Patent SG-11201809766Q-A (SG)
Title: Cleaning coke deposits from process equipment
Inventor: MCGAHEE VINCENT DEPAUL
IPC: F28G1/12
Filed: 2017-04-26
Abstract: 110 FIG. 1 130 120 130 Lri 122 Uri 122 122 140 130 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 02 November 2017 (02.11.2017) WIP0 I PCT omit VIII Hot 0 HE 101101100 mil Imo oimIE (10) International Publication Number WO 2017/189648 Al (51) International Patent Classification: B08B 9/055 (2006.01) F28G 1/12 (2006.01) ClOG 75/00 (2006.01) (21) International Application Number: PCT/US2017/029514 (22) International Filing Date: 26 April 2017 (26.04.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/142,792 29 April 2016 (29.04.2016) US (71) Applicant: CHEVRON PHILLIPS CHEMICAL COM- PANY LP [US/US]; 10001 Six Pines Drive, The Wood- lands, Texas 77380 (US). (72) Inventor: MCGAHEE, Vincent dePaul; 402 Twin Tim- bers Lane, Kemah, Texas 77565 (US). (74) Agent: RHODES, Monte; Chevron Phillips Chemical Company LP, 10001 Six Pines Drive, The Woodlands, Texas 77380 (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, DJ, 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, KH, KN, KP, KR, KW, 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. (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). (54) Title: CLEANING COKE DEPOSITS FROM PROCESS EQUIPMENT (57) : A method for cleaning a coke deposit from an internal surface of a process equipment, comprising removing at least a portion of the coke deposit from the internal surface using a flexible pig comprising a plurality of bristles, without damaging a metal protective layer of the internal surface of the process equipment. A flexible pig (100) for cleaning a coke deposit from an internal surface of a process equipment without damaging a metal protective layer of the internal surface, comprising a flexible body (110) formed of a polymeric material (130), and a plurality of bristles (120) partially encapsulated by the polymeric material of the flexible body. [Continued on next page] WO 2017/189648 Al MIDEDIMOMMIDIRMEMOMMOHOHNIMMIMOVOIS Published: with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))