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US 2011/0209407 A1Published application
Heat recovery in black water flash systems
AssigneeGeneral Electric Company
InventorsAlay S. Arya, Saumar Jyoti Hazarika, Ganesh Arumugam
Life of this patent
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Abstract
In one embodiment, a gasification system includes a black water processing system with flash tanks. The flash tanks may separate gases from black water to produce a first discharge of the black water and another discharge of separated gases. The gasification system also includes a heat exchanger that transfers heat from the discharge of separated gases to a process stream of the gasification system.
Claims20
A gasification system, comprising:
- a first flash tank configured to separate gases from black water to produce a first discharge of the black water and a second discharge of first separated gases;
- a second flash tank disposed downstream of and in series with the first flash tank, wherein the second flash tank is configured to separate gases from the black water to produce a third discharge of the black water and a fourth discharge of second separated gases;
- and
- a heat exchanger configured to transfer heat from the fourth discharge to a process stream of the gasification system.
1 more element
A gasification system, comprising:
- a vacuum flash tank configured to separate gases from black water to produce a first discharge of the black water and a second discharge of separated gases;
- a first heat exchanger configured to transfer heat from the second discharge to a process stream of the gasification system;
- and
- a second heat exchanger disposed downstream of the first heat exchanger, wherein the second heat exchanger is configured to transfer heat from the second discharge to a cooling fluid.
1 more element
A gasification system, comprising:
- a first flash tank configured to separate gases from black water to produce a first discharge of the black water and a second discharge of first separated gases;
- a second flash tank configured to separate the gases from the first discharge to produce a third discharge of the black water and a fourth discharge of second separated gases;
- a vacuum flash tank configured to separate the gases from the third discharge to produce a fifth discharge of the black water and a sixth discharge of third separated gases;
- and
- a heat exchanger configured to transfer heat from the fourth discharge to a process stream of the gasification system.
2 more elements
Dependencies are inferred from the claim text.