Development of Kinetics and Mathematical Models for High Pressure Gasification of Lignite-Switchgrass Blends

 

Schematic and photo of the Pressurized Entrained Flow Reactor (PEFR) at Georgia Tech.
Schematic and photo of the Pressurized Entrained Flow Reactor (PEFR) at Georgia Tech.
Performer: 
Georgia Tech Research Corporation
Website:  Georgia Tech Research Corporation
Award Number:  FE0005339
Project Duration:  10/01/2010 – 03/31/2015
Total Award Value:  $1,565,399.00
DOE Share:  $1,101,814.00
Performer Share:  $463,585.00
Technology Area:  Coal and Coal/Biomass to Liquids
Key Technology:  Coal/Biomass Feed and Gasification
Location:  Atlanta, Georgia

Project Description

The objectives of this Georgia Tech study are to obtain experimental reactor data and develop kinetic rate expressions for pyrolysis and char gasification for the coal-biomass blends under conditions free from transport limitations, to develop a detailed understanding of the effect of pyrolysis conditions on the porous char structure, to build mathematical models that combine true kinetic rate expressions with transport models for predicting gasification behavior for a broad range of pressures and temperatures, and to investigate the physical and chemical parameters that might lead to synergistic effects in coal-biomass blends gasification.

Project Benefits

This Georgia Tech Research Corporation project will use an experimental reactor to produce data and develop kinetic rate expressions for pyrolysis and char gasification for coal-biomass blends. The impact of this project will be to develop a cost-effective gasification-based CBTL process to produce renewable liquid fuels that will provide diversity of fuel supply and energy security while resulting in lower future capital and operating costs. Specifically, this project will evaluate the effect of pyrolysis conditions on the porous char structure to build mathematical models that combine true kinetic rate expressions with transport models for predicting gasification behavior for a broad range of pressures and temperatures, and to investigate the physical and chemical parameters that might lead to synergistic effects in coal-biomass blends gasification.

Contact Information

Federal Project Manager 
Steven Markovich: markovis@netl.doe.gov
Technology Manager 
Jenny Tennant: jenny.tennant@netl.doe.gov
Principal Investigator 
Pradeep Agrawal: pradeep.agrawal@chbe.gatech.edu
 

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