Synthesis of the Palladium Catalyst with the Supercritical СO2-Impregnation Method Realized in the Static Mode

Abstract

Results of research of supercritical fluid CO2-impregnation process (the static mode) within a problem of synthesis of the palladium catalyst are given. The kinetics of process is characterized in the pressure range from 15.0 to 35.0 MPa on temperatures 308.15˚K, 313.15˚K, 318.15˚K, 323.15˚K, 328.15˚K and 333.15˚K. Results of surface assessment and activity measurements of the catalyst samples synthesized by supercritical СO2-impregnation of aluminum oxide suggest competitiveness of the discussed approach in comparison to traditional methods.

The Influence of Convection Heat Transfers for Vertical Mini-Tubes Using Solvent Carbon Dioxide and Porous Media at Supercritical Pressure

“…In many applications, however, the design limitation is the solubility of the substance in supercritical carbon dioxide. Therefore, the solubility data are essential both for the initial feasibility study and final process design [1][2][3][4][5][6]. The study focused on the following polar additives: Acetone, Ethanol, Methanol, Chloroform, and Dimethyl sulfoxide (DMSO).…”

“…Therefore, the supercritical media being one of the important processes to avoid failure especially it contains many advantages such as no tension in the surface, no phase interaction, and no capillary influence. Also, these benefits lead to porous structure penetration as well as to heterogeneous catalytic regeneration and to avoid synthesis problems [1][2][3][4]. Moreover, supercritical fluids are considered as a way to increase the roughness of surfaces and analyze the free surface energy of the tissue when being not wet, and contact at high water higher than 15O [5].…”

Review: <i>Discovering the Cluster World. Clusters’ Hidden Parameters Extraction from Thermophysical Data</i> and <i>The Wonders of Molecular Interactions. The Experimentally Based Molecular Interaction Features</i>

“…The processing of polymers [31], regeneration and synthesis of catalysts with CO 2 in a supercritical state [32] have become multimillion dollar businesses and the processing of waste from the chemical [33] and atomic energy industries [34] is an important environmental issue. The importance of the use of SFs in SFC, especially in isomer separation, is difficult to overestimate [1]- [8] [35].…”

Analytical Approach to Clusters in near Critical CO<sub>2</sub>

“…These technologies permit to extract needed components from solid and liquid substances, including pharmaceutical products [8], plant products [9]- [11], technological waste products [12], nuclear waste materials [13]. They improve effectiveness of the polymerization processes [4] [12] and catalysts production [14]. In analytical methods SF technology improves the selectiveness of needed products [5]- [8].…”