GB2125818A - Fuel gas composition for use in cutting welding or hot working metals and glass - Google Patents

Fuel gas composition for use in cutting welding or hot working metals and glass Download PDF

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Publication number
GB2125818A
GB2125818A GB08317257A GB8317257A GB2125818A GB 2125818 A GB2125818 A GB 2125818A GB 08317257 A GB08317257 A GB 08317257A GB 8317257 A GB8317257 A GB 8317257A GB 2125818 A GB2125818 A GB 2125818A
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GB
United Kingdom
Prior art keywords
gas composition
hydrogen
volume
gas
fuel gas
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.)
Withdrawn
Application number
GB08317257A
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GB8317257D0 (en
Inventor
Yoshio Horiguchi
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.)
Suzuki Shokan Co Ltd
Original Assignee
Suzuki Shokan Co 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 Suzuki Shokan Co Ltd filed Critical Suzuki Shokan Co Ltd
Publication of GB8317257D0 publication Critical patent/GB8317257D0/en
Publication of GB2125818A publication Critical patent/GB2125818A/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B3/00—Coke ovens with vertical chambers
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Glass Compositions (AREA)

Abstract

A gas composition containing about 1% to about 20% by volume of a normally gaseous aliphatic hydrocarbon and the balance being essentially hydrogen is suitable for use in cutting, welding or hot working of metals or glass.

Description

SPECIFICATION Fuel gas composition for use in cutting, welding or hot working metals and glass The present invention relates to a fuel gas composition suitable for use in gas cutting, gas-welding and hotworking of metals and glass.
It is well known that hydrogen can be used as fuel gas in the practice of cutting, welding, hot working and the like of metals. However, an oxyhydrogen flame resulting from the burning of hydrogen is different from an oxyacetyleneflame in that the former does not form a white cone and therefore it is hardiy possible to see a frame cone with the naked eye. Accordingly, it is extremely difficult to adjust and manipulate the oxyhydrogen flame. In addition, a not necessarily reasonable notion has been universally prevalent that hydrogen, when mixed with air, explodes very easily.
In these circumstances, acetylene has been exciusively used for the purposes of gas cutting, gaswelding, hot working and the like of metals and hydrogen has been little used for these purposes.
The present invention provides a fuel gas composition consisting of a mixture of hydrogen with a small amount of a normally gaseous aliphatic hydrocarbon, this mixed gas, when burnt in the presence of an appropriate amount of oxygen, being capable of forming a flame which has a white cone and is easy to adjustand manipulate, ~ ~~ That is to say, the fuel gas composition according to the present invention contains about 1% to about 20% by volume of one or more C1 to C4 aliphatic hydrocarbons, the balance being essentially hydrogen. This fuel gas composition, which forms a flame with a white cone when burnt with an appropriate amount of oxygen, can be used in the cutting, welding and hot working of metals and glass.
The fuel gas composition of the present invention is prepared by mixing hydrogen with one or more Ci to C4 aliphatic hydrocarbons, e.g. methane, ethane, propane or butane, in an amount of about 1% to about 20% by volume, and charged in cylinders for storing and transporting purposes. Typically examples of the fuel gas composition according to the present invention include a gas composition consisting of about 1% to about 20% by volume of methane or natural gas and hydrogen and a gas composition consisting of about 1% to about 20% by volume of ethane or propane and hydrogen. The gas preferably contains about 90% by volume of hydrogen and about 10% by volume of methane or natural gas.
Gas mixtures containing a gaseous aliphatic hydrocarbon in an amount of less than about 1% by volume, when burnt, cannot form a flame with a stable white cone. On the other hand, a gas mixture containing more than about 20% by volume of the hydrocarbon, is, when burnt, likely to generate soot.
In contrast, the fuel gas composition of the invention, when burnt, forms a flame with a stable white cone which is easy to see with the naked eye and is thus easy to adjust, and only gives combustion products such as water and a small amount of carbon dioxide.
Furthermore, the flame obtained from the gas composition of the present invention forms the white cone which is better defined than that of the oxyacetylene flame, and therefore is very suitable for cutting, welding and hot working of metals or glass. In the semi-automatic gas cutting of steel plates which are 6mm, 1 2mm, 25mm and 50mm in thickness using the preferred gas composition of the invention, it was confirmed that in each case the portions other than the cut portion were only very slightly affected by heat and the base metal's distortion by heat was very slight.
In the gas composition of the present invention, the minimum explosive concentration may be lower than that of hydrogen except for the case where the aliphatic hydrocarbon is methane. There is however, no possibility of the minimum being lower than that of acetylene, i.e. 2.50% by volume. Although the gas composition of the present invention is substantially colourless and odourless, it may be scented to facilitate detection by leaks.
1. A fuel gas composition which contains about 1%to about 20% by volume of one or more C1 - C4 aliphatic hydrocarbons, the balance being essentially hydrogen.
2. Afuel gas composition as claimed in claim 1 wherein said aliphatic hydrocarbon is natural gas or methane.
3. A method of gas cutting, welding or hot working a metal or glass in which the fuel gas used is a composition as claimed in claim 1 or claim 2.
4. A gas composition as claimed in claim 1 or claim 2 when for use in a method as claimed in claim 3.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Fuel gas composition for use in cutting, welding or hot working metals and glass The present invention relates to a fuel gas composition suitable for use in gas cutting, gas-welding and hotworking of metals and glass. It is well known that hydrogen can be used as fuel gas in the practice of cutting, welding, hot working and the like of metals. However, an oxyhydrogen flame resulting from the burning of hydrogen is different from an oxyacetyleneflame in that the former does not form a white cone and therefore it is hardiy possible to see a frame cone with the naked eye. Accordingly, it is extremely difficult to adjust and manipulate the oxyhydrogen flame. In addition, a not necessarily reasonable notion has been universally prevalent that hydrogen, when mixed with air, explodes very easily. In these circumstances, acetylene has been exciusively used for the purposes of gas cutting, gaswelding, hot working and the like of metals and hydrogen has been little used for these purposes. The present invention provides a fuel gas composition consisting of a mixture of hydrogen with a small amount of a normally gaseous aliphatic hydrocarbon, this mixed gas, when burnt in the presence of an appropriate amount of oxygen, being capable of forming a flame which has a white cone and is easy to adjustand manipulate, ~ ~~ That is to say, the fuel gas composition according to the present invention contains about 1% to about 20% by volume of one or more C1 to C4 aliphatic hydrocarbons, the balance being essentially hydrogen. This fuel gas composition, which forms a flame with a white cone when burnt with an appropriate amount of oxygen, can be used in the cutting, welding and hot working of metals and glass. The fuel gas composition of the present invention is prepared by mixing hydrogen with one or more Ci to C4 aliphatic hydrocarbons, e.g. methane, ethane, propane or butane, in an amount of about 1% to about 20% by volume, and charged in cylinders for storing and transporting purposes. Typically examples of the fuel gas composition according to the present invention include a gas composition consisting of about 1% to about 20% by volume of methane or natural gas and hydrogen and a gas composition consisting of about 1% to about 20% by volume of ethane or propane and hydrogen. The gas preferably contains about 90% by volume of hydrogen and about 10% by volume of methane or natural gas. Gas mixtures containing a gaseous aliphatic hydrocarbon in an amount of less than about 1% by volume, when burnt, cannot form a flame with a stable white cone. On the other hand, a gas mixture containing more than about 20% by volume of the hydrocarbon, is, when burnt, likely to generate soot. In contrast, the fuel gas composition of the invention, when burnt, forms a flame with a stable white cone which is easy to see with the naked eye and is thus easy to adjust, and only gives combustion products such as water and a small amount of carbon dioxide. Furthermore, the flame obtained from the gas composition of the present invention forms the white cone which is better defined than that of the oxyacetylene flame, and therefore is very suitable for cutting, welding and hot working of metals or glass. In the semi-automatic gas cutting of steel plates which are 6mm, 1 2mm, 25mm and 50mm in thickness using the preferred gas composition of the invention, it was confirmed that in each case the portions other than the cut portion were only very slightly affected by heat and the base metal's distortion by heat was very slight. In the gas composition of the present invention, the minimum explosive concentration may be lower than that of hydrogen except for the case where the aliphatic hydrocarbon is methane. There is however, no possibility of the minimum being lower than that of acetylene, i.e. 2.50% by volume. Although the gas composition of the present invention is substantially colourless and odourless, it may be scented to facilitate detection by leaks. CLAIMS
1. A fuel gas composition which contains about 1%to about 20% by volume of one or more C1 - C4 aliphatic hydrocarbons, the balance being essentially hydrogen.
2. Afuel gas composition as claimed in claim 1 wherein said aliphatic hydrocarbon is natural gas or methane.
3. A method of gas cutting, welding or hot working a metal or glass in which the fuel gas used is a composition as claimed in claim 1 or claim 2.
4. A gas composition as claimed in claim 1 or claim 2 when for use in a method as claimed in claim 3.
GB08317257A 1982-06-26 1983-06-24 Fuel gas composition for use in cutting welding or hot working metals and glass Withdrawn GB2125818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57110244A JPS591594A (en) 1982-06-26 1982-06-26 Fuel gas for fusion cutting, welding and heating

Publications (2)

Publication Number Publication Date
GB8317257D0 GB8317257D0 (en) 1983-07-27
GB2125818A true GB2125818A (en) 1984-03-14

Family

ID=14530757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08317257A Withdrawn GB2125818A (en) 1982-06-26 1983-06-24 Fuel gas composition for use in cutting welding or hot working metals and glass

Country Status (4)

Country Link
JP (1) JPS591594A (en)
DE (1) DE3322362A1 (en)
FR (1) FR2529222A1 (en)
GB (1) GB2125818A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6099294A (en) * 1996-07-17 2000-08-08 Azatyan; Vylen Vagarshovich Method of regulating the oxidation of hydrogen in air, including the transition to combustion, the intensity of combustion, the transition from combustion to explosion and the intensity of explosion
WO2011155854A1 (en) * 2010-06-10 2011-12-15 Chung Dominic N Jr System and method for onsite on-demand production and instant utilization of a safely usable conditioned mix of water-derived hydrogen and oxygen gases
CN103320190A (en) * 2013-06-25 2013-09-25 苍溪县大通天然气投资有限公司 Welding and cutting gas and preparation method thereof
US20220306954A1 (en) * 2017-11-17 2022-09-29 Clayton ORIVAM DE MORAIS Oxy fuel gas mixtures and methods for use

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2746717B2 (en) * 1990-02-02 1998-05-06 キヤノン株式会社 Ink jet recording device
WO1999020716A1 (en) * 1996-07-17 1999-04-29 Vylen Vagarshovich Azatyan Hydrogen-containing fuel
CN114015485A (en) * 2021-01-15 2022-02-08 锦州安燃高能切割气有限公司 Natural gas metal welding and cutting gas
DE102021005905A1 (en) * 2021-11-30 2023-06-01 Messer Se & Co. Kgaa Process for the oxy-fuel processing of metals

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB205543A (en) * 1922-07-12 1923-10-12 James Reuben Rose Gaseous fuel
GB294958A (en) * 1927-08-02 1929-11-11 Koku Kenkyujo Method of reducing inflammability of hydrogen
GB371108A (en) * 1930-03-06 1932-04-21 British Thomson Houston Co Ltd Improvements in or relating to the manufacture of combustible gas and apparatus therefor
GB377193A (en) * 1931-04-16 1932-07-18 James Yate Johnson Improvements in the separation of unsaturated hydrocarbons from gas mixtures containing the same
GB976700A (en) * 1962-11-07 1964-12-02 Ruhrgas Ag Improvements in the supply of combustible gas from a gas network
GB1142941A (en) * 1965-02-16 1969-02-12 Whessoe Ltd Improvements in and relating to gas producing
EP0021736A2 (en) * 1979-06-27 1981-01-07 Imperial Chemical Industries Plc Catalytic process involving carbon monoxide and hydrogen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB158633A (en) * 1919-11-05 1921-02-07 Roy Hutchison Brownlee Improvements relating to combustible gaseous compositions, especially for use in cutting, welding and the like

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB205543A (en) * 1922-07-12 1923-10-12 James Reuben Rose Gaseous fuel
GB294958A (en) * 1927-08-02 1929-11-11 Koku Kenkyujo Method of reducing inflammability of hydrogen
GB371108A (en) * 1930-03-06 1932-04-21 British Thomson Houston Co Ltd Improvements in or relating to the manufacture of combustible gas and apparatus therefor
GB377193A (en) * 1931-04-16 1932-07-18 James Yate Johnson Improvements in the separation of unsaturated hydrocarbons from gas mixtures containing the same
GB976700A (en) * 1962-11-07 1964-12-02 Ruhrgas Ag Improvements in the supply of combustible gas from a gas network
GB1142941A (en) * 1965-02-16 1969-02-12 Whessoe Ltd Improvements in and relating to gas producing
EP0021736A2 (en) * 1979-06-27 1981-01-07 Imperial Chemical Industries Plc Catalytic process involving carbon monoxide and hydrogen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6099294A (en) * 1996-07-17 2000-08-08 Azatyan; Vylen Vagarshovich Method of regulating the oxidation of hydrogen in air, including the transition to combustion, the intensity of combustion, the transition from combustion to explosion and the intensity of explosion
WO2011155854A1 (en) * 2010-06-10 2011-12-15 Chung Dominic N Jr System and method for onsite on-demand production and instant utilization of a safely usable conditioned mix of water-derived hydrogen and oxygen gases
CN103320190A (en) * 2013-06-25 2013-09-25 苍溪县大通天然气投资有限公司 Welding and cutting gas and preparation method thereof
CN103320190B (en) * 2013-06-25 2015-01-21 苍溪县大通天然气投资有限公司 Welding and cutting gas and preparation method thereof
US20220306954A1 (en) * 2017-11-17 2022-09-29 Clayton ORIVAM DE MORAIS Oxy fuel gas mixtures and methods for use
US11920097B2 (en) * 2017-11-17 2024-03-05 Praxair Technology, Inc. Oxy fuel gas mixtures and methods for use

Also Published As

Publication number Publication date
GB8317257D0 (en) 1983-07-27
JPS591594A (en) 1984-01-06
FR2529222A1 (en) 1983-12-30
DE3322362A1 (en) 1983-12-29

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)