RPSEA CO2 Operations and Opportunities to Advance Technology for Mature Fields Forum
Southwest Research Institute
Novel Concepts for the Compression
and Transport of
Large Volumes of CO2
J. Jeffrey Moore, Ph.D.
Southwest Research Institute
Compression Technology Options for IGCC Waste
Carbon Dioxide Streams
10
100
1000
10000
0
50
100
150
200
250
300
350
400
Enthalpy (Btu/lbm)
Pressure (psia)
Conventional
"Option A"
Conventional
"Option B"
Isothermal
"Option C.1"
Shock Compress.
"Option D"
Liquid Cryo-Pump
"Option E"
Semi-
Isothermal
"Option C.3"
High Ratio
Cmpression
RPSEA CO2 Operations and Opportunities to Advance Technology for Mature Fields Forum
Southwest Research Institute
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RPSEA CO2 Operations and Opportunities to Advance Technology for Mature Fields Forum
Southwest Research Institute
Project Motivation
• CO2 capture of coal fired power plants has a
significant compression penalty
– As high as 8 to 12%.
• Final pressure around 1,500 to 2,200 psia for
pipeline transport or re-injection (EOR, ground
storage, etc.).
• Based on a 400 MW IGCC plant, the typical flow
rate is ~600,000 to 700,000 lbm/hr.
• Project goal: Double-digit reduction of
compression power for CO2 capture
• Many thermodynamic processes studied.
• Currently in demonstration phase as part of a
$1.5 million DOE project
RPSEA CO2 Operations and Opportunities to Advance Technology for Mature Fields Forum
Southwest Research Institute
General Comments
• The type of compressor is highly dependent on the
starting pressure (15 or 300 psia).
– Approximately 20 to 500 psia for CO2 scrubbing of the fuel
stream (for IGCC).
– Approximately 15 psia from CT or boiler exhaust scrubber.
• High pressure ratio results in s