Classifications

• • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
  • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
  • C10L3/02—Compositions containing acetylene

Definitions

• the invention relates to acetylene for autogenous welding or cutting according to the preamble of claim 1.
• acetylene In oxyacetylene welding or cutting, acetylene is used to a considerable extent as the fuel gas, since it delivers the highest heat of formation per unit of mass of all hydrocarbons. It can be used to achieve the highest combustion temperature, the highest combustion rate and, because of the highest possible flow rate, the best heat transfer from the flame to the workpiece.
• acetylene Because of its chemical structure, acetylene must be stored differently from the other gases. At ambient temperature, acetylene is usually transported and stored in steel bottles. To prevent spontaneous decay of acetylene starting at around 300 ° C, these steel bottles are completely filled with a porous mass, such as diatomaceous earth or pumice stone, which in turn contains a solvent to absorb the acetylene.
• the porous mass has two functions. On the one hand, it is intended to bring acetylene decomposition initiated from the outside to a standstill and, on the other hand, to absorb the filled solvent, usually acetone, in a sponge-like manner and to hold it as evenly as possible distributed over the entire bottle space.
• the filling of the acetylene steel bottle takes up to 10 hours or more, depending on the outside temperature, the relative weight increase decreasing with increasing filling time of the acetylene bottle due to increasing saturation of the solvent.
• the invention is therefore based on the object of creating a fuel gas for autogenous welding or cutting, which leads to the same results in autogenous welding or cutting and in which the filling time can be reduced considerably.
• ethene preferably 10% to 15% ethene
• the acetylene bottle is preferably loaded first with acetylene and then with a proportion of 5 to 25% ethene.

Landscapes

• Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Filling Or Discharging Of Gas Storage Vessels (AREA)
• Arc Welding In General (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=7796844

Family Applications (1)

Country Status (3)

Cited By (3)

Family Cites Families (11)

• 1996
  • 1996-06-13 DE DE19623583A patent/DE19623583A1/de not_active Withdrawn
• 1997
  • 1997-05-07 EP EP97107493A patent/EP0812898A3/fr not_active Withdrawn
  • 1997-05-23 ZA ZA9704548A patent/ZA974548B/xx unknown

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