Patent SG-11201803907Q-A (SG)
Title: A process for recovering hydrocarbons in a solution polymerisation process
Inventor: AL-HAJ ALI MOHAMMAD
IPC: C08F2/06
Filed: 2016-12-21
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau (43) International Publication Date .... ..sr ,„„..) 29 June 2017(29.06.2017) WIPO I PCT (10) WO International 111111111111311111111111111111111111111111111111111111111111111111111311111111111111111 2017/108963 Publication Al Number (51) International Patent Classification: Neufelden C08F 2/06 (2006.01) C08J 11/02 (2006.01) 04300 Tuusula CO8F 6/00 (2006.01) CO8F 6/12 (2006.01) (74) Agent: KADOR (21) International Application Number: Munich (DE). PCT/EP2016/082199 (81) Designated (22) International Filing Date: kind of national 21 December 2016 (21.12.2016) AO, AT, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, (25) Filing Language: English DO, DZ, (26) Publication Language: English HN, HR, KP, KR, (30) Priority Data: MD, ME, 15201462.7 21 December 2015 (21.12.2015) EP NI, NO, 16179643.8 15 July 2016 (15.07.2016) EP RU, RW, (71) Applicant: BOREALIS AG [AT/AT]; Wagramer Strasse TH, TJ, 17-19, 1220 Vienna (AT). ZA, ZM, (72) Inventors: AL-HAJ ALI, Mohammad; Malmin Kaup- (84) Designated patie 4a A2, 00700 Helsinki (FI). ERIKSSON, Erik; kind of regional (AT). ZITTING, Samuli; Vanamonkuja 7, (FI). & PARTNER; Corneliusstr. 15, 80469 States (unless otherwise indicated, for every protection available): AE, AG, AL, AM, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZW. States (unless otherwise indicated, for every protection available): ARIPO (BW, GH, GM, KE, Tradgardsvagen 17, 444 54 Stenungsund (SE). MATHIV- ANAN, Guhan; Rosenbauerstrasse 13, 4020 Linz (AT). TZ, UG, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, SLEIJSTER, Henry; Lindestraat 4A, 6101ES Echt TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (NL). DK, EE, VIJAY, Sameer; Lastenstrasse 13/233, 4020 Linz (AT). 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, WURNITSCH, Christof; LinzerstraBe 15, 4120 [Continued on next page] (54) Title: A PROCESS FOR RECOVERING HYDROCARBONS IN A SOLUTION POLYMERISATION PROCESS C33 - 36 39 12 7 _ 23 19 24 36 ( 3 4 20 11 r 22 25 5 26 , 6 7 30 34 ---k- 11 Figure 1 32 33 11 .4! (57) : The present invention relates to a process for producing a polymer composition comprising the steps of: (A) polymer - M ising, in a first polymerisation reactor in a first solvent, - a first olefm monomer having two or more carbon atoms, - in the presence .{: of a first polymerisation catalyst for producing a first solution comprising a first polymer of the first olefin monomer and the first O\ solvent; (B) withdrawing a first stream of the first solution from the first polymerisation reactor; (C) passing the first stream of the GI first solution into a first separator wherein a first liquid phase comprising the polymer and a first vapour phase coexist; (D) with - ' 1111 drawing a first vapour stream and a first concentrated solution stream comprising the polymer from the first separator; (E) passing at 1-1 ---. least a part of the first vapour stream to a first fractionator; (F) withdrawing a first overhead stream and a first bottom stream from IN the first fractionator; (G) recovering at least a part of the first overhead stream as a first recycle stream and passing it to the first poly - o merisation reactor; (H) passing the first concentrated solution stream from the first separator (4) to a second separator (8) wherein a ei second liquid phase comprising the polymer and a second vapour phase coexist; (I) withdrawing a second vapour stream and a 0 second concentrated solution stream comprising the polymer from the second separator; passing at least a part of the second va - (J) pour stream to a second fractionator; (K) withdrawing a second overhead stream [Continued on next page] WO 2017/108963 Al MIONIMOREMIMMEHEDIDIENCHIMOOMEHOHE SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ ' — before the expiration of the time limit for amending the GW, KM, ML, MR, NE, SN, TD, TG). claims and to be republished in the event of receipt of Published: amendments (Rule 48.2(h)) — with international search report (Art. 21(3)) and a second bottom stream from the second fractionator; (L) recovering at least a part of the second overhead stream as a second recycle stream and passing it to the first polymerisation reactor; (M) passing the second concentrated solution stream from the second separator to a third separator wherein a third liquid phase comprising the polymer and a third vapour phase coexist; char- acterised in that the mass flow rate of the first recycle stream is at least 80 % of the mass flow rate of the first vapour stream and the mass flow rate of the second recycle stream is at least 70 % of the mass flow rate of the second vapour stream.