IN2015DN03103A - - Google Patents

Info

Publication number
IN2015DN03103A
IN2015DN03103A IN3103DEN2015A IN2015DN03103A IN 2015DN03103 A IN2015DN03103 A IN 2015DN03103A IN 3103DEN2015 A IN3103DEN2015 A IN 3103DEN2015A IN 2015DN03103 A IN2015DN03103 A IN 2015DN03103A
Authority
IN
India
Prior art keywords
shell
heat exchanger
tube
tube heat
inlet pipe
Prior art date
Application number
Inventor
Laura J ; Dietsche
James L Swecker
Mark W Blood
Ping; Cai
F David Hussein
Original Assignee
Univation Tech Llc
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 Univation Tech Llc filed Critical Univation Tech Llc
Publication of IN2015DN03103A publication Critical patent/IN2015DN03103A/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
    • C08F2/00—Processes of polymerisation
    • C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/34—Polymerisation in gaseous state
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0256—Arrangements for coupling connectors with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Abstract

Disclosed herein are improvements in recycle gas cooler systems in gas- phase polymerization processes that reduce the tendency for cooler fouling ,including a recycle gas cooler system comprising a shell -and -tube heat exchanger. One or more of the tubes of the shell- and -tube heat exchanger may have a flared tube inlet at the tube sheet. The shell- and -tube heat exchanger may also be coupled to a straight inlet pipe having a length that is either at least about 5 times the inner diameter of the straight inlet pipe or at least about 15 feet, whichever is greater.
IN3103DEN2015 2012-11-12 2013-11-11 IN2015DN03103A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261725119P 2012-11-12 2012-11-12
PCT/US2013/069420 WO2014074981A1 (en) 2012-11-12 2013-11-11 Recycle gas cooler systems for gas-phase polymerization processes

Publications (1)

Publication Number Publication Date
IN2015DN03103A true IN2015DN03103A (en) 2015-10-02

Family

ID=49622919

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3103DEN2015 IN2015DN03103A (en) 2012-11-12 2013-11-11

Country Status (6)

Country Link
US (1) US9410001B2 (en)
EP (1) EP2917677A1 (en)
CN (1) CN104781628B (en)
BR (1) BR112015009968A2 (en)
IN (1) IN2015DN03103A (en)
WO (1) WO2014074981A1 (en)

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US10308738B2 (en) * 2015-06-15 2019-06-04 Basell Polyolefine Gmbh Polymerization plant having parallel cooling channels in a recycle connection
US10457753B2 (en) 2016-10-14 2019-10-29 Chevron Phillips Chemical Company Lp Elimination of polymer fouling in fluidized bed gas-phase fines recovery eductors
US11027253B2 (en) 2019-09-26 2021-06-08 Chevron Phillips Chemical Company Lp Systems and methods for reducing heat exchanger fouling rate
WO2021167761A1 (en) * 2020-02-21 2021-08-26 Exxonmobil Chemical Patents Inc. Systems for cooling recycled off-gas in low-density polyethylene production
US11618793B2 (en) 2020-08-27 2023-04-04 Exxonmobil Chemical Patents Inc. Optimized inert gas partial pressure in a gas phase polymerization process
US11492422B2 (en) 2020-11-19 2022-11-08 Exxonmobil Chemical Patents Inc. Olefin polymerization processes
WO2023056573A1 (en) * 2021-10-06 2023-04-13 W. R. Grace & Co.-Conn Gas-phase process for making polypropylene random copolymers

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Also Published As

Publication number Publication date
WO2014074981A1 (en) 2014-05-15
BR112015009968A2 (en) 2017-07-11
CN104781628A (en) 2015-07-15
CN104781628B (en) 2017-07-07
US20150284481A1 (en) 2015-10-08
US9410001B2 (en) 2016-08-09
EP2917677A1 (en) 2015-09-16

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