MODEL FOR MOLECULAR POLARIZABILITY - APPLICATION TO POLYATOMIC-MOLECULES AND DETERMINATION OF ATOM POLARIZABILITIES [J].