公开(公告)号：US20180327522A1

公开(公告)日：2018-11-15

申请号：US15776089

申请日：2016-12-21

Applicant: Borealis AG

Inventor： Mohammad Al-Haj Ali ,  Erik Eriksson ,  Sameer Vijay ,  Guhan Mathivanan ,  Jukka Rasanen ,  Henry Sleijster ,  Christof Wurnitsch ,  Samuli Zitting

IPC: C08F6/12 ,  C08F6/00 ,  B01J8/00

CPC classification number: C08F6/12 ,  B01J8/0015 ,  C08F6/003 ,  C08L23/02

Abstract: A process for withdrawing polyolefins from a solution polymerization reactor comprising: providing—a low pressure separator 1,—a washing column 2,—a withdrawal line 3 connecting the upper part of the low pressure separator and the washing column—a condenser 4,—a condenser-line 5 connecting the top part of the washing column and the condenser—optionally a recycle solvent vessel 6—optionally a solvent-vessel-line 7 connecting the condenser with the recycle solvent vessel—a reflux line 8 connecting the condenser and the upper part of the washing column or connecting the recycle solvent vessel and the upper part of the washing column—optionally a circulation line 9 fluidly connected to the middle part of the washing column and recycling line 10—a recycling line 10 connecting the bottom of the washing column and the upper part of the low pressure separator,—optionally a wash recycle heater 11 embedded into the recycling line 10—optionally a heater 12 embedded into the circulation line 9 (a) continuously withdrawing a liquid solution stream from the solution polymerization reactor and passing said liquid solution stream into the first low pressure separator 1; (b) withdrawing a first vapour stream and a first liquid stream from the low pressure separator and passing said first vapour stream via withdrawal line 3 into the washing column (c) withdrawing a second vapour stream from the washing column and feeding it via condenser line 5 to condenser 4 (d) cooling the second vapour stream in condenser 4 so that a part of the second vapour stream condenses thereby producing a condensed second vapour stream and an uncondensed second vapour stream (e) passing the condensed second vapour stream to the upper part of the washing column via reflux line 8 (f) withdrawing a second liquid stream from the washing column and passing at least a part of the second liquid stream to the low pressure separator via recyling line 10 (g) recovering heat from the condenser

公开(公告)号：US09926241B2

公开(公告)日：2018-03-27

申请号：US14353619

申请日：2012-10-22

Applicant: Borealis AG

Inventor： Kristof Weyne ,  Guhan Mathivanan

IPC: C07C5/333 ,  B01J8/04 ,  B01J8/02 ,  B01J23/26

CPC classification number: C07C5/3332 ,  B01J8/025 ,  B01J8/0285 ,  B01J8/0292 ,  B01J8/0419 ,  B01J8/0496 ,  B01J23/26 ,  B01J2208/00522 ,  C07C5/3335 ,  C07C2521/04 ,  C07C2523/26 ,  Y02P20/52 ,  C07C11/06

Abstract: A catalyst bed system, and a dehydrogenation process using the same, including a horizontal catalyst bed having a mixture of at least one catalytic material and at least one first inert material, a predetermined volume of at least one second inert material arranged upstream of the catalyst bed, wherein the volume of the reactor above the catalyst bed system is not filled by any solid material (empty space). The volume of the second inert material and the volume of the reactor above the second inert material (empty space) is between 0.04 and 0.73, preferably between 0.06 and 0.3, most preferably between 0.09 and 0.2.

公开(公告)号：US20140296606A1

公开(公告)日：2014-10-02

申请号：US14353619

申请日：2012-10-25

Applicant: Borealis AG

Inventor： Kristof Weyne ,  Guhan Mathivanan

IPC: C07C5/333

CPC classification number: C07C5/3332 ,  B01J8/025 ,  B01J8/0285 ,  B01J8/0292 ,  B01J8/0419 ,  B01J8/0496 ,  B01J23/26 ,  B01J2208/00522 ,  C07C5/3335 ,  C07C2521/04 ,  C07C2523/26 ,  Y02P20/52 ,  C07C11/06

Abstract: The present invention relates to a catalyst bed system including a horizontal catalyst bed having a mixture of at least one catalytic material and at least one first inert material, a predetermined volume of at least one second inert material arranged upstream of the catalyst bed, wherein the volume of the reactor above the catalyst bed system is not filled by any solid material (empty space). The volume of the second inert material and the volume of the reactor above the second inert material (empty space) is between 0.04 and 0.73, preferably between 0.06 and 0.3, most preferably between 0.09 and 0.2. The present invention relates also to a dehydrogenation process using this catalyst bed system.

Abstract translation: 本发明涉及一种催化剂床系统，其包括具有至少一种催化材料和至少一种第一惰性材料的混合物的水平催化剂床，布置在催化剂床上游的预定体积的至少一种第二惰性材料，其中 催化剂床系统上方的反应器的体积不被任何固体材料（空的空间）填充。 第二惰性材料的体积和第二惰性材料上方的反应器体积（空白空间）为0.04-0.73，优选为0.06和0.3之间，最优选在0.09和0.2之间。 本发明还涉及使用该催化剂床系统的脱氢方法。