Activated carbon fiber composites for ammonia, methane and hydrogen adsorption

Hydrogen Adsorption on Activated Carbon

The adsorption of hydrogen on carbon nanotubes and activated carbons has generated considerable interest in relation to hydrogen storage for fuel cells applications[1-3]. However, the widespread use of hydrogen as a fuel is limited by the lack of a convenient and cost-effective method of hydrogen storage. Adsorption of supercritical hydrogen is limited by the low interaction energy between hydr...

Activated carbon fiber cloth electrothermal swing adsorption system.

Capture and recovery of hazardous air pollutants (HAPs) and volatile organic compounds (VOCs) from gas streams using physical adsorption onto activated carbon fiber cloth (ACFC) is demonstrated on the bench-scale. This system is regenerated electrothermally, by passing an electric current directly through the ACFC. The adsorbate desorbs from the ACFC, rapidly condenses on the inside walls of th...

Numerical Modeling of Adsorption Dynamics through Activated-carbon-fiber Cloth

Activated-carbon-fiber cloth (ACFC) [ 1-5] has promising characteristics as an adsorbent, and potentially as a molecular sieve, a catalyst, or a catalyst support for a wide range of concentrations and chemical species. This is mainly because ACFC can be prepared with different and controlled pore size distributions, total pore volumes, specific surface areas and surface chemistries. ACFC can be...

Preparation of Carbon Molecular Sieves from Pistachio Shell and Walnut Shell for Kinetic Separation of Carbon Monoxide, Hydrogen, and Methane

In this study, two Carbon Molecular Sieves using Pistachio shell (CMS P) and Walnut shell (CMS W) were prepared by a chemical vapor deposition method and used for pressure swing adsorption and separation of CO/H2 and CO/CH4. Adsorption isotherms of gases obtained for both CMS’s. The Dubinin-Radushkevich isotherm model was used for comparing pore volum...

Activated Carbon Adsorption