CONVERTER SYSTEM WITH MAXIMUM REACTION SPEED FOR EXOTHERMIC REACTIONS Russian patent published in 2010 - IPC C01B3/04 B01J8/06 

FIELD: chemistry.

SUBSTANCE: conversion method for ammonia synthesis involves: supply of a gaseous, reagent-rich stream containing a mixture of hydrogen and nitrogen at supply temperature into the heat exchange channel of a heat exchange reaction zone for heating the reagent-rich stream to temperature equal to that at the input, where the heat exchange reaction zone has a shell and tube heat exchanger, the heat exchange channel is an inter-tube channel through the heat exchanger, and the reaction channel has several tubes containing a catalyst, supply of a preheated reagent-rich stream at temperature equal to that at the input into a counterflow reaction channel containing a catalyst for exothermic conversion of the reagent gas into the obtained gas with formation of a product-rich reagent gas and obtained gases mixture, where the reaction channel contains several successive alternating zones containing a catalyst and zones which limit the reaction, indirect transfer of heat from the reaction channel to the heat exchange channel at a rate sufficient for keeping temperature of the mixture of gases below equilibrium temperature, and tapping the output stream rich in ammonia from the output of the reaction channel at outlet temperature. A converter for realising the said method is also proposed.

EFFECT: method and converter enable to control temperature of exothermic reactions on the length of the of the reactor, which enables use of less catalyst volume and increase conversion.

23 cl, 13 dwg, 1 ex