New theoretical relationships for a complex catalytic reaction accompanied by deactivation are obtained, using as an example the two-step mechanism (Temkin–Boudart mechanism) with irreversible reactions and deactivation. In domain of small concentrations, Alim=NSk1CAkd, where Alim is limit integral consumption gas substance, NS number active sites per unit catalyst surface; k1 kd, kinetic coeff...

In the formulation of zeolite-based catalysts for direct cracking crude, use kaolin matrixes prevents, to a large extent, zeolite dealumination. Metals and other impurities in crude oil provoke slight decrease activity selectivity patterns.

We decorated HS-functionalized cellulose nanocrystallite (CNC) films with monodisperse Au nanoparticles (AuNPs) to form a novel nanocomposite catalyst AuNPs@HS-CNC. The uniform, fine AuNPs were made by the reduction of HAuCl4 solution with thiol (HS-) group-functionalized CNC films. The AuNPs@HS-CNC nanocomposites were examined by X-ray photoelectron spectroscopy (XPS), TEM, ATR-IR and solid-st...

The performance of Fe/olivine catalysts was tested in the continuous steam gasification sawdust a bench scale plant provided with fountain confined conical spouted bed reactor at 850 °C. Olivine used as catalyst support and loaded 5 wt%Fe. activity stability monitored by nitrogen adsorption-desorption, X-ray fluorescence spectroscopy, temperature programmed reduction, diffraction photoelectron ...

High-throughput development of catalysts, initiators, and polymeric materials combines automated parallel catalyst synthesis and automated polymerization reactors. The reactors can be additionally equipped with on-line monitoring (ReactIR from Mettler) based on ATR-FT-IR technique. This powerful tool has proven to be a very valuable probe for high-throughput experiments. During copolymerization...