PROPENE RECOVERY BY SCRUBBING WITH A SOLVENT/WATER MIXTURE

    公开(公告)号:SG11201909056UA

    公开(公告)日:2019-11-28

    申请号:SG11201909056U

    申请日:2018-04-13

    Applicant: BASF SE

    Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 01 November 2018 (01.11.2018) WIPO I PCT omit VIII °nolo ommomi o1111 Il 1111111 ow (10) International Publication Number WO 2018/197234 Al (51) International Patent Classification: C07D 301/12 (2006.01) (21) International Application Number: PCT/EP2018/059516 (22) International Filing Date: 13 April 2018 (13.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 17167780.0 24 April 2017 (24.04.2017) EP (71) Applicant: BASF SE [DE/DE]; Carl-Bosch-Strasse 38, 67056 Ludwigshafen am Rhein (DE). (72) Inventors: WOERZ, Nicolai Tonio; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). MUELLER, Ulrich; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). PARVULESCU, Andrei-Nicolae; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). RIEDEL, Dominic; Carl- Bosch-Strasse 38, 67056 Ludwigshafen (DE). KRAMP, Marvin; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). URBANCZYK, Daniel; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). WEGERLE, Ulrike; St.-Boni- fatius-Str. 11, 67550 Worms (DE). MUELLER, Christian; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). MET- ZEN, Bernd; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). WEBER, Markus; Carl-Bosch-Strasse 38, 67056 Ludwigshafen (DE). (74) Agent: ALTMANN, Andreas; Herzog Fiesser & Partner Patentanwalte PartG mbB, Isartorplatz 1, 80331 Muenchen (DE). = (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, JO, 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). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3)) = (54) Title: PROPENE RECOVERY BY SCRUBBING WITH A SOLVENT/WATER MIXTURE (57) : The invention relates to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, propane, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided m (1) mto an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propane, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propene, propane, propylene oxide, water, and the organic solvent; (iv) separating propene and propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream (S1) which is enriched in propene and propane compared to the effluent stream subjected to distillation conditions, and a liquid bottoms stream (S2) which is enriched in propylene oxide, water and organic solvent compared to the effluent stream subjected to distillation conditions; (v) separating propane from the stream (S1) in a separation zone, comprising subjecting the stream (S1) to washing conditions in a scrubber, wherein a solvent mixture comprising organic solvent and water is added as entraining agent, obtaining a bottoms stream (S3), which comprises organic solvent, water and at least 70 weight-% of the propene comprised in (S1); and a gaseous top stream (S4), which comprises at least 5 weight-% of the propane comprised in stream (S1). N 00 O C

    Recuperación de propeno por medio de depuración con una mezcla de agua y disolvente

    公开(公告)号:ES2884054T3

    公开(公告)日:2021-12-10

    申请号:ES18719488

    申请日:2018-04-13

    Applicant: BASF SE

    Abstract: Un proceso para preparar óxido de propileno, que comprende (i) proporcionar una corriente que comprende propeno, propano, peróxido de hidrógeno o una fuente de peróxido de hidrógeno, agua y un disolvente orgánico; (ii) pasar la corriente de alimentación líquida proporcionada en (i) a una zona de epoxidación que comprende un catalizador de epoxidación que comprende una zeolita de titanio y someter la corriente de alimentación líquida a las condiciones de reacción de epoxidación en la zona de epoxidación, obteniendo una mezcla de reacción que comprende propeno, propano, óxido de propileno, agua y disolvente orgánico; (iii) eliminar una corriente efluente de la zona de epoxidación, la corriente efluente comprende propeno, propano, óxido de propileno, agua y el disolvente orgánico; (iv) separar propeno y propano de la corriente efluente por destilación, que comprende someter la corriente efluente a condiciones de destilación en una unidad de destilación, obtener una corriente gaseosa S1 que está enriquecida en propeno y propano en comparación con la corriente efluente sometida a condiciones de destilación, y una corriente de fondo líquida S2 que está enriquecida en óxido de propileno, agua y disolvente orgánico en comparación con la corriente efluente sometida a condiciones de destilación; (v) separar el propano de la corriente S1 en una zona de separación, que comprende someter la corriente S1 a condiciones de lavado en un depurador, donde se añade una mezcla de disolventes que comprende disolvente orgánico y agua como agente de arrastre, obteniendo una corriente de fondo S3, que comprende disolvente orgánico, agua y al menos 70% en peso del propeno comprendido en S1; y una corriente superior gaseosa S4, que comprende al menos 5% en peso del propano comprendido en la corriente S1.

    A PROCESS FOR PREPARING PROPYLENE OXIDE

    公开(公告)号:ZA201900949B

    公开(公告)日:2021-06-30

    申请号:ZA201900949

    申请日:2019-02-14

    Abstract: The present invention is related to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, water, organic solvent, and propene; (iv) separating propene from the effluent stream by distillation, comprising (iv.1) subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous top stream S0 enriched in propene compared to the effluent stream subjected to distillation conditions, and a liquid bottoms stream S01 enriched in propylene oxide, water and organic solvent compared to the effluent stream subjected to distillation conditions; (iv.2) returning a condensed portion of the stream S0 to an upper part of the distillation unit.

    PROPENE RECOVERY BY SCRUBBING WITH A SOLVENT/WATER MIXTURE

    公开(公告)号:ZA201907648B

    公开(公告)日:2022-03-30

    申请号:ZA201907648

    申请日:2019-11-19

    Applicant: BASF SE

    Abstract: The invention relates to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, propane, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propane, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propene, propane, propylene oxide, water, and the organic solvent; (iv) separating propene and propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream (S1) which is enriched in propene and propane compared to the effluent stream subjected to distillation conditions, and a liquid bottoms stream (S2) which is enriched in propylene oxide, water and organic solvent compared to the effluent stream subjected to distillation conditions; (v) separating propane from the stream (S1) in a separation zone, comprising subjecting the stream (S1) to washing conditions in a scrubber, wherein a solvent mixture comprising organic solvent and water is added as entraining agent, obtaining a bottoms stream (S3), which comprises organic solvent, water and at least 70 weight-% of the propene comprised in (S1); and a gaseous top stream (S4), which comprises at least 5 weight-% of the propane comprised in stream (S1).

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