Issue 9, 2018

Enabling alternative ethylene production through its selective adsorption in the metal–organic framework Mn2(m-dobdc)

Abstract

The unique adsorptive properties of metal–organic frameworks open the door to new processes for energy and raw materials production. One such process is the oxidative coupling of methane for the generation of ethylene, which has limited viability due to the high cost of cryogenic distillation. Rather than employing such a traditional separation route, we propose the use of a porous material that is highly selective for ethylene over a wide range of gases in an energy- and cost-effective adsorbent-based separation process. Here, we analyze the metal–organic frameworks M2(m-dobdc) (M = Mg, Mn, Fe, Co, Ni; m-dobdc4− = 4,6-dioxido-1,3-benzenedicarboxylate), featuring a high density of coordinatively-unsaturated M2+ sites, along with the commercial adsorbent zeolite CaX, for their ability to purify ethylene from the effluent of an oxidative coupling of methane process. Our results show that unique metal–adsorbate interactions facilitated by Mn2(m-dobdc) render this material an outstanding adsorbent for the capture of ethylene from the product mixture, enabling this potentially disruptive alternative process for ethylene production.

Graphical abstract: Enabling alternative ethylene production through its selective adsorption in the metal–organic framework Mn2(m-dobdc)

Supplementary files

Article information

Article type
Paper
Submitted
07 မေ 2018
Accepted
11 ဇွန် 2018
First published
11 ဇွန် 2018

Energy Environ. Sci., 2018,11, 2423-2431

Author version available

Enabling alternative ethylene production through its selective adsorption in the metal–organic framework Mn2(m-dobdc)

J. E. Bachman, D. A. Reed, M. T. Kapelewski, G. Chachra, D. Jonnavittula, G. Radaelli and J. R. Long, Energy Environ. Sci., 2018, 11, 2423 DOI: 10.1039/C8EE01332B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements