Hydrogenation of six model feeds containing three-, two-, and one-ring aromatic compounds was investigated to gain insights into the aromatic hydrogenation reaction chemistry over a commercial NiMo catalyst under practical reaction conditions. The hydrogenation reactivity of the aromatic compounds followed the following order: phenanthrene ∼ two-ring aromatics . one-ring aromatic. Comparison wi...

In this work, the SAFT-VR Mie equation of state is used in conjunction with Dubinin-Radushkevich-Astakhov (DRA) and Steele potentials, according to Multicomponent Potential Theory Adsorption (MPTA), model thermodynamic behavior fluids confined porous media. The problem specifications are temperature, volume, number moles each component, yielding a Helmholtz energy-minimization problem. Calculat...

Earlier computations on the work of separation of boundaries with adsorbed solute atmospheres are reconsidered in terms of reversible work cycles. Special attention is given to two limiting cases. These are the separation of a material interface under fully equilibrated conditions, for which the chemical potential of the adsorbed solute remains constant, and separation under constrained conditi...

Separation of CO2 from CO2-CH4 mixtures is an important issue in natural gas and biogas purification. The design of such separation processes depends on the knowledge of the behavior of multicomponent adsorption, particularly that of CO2-CH4 mixtures. In this study, we present a series of experimental binary equilibrium isotherms for CO2-CH4 mixtures on an activated carbon at 293 K and compare ...

Recently, we have suggested a model of adsorption in pores with amorphous and microporous solids walls, named the quenched solid density functional theory (QSDFT), that had been successfully applied to modeling adsorption in pores of siliceous materials [1]. This novel approach, which takes into account roughness and corrugation of pore walls, has been extended to carbon adsorbents. QSDFT repre...

The paper investigates and recommends the multicomponent composition of cottonseed oil subjected to adsorption purification, divided into macro-and micro-impurities, according qualitative composition: substances that have an acidic, coloring unsaponifiable nature. authors come conclusion it is necessary develop a combined thermally differentiated capable purification on local activated sorbents.

In this study, the adsorption of a multicomponent mixture active pharmaceutical compounds, such as Venlafaxine (VLX), Trazodone (TRZ) and Fluoxetine (FLX), was studied in biochar fixed-bed column. The selection appropriate (eucalyptus, grapevine cane holm tree biochar) an adsorbent carried out through batch assays. An insight into mechanism its correlation with chosen biochars performed, showin...

Published models and options for predicting equilibrium adsorption capacities of multicomponent mixtures using single component Dubinidlladushkevich isotherm equations and parameters were reviewed. They were then tested for abilities to predict total and component capacities reported for 93 binary adsorbed mixtures. The best model for calculating molar distributions was the Ideal Adsorbed Solut...

Atomic layer deposition sALDd has become an essential technique for fabricating nano-scale thin films in the microelectronics industry, and its applications have been extended to multicomponent thin films, as well as to single metal oxide and nitride films. A mathematical film growth model for ALD is proposed to predict the deposition characteristics of multicomponent thin films grown mainly in...