METHOD AND DEVICE FOR RECUPERATION OF HEAT ENERGY IN PLANTS CONTAINING AT LEAST ONE REFORMER, LOGIC UNIT AND APPLICATION OF HEAT ENERGY RECUPERATION DEVICE Russian patent published in 2020 - IPC F01K23/10 

FIELD: heat exchange.

SUBSTANCE: method of recovering heat energy in a unit containing a reformer involves evaporation of process condensate on a cooling path, wherein the flue gas is discharged through a flue gas channel in which heat energy is recovered. Air for combustion before supply to the reformer is directed through a channel for flue gas. Process condensate is heated and/or evaporated in the cooling circuit due to heat exchange with the gas produced in the installation. Air for combustion before heated in flue gas channel is heated by heat exchange with boiler feed water. Another invention of the group relates to a logic unit configured to implement said method and to control volumetric flows or to include components of the plant on an external air heater, through which boiler feed water and combustion air are directed to heat the latter. Device for recuperation of heat energy of installation including reformer comprises air heater of combustion air located outside the channel for flue gas and heat exchanger for process condensate or boiler feed water. On the cooling path there is a heat exchanger for process condensate, which is made with possibility of heat energy recuperation due to heat exchange with the gas produced in the installation. External air heater is made and arranged with the possibility of heat exchange between boiler feed water and combustion air before its heating in the flue gas channel. One more invention of the group relates to use of the above heat recovery device for heating of air for combustion by means of boiler feed water upstream of the channel for flue gas of the installation by means of external air heater located outside the flue gas channel, before the combustion air is directed through the flue gas duct.

EFFECT: group of inventions makes it possible to increase energy efficiency of units, in which the reforming process is carried out.

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