B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
23/349
B01D 53/34 (2006.01) B01D 53/50 (2006.01) C01B 17/00 (2006.01)
Patent
CA 1133236
ABSTRACT OF THE DISCLOSURE There is disclosed a fly ash utilization system and process for the removal of sulfur dioxide from the flue gas of coal fired boilers. The prin- ciple features of the invention are the maintaining of high ionic concentra- tion in a closed loop, water balanced system which is operated at a low pH, i.e. less than 4 and preferably less than 3. The ionic concentration of the scrubber slurry is maintained at at least 5,000 parts per million of alkali metal cations, preferably over 10,000 parts per million, at least a sub- stantial portion of which has been leached from fly ash. The ionic con- centration of the scrubber slurry is maintained at a high level by either providing small diked areas in a waste pond for settling of undissolved solids wherein the returned supernatant has a high ionic concentration, or a thickener and filter system may be used to recover high ionic concentra- tion supernatant for return to the scrubber. A principal advantage of the system is that there is a substantially reduced liquid-to-gas ratio required for scrubbing SO2, with substantial savings in pumping and power requirements for the system.
343324
Peabody Process Systems Inc.
Smart & Biggar
LandOfFree
Flue gas scrubbing process using fly ash alkali does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flue gas scrubbing process using fly ash alkali, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flue gas scrubbing process using fly ash alkali will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-60390