Project No: FE0007977
Performer: 


Contacts
Jenny B. Tennant
Technology Manager
National Energy Technology Laboratory
3610 Collins Ferry Road
P.O. Box 880, 
Morgantown, WV 26507-0880
304-285-4830
Jenny.Tennant@netl.doe.gov

Arun C. Bose
Project Manager
National Energy Technology Laboratory
626 Cochrans Mill Road
P.O. Box 10940 
Pittsburgh, PA 15236-0940
412-386-4467
arun.bose@netl.doe.gov

Jose R. Marasigan
Principal Investigator
Electric Power Research Institute
3420 Hillview Avenue
Palo Alto, CA, 94304-1338
650-855-8739
jmarasigan@epri.com

Duration
Award Date:  10/01/2011
Project Date:  09/30/2013

Cost
DOE Share: $796,482.00
Performer Share: $239,126.00
Total Award Value: $1,035,608.00

Advanced Energy Systems - Gasification Systems

Liquid CO2 Slurry (LCO2) for Feeding Low Rank Coal (LRC) Gasifiers

Project Description

This project will exploit the availability of CO2 in a gasification power island for the benefit of IGCC-CCS integrated plants. EPRI will leverage the findings of laboratory tests to support the development and evaluation of mechanical engineering designs of LRC/LCO2 slurry preparation systems, which in turn will be used to develop higher resolution IGCC plant performance and cost models. The project aims to validate that LCO2 can achieve higher solid loading than water slurry, study the design criteria for a LCO2-coal slurry preparation/mixing system that is superior to conventional feed systems, and demonstrate potential plant thermal efficiency improvement over a water-coal slurry-based feed system.


Program Background and Project Benefits

There is increased interest in carbon capture and storage (CCS) for future coal-based power plants, and in a CCS integrated gasification plant, relatively pure, high pressure CO2 stream(s) will be available within the power plant. Electric Power Research Institute (EPRI) aims to help reduce the cost and improve the efficiency of integrated gasification combined cycle (IGCC) with CCS by using a portion of the high purity CO2 product stream as the carrier fluid to feed low rank coal (LRC) into the gasifier.

EPRI proposes to confirm the potential advantages of LRC/liquid carbon dioxide (LCO2) slurries by:

The outcome of the design effort will help lead the way to integrating LRC/LCO2 slurry feed systems into future systems for prototype testing at an IGCC with CCS power plant. The successful completion of the project will also lead to: