Title:
エチレン系重合反応中に使用される溶媒を再循環するための方法およびそのためのシステム
Document Type and Number:
Japanese Patent JP2014507548
Kind Code:
A
Abstract:
A process for recycling solvent used in an ethylene-based polymerization comprising: passing a solvent stream which has been used in a first ethylene-based solvent polymerization reactor through an online purification bed to produce a recycle solvent stream, wherein the solvent stream prior to being passed through the online purification bed comprises solvent, ethylene, hydrogen, polymerization by-products and optionally comonomer; and passing the recycle solvent stream from the online purification bed to a second ethylene-based solvent polymerization reactor; wherein the second ethylene-based solvent polymerization reactor exhibits a catalyst efficiency dip of less than or equal to 20% for no longer than a forty-eight hour period following a swap of the online purification bed to a regenerated purification bed which contains an adsorbent having low reactivity to alkenes is provided.
Inventors:
Hyde, Stacy
Castelluccio, Anthony, Jay.
Gemoets, Frederick, Yi.
Castelluccio, Anthony, Jay.
Gemoets, Frederick, Yi.
Application Number:
JP2013557731A
Publication Date:
March 27, 2014
Filing Date:
February 16, 2012
Export Citation:
Assignee:
Dow Global Technologies LLC
International Classes:
C08F10/02; C08F2/06
Domestic Patent References:
| JPS63314209A | 1988-12-22 | |||
| JP2002253959A | 2002-09-10 | |||
| JP2010095494A | 2010-04-30 | |||
| JP2000513754A | 2000-10-17 |
Foreign References:
| US3330778A | 1967-07-11 |
Other References:
JPN6015046710; 'ゼオライト・モレキュラーシーブと修飾型活性アルミナのハイブリッド吸着剤' ゼオライト Ｖｏｌ．２７， Ｎｏ．３, 20110910, ｐ６７-７３, ゼオライト学会
Attorney, Agent or Firm:
Hiroshi Kobayashi
Norio Omori
Yasuhito Suzuki
Norio Omori
Yasuhito Suzuki