Unpublished AIChE shall not be responsible for statements or opinions contained in papers or printed in its publications. Abstract This paper describes a novel calorimeter applicable for the simultaneous measurement of adsorption isotherms and the corresponding heats of adsorption. The calorimeter is based on a new metrological principle as a gas surrounding the adsorption vessel containing the...

The adsorption/absorption of hydrogen and the adsorption of carbon monoxide by niobium foils, at room temperature, was studied using thermal desorption spectroscopy. Two hydrogen desorption peaks were observed with a maximum at 404 and 471 K. The first hydrogen desorption peak is regarded as hydrogen desorbing from surface sites while the second peak, which represents desorption from surface si...

Separation of carbon dioxide and methane is an important issue in upgrading low-quality natural gas. Adsorption equilibria and kinetics of CO(2) and CH(4) on a copper metal-organic framework (MOF), Cu(hfipbb)(H(2)hfipbb)(0.5) [H(2)hfipbb=4,4'-(hexafluoroisopropylidene) bis(benzoic acid)], were investigated to evaluate the feasibility of removing CO(2) from CH(4) in a pressure swing adsorption p...

The adsorption of CO on Pd/Al2O3/Ta~110! model catalysts was studied using infrared reflection adsorption spectroscopy ~IRAS! for two different Pd coverages, corresponding to 25–30 and 60–70 Å average particle sizes. Striking similarities between the IRAS data for the larger particles and Pd single crystals indicate that the particles are comprised predominantly of ^111& and ^100& facets. The i...

In this paper, methane adsorption on open ended single-walled carbon nanotubes (o-SWCNT) is studied using molecular dynamics simulation. A site-site potential model of so-called Leonard-Jones is considered to evaluate all interactions. Monolayer/multilayer adsorption isotherms for methane inside/outside of an armchair (10, 10) o-SWCNT are obtained at different temperatures. The simulation data ...

Carbonaceous porous materials derived from leather skin residues have been found to have excellent CO₂ adsorption properties, with interestingly high gas selectivities for CO₂ (α > 200 at a gas composition of 15% CO₂/85% N₂, 273K, 1 bar) and capacities (>2 mmol·g-1 at 273 K). Both CO₂ isotherms and the high heat of adsorption pointed to the presence of strong binding sites for CO₂ which may be ...

The inhibiting effects of some newly synthesized Schiff bases on the corrosion of Al-Pure in 1.0 M HCl have been studied by means of the chemical and electrochemical methods. The Schiff bases m-Chloroaniline-N-benzylidene (m-CANB), p-Chloroaniline–N-benzylidene (p-CANB), Benzylamine-N-(p-methoxy benzylidene) (BANPMB) and 2-Phenylethylamine-N-(p-methoxy benzylidene) (2PANPMB) were synthesized fr...