Patent SG-11201805873X-A (SG)
Title: Nitrogen based hydrogen sulfide scavengers and method of use thereof
Inventor: SUBRAMANIYAM MAHESH
IPC: C10L3/10
Filed: 2016-12-23
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11111111011110111010101111101011111011101110111111111101111011111111101111011111 International Bureau .. .... ..Yejd .... ...,,, (10) International Publication Number (43) International Publication Date WO 2017/118894 Al 13 July 2017 (13.07.2017) WI P0 I P CT (51) International Patent Classification: HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, BOLD 53/52 (2006.01) C09K 8/532 (2006.01) KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, ClOG 21/20 (2006.01) C1OL 3/10 (2006.01) MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (21) International Application Number: RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, PCT/IB2016/057994 TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, (22) International Filing Date: ZA, ZM, ZW. 23 December 2016 (23.12.2016) (84) Designated States (unless otherwise indicated, for every (25) Filing Language: English kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (26) Publication Language: English TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (30) Priority Data: TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 201621000847 8 January 2016 (08.01.2016) IN 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, (71) Applicant: DORF KETAL CHEMICALS (INDIA) SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, PRIVATE LIMITED [IN/IN]; Dorf Ketal Tower, GW, KM, ML, MR, NE, SN, TD, TG). D'Monte Street, Orlem, Malad (W), MUMBAI — 400064, Maharashtra, INDIA, Mumbai 400064 (IN). Declarations under Rule 4.17: as to the identity of the inventor (Rule 4.17(1)) (72) Inventor: SUBRAMANIYAM, Mahesh; Dorf Ketal Tower, D'Monte Street, Orlem, Malad (W), MUMBAI — — as to applicant's entitlement to apply for and be granted a 400064, Maharashtra, INDIA, Mumbai 400064 (IN). patent (Rule 4.17(ii)) (74) Agent: MEHTA, Ramesh Kumar; Mehta & Mehta Asso- — as to the applicant's entitlement to claim the priority of the = ciates, Mehta House, B-474, Sushant Lok-I, Sector 27, earlier application (Rule 4.17(iii)) 122 002, NCR, Gurgaon 122002 = GURGAON — (IN). — of inventorship (Rule 4.17(iv)) Designated (81) States (unless otherwise indicated, for every Published: — kind of national protection available): AE, AG, AL, AM, — with international search report (Art. 21(3)) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, = = = = = = = = = 1-1 71- (54) Title: NITROGEN BASED HYDROGEN SULFIDE SCAVENGERS AND METHOD OF USE THEREOF 01 Pt (57) : The present invention relates to a hydrogen sulphide scavenging additive composition for scavenging hydrogen GC sulphide including sulfur containing compounds and mercaptans, particularly for scavenging hydrogen sulfide in hydrocarbons, Il wherein the additive composition comprises substantially reduced amount of nitrogen based hydrogen sulfide scavengers, and is also 1-1 ---- required in substantially reduced amount, and wherein the additive composition scavenges the sulfur containing compounds not only IN at room temperature, but also at higher temperatures, and comprises at least a combination of: (A) at least one nitrogen based hydro - gen sulfide scavenger; and (B) at least one aliphatic tertiary amine, wherein the nitrogen based hydrogen sulfide scavenger comprises N triazine based hydrogen sulfide scavenger. In one embodiment, it also relates to a method for scavenging hydrogen sulfide in hydro - O carbons, and in another embodiment it relates to a method of using an additive composition of the present invention for scavenging ,1 . hydrogen sulfide in hydrocarbons. In yet another embodiment, it relates to a composition comprising (i) a hydrocarbon and (ii) a by - .,- drogen sulfide scavenging additive composition for scavenging hydrogen sulfide in hydrocarbons.