EP0412511A1 - Procédé de préparation d'un mélange de combustible gazeux - Google Patents

Procédé de préparation d'un mélange de combustible gazeux Download PDF

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Publication number
EP0412511A1
EP0412511A1 EP90115179A EP90115179A EP0412511A1 EP 0412511 A1 EP0412511 A1 EP 0412511A1 EP 90115179 A EP90115179 A EP 90115179A EP 90115179 A EP90115179 A EP 90115179A EP 0412511 A1 EP0412511 A1 EP 0412511A1
Authority
EP
European Patent Office
Prior art keywords
fuel gas
gas mixture
property
carried out
determined
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.)
Ceased
Application number
EP90115179A
Other languages
German (de)
English (en)
Inventor
Heinz Dipl.-Ing. Sadjina
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of EP0412511A1 publication Critical patent/EP0412511A1/fr
Ceased 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
    • 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

Definitions

  • the invention relates to a method for producing a two-component or multi-component fuel gas mixture.
  • the invention aims to provide fuel gas mixtures which generally contain acetylene, in particular at the user's site. As is known, there is a risk with such mixtures that they will disintegrate or even decompose explosively at a comparatively low excess pressure and relatively low ignition energy. The preparation of such mixtures is therefore associated with particular difficulties.
  • the object of the present invention was therefore to provide a method with which fuel gases with different compositions and properties can be made available in a favorable and changeable manner.
  • This object is achieved according to the invention in that the necessary fuel gas components are provided separately and mixed with regard to the desired fuel gas mixture property, taking into account safety-related conditions.
  • This is advantageously carried out automatically, in such a way that a computing and setting unit determines and sets the settings for the gas supply resulting from the desired fuel gas property.
  • the method according to the invention makes it possible to provide tailor-made fuel gases in a wide range. It is essential that the desired fuel gas properties are based on theoretical relationships and key figures (eg densities, masses, energy content and the functional relationships of these variables) Gas mixtures) is precisely defined (or even several properties) and based on this knowledge and thus the possibility of recalculation, the setting of the fuel gas mixture takes into account safety-related conditions.
  • Target properties for a fuel gas mixture are, for example, the fuel gas density, primary flame output, flame temperature, ignition speed, flame stability, gas mixture stability and compressibility.
  • characteristic quantities are measured in the gas mixture generated in accordance with the determined presetting and fed to the computing and setting unit, the resulting fuel gas property being determined and this being compared with the predetermined target value, whereupon, if necessary, a corresponding readjustment the supply of the starting gases takes place.
  • this variant of the method according to the invention has a mode of operation which is particularly exact with regard to compliance with the desired fuel gas property. It is particularly advantageous if the desired fuel gas property can be reliably determined with less measuring and computing effort.
  • a further advantageous embodiment in particular for gas mixtures which are critical with regard to safety - high acetylene contents - consists in continuously determining safety-relevant data of the mixed gas and these must be within predetermined limits in order to maintain the mixed gas generation.
  • the oxygen carrier i.e. the oxygen-supplying gas, for example air, oxygen or ozone
  • the oxygen-supplying gas for example air, oxygen or ozone
  • the possibility of influencing the fuel gas property with inert gases within the process according to the invention may be advantageous, i.e. to bring about a reduction in flame temperature, for example by adding nitrogen to the fuel gas mixture.
  • the numbers 1, 2 and 3 initially generally depict gas sources which supply the individual starting fuel gases or fuel gas components. These are connected via lines 4, 5 and 6 to a gas mixer 7, to which a consumer 13 is in turn connected via a line 11.
  • a gas mixer 7 to which a consumer 13 is in turn connected via a line 11.
  • measuring and control elements 8, 9, 10 and 12 which on the one hand measure certain data and on the other hand can regulate the gas flow flowing through them.
  • a computing and setting unit 15 is connected to all existing measuring and control elements and adjusts these in accordance with entered or determined data and by means of signals generated therefrom and on the other hand can be supplied by them with measured and control values from the respective lines.
  • propane contributes to the stabilization and compressive strength of the mixture and should therefore be contained as much as possible.
  • This gas mixture can be programmed and delivered immediately with the automated version of the present invention programmed according to the present problem - the target property is the fuel gas density, relationships between the densities of the individual gases and the gas mixture as well as between the densities and the volumes and density values are programmed, since the appropriate setting of the setting elements 8, 9, 10 is also carried out automatically.
  • these setting elements advantageously consist of the mass flow meters which have recently been developed to perfection and which operate with high precision and reliably. In certain applications, however, volume-determining flow meters can also be suitable.
  • pressure values are also maintained via the setting elements, which are acceptable from a safety point of view for a fuel gas mixture of this composition.
  • this pressure range extends up to the order of 8 bar overpressure, although in view of the legal provisions, work is usually considerably lower. Pressures below 2 bar are the standard. If higher pressures are required, however, a pressure increase downstream of the fuel gas mixture can be provided, for example. In principle, higher pressures are also possible within the process.
  • the present method the possibility of a highly flexible fuel gas supply from two or more starting fuel gases is obtained while taking into account the safety-related boundary conditions for these fuel gases.

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  • 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)
  • Feeding And Controlling Fuel (AREA)
  • Regulation And Control Of Combustion (AREA)
EP90115179A 1989-08-10 1990-08-07 Procédé de préparation d'un mélange de combustible gazeux Ceased EP0412511A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3926418 1989-08-10
DE19893926418 DE3926418A1 (de) 1989-08-10 1989-08-10 Verfahren zur herstellung eines brenngasgemisches

Publications (1)

Publication Number Publication Date
EP0412511A1 true EP0412511A1 (fr) 1991-02-13

Family

ID=6386851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115179A Ceased EP0412511A1 (fr) 1989-08-10 1990-08-07 Procédé de préparation d'un mélange de combustible gazeux

Country Status (2)

Country Link
EP (1) EP0412511A1 (fr)
DE (1) DE3926418A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1069175A2 (fr) * 1999-07-12 2001-01-17 Scotoil Group plc Usine de gaz
EP1102187A2 (fr) * 1999-11-17 2001-05-23 Ethyl Corporation Méthode pour la prédiction et l'optimisation de la production d'un carburant
EP1803495A1 (fr) * 2006-01-02 2007-07-04 Linde Aktiengesellschaft Procédé de fabrication d'un mélange gazeux sous pression

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220460A (en) * 1979-02-05 1980-09-02 Western Electric Company, Inc. Vapor delivery system and method
EP0216382A2 (fr) * 1985-09-26 1987-04-01 Union Carbide Corporation Système d'approvisionnement d'un gaz applicable pour une demande variable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220460A (en) * 1979-02-05 1980-09-02 Western Electric Company, Inc. Vapor delivery system and method
EP0216382A2 (fr) * 1985-09-26 1987-04-01 Union Carbide Corporation Système d'approvisionnement d'un gaz applicable pour une demande variable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1069175A2 (fr) * 1999-07-12 2001-01-17 Scotoil Group plc Usine de gaz
EP1069175A3 (fr) * 1999-07-12 2002-05-29 Scotoil Group plc Usine de gaz
EP1102187A2 (fr) * 1999-11-17 2001-05-23 Ethyl Corporation Méthode pour la prédiction et l'optimisation de la production d'un carburant
EP1102187A3 (fr) * 1999-11-17 2005-04-27 Ethyl Corporation Méthode pour la prédiction et l'optimisation de la production d'un carburant
EP1803495A1 (fr) * 2006-01-02 2007-07-04 Linde Aktiengesellschaft Procédé de fabrication d'un mélange gazeux sous pression

Also Published As

Publication number Publication date
DE3926418A1 (de) 1991-02-14

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