EP0142876A2 - Verfahren zur Herstellung von synthetischem Brennstoff, synthetischen Komponenten für Brennstoffe und daraus erhaltenes Produkt - Google Patents

Verfahren zur Herstellung von synthetischem Brennstoff, synthetischen Komponenten für Brennstoffe und daraus erhaltenes Produkt Download PDF

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Publication number
EP0142876A2
EP0142876A2 EP84201445A EP84201445A EP0142876A2 EP 0142876 A2 EP0142876 A2 EP 0142876A2 EP 84201445 A EP84201445 A EP 84201445A EP 84201445 A EP84201445 A EP 84201445A EP 0142876 A2 EP0142876 A2 EP 0142876A2
Authority
EP
European Patent Office
Prior art keywords
synthetic
fuels
fuel
preparing
decarboxylation
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.)
Granted
Application number
EP84201445A
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English (en)
French (fr)
Other versions
EP0142876A3 (en
EP0142876B1 (de
Inventor
Ermanno Girardi
Riccardo Mansani
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.)
Eni SpA
Original Assignee
Eni SpA
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 Eni SpA filed Critical Eni SpA
Priority to AT84201445T priority Critical patent/ATE33266T1/de
Publication of EP0142876A2 publication Critical patent/EP0142876A2/de
Publication of EP0142876A3 publication Critical patent/EP0142876A3/en
Application granted granted Critical
Publication of EP0142876B1 publication Critical patent/EP0142876B1/de
Expired 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only

Definitions

  • This invention relates to a method for preparing a synthetic fuel and/or synthetic components for fuels, and the product obtained by said method.
  • a large percentage of the product of this oxidation consists of polycarboxylic acid mixtures.
  • Examples of methods for producing carboxylic acids by oxidising coal include those described in French patent 1,347,213 and in German patents 841,140, 864,992 and 879,103.
  • the polycarboxylic acids obtained by known methods cannot be used as fuels because of their acidic nature, so that their use is practically limited to the chemical field.
  • polycarboxylic acid mixtures can be converted into fuels and/or components for fuels by transforming them into oleophilic compounds in a simple and economical manner.
  • polycarboxylic acid mixtures obtained by oxidising coal polycarboxylic acid mixtures of any origin can obviously be used for transformation into oleophilic compounds provided that their elementary compositions, molecular weight and acidity lie within the limits indicated hereinafter.
  • a first subject matter of the present invention is a method for transforming polycarboxylic acid mixtures into oleophilic compounds which can be used as synthetic fuel and/or synthetic components for fuels.
  • the method for preparing a synthetic fuel and/or synthetic components for fuels according to the present invention starts with a polycarboxylic acid mixture obtained in any manner, and is characterised by the polycarboxylic acids having the following elementary composition: carbon from 42% to 70% by weight hydrogen from 1.5% to 6% by weight oxygen from 14.0% to 52.7% by weight, a mean molecular weight of between 120 and 800, and an acidity of between 5 and 18 meq/g, and preferably between 8 and 14 meq/g, the mixture of polycarboxylic acids or their salts being subjected to decarboxylation which in the case of acids is carried out by heat treatment over catalysts constituted by transition metal oxides, and in the case of salts by simple heat treatment, the decarboxylated product being finally subjected to esterification with one or more alcohols or one or more olefins.
  • the polycarboxylic acids having the following elementary composition: carbon from 42% to 70% by weight hydrogen from 1.5% to 6% by weight oxygen from 14.0% to 52.
  • the decarboxylation can be effected by heating, in aqueous solution, for a time of between 10 and 30 minutes, preferably 20 minutes, to a temperature of between 300° and 350°C, preferably 315°C, in the presence of one or more alkaline and/or alkaline earth carbonates.
  • the decarboxylation can be effected in the absence of water at a temperature of between 350° and 550°C, preferably 500°C, for a time of between 10 and 30 minutes, preferably 20 minutes.
  • the esterification is preferably effected with alcohols comprising 1 to 10 carbon atoms, the alcohols being in H 2 SO 4 solution at a concentration of between 5% and 20% by weight, or with olefins comprising between 2 and 10 carbon atoms.
  • a second subject matter of the present invention is the synthetic fuel and/or the synthetic components for fuels, when obtained by the aforesaid method.
  • a third subject matter of the present invention is the fuel obtained by mixing the synthetic fuel and/or synthetic components according to the invention with products chosen from a medium petroleum distillate, a medium distillate from coal hydroliquefaction, the product of coal pyrolysis and particularly the mixture of benzene, toluene and xylenes, a fuel oil of petroleum origin, a mixture of aromatic hydrocarbons or a mixture of C 1 -C 10 aliphatic alcohols.

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Liquid Carbonaceous Fuels (AREA)
EP84201445A 1983-11-10 1984-10-09 Verfahren zur Herstellung von synthetischem Brennstoff, synthetischen Komponenten für Brennstoffe und daraus erhaltenes Produkt Expired EP0142876B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84201445T ATE33266T1 (de) 1983-11-10 1984-10-09 Verfahren zur herstellung von synthetischem brennstoff, synthetischen komponenten fuer brennstoffe und daraus erhaltenes produkt.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT23659/83A IT1205307B (it) 1983-11-10 1983-11-10 Metodo per la preparazione di un combustibile sintetico e/o componenti sintetici per combustibili e prodotto ottenuto con lo stesso
IT2365983 1983-11-10

Publications (3)

Publication Number Publication Date
EP0142876A2 true EP0142876A2 (de) 1985-05-29
EP0142876A3 EP0142876A3 (en) 1986-04-30
EP0142876B1 EP0142876B1 (de) 1988-03-30

Family

ID=11208955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201445A Expired EP0142876B1 (de) 1983-11-10 1984-10-09 Verfahren zur Herstellung von synthetischem Brennstoff, synthetischen Komponenten für Brennstoffe und daraus erhaltenes Produkt

Country Status (6)

Country Link
EP (1) EP0142876B1 (de)
AT (1) ATE33266T1 (de)
AU (1) AU562295B2 (de)
DE (1) DE3470175D1 (de)
IT (1) IT1205307B (de)
ZA (1) ZA848121B (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2701062C3 (de) * 1976-01-13 1987-06-19 Mitsubishi Gas Chemical Co., Inc., Tokio/Tokyo Verfahren zur Herstellung von Estern
FR2352049A1 (fr) * 1976-05-21 1977-12-16 Inst Francais Du Petrole Procede pour valoriser les effluents obtenus dans les syntheses du type fischer-tropsch

Also Published As

Publication number Publication date
IT1205307B (it) 1989-03-15
EP0142876A3 (en) 1986-04-30
AU3413684A (en) 1985-05-16
DE3470175D1 (en) 1988-05-05
IT8323659A0 (it) 1983-11-10
AU562295B2 (en) 1987-06-04
ATE33266T1 (de) 1988-04-15
EP0142876B1 (de) 1988-03-30
ZA848121B (en) 1985-06-26

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