GB727575A - Improvements in or relating to regenerative heat-recovering methods for carrying outgaseous chemical reactions - Google Patents

Improvements in or relating to regenerative heat-recovering methods for carrying outgaseous chemical reactions

Info

Publication number
GB727575A
GB727575A GB21141/51A GB2114151A GB727575A GB 727575 A GB727575 A GB 727575A GB 21141/51 A GB21141/51 A GB 21141/51A GB 2114151 A GB2114151 A GB 2114151A GB 727575 A GB727575 A GB 727575A
Authority
GB
United Kingdom
Prior art keywords
heat
gas
regenerative
reaction zone
compressed
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
GB21141/51A
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.)
Casale SA
Original Assignee
Ammonia Casale SA
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 Ammonia Casale SA filed Critical Ammonia Casale SA
Publication of GB727575A publication Critical patent/GB727575A/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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/30—Preparation by oxidation of nitrogen
    • 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
    • B01J2219/00065—Pressure measurement
    • 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
    • B01J2219/00132—Controlling the temperature using electric heating or cooling 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/0015—Controlling the temperature by thermal insulation means
    • B01J2219/00155—Controlling the temperature by thermal insulation means using insulating materials or refractories
    • 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
    • B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
    • 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
    • B01J2219/00164—Controlling or regulating processes controlling the flow
    • 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
    • B01J2219/00186—Controlling or regulating processes controlling the composition of the reactive mixture
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

<PICT:0727575/III/1> Gaseous chemical reactions are carried out by a regenerative heat-recovery method in which the gaseous reactants are compressed to a superatmospheric pressure and passed through a heat regenerative mass, where they are preheated, to a reaction zone, the reaction products being led through a second heat regenerative mass to which they give up heat, and then into a turbine where the pressure energy is utilized; the direction of gas flow through the regenerator masses and reaction zone is periodically reversed. Before passing to the turbine, the product gas may be treated to remove dust, moisture, or a chemical constituent. The heat regenerative masses consist of packing material which provides narrow passages for the gas, and may contain a catalyst. In the apparatus shown, waste oxygen-containing gas to be purified is compressed at C and led through regenerative mass R1 to reaction zone L, while a gaseous fuel, e.g. water gas, is compressed at C1, flows through regenerative mass R11 and burns in the reaction zone L; the purified gas gives up heat in regenerative masses R2 and R12 and then passes through cyclone dust separator S to turbine M; adjustment of valves D, D1 reverses the gas flow through the apparatus. A temperature of about 1,000 DEG C. is maintained in the reaction zone by regulation of the gaseous fuel feed. Instead of supplying heat by burning gaseous fuel, electrical heating elements may be provided in the chamber L. The process is also used for the production of nitric oxide from air or oxygen-nitrogen mixtures; air compressed to 3 atmospheres pressure is treated in a chamber to which a gaseous fuel, e.g. natural gas, is introduced to maintain a temperature of 2,000 DEG C. or more. Specifications 212,671, [Class 51 (i)], 269,711, [Class 55 (ii)], 390,849 and 478,215, [both in Group XII], are referred to.
GB21141/51A 1950-09-18 1951-09-07 Improvements in or relating to regenerative heat-recovering methods for carrying outgaseous chemical reactions Expired GB727575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT727575X 1950-09-18

Publications (1)

Publication Number Publication Date
GB727575A true GB727575A (en) 1955-04-06

Family

ID=11315147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21141/51A Expired GB727575A (en) 1950-09-18 1951-09-07 Improvements in or relating to regenerative heat-recovering methods for carrying outgaseous chemical reactions

Country Status (3)

Country Link
DE (1) DE899189C (en)
GB (1) GB727575A (en)
NL (1) NL163737B (en)

Also Published As

Publication number Publication date
NL163737B (en) 1954-07-15
DE899189C (en) 1953-12-10

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