Is methanol-converted syngas used as a heat source for distillation?
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The methanol conversion gas is cooled to around 150 degrees through the coke oven gas preheater, the initial coke oven gas heat exchanger, and the boiler feedwater preheater, before being sent directly to the air cooler. It is reduced to around 45 degrees by the air cooler. Heat is wasted needlessly. The methanol distillation pre-column and the reboiler of the pressure column require about 15 tons of low-pressure (0.5 MPa) steam per hour. Can conversion gas at around 150 degrees be used as a heat source for distillation? Is this process being used anywhere currently?
Consult an energy-saving company for design purposes; although adding a heat exchanger allows for the utilization of waste heat, it also increases the pressure-related energy consumption of the methanol system. . .
In the methanol synthesis process resulting from hydrocarbon conversion, most companies use the heat generated in the system for distillation; as for preheating water, desalinated water, and the waste heat from distillation as well as the condensed liquid obtained from it, these can also be utilized.
Tianyi Hospital designed it so that the converted gas is used for distillation as a heat source
Yes, we use the converted gas to heat the two distillation columns.
That’s the case for many of them, but adding a separator to separate the condensate water helps