Numerical Simulation of Heat and Mass Transfer in an Open-Cell Foam Catalyst on Example of the Acetylene Hydrogenation Reaction

Abstract

In the present work, based on numerical simulation, a comparative analysis of the flow of a chemically reacting gas flow through a catalyst is performed using the example of selective hydrogenation of acetylene in a wide range of flow temperatures variation. Catalyst models are based on open-cell foam material. A comparison is also made with calculations and experimental data for a granular catalyst. The porosity and cell diameter were chosen as variable parameters for the porous catalyst. The results of numerical studies were obtained in the form of component concentration fields of the gas mixture, vector fields of gas movement, values of conversion, and selectivity of the reaction under study. The parameters of the porous material of the catalyst are determined for the maximum efficiency of the process under study.

Pyrolytic method for processing polymer composites

“…One of the main problems of environmental protection is the development of technologies for recycling polymer waste. It is known that, due to the specific physical and chemical properties, polymer waste of artificial and synthetic origin is thermodynamically stable to the action of aggressive environmental factors and does not decompose naturally [1][2][3]. Their life cycle ranges from 50 to 250 years.…”

Results of the development of the technology of light-weight concrete based on diatomite rocks and instrument study of its thermal conductivity

“…Результаты исследований показали, что добавление HGM позволяет снизить плотность теплового потока ввиду высокого термического сопротивления микросфер. Таким образом, рраспределение теплового потока в композите очень неравномерно, что и привело к снижению коэффициента теплопроводности композита [15].…”

Numerical simulation of dust particle deposition and heat transfer in fin-plate radiators

“…At the same time, a radiator with such a fin design showed high dust resistance. Thus, in modern scientific literature, problems of heat transfer in radiators have been solved [22,23], the influence of heat exchanger geometry on thermal-hydraulic characteristics has been studied [24], the influence of dust particle deposition on heat transfer. In this work, we numerically study the effect of radiator geometry on the efficiency of dust particle deposition and, as a consequence, the change in heat flow from the radiator.…”