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US 2015/0307791 A1Published application
Gasification process and system using dryer integrated with water-gas shift catalyst
AssigneesSK Innovation Co., Ltd., SK Enrgy Co., Ltd.
InventorsJong Sung PARK, Ji Sung PARK, Cheon Seong LEE, Gyoo Tae KIM, Jae Wook SHIN, Yong Jeon KIM
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Abstract
The present invention relates to a gasification process and system, wherein a dryer integrated with a water-gas-shift catalyst is disposed in front of a gasifier.
Claims17
A gasification method, comprising the steps of:
- a) supplying a water-containing carbonaceous feedstock into a dryer integrated with a water-gas-shift reaction catalyst;
- b) drying the water-containing carbonaceous feedstock in the dryer to produce a steam while performing a water-gas-shift reaction using the steam as a reactant;
- c) solid-gas-separating the dried carbonaceous feedstock and the water-gas-shift reaction product;
- d) gasifying the dried carbonaceous feedstock in the presence of a gasifying agent to obtain a gasification product;
- and
- e) recycling at least a part of the gasification product into the dryer in the step b) to provide an energy source for drying the water-containing carbonaceous feedstock.
3 more elements
A gasification system, comprising:
- a gasifier including a gasifying agent inlet and a dried carbonaceous feedstock inlet;
- a dryer which is integrated with a water-gas-shift reaction catalyst and which discharges a carbonaceous feedstock dried by at least a part of a gasification product recycled from the gasifier and a water-gas-shift reaction product;
- and
- a solid-gas separator which separates the dried carbonaceous feedstock and water-gas-shift reaction product discharged from the dryer and which is connected with the dried carbonaceous feedstock inlet of the gasifier.
1 more element
Dependencies are inferred from the claim text.