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FY2005 FRED Database Project Description:

Project Information

 

 

Project Title:

Carbon Dioxide Separation from Flue Gas

 

Project I.D.:

FWP-03FE22

 

FE Program:

Carbon Sequestration

 

Research Type:

Applied Research        

 

Funding Memorandum:

Field Office Work Agreement            

 

 

Project Performer

 

 

Performer Type:

DOE/National Laboratory

 

Performer:

Los Alamos National Laboratory (LANL)

 

Performer Address:

P.O. Box 1663
528 35th St.

 

Other Project Team Members:

SIMTECHE, Half Moon Bay, CA, 940192268, CA14

 

 

Project Dates

 

 

Project Start Date:

1-Jun-03

 

Project End Date:

30-Jun-05

 

 

Project Location

 

 

City:

Los Alamos

 

State:

NM

 

ZIP Code:

87544-2201

 

Congressional District:

3

 

Responsible FE Site:

NETL

 

 

Project Contact

 

 

Name:

Currier, Robert P

 

Telephone:

(505) 665-3601

 

Fax Number:

(505) 667-0440

 

Email Address:

currier@lanl.gov

 

 

DOE/FE Contact

 

 

Name:

Figueroa, Jose' D.

 

Telephone Number:

4123864966               4966

 

Site Location:

NETL

 

Email Address:

jose.figueroa@netl.doe.gov        

 

 

Cost & Funding Info.

 

 

Total Estimated Cost:

$400,000

 

DOE Share:

$400,000

 

Non-DOE Share:

$0

 

 

Project Description

 

 

Project Description:

The primary objectives of this evaluation are to:



(1) Determine the Minimum CO2 Hydrate Formation Pressure; MHFP; attainable using selective hydrate promoters; most probably alkyl-onium salts; dissolved in water in conjunction with SO2 from a simulated flue gas stream.



(2) Determine the hydrate composition; at the MHFP; for a feed gaseous stream; containing 11% CO2; 79% N2; 10% O2 (mole basis); in the presence of a selective promoter with or without up to 1% SO2.



(3) Determine the CO2 remaining in the simulated flue gas; after equilibrium formation of the hydrate takes place; and the gaseous composition of the hydrate decomposition product.



(4) Determine the projected CO2 separation ratio from a simulated flue gas; having a total pressures of a) 1 atmosphere; b) 3 atmospheres; c) 5 atmospheres; and d) 10 atmospheres at process temperatures of 274; 277; and 280 deg.K. 



(5) Perform a brief engineering evaluation to estimate the cost and performance benefits of applying a CO2 hydrate separation process to a simulated flue gas to deliver pipeline pressure carbon dioxide following decomposition of hydrate at elevated pressures. 

 

Project Background:

A competitive means of removing carbon dioxide from flue gases is essential to meeting future cost objectives for carbon management.  Current processes for carbon dioxide removal from flue gas will witness significant parasitic energy costs associated with compression to pipeline pressures.  Use of amine and Selexol based processes for wet scrubbing result in low pressure carbon dioxide upon regeneration of the solvent (20-40 psi).  Similarly; developing membrane processes require partial compression of the flue gas (to get reasonable mass fluxes across the membrane) and subsequent compression of the captured carbon dioxide to reach pipeline pressures.  The proposed separation process is centered on the removal of CO2 from a flue gas stream by capturing it in the form of a clathrate-hydrate.  Pumping of the hydrate-in-water slurry to high pressures together with subsequent decomposition (melting) of the hydrate will yield gas at elevated pressures; requiring only modest compression to reach pipeline pressures.  This scheme should be more cost effective than direct compression of the carbon dioxide gas since much of the PV work associated with compressing a gas is avoided. 

 

Project Accomplishments:

[NOTE: Updated information not available beginning 2004]

 

 

 

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