Method of removing mercury from exhaust gases of coal fired...

Gas separation: processes – Electric or electrostatic field – With addition of solid – gas – or vapor

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C095S063000, C095S068000, C095S070000, C095S107000, C095S134000, C095S148000, C096S055000, C096S074000, C096S134000, C096S143000, C096S150000

Reexamination Certificate

active

07048779

ABSTRACT:
A method of removing mercury from a coal fired power plant exhaust gas includes passing the exhaust gas through a bulk particle filter to remove coarse particles, introducing powdered activated carbon into the exhaust gas downstream of the bulk particle filter, introducing mercury laden powdered activated carbon containing exhaust gas into a fine particle filter to separate the mercury containing powdered activated carbon from the exhaust gas, separating the powdered activated carbon from the mercury at an elevated temperature in an inert gas environment and recirculating the separating powdered activated carbon into the exhaust gas upstream from the fine particle filter. The desorption is preferably effected at a temperature of about 300 to 500° C. for about 5 to 60 minutes. The method is adapted to remove mercury which may be on the order of about 1 to 1000 ppm to 1 to 10 micrograms/cubic meter of exhaust gas. Corresponding apparatus is provided.

REFERENCES:
patent: 3485014 (1969-12-01), Atsukawa et al.
patent: 4006066 (1977-02-01), Sparwald
patent: 4889498 (1989-12-01), Mizuta
patent: 4889698 (1989-12-01), Moller et al.
patent: 4956162 (1990-09-01), Smith et al.
patent: 5024681 (1991-06-01), Chang
patent: 5069689 (1991-12-01), Goldhaar
patent: 5403365 (1995-04-01), Merriam et al.
patent: 5409522 (1995-04-01), Durham
patent: 5419884 (1995-05-01), Weekman et al.
patent: 5439508 (1995-08-01), Mayer-Schwinning et al.
patent: 5505766 (1996-04-01), Chang
patent: 5569436 (1996-10-01), Lerner
patent: 5672323 (1997-09-01), Bhat
patent: 5723099 (1998-03-01), Steinke et al.
patent: 5822352 (1998-10-01), Mizutani et al.
patent: 5854173 (1998-12-01), Chang et al.
patent: 6027551 (2000-02-01), Hwang et al.
patent: 6097011 (2000-08-01), Gadkaree et al.
patent: 6103205 (2000-08-01), Wojtowicz et al.
patent: 6284199 (2001-09-01), Downs et al.
patent: 6346936 (2002-02-01), Murayama et al.
patent: 6506235 (2003-01-01), Gertner-Hansen
patent: 6521021 (2003-02-01), Pennline et al.
patent: 6558642 (2003-05-01), El-Shoubary et al.
patent: 6582497 (2003-06-01), Maes et al.
patent: 6589318 (2003-07-01), El-Shoubary et al.
patent: 6719828 (2004-04-01), Lovell et al.
patent: 6818043 (2004-11-01), Chang et al.
patent: 2002/0033097 (2002-03-01), El-Shoubary et al.
patent: 2002/0124725 (2002-09-01), Chang et al.
patent: 2003/0206843 (2003-11-01), Nelson
patent: 2004/0003716 (2004-01-01), Nelson
patent: 2005/0132880 (2005-06-01), Chang

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of removing mercury from exhaust gases of coal fired... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of removing mercury from exhaust gases of coal fired..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of removing mercury from exhaust gases of coal fired... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3607592

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.