System and method of substitute natural gas production
AssigneeGeneral Electric Company
InventorPradeep Stanley Thacker
Life of this patent
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Abstract
A system includes a radiant syngas cooler (RSC). The RSC includes cooling tubing configured to transmit a fluid. The RSC is configured to have a heat transfer area such that the RSC generates a pressure and a temperature of the fluid exiting the RSC to a level allowing for superheating of the fluid to between approximately 750° Fahrenheit and approximately 850° Fahrenheit. Additionally, the heat transfer area is determined based on an amount of heat to be transferred to the fluid as the fluid passes through a heat exchanger in a first path external to the RSC.
Claims18
A system, comprising:
- a substitute natural gas (SNG) production system, comprising:
- a gasifier configured to generate syngas;
- a radiant syngas cooler (RSC) configured to cool the syngas through transfer of heat between the syngas and a fluid in a flow path, wherein the RSC has a length of between approximately 70 feet and approximately 100 feet;
- and
- a methanation unit configured to generate SNG from the syngas
- wherein the fluid flow path exits from the RSC and passes through the methanation unit, wherein generated pressure and a temperature of the fluid in the fluid flow path is based on an amount of heat to be transferred from the methanation unit to the fluid in the fluid flow path as the fluid passes through the methanation unit, wherein the fluid comprises water transmitted from a steam turbine along a second fluid flow path between the steam turbine and the RSC, wherein the methanation unit comprises a heat exchanger, wherein the methanation unit is disposed in the second fluid flow path between the steam turbine and the RSC.
A system, comprising:
- a radiant syngas cooler (RSC) comprising cooling tubing configured to transmit a fluid, wherein the RSC is configured to have a heat transfer area such that the RSC generates a pressure and a temperature of the fluid exiting the RSC to a level allowing for superheating of the fluid to between approximately 750° Fahrenheit and approximately 850° Fahrenheit, and wherein the heat transfer area is determined based on an amount of heat to be transferred to the fluid as the fluid passes through a heat exchanger in a first path external to the RSC.
A system, comprising:
- a substitute natural gas (SNG) production system, comprising:
- a radiant syngas cooler (RSC) configured to cool syngas;
- a first fluid path from the RSC to a water-gas shift reactor, wherein the water-gas shift reactor is configured to adjust a hydrogen to carbon monoxide ratio in the syngas to generate shifted syngas;
- a methanation unit configured to generate SNG from the shifted syngas;
- and
- a second fluid path configured to carry a fluid from the RSC to the methanation unit, wherein a pressure and a temperature of the fluid in the second fluid path is based on an amount of heat to be transferred to the fluid in the second fluid path as the fluid passes through the methanation unit.
Dependencies are inferred from the claim text.