Zeolites have been widely used as catalysts, ion exchangers, and adsorbents since their
industrial breakthrough in the 1950s and continue to be state-of the-art adsorbents in many …

The efficacy of nanoporous crystalline materials in separation applications is often
influenced to a significant extent by diffusion of guest molecules within the pores of the …

The separation performance of a fixed bed adsorption unit is dictated by a combination of
two metrics: selectivity and uptake capacity. Most commonly, the screening of adsorbent …

For mixture separations, metal–organic frameworks (MOFs) are of practical interest. Such
separations are carried out in fixed bed adsorption devices that are commonly operated in a …

Molecular diffusion is an omnipresent phenomena that is important in a wide variety of
contexts in chemical, physical, and biological processes. In the majority of cases, the …

Ordered crystalline microporous materials such as zeolites, metal-organic frameworks
(MOFs), and zeolitic imidazolate frameworks (ZIFs) offer considerable potential for …

In this work, we have studied high-silica (Si/Al= 200) zeolite silicalite-1 pellets sorbent for the
separation of methane and nitrogen in a pressure swing adsorption (PSA) process. The …

Coalbed methane is an abundant form of natural gas extracted from coal beds. Coalbed
methane is viewed as a cleaner energy source versus petroleum and coal combustion …

There are surging demands to separate carbon dioxide from methane in upgrading low-
quality natural gas including biogas with an energy efficient process. In this work, adsorption …

We report adsorption isotherms of CO2 and CH4 on the zeolitic imidazolate framework ZIF-7
that exhibit gate opening features associated with a flexible framework structure. This …