Patent SG-11201901256X-A (SG)
Title: Integrated wet scrubbing system
Inventor: MCCLELLAND KENNETH JAMES
IPC: B03C5/00
Filed: 2016-08-31
Abstract: Solids to Landfill To 26 To 26 49 41 42 44 61 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 22 February 2018 (22.02.2018) WIP0 I PCT omit VIII °nolo III ll moiollm VIII Imo oimIE (10) International Publication Number WO 2018/032081 Al (51) International Patent Classification: BOlD 53/92 (2006.01) BOlD 53/14 (2006.01) BOlD 47/00 (2006.01) B03C 5/00 (2006.01) (21) International Application Number: PCT/CA2016/000223 (22) International Filing Date: 31 August 2016 (31.08.2016) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/376,619 18 August 2016 (18.08.2016) US (71) Applicant: PACIFIC GREEN TECHNOLOGIES INC. [US/US]; 5205 Prospect Road, Suite 135-226, San Jose, CA 95129 (US). (72) Inventor: McCLELLAND, Kenneth James; 3820 Westridge Avenue, West Vancouver, British Columbia V7V 3H5 (CA). (74) Agent: BURRI, Stephen R.; c/o Island IP Law, 43 Mach- leary Street, Nanaimo, British Columbia V9R 2G3 (CA). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (54) Title: INTEGRATED WET SCRUBBING SYSTEM FIG. 5 Contaminated 1 2 22 GCC 4 20 Solids 21 HE Gas Stream Removal 7 To 25 24 6 ESP ► HE/Stack GAC To 22 18 47 \ 41 23 To 26 43 Wet Water Scrubber 45 From 66 WESP Conditioned Slurry 47 Alkaline Reagent Solids to Landfill Effluent Bleed co O O co O O (57) : The present invention relates to an advanced system for the removal of air pollutants from combustion and non-com- bustion processes that generate air pollutants that are regulated by environmental agencies. The pollutants include, but are not limited to, particulate matter; acid gases including sulphur dioxide, hydrogen chloride and hydrogen fluoride; metals such as mercury, dioxins, VOCs and reagents such as ammonia. The system collects and processes the polluted gas stream through two forms of wet method scrubbing technology. The gas is first passed through a wet scrubbing reactor capable of complete interaction between the gas and the selected liquid scrubbing reagent at one or more interfaces. The scrubbing medium is selected for its reactivity with the pollutants targeted in the process, its cost and impact on the environment. From the exit of the scrubbing reactor the gas is directed through a wet electrostatic precipitator to remove the remaining targeted pollutants to very high removal efficiency. [Continued on next page] WO 2018/032081 Al MIDEDIMOMOIDEIREEMODEIDOIDENHOIRVOIMIE (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))