CO2 full capture and H2S enrichment process
A process and enrichment technology, applied in the field of CO2 total capture and H2S enrichment process, can solve the problems of nitrogen consumption, high operating cost, loss, etc., and achieve the effect of reducing operating cost, reducing circulation, and improving solubility
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[0022] Further detailed description will be made below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, a CO 2 Total capture and H 2 The S enrichment process includes a low-temperature methanol washing process and an acid gas stripping process, wherein the low-temperature methanol washing process includes the following steps:
[0024] 1) The crude synthesis gas is mixed with medium and low pressure CO in the inlet heat exchanger m15 2 The finished gas is heat-exchanged and cooled, and then the condensed water is separated by the crude synthesis gas separator 1, and is mixed with the purified gas and low-pressure CO in the cooler 16. 2 The finished product gas is cooled to -12~-23°C by heat exchange, and then sent to the bottom of the absorption tower 2, where it is washed by lean methanol from the thermal regeneration tower 28 after cooling, all the H in the crude synthesis gas 2 S and lots of CO 2 After being dissolved and absorbed by th...
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