Back to results
US 7,402,188 B2Granted
Method and apparatus for coal gasifier
AssigneePratt & Whitney Rocketdyne, Inc.
InventorKenneth M. Sprouse
Life of this patent
Estimating the term…
Abstract
A method and apparatus for efficiently forming a gaseous material from a solid starting material. The produced gaseous material includes a CGE HHV having a high percentage of an original HHV of the starting material. The gaseous product may be used to form a plurality of materials for various purposes.
Claims29
A system to produce a gaseous product from a solid starting material, comprising:
- a first gasification subsystem;
- a second gasification subsystem;
- and
- a pump system connected in parallel and in series with the first gasification subsystem and the second gasification subsystem for providing a volume of the solid starting material to the first gasification subsystem and the second gasification subsystem, the pump system being operable to form a dry slurry of the solid starting material with a slurry material;
- and
- a cyclone separator interconnecting said first gasification subsystem and said second gasification subsystem;
- wherein said cyclone separator removes a volume of a solid material from a stream of gas produced by said first gasification subsystem prior to the stream passing to said second gasification subsystem;
- wherein said pump system increases a pressure of the solid starting material to a pressure greater than an ambient pressure.
5 more elements
A gasification system comprising:
- a high temperature gasifier for operating at a first temperature;
- a low temperature gasifier for operating at a second temperature that is lower than the first temperature, the low temperature gasifier being located downstream from the high temperature gasifier;
- a pump system connected in parallel and in series with the high temperature gasifier and the low temperature gasifier;
- and
- a cyclone separator connected between the high temperature gasifier and the low temperature gasifier.
2 more elements
Dependencies are inferred from the claim text.