Deep Removal of Trace CH and CO from CH by Using Customized Potassium-exchange Mordenite

Overview

Journal Chem Sci

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2023 Jun 30

PMID 37389266

Authors

Hongwei Chen

Binyu Wang

Bin Zhang

Jiuhong Chen

Jiabao Gui

Xiufeng Shi

Wenfu Yan

Jinping Li

Libo Li

Affiliations

Soon will be listed here.

Abstract

Adsorptive separation using porous materials is a promising approach for separating alkynes/olefins due to its energy efficiency, while the deep removal of trace amounts of CH and CO from CH is still very challenging for a commercial adsorbent. Herein, we report a low-cost inorganic metal cation-mediated mordenite (MOR) zeolite with the specific location and distribution of K cations acting as a goalkeeper for accurately controlling diffusion channels, as evidence of the experimental and simulation results. Deep purification of CH from ternary CO/CH/CH mixtures was first realized on K-MOR with exceptional results, achieving a remarkable polymer-grade CH productivity of 1742 L kg for the CO/CH/CH mixture. Our approach which only involves adjusting the equilibrium ions, is both promising and cost-effective, and opens up new possibilities for the use of zeolites in the industrial light hydrocarbon adsorption and purification process.

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