GB681614A - Improvements in, or relating to, generators of protective gaseous furnace atmosphere - Google Patents

Improvements in, or relating to, generators of protective gaseous furnace atmosphere

Info

Publication number
GB681614A
GB681614A GB17150A GB17150A GB681614A GB 681614 A GB681614 A GB 681614A GB 17150 A GB17150 A GB 17150A GB 17150 A GB17150 A GB 17150A GB 681614 A GB681614 A GB 681614A
Authority
GB
United Kingdom
Prior art keywords
per cent
gas
combustion gases
volume
retort
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
GB17150A
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.)
Birlec Ltd
Original Assignee
Birlec 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 Birlec Ltd filed Critical Birlec Ltd
Priority to GB17150A priority Critical patent/GB681614A/en
Publication of GB681614A publication Critical patent/GB681614A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C21D1/763—Adjusting the composition of the atmosphere using a catalyst
    • 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
    • B01J8/06—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 in tube reactors; the solid particles being arranged in tubes
    • B01J8/062—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 in tube reactors; the solid particles being arranged in tubes being installed in a furnace
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/384—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts the catalyst being continuously externally heated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Furnace Details (AREA)

Abstract

681,614. Furnace atmospheres. BIRLEC, Ltd., and HANCOCK, P. F. April 4, 1951 [Jan. 4, 1950], No. 171/50. Class 51 (ii). In an endothermic furnace atmosphere generator of the kind in which a protective atmosphere is produced by catalytic reaction between coal gas or other hydrocarbon-containing fuel gas and air at a ratio considerably higher than that required for normal combustion, a retort 1 containing the catalyst bed 2 is surrounded by a combustion chamber 4 supplied at 5 with a mixture of fuel gas and air, combustion gases being lead off through a pipe 6 and condenser 7 to the inlet of the retort where additional fuel gas is added at 9 before the mixture passes through the catalyst retort. A controlled offtake 8 is provided for the removal of excess combustion gases and the same gas, e.g. coal gas, may be used at both stages or a hydrocarbon gas, e.g. butane, may be added to the combustion gases. A coal gas : air mixture in the proportion of 1 4 by volume burnt in the combustion chamber 4, the resultant combustion gases being mixed with 1¢ times their volume of coal gas and passed through the retort, produces a gas having the composition 0.5 per cent CO 2 , 22 per cent CO, 31 per cent H 2 and the balance mainly nitrogen. Passing a mixture of the aforesaid combustion gases and butane in the proportion of 200 : 7 by volume, on the other hand, gives an atmosphere gas having the composition 0.5 per cent CO 2 , 21 per cent CO, 12 per cent H 2 , the remainder being nitrogen. Using an initial coal gas : air mixture of 1 : 2 by volume and resultant combustion gases and butane in the proportion of 200 : 3 by volume the percentage of CO is reduced, the atmosphere gas so formed comprising 0.5 per cent CO 2 , 12.5 per cent CO, 17.5 per cent H 2 and the balance nitrogen.
GB17150A 1950-01-04 1950-01-04 Improvements in, or relating to, generators of protective gaseous furnace atmosphere Expired GB681614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17150A GB681614A (en) 1950-01-04 1950-01-04 Improvements in, or relating to, generators of protective gaseous furnace atmosphere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17150A GB681614A (en) 1950-01-04 1950-01-04 Improvements in, or relating to, generators of protective gaseous furnace atmosphere

Publications (1)

Publication Number Publication Date
GB681614A true GB681614A (en) 1952-10-29

Family

ID=9699653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17150A Expired GB681614A (en) 1950-01-04 1950-01-04 Improvements in, or relating to, generators of protective gaseous furnace atmosphere

Country Status (1)

Country Link
GB (1) GB681614A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316320A1 (en) * 1975-07-01 1977-01-28 Vasiliev Sergei PROCESS FOR OBTAINING CONTROLLED ATMOSPHERES AND DEVICE FOR ACHIEVING IT
EP0324207A2 (en) * 1988-01-14 1989-07-19 Metallgesellschaft Ag Process for producing a gas rich in carbon monoxide by cracking hydrocarbons
WO2002008472A1 (en) * 2000-07-25 2002-01-31 Linde Ag Method and device for producing treatment gas containing co and h2 for the heat treatment of metallic material and heat treatment system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316320A1 (en) * 1975-07-01 1977-01-28 Vasiliev Sergei PROCESS FOR OBTAINING CONTROLLED ATMOSPHERES AND DEVICE FOR ACHIEVING IT
EP0324207A2 (en) * 1988-01-14 1989-07-19 Metallgesellschaft Ag Process for producing a gas rich in carbon monoxide by cracking hydrocarbons
EP0324207A3 (en) * 1988-01-14 1990-03-28 Metallgesellschaft Ag Process for producing a gas rich in carbon monoxide by cracking hydrocarbons
WO2002008472A1 (en) * 2000-07-25 2002-01-31 Linde Ag Method and device for producing treatment gas containing co and h2 for the heat treatment of metallic material and heat treatment system

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