Device for separating CO2 from fossil-fueled power plant emissions

Patent · 23 April 2002

OSTI ID:874359

Burchell, Timothy D ^[1]; Judkins, Roddie R ^[2]; Wilson, Kirk A ^[2]

---

1. Oak Ridge, TN
2. Knoxville, TN

A gas separation device includes an inner conduit, and a concentric outer conduit. An electrically conductive filter media, preferably a carbon fiber composite molecular sieve, is provided in the annular space between the inner conduit and the outer conduit. Gas flows through the inner conduit and the annular space between the inner conduit and the outer conduit, so as to contact the filter media. The filter media preferentially adsorbs at least one constituent of the gas stream. The filter media is regenerated by causing an electric current to flow through the filter media. The inner conduit and outer conduit are preferably electrically conductive whereby the regeneration of the filter media can be electrically stimulated. The invention is particularly useful for the removal of CO.sub.2 from the exhaust gases of fossil-fueled power plants.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-00OR22725
• Assignee: UT-Battelle, LLC (Oak Ridge, TN)
• Patent Number(s): 6,375,716
• OSTI ID: 874359
• Country of Publication: United States
• Language: English

Related Subjects

/95/96/
adsorbs
annular
carbon
carbon fiber
causing
co2
composite
concentric
conductive
conduit
constituent
contact
cosub2
current
device
electric
electric current
electrically
electrically conductive
emissions
exhaust
fiber
filter
filter media
flow
flows
fossil-fueled
gas
gas flow
gas stream
gases
inner
media
molecular
outer
plant
plants
power
power plant
preferentially
provided
regenerated
regeneration
removal
separating
separation
separation device
sieve
space
stimulated
stream
useful