Patent SG-11201407510U-A (SG)
Title: Process, method, and system for removing heavy metals from fluids
Inventor: O'REAR DENNIS JOHN
IPC: C10G29/20
Filed: 2013-05-16
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 21 November 2013 (21.11.2013) WIPOIPCT (10) International Publication Number WO 2013/173593 A1 (51) International Patent Classification: C10G 29/06 (2006.01) C10G 29/20 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/041371 16 May 2013 (16.05.2013) English English (30) Priority Data: 61/647,703 16 May 2012 (16.05.2012) US (71) Applicant: CHEVRON U.S.A. INC. [US/US]; P.O. Box 6006, San Ramon, California 94583-0806 (US). (72) Inventors: O'REAR, Dennis John; 6001 Bollinger Canyon Road, San Ramon, California 94583 (US). COOPER, Russell Evan; 6001 Bollinger Canyon Road, San Ramon, California 94583 (US). YEAN, Sujin; 6001 Bollinger Canyon Road, San Ramon, California 94583 (US). ROBY, Stephen Harold; 6001 Bollinger Canyon Road, San Ramon, California 94583 (US). MOGAD- DEDI, Hosna; 6001 Bollinger Canyon Road, San Ramon, California 94583 (US). QUINTANA, Manuel Eduardo; 6001 Bollinger Canyon Road, San Ramon, California 94583 (US). ROVNER, Jerry Max; 6001 Bollinger Canyon Road, San Ramon, California 94583 (US). (74) Agents: PHAM, Hanh T. et al.; Chevron Corporation, Law Department, P.O. Box 6006, San Ramon, California 94583-0806 (US). (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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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. (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, 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, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3)) o\ m i> i-H cn i-H o CJ o & (54) Title: PROCESS, METHOD, AND SYSTEM FOR REMOVING HEAVY METALS FROM FLUIDS (57) Abstract: Trace amount levels of heavy metals such as mercury in crude oil are reduced by contacting the crude oil with a suffi - cient amount of reducing a agent to convert at least a portion of the non-volatile mercury into a volatile form of mercury, which can be subsequently removed by any of stripping, scrubbing, adsorption, and combinations thereof. In one embodiment, at least 50% of the mercury removed. In is another embodiment, the removal rate is at least 99%. In one embodiment, the reducing agent selected is from sulfur compounds containing at least one sulfur atom having an oxidation state less than +6; ferrous compounds; stannous compounds; oxalates; cuprous compounds; organic acids which decompose to form C0 2 and or / H 2 upon heating; hydroxylamine compounds; hydrazine compounds; sodium borohydride; diisobutylaluminium hydride; thiourea; transition metal halides; and mix­ tures thereof.