FR2356197A1 - Controlling endo and exothermic chemical reactions - esp. polymerisations, by measuring loss or gain in heat of heat exchange medium after it passes through reactor - Google Patents

Controlling endo and exothermic chemical reactions - esp. polymerisations, by measuring loss or gain in heat of heat exchange medium after it passes through reactor

Info

Publication number
FR2356197A1
FR2356197A1 FR7619380A FR7619380A FR2356197A1 FR 2356197 A1 FR2356197 A1 FR 2356197A1 FR 7619380 A FR7619380 A FR 7619380A FR 7619380 A FR7619380 A FR 7619380A FR 2356197 A1 FR2356197 A1 FR 2356197A1
Authority
FR
France
Prior art keywords
exchange medium
heat exchange
heat
temp
chemical reactions
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7619380A
Other languages
French (fr)
Other versions
FR2356197B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to FR7619380A priority Critical patent/FR2356197A1/en
Publication of FR2356197A1 publication Critical patent/FR2356197A1/en
Application granted granted Critical
Publication of FR2356197B1 publication Critical patent/FR2356197B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01J19/0006—Controlling or regulating processes
    • B01J19/0013—Controlling the temperature of the process
    • 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
    • B01J19/0006—Controlling or regulating processes
    • B01J19/0033—Optimalisation processes, i.e. processes with adaptive control systems
    • 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
    • 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
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00058—Temperature measurement
    • B01J2219/00063—Temperature measurement of the reactants
    • 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
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00191—Control algorithm
    • B01J2219/00193—Sensing a parameter
    • B01J2219/00195—Sensing a parameter of the reaction system
    • B01J2219/002—Sensing a parameter of the reaction system inside 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00191—Control algorithm
    • B01J2219/00222—Control algorithm taking actions
    • B01J2219/00227—Control algorithm taking actions modifying the operating conditions
    • B01J2219/00238—Control algorithm taking actions modifying the operating conditions of the heat exchange system
    • 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
    • B01J2219/00781—Aspects relating to microreactors
    • B01J2219/0095—Control aspects
    • B01J2219/00952—Sensing operations
    • B01J2219/00954—Measured properties
    • B01J2219/00961—Temperature

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A method is provided for measuring the extent of exothermic or endothermic chemical reactions while the reactions proceed and for controlling such reactions. In the method, at least part of the heat produced or absorbed by the reaction mixture is continuously removed or replaced by a heat exchange medium passing through the reaction vessel at a known rate, and measurements are continually made of the ingoing and outgoing temps. of the heat exchange medium. The numerical value of the ingoing temp. is stored in a memory device for a period equal to the time taken for the heat exchange medium to pass from the point of measurement of the ingoing temp. to the point of measurement of the outgoing temp., and this value is then compared with the numerical value of the outgoing temp. The heat produced or absorbed by the reaction mixture is then computed as a function of the product of the measured temp. difference and the heat capacity and the rate of flow of the heat exchange medium, so that the control of the reaction may then be effected accordingly.
FR7619380A 1976-06-25 1976-06-25 Controlling endo and exothermic chemical reactions - esp. polymerisations, by measuring loss or gain in heat of heat exchange medium after it passes through reactor Granted FR2356197A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7619380A FR2356197A1 (en) 1976-06-25 1976-06-25 Controlling endo and exothermic chemical reactions - esp. polymerisations, by measuring loss or gain in heat of heat exchange medium after it passes through reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7619380A FR2356197A1 (en) 1976-06-25 1976-06-25 Controlling endo and exothermic chemical reactions - esp. polymerisations, by measuring loss or gain in heat of heat exchange medium after it passes through reactor

Publications (2)

Publication Number Publication Date
FR2356197A1 true FR2356197A1 (en) 1978-01-20
FR2356197B1 FR2356197B1 (en) 1979-08-17

Family

ID=9174870

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7619380A Granted FR2356197A1 (en) 1976-06-25 1976-06-25 Controlling endo and exothermic chemical reactions - esp. polymerisations, by measuring loss or gain in heat of heat exchange medium after it passes through reactor

Country Status (1)

Country Link
FR (1) FR2356197A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092924A2 (en) * 1982-04-22 1983-11-02 The Babcock & Wilcox Company Reactor temperature control systems and methods
EP0094208A2 (en) * 1982-05-07 1983-11-16 The Babcock & Wilcox Company Reactor temperature control systems
EP0111341A2 (en) * 1982-12-13 1984-06-20 Sumitomo Chemical Company, Limited Process for producing a vinyl polymer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092924A2 (en) * 1982-04-22 1983-11-02 The Babcock & Wilcox Company Reactor temperature control systems and methods
EP0092924A3 (en) * 1982-04-22 1985-06-26 The Babcock & Wilcox Company Reactor temperature control systems and methods
EP0094208A2 (en) * 1982-05-07 1983-11-16 The Babcock & Wilcox Company Reactor temperature control systems
EP0094208A3 (en) * 1982-05-07 1985-07-10 The Babcock & Wilcox Company Reactor temperature control systems
EP0111341A2 (en) * 1982-12-13 1984-06-20 Sumitomo Chemical Company, Limited Process for producing a vinyl polymer
EP0111341A3 (en) * 1982-12-13 1984-07-25 Sumitomo Chemical Company, Limited Process for producing a vinyl polymer

Also Published As

Publication number Publication date
FR2356197B1 (en) 1979-08-17

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