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AR040598A1 - DIRECT METHOD OF RECYCLING AND FRACTIONATION IN WHICH AN OSCILLATING OPERATING COLUMN IS USED - Google Patents

DIRECT METHOD OF RECYCLING AND FRACTIONATION IN WHICH AN OSCILLATING OPERATING COLUMN IS USED

Info

Publication number
AR040598A1
AR040598A1 AR20030102571A ARP030102571A AR040598A1 AR 040598 A1 AR040598 A1 AR 040598A1 AR 20030102571 A AR20030102571 A AR 20030102571A AR P030102571 A ARP030102571 A AR P030102571A AR 040598 A1 AR040598 A1 AR 040598A1
Authority
AR
Argentina
Prior art keywords
fluid
high pressure
distillation column
instantaneous
olefins
Prior art date
Application number
AR20030102571A
Other languages
Spanish (es)
Original Assignee
Chevron Philips Chemical Compa
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
Priority claimed from US09/265,286 external-priority patent/US6262191B1/en
Priority claimed from US10/196,550 external-priority patent/US6559247B2/en
Application filed by Chevron Philips Chemical Compa filed Critical Chevron Philips Chemical Compa
Publication of AR040598A1 publication Critical patent/AR040598A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0005—Degasification of liquids with one or more auxiliary substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0005—Degasification of liquids with one or more auxiliary substances
    • B01D19/001—Degasification of liquids with one or more auxiliary substances by bubbling steam through the liquid
    • B01D19/0015—Degasification of liquids with one or more auxiliary substances by bubbling steam through the liquid in contact columns containing plates, grids or other filling elements
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/005—Separating solid material from the gas/liquid stream
    • 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • 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
    • C08F2/04—Polymerisation in solution
    • C08F2/06—Organic solvent
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • 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
    • 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
    • C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
    • 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
    • B01J2208/00283—Part of all of the reactants being heated or cooled outside the reactor while recycling involving reactant liquids
    • 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
    • B01J2208/00752—Feeding
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Un proceso y un aparato para hacer pasar un efluente de polimerización, que comprende polímero sólido, monómero sin reaccionar, diluyente y cantidades minoritarias de contaminantes, a una columna de destilación instantánea de alta presión donde se evaporan rápidamente la mayor parte de los componentes del fluido y donde se separa del volumen de los componentes evaporados del fluido, una corriente auxiliar que comprende diluyente y cantidades minoritarias de monómero. Dicha corriente auxiliar se somete a una eliminación de olefinas para dar una corriente esencialmente libre de olefinas que se recicla hacia un área de preparación de lodo catalizador. El volumen de los componentes evaporados del fluido se recicla directamente de vuelta a la zona de polimerización sin efectuar una costosa eliminación de olefinas, aunque opcionalmente se pueden llevar a cabo tratamientos para eliminar otros contaminantes. El polímero y el fluido que arrastra se hace pasar a una zona de evaporación instantánea de baja presión donde los fluidos se evaporan rápidamente, se comprimen y se combinan con los vapores provenientes del tanque de la columna de destilación instantánea de alta presión. Como la mayor parte de los fluidos se elimina en la columna de destilación instantánea de alta presión, se mantienen en un mínimo la compresión y el enfriamiento de los productos fluidos antes de la recirculación.A process and an apparatus for passing a polymerization effluent, comprising solid polymer, unreacted monomer, diluent and minor amounts of contaminants, to a high pressure instantaneous distillation column where most of the fluid components quickly evaporate and where an auxiliary stream comprising diluent and minor amounts of monomer is separated from the volume of the evaporated components of the fluid. Said auxiliary stream is subjected to a removal of olefins to give a stream essentially free of olefins that is recycled to a catalyst sludge preparation area. The volume of the evaporated components of the fluid is recycled directly back to the polymerization zone without costly olefin removal, although optionally treatments can be carried out to remove other contaminants. The polymer and the dragging fluid is passed to a zone of instantaneous evaporation of low pressure where the fluids evaporate quickly, are compressed and combined with the vapors from the tank of the column of instantaneous distillation column of high pressure. Since most of the fluids are removed in the high pressure instantaneous distillation column, compression and cooling of the fluid products are kept to a minimum before recirculation.

AR20030102571A 1999-03-09 2003-07-17 DIRECT METHOD OF RECYCLING AND FRACTIONATION IN WHICH AN OSCILLATING OPERATING COLUMN IS USED AR040598A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/265,286 US6262191B1 (en) 1999-03-09 1999-03-09 Diluent slip stream to give catalyst wetting agent
PCT/US2000/006035 WO2000053306A1 (en) 1999-03-09 2000-03-08 Diluent slip stream to give catalyst wetting agent
US10/196,550 US6559247B2 (en) 1999-03-09 2002-07-17 Direct recycle fractionation method using a swing column

Publications (1)

Publication Number Publication Date
AR040598A1 true AR040598A1 (en) 2005-04-13

Family

ID=42813390

Family Applications (1)

Application Number Title Priority Date Filing Date
AR20030102571A AR040598A1 (en) 1999-03-09 2003-07-17 DIRECT METHOD OF RECYCLING AND FRACTIONATION IN WHICH AN OSCILLATING OPERATING COLUMN IS USED

Country Status (1)

Country Link
AR (1) AR040598A1 (en)

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Legal Events

Date Code Title Description
FG Grant, registration
FD Application declared void or lapsed, e.g., due to non-payment of fee