The rapid increase of natural gas consumption has induced imbalance between supply and
demand of natural gas, and the continuous growth of methane emissions has severely …

Coal-based carbon molecular sieves (CMS) were modified by organic reagents with
affinities for hydrocarbons including tetracosane (C24), lauryl sodium sulfate (SDS), and …

Adsorption separation systems offer the possibility to replace or augment legacy separation
systems with more efficient processes, resulting in enormous savings in energy. However …

Activated carbon monoliths with hierarchical pore structures were prepared from petroleum
tar pitch and powdered coal in a low pressure foaming process with potassium hydroxide …

The separation of methane, a commercially important fuel and greenhouse gas, from
nitrogen is a very important and challenging issue. To address this problem, we …

Hydrogen is a major component of coke oven gas (COG) and can be used in gas-based
direct reduction iron processes to help the steel industry achieve the carbon peaking and …

Information on mixture adsorption equilibrium is vital in develo** adsorption-based
separation processes. Because measuring mixture adsorption is more difficult than …

In this study, natural clinoptilolite was modified by cation exchange using alkali metal cations
(Li+, Na+, K+, Rb+, Cs+), alkaline earth metal cations (Be 2+, Mg 2+, Ca 2+, Sr 2+, Ba 2+) …

We report a dual-reflux pressure swing adsorption (DR-PSA) apparatus and cycle
configuration to recover an enriched methane product from mixtures of methane and …

Coalbed methane (CBM), known as an unconventional gas resource, can be used as a high-
energy fuel; however, the concentration of methane is critical to its utilization approach. This …