Adsorption and ion exchange are examples of fixed-bed sorption processes that show transient behavior. This means differential equations needed to design them. As a result, numerical methods commonly utilized solve these equations. The solution frequently used in analytical is called the Thomas solution. gave complete adds nonlinear equilibrium relationship depends on second-order reaction kine...

Abstract Oxidation of the Fe-base alloy T22 in humid air at 500 °C was investigated. The samples were exposed for up to 1000 h 1 bar and 20 bar. influence three furnace tube materials, alumina, ET45 quartz glass, on oxide scale morphology Samples their cross sections examined using optical microscopy, scanning electron probe micro analysis Raman spectroscopy. Multilayered scales consisting hema...

MNDO semi-empirical SCF MO calculations are used to study the pyramidal nitrogen atom inversion and configurational equilibria in the title compounds.

A large proportion of extant crude oil is found in carbonate reservoirs worldwide. Alkylbenzene sulfonates are inexpensive anionic surfactants but they cannot be used these due to their incompatibility with divalent ions and high adsorption on the rocks. This paper proposes solution that problem by blending this kind surfactant surface-active ionic liquids. Namely, a formulation containing sodi...