WO2007075615A3 - Monomer recovery by returning column overhead liquid to the reactor - Google Patents

Monomer recovery by returning column overhead liquid to the reactor Download PDF

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Publication number
WO2007075615A3
WO2007075615A3 PCT/US2006/048323 US2006048323W WO2007075615A3 WO 2007075615 A3 WO2007075615 A3 WO 2007075615A3 US 2006048323 W US2006048323 W US 2006048323W WO 2007075615 A3 WO2007075615 A3 WO 2007075615A3
Authority
WO
WIPO (PCT)
Prior art keywords
monomer
reactor
diluent
fractionation
monomer recovery
Prior art date
Application number
PCT/US2006/048323
Other languages
French (fr)
Other versions
WO2007075615A2 (en
Inventor
John H Tait
Robert S Murphy
Michael A Watts
Anurag Gupta
Original Assignee
Chevron Phillips Chemical Co
John H Tait
Robert S Murphy
Michael A Watts
Anurag Gupta
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chevron Phillips Chemical Co, John H Tait, Robert S Murphy, Michael A Watts, Anurag Gupta filed Critical Chevron Phillips Chemical Co
Priority to BRPI0620392-2A priority Critical patent/BRPI0620392A2/en
Priority to CA002633647A priority patent/CA2633647A1/en
Priority to EP06847774A priority patent/EP1976890A2/en
Publication of WO2007075615A2 publication Critical patent/WO2007075615A2/en
Publication of WO2007075615A3 publication Critical patent/WO2007075615A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/003—Removal of residual monomers by physical means from polymer solutions, suspensions, dispersions or emulsions without recovery of the polymer therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1812—Tubular reactors
    • B01J19/1837—Loop-type reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00265—Part of all of the reactants being heated or cooled outside the reactor while recycling
    • B01J2208/00274—Part of all of the reactants being heated or cooled outside the reactor while recycling involving reactant vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00743—Feeding or discharging of solids
    • B01J2208/00761—Discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00002—Chemical plants
    • B01J2219/00004—Scale aspects
    • B01J2219/00006—Large-scale industrial plants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/92—Apparatus for use in addition polymerization processes

Abstract

A polyolefin production system, comprising a polymerization reactor (such as a polyethylene loop slurry reactor) and a fractionation system that receives reactor effluent processed in a diluent/monomer recovery system for recycle to the reactor and to suppliers. A conduit diverts a portion of a reflux flow comprising monomer, such as ethylene, from within the fractionation system to the polymerization reactor, providing for less venting of monomer, such as ethylene, to the supplier. Accordingly, monomer yield is advantageously increased, as the monomer returned to the reactor displaces monomer feedstock to the reactor. The reflux flow may originate from a condensed overhead lights from a diluent recycle column disposed in the fractionation subsystem. The diluent recycle column may receive a stream comprising diluent and monomer as feed from the diluent/monomer recovery subsystem, and may receive the non-diverted portion of the reflux flow as reflux.
PCT/US2006/048323 2005-12-21 2006-12-19 Monomer recovery by returning column overhead liquid to the reactor WO2007075615A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BRPI0620392-2A BRPI0620392A2 (en) 2005-12-21 2006-12-19 monomer recovery by return of overhead liquid from column to reactor
CA002633647A CA2633647A1 (en) 2005-12-21 2006-12-19 Monomer recovery by returning column overhead liquid to the reactor
EP06847774A EP1976890A2 (en) 2005-12-21 2006-12-19 Monomer recovery by returning column overhead liquid to the reactor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/313,328 US7629421B2 (en) 2005-12-21 2005-12-21 Monomer recovery by returning column overhead liquid to the reactor
US11/313,328 2005-12-21

Publications (2)

Publication Number Publication Date
WO2007075615A2 WO2007075615A2 (en) 2007-07-05
WO2007075615A3 true WO2007075615A3 (en) 2007-09-13

Family

ID=38109634

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/048323 WO2007075615A2 (en) 2005-12-21 2006-12-19 Monomer recovery by returning column overhead liquid to the reactor

Country Status (6)

Country Link
US (1) US7629421B2 (en)
EP (1) EP1976890A2 (en)
CN (1) CN101384625A (en)
BR (1) BRPI0620392A2 (en)
CA (1) CA2633647A1 (en)
WO (1) WO2007075615A2 (en)

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CN114272857B (en) * 2021-12-31 2022-10-28 合盛硅业股份有限公司 Method and system for replacing synthetic organic silicon monomer raw material
CN114608376B (en) * 2022-02-18 2024-03-19 国家能源集团宁夏煤业有限责任公司 Method and system for cleaning circulating gas condenser through replacement without stopping and application of method and system

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Also Published As

Publication number Publication date
WO2007075615A2 (en) 2007-07-05
BRPI0620392A2 (en) 2011-11-16
EP1976890A2 (en) 2008-10-08
CA2633647A1 (en) 2007-07-05
US20070142576A1 (en) 2007-06-21
US7629421B2 (en) 2009-12-08
CN101384625A (en) 2009-03-11

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