Open AccessAn experience of catalyst design using mathematical modeling
Author(s) -
Н. М. Островский
Publication year - 2006
Publication title -
chemical industry and chemical engineering quarterly
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.189
H-Index - 26
eISSN - 2217-7434
pISSN - 1451-9372
DOI - 10.2298/ciceq0603187o
Subject(s) - catalysis , naphtha , inert , platinum , chemical engineering , reagent , materials science , porosity , pellets , chemistry , process engineering , organic chemistry , engineering , composite material
The report concerns an approach called the "kinetic-assisted design of catalysts" that has been widely used in the literature during the last ten years. Several examples of mathematical modeling application in catalyst design are presented. The roles and ratio of the active centers of "metallic" (Pt?) and "ionic" platinum (Pt n+) and the acid centers of Al2O3 (AC) in naphtha reforming catalysts are discussed. The role of the micro-distribution of active centers in the catalyst porous structure (among the pores with different size) was analyzed. The affect of porous structure on the reactions accompanied by the capillary condensation of some reagents was considered. It was demonstrated that different shapes of catalyst pellets may be optimal depending on the optimization criterion (effectiveness factor, bed productivity and others). The application of solid inert in the catalyst bed ("dilution" of the catalyst) in unsteady-state regimes was examined.