π-Complexation Mesoporous Adsorbents Cu-MCM-48 for Ethylene-Ethane Separation

陈乐; 刘晓勤

doi:10.1016/S1004-9541(08)60123-8

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π-Complexation Mesoporous Adsorbents Cu-MCM-48 for Ethylene-Ethane Separation

Updated：2026-01-06

- π-Complexation Mesoporous Adsorbents Cu-MCM-48 for Ethylene-Ethane Separation
- Chinese Journal of Chemical Engineering Vol. 16, Issue 4, Pages: 570-574(2008)
- Affiliations：
  
  State Key Laboratory of Material-Oriented Chemical Engineering, School of Chemistry and Chemical Engineering, Nanjing University of Technology,Nanjing,China,210009
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(08)60123-8
  CLC：
- Published：2008
- Accepted：
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CHEN Le, LIU Xiaoqin. π-Complexation Mesoporous Adsorbents Cu-MCM-48 for Ethylene-Ethane Separation[J]. , 2008, 16(4): 570-574.
DOI：

CHEN Le, LIU Xiaoqin. π-Complexation Mesoporous Adsorbents Cu-MCM-48 for Ethylene-Ethane Separation[J]. , 2008, 16(4): 570-574. DOI： 10.1016/S1004-9541(08)60123-8.

摘要

Abstract

Copper incorporated MCM-48 molecular sieve adsorbents with different Cu content have been hydrothermally synthesized. The samples have been characterized by various physicochemical methods

including X-ray diffraction (XRD)

nitrogen adsorption (N

) and X-ray photoelectron spectroscopy (XPS). The results reveal that Cu-MCM-48 with mass fraction of copper up to 10% can still retain the uniform mesoporous framework of MCM-48. The copper in the framework of MCM-48 was easily auto-reduced to Cu(I) in N

at high temperature

which did not alter the mesoporous structure of MCM-48. The adsorption equilibrium isotherms of ethylene and ethane on these molecular sieve adsorbents have been measured at 30℃. At 100 kPa

the adsorption capacities of ethylene on 5Cu-MCM-48 and 10Cu-MCM-48 are higher than those on MCM-48. The 10Cu-MCM-48 molecular sieve adsorbent has a higher selective adsorption ratio of ethylene to ethane

the separation factor is 3.8

and the amount of ethylene adsorbed is 11.1 ml·g

-1

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