Abstract This study examines the effect of a short term rotation on system constant volume. Adsorption CO 2 is performed Activated Carbon (AC) at 281, 293 and 298 K with special designed device that allows rotation. The adsorption isotherms were conducted up to 10 bar for both No Rotational (NoROT) (ROT) cases. ROT case refers 60 s 5000 rpm. experimental results fitted Langmuir as well Dubinin–...

Many important industrial separation processes based on adsorption operate close to saturation. In this regime, the underlying adsorption processes are mostly driven by entropic forces. At equilibrium, the entropy of adsorption is closely related to the enthalpy of adsorption. Thus, studying the behavior of the enthalpy of adsorption as a function of loading is fundamental to understanding sepa...

BACKGROUND In order to remove heavy metals, water treatment by adsorption of zeolite is gaining momentum due to low cost and good performance. In this research, the natural mordenite was used as an adsorbent to remove lead ions in an aqueous solution. METHODS The effects of adsorption temperature, time and initial concentration of lead on the adsorption yield were investigated. Response surfa...

The interaction of carbon monoxide and oxygen with gold particles supported on zinc oxide, alumina, and titania was investigated by microcalorimetry. Multiple processes were detected during CO adsorption, including adsorption of CO on the gold particles and support, oxidation of CO, and formation of carbonates. The rate of O2 adsorption was much slower than that of CO adsorption. The heats and ...

ABSTRACT Safflower is a crop of high economic value with oil concentration in its seeds and great industrial versatility, besides various benefits to human health. As other agricultural crops, it common store safflower make available different periods the year and, due hygroscopic characteristics, studies evaluating effect temperature air relative humidity on moisture content become relevant. T...

the work focuses on the removing of cu(ii) from aqueous solution by linde f(k) zeolite. the zeolite is synthesized from fly ash by hydrothermal process. the adsorption experiments discuss several factors including the optimal solution ph, zeolite dosage, adsorption temperature, adsorption kinetics and adsorption isotherm equation. the results show that, the optimal solution ph is 6 and the effi...