Methanol plant and gasoline synthesis plant
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsMasaki Iijima, Haruaki Hirayama
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Abstract
Provided is a methanol plant that can obtain fresh water from sea water by using, in a seawater desalination device, the exhaust heat discharged in a step for producing methanol from natural gas. The methanol plant is provided with: a heat exchanger (4) that recovers into a thermal medium (for example, seawater) the exhaust heat discharged from a step for producing methanol from a feed stock (for example, natural gas); and a seawater desalinization device (6) that obtains freshwater from seawater using the exhaust heat recovered by means of the thermal medium.
Claims12
A methanol plant comprising:
- a heat exchanger which makes exhaust heat that is discharged from a process of producing methanol from a feed stock be recovered to seawater;
- and
- a seawater desalination device which obtains fresh water from the seawater by using the exhaust heat recovered from the seawater by the heat exchanger,
- wherein a plurality of the heat exchangers is provided in a distillation process of the process of producing methanol in a flow direction of mixed gas after methanol synthesis,
- wherein the mixed gas passes through the plurality of heat exchangers, and a temperature of the mixed gas decreases, and a wetness of the mixed gas increases as it flows toward a downstream side in the flow direction of the mixed gas, and
- wherein heat exchange with the mixed gas having increased wetness is performed in the heat exchanger provided on a downstream side in the flow direction of the mixed gas.
A gasoline synthesis plant comprising:
- a methanol plant which produces methanol from a feed stock;
- a heat exchanger which makes exhaust heat that is discharged from a process of producing gasoline from the methanol be recovered to seawater;
- and
- a seawater desalination device which obtains fresh water from the seawater by using the exhaust heat recovered by the seawater.
Dependencies are inferred from the claim text.