GB602278A - Improvements relating to the temperature control of exothermic reactions - Google Patents

Improvements relating to the temperature control of exothermic reactions

Info

Publication number
GB602278A
GB602278A GB2476745A GB2476745A GB602278A GB 602278 A GB602278 A GB 602278A GB 2476745 A GB2476745 A GB 2476745A GB 2476745 A GB2476745 A GB 2476745A GB 602278 A GB602278 A GB 602278A
Authority
GB
United Kingdom
Prior art keywords
coolant liquid
reaction zone
catalyst
injected
temperature
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.)
Expired
Application number
GB2476745A
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.)
Standard Oil Development Co
Original Assignee
Standard Oil Development Co
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 Standard Oil Development Co filed Critical Standard Oil Development Co
Priority to GB2476745A priority Critical patent/GB602278A/en
Publication of GB602278A publication Critical patent/GB602278A/en
Expired 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/04—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
    • B01J8/0492—Feeding reactive fluids
    • 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
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/04—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
    • B01J8/0446—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical
    • B01J8/0449—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical in two or more cylindrical beds
    • B01J8/0453—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the flow within the beds being predominantly vertical in two or more cylindrical beds the beds being superimposed one above the other

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

In carrying out continuous exothermic reactions in which a fluid is contacted with a solid catalyst in a reaction zone the temperature of which must be kept within predetermined limits, a vaporisable coolant liquid, e.g. water, is injected into the reaction zone in sufficient quantity to maintain the reaction temperature within the desired range, e.g. 350-450 DEG F., but not in excess of the amount which will be completely vaporised under the conditions prevailing therein, and in such a manner that the catalyst does not come in contact with unvaporized coolant liquid. The fluid may comprise a polymer, e.g. di-isobutylene or an aromatic nitrohydrocarbon, e.g. a nitroxylene, preferably vaporised, and hydrogen. The catalyst, which may be a hydrogenation catalyst, e.g. one or more metals of Groups VI and VIII of the Periodic Table or their oxides or sulphides, and preferably molybdenum sulphide, may be maintained in the reaction zone as a series of spaced beds, the coolant liquid being injected into the spaces therebetween.ALSO:In carrying out continuous exothermic reactions, e.g hydrogenation of a polymer such as diisobutylene or aromatic nitrohydrocarbons such as nitroxylene, in which a fluid is contacted with a solid catalyst in a reaction zone the temperature of which must be kept within predetermined limits, a vaporisable coolant liquid, e.g. water, is injected into the reaction zone in sufficient quantity to maintain the reaction temperature within the desired range, e.g. 350-450 DEG F., but not in excess of the amount which will be completely vaporised under the conditions prevailing therein, and in such a manner that the catalyst does not come in contact with unvaporized coolant liquid. The hydrogenation catalyst may comprise one or more metals of Groups VI and VIII of the Periodic Table or their oxides or sulphides, preferably molybdenum sulphide, and may be maintained in the reaction zone as a series of spaced beds, the coolant liquid being injected into the spaces therebetween.
GB2476745A 1945-09-24 1945-09-24 Improvements relating to the temperature control of exothermic reactions Expired GB602278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2476745A GB602278A (en) 1945-09-24 1945-09-24 Improvements relating to the temperature control of exothermic reactions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2476745A GB602278A (en) 1945-09-24 1945-09-24 Improvements relating to the temperature control of exothermic reactions

Publications (1)

Publication Number Publication Date
GB602278A true GB602278A (en) 1948-05-24

Family

ID=10216925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2476745A Expired GB602278A (en) 1945-09-24 1945-09-24 Improvements relating to the temperature control of exothermic reactions

Country Status (1)

Country Link
GB (1) GB602278A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236694A (en) * 1989-10-02 1991-04-17 Richter Gedeon Vegyeszet A process and apparatus for controlling the temperature of chemical reactions using liquefied gas as a coolant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236694A (en) * 1989-10-02 1991-04-17 Richter Gedeon Vegyeszet A process and apparatus for controlling the temperature of chemical reactions using liquefied gas as a coolant
GB2236694B (en) * 1989-10-02 1993-08-11 Richter Gedeon Vegyeszet A process and apparatus for controlling the temperature of chemical reactions

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