The exit temperature of the converter is high; how can this excess heat be recovered and utilized?
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The exit temperature of the converter is high; how can this excess heat be recovered and utilized?
I’m not sure whether the poster is referring to a medium-temperature converter or a low-temperature converter, but in any case, heat recovery is primarily used to generate steam in waste heat boilers, to heat process gases (liquids), and to heat process water
Waste boilers can be used to generate steam of different grades, which is then used to preheat the boiler feedwater and deionized water.
We use the outlet gas from our medium-pressure converter furnace to heat the inlet gas for methanation and the inlet gas for the medium-pressure conversion process
We are heating the methanation inlet and preheating the boiler water
Our company uses two waste heat boilers; the feed water for the medium-pressure waste heat boilers comes from the boiler room, and it enters these boilers via control valves to exchange heat with the medium-temperature converted gas, thereby producing 1.6 MPa steam that is sent to the low-pressure steam network. The low-pressure waste boiler feed water comes from the boiler room and enters the low-pressure waste heat boiler through a control valve, where it exchanges heat with the low-temperature shift gas to produce 0.2 MPa steam for use in the deoxygenator.