Gas manufacturing equipment and gas manufacturing method

Abstract

The present invention provides a gas production system that can effectively utilize the heat contained in the product gas flowing out of a reverse water-gas shift reactor. [Solution] The gas production equipment 1A includes a regeneration tower 7b that regenerates an absorbent liquid by heating the absorbent liquid that has adsorbed CO2 to remove CO2 from the absorbent liquid, and a reverse shift reactor 9 that generates a product gas containing CO by a reverse water-gas shift reaction using the CO2 introduced from the regeneration tower 7b. The regeneration tower 7b includes a heating section 7c that heats the absorbent liquid using the heat contained in the product gas generated in the reverse shift reactor 9.

Claims

1. An absorbent liquid regeneration device that regenerates the absorbent liquid by heating the absorbent liquid to remove the CO2 adsorbed from it, A synthesis gas production apparatus that generates a CO-containing product gas by a chemical reaction using CO2 introduced from the absorbent liquid regeneration apparatus, Equipped with, The absorbent liquid regeneration apparatus is a gas production apparatus that includes a heating section for heating the absorbent liquid using the heat contained in the product gas generated by the synthesis gas production apparatus.

2. The gas production apparatus according to claim 1, wherein the generated gas flow path between the synthesis gas production apparatus and the heating unit is provided with a preheating unit that preheats the upstream gas introduced into the synthesis gas production apparatus with the generated gas.

3. The gas production apparatus according to claim 1 or 2, further comprising a product gas compressor for pressurizing the product gas discharged from the synthesis gas production apparatus.

4. The gas production apparatus according to claim 1 or 2, further comprising an upstream gas compressor for pressurizing the upstream gas introduced into the synthesis gas production apparatus.

5. The apparatus includes a water separator for separating water vapor from the product gas discharged from the aforementioned synthesis gas production apparatus. The gas production apparatus according to claim 1 or 2, wherein the steam separated from the water separator is guided to the heating section.

6. The gas production apparatus according to claim 1 or 2, further comprising a hydrocarbon fuel production apparatus that receives the generated gas discharged from the synthesis gas production apparatus and produces hydrocarbon fuel.

7. The gas production apparatus according to claim 1 or 2, wherein the synthesis gas production apparatus is an SOEC co-electrolytic apparatus that produces a product gas containing CO from H2O and CO2.

8. The gas production apparatus according to claim 1 or 2, wherein the synthesis gas production apparatus is a reverse shift reactor, and the reverse shift reactor produces a product gas containing CO by a reverse water-gas shift reaction using CO2 introduced from the absorption liquid regeneration apparatus.

9. It is equipped with a boiler power generation system that uses steam generated from combustion gases to power a turbine and generate electricity. The gas production equipment according to claim 8, wherein the absorbent liquid absorbs CO2 from exhaust gas discharged from the boiler power generation device.

10. The system includes a water electrolysis apparatus that receives power from the aforementioned boiler power generation apparatus to produce H2 from H2O, The gas production apparatus according to claim 9, wherein H2 obtained in the water electrolysis apparatus is led to the reverse shift reactor.

11. The absorbent solution regeneration process involves heating the absorbent solution to remove CO2 and regenerate it, A synthesis gas production process that generates a CO-containing product gas by a chemical reaction using the CO2 removed in the aforementioned absorption liquid regeneration process, It has, The absorbent liquid regeneration step is a gas production method comprising a heating step of heating the absorbent liquid using the heat contained in the product gas generated in the synthesis gas production step.

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