SU1194480A1 - Method of cooling a catalyst - Google Patents

Abstract

METHOD OF COOLING THE CATALYST by continuously supplying a mixture of gaseous reactants with an inert gas to the catalyst bed and subsequent removal of reaction products and an inert gas, characterized in that, in order to increase the efficiency of the catalyst, the products of the reaction and inert gas are removed periodically with a pulsation frequency of 1 -2 Hz, while the pressure of the mixture of gases in the granular layer of the catalyst is pulsationally reduced to 0.7-0.8 P of the initial pressure of gases with S in the catalyst bed. (L

Description

with

4i 4

The invention relates to chemical technology and can be used to cool porous catapacizers in catalytic reactors, as well as other porous materials. The aim of the invention is to increase the efficiency of the catalyst. Example 1. A granular layer of an ISI catalyst is placed in a catalytic reactor. Synthesis gas used to produce synthetic methane is continuously fed into the reactor.

Pressure

The coefficient of thermal conductivity of the catalyst at a frequency of, Hz

0.5

0.0610.0730.075

0.0750.1870.291

0.0800.2890.294

0.0870,290,297

0,0500,0530,054

NGO;

0.092

0.069

0.075

0.080

0.049 0 la, and the inert gas is supplied to remove heat from the catalyst, and the removal of the reaction products and the inert gas is pulsating at a frequency of 0.5; one; 1.5; 2.3 Hz and a pressure decrease of 0.6; 0.7; 0.75; 0.8; 0.9 of the initial pressure of the gases in the catalyst bed and the coefficient of thermal conductivity of the catalyst (that serves as a physical characteristic of the body in relation to its ability to thermal conductivity). The results of the experiments are summarized in the table.

Claims (1)

METHOD OF COOLING THE CATALYST by continuously feeding a mixture of gaseous reactants with an inert gas to the catalyst granular layer and then removing the reaction products and inert gas, characterized in that, in order to increase the efficiency of the catalyst, the reaction products and inert gas are removed periodically with a pulsation frequency of 1- 2 Hz, while the pressure of the gas mixture in the granular catalyst bed is pulsation reduced to 0.7-> 0.8 R of the initial gas pressure in the catalyst bed.