Methods and systems for integrated boiler feed water heating
AssigneeGeneral Electric Company
InventorsAaron John Avagliano, Paul Steven Wallace
Life of this patent
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Abstract
Methods and systems for a gasifier system are provided. The gasifier system includes a gasifier including a syngas cooler configured to transfer heat from a reaction zone of the gasifier to a flow of fluid through the syngas cooler, a reaction vessel coupled in flow communication with the syngas cooler wherein the reaction vessel is adapted to receive the flow of fluid and generate heat in an exothermic shift reaction. The system also includes a heat exchanger coupled in flow communication with the reaction vessel, the heat exchanger adapted to produce relatively high pressure steam using the generated heat.
Claims20
A gasifier system comprising:
- a gasifier comprising a syngas cooler configured to transfer heat from a reaction zone of the gasifier to a flow of fluid through the syngas cooler;
- a reaction vessel coupled in flow communication with said syngas cooler, said reaction vessel adapted to receive said flow of fluid and generate heat in an exothermic shift reaction;
- and
- one or more heat exchangers coupled in flow communication with said reaction vessel, said heat exchanger adapted to at least one of cool or heat a flow of feedwater and produce relatively high pressure steam using the generated heat.
A method of operating a gasifier system comprising:
- supplying a flow of shift feed to a shift reactor;
- generating heat in a flow of shift effluent using an exothermic shift reaction in the shift reactor;
- and
- channeling the flow of shift effluent to a heat exchanger such that at least one of heat is transferred between the shift effluent and feedwater and a relatively high pressure steam is produced using the generated heat.
A gasification system comprising:
- a pressure vessel comprising a syngas cooler configured to remove heat from a reaction zone in at least one of said pressure vessel and a separate gasifier vessel;
- a shift reactor in flow communication with said pressure vessel, said shift reactor configured to receive a flow of syngas from said pressure vessel;
- and
- a flow of high pressure steam feed in flow communication with a first circuit of a first heat exchanger, said first heat exchanger configured to preheat the flow of high pressure steam feed.
Dependencies are inferred from the claim text.