EP0138235B1 - Procédé de fabrication de brai thermiquement stable et d'huile à partir de résidus aromatiques de la pétrochimie et son utilisation - Google Patents

Procédé de fabrication de brai thermiquement stable et d'huile à partir de résidus aromatiques de la pétrochimie et son utilisation Download PDF

Info

Publication number
EP0138235B1
EP0138235B1 EP84200680A EP84200680A EP0138235B1 EP 0138235 B1 EP0138235 B1 EP 0138235B1 EP 84200680 A EP84200680 A EP 84200680A EP 84200680 A EP84200680 A EP 84200680A EP 0138235 B1 EP0138235 B1 EP 0138235B1
Authority
EP
European Patent Office
Prior art keywords
residues
aromatic
pitch
residue
pressure
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
EP84200680A
Other languages
German (de)
English (en)
Other versions
EP0138235A1 (fr
Inventor
Heinrich Dr. Hörmeyer
Jürgen Dr. Stadelhofer
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.)
Rain Carbon Germany GmbH
Original Assignee
Ruetgerswerke AG
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 Ruetgerswerke AG filed Critical Ruetgerswerke AG
Publication of EP0138235A1 publication Critical patent/EP0138235A1/fr
Application granted granted Critical
Publication of EP0138235B1 publication Critical patent/EP0138235B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C3/00—Working-up pitch, asphalt, bitumen
    • C10C3/005—Working-up pitch, asphalt, bitumen by mixing several fractions (also coaltar fractions with petroleum fractions)

Definitions

  • the invention relates to a method for producing thermally stable pitches from highly aromatic, unsaturated compounds containing petrochemical residues with an increased yield of distillable aromatic oils.
  • Pitches are usually stored in liquid form for a long time before they are processed, generally at temperatures around 200 ° C. In the case of hard coal tar pitches, no change in the properties is to be expected at these temperatures, but in the case of pitch-like residues from the petrochemical workup, such as. B. from unsaturated compounds containing aromatic residues from high-temperature pyrolysis and aromatic extraction of mineral oil-derived fractions.
  • the hydrogenated residues with a relatively low aromatic content of about 40% used in this process have a high boiling point and therefore cannot be separated from the residues by distillation. In addition, they would reduce the aromatic content of highly aromatic pitches.
  • the object was therefore to treat highly aromatic, unsaturated compound-containing residues of the petrochemical workup by a simple process, avoiding the disadvantages of the processes mentioned, so that a thermally stable pitch and aromatic mixtures are obtained from them in high yield by distillation.
  • the object is achieved in that the highly aromatic residues containing unsaturated compounds from mineral oil processing are mixed with residues boiling between 150 and 280 ° C. from the hydrogenating refining of aromatic oils in a ratio of 1: 0.02 to 1: 0.25 and are heated to a temperature between 350 and 400 ° C under the autogenous pressure which is formed, and the reaction product is rectified under atmospheric or reduced pressure in order to obtain aromatic fractions and a pitch with a Krämer-Sarnow softening point of 50 ° C and higher.
  • Aromatic extracts and residues from the high-temperature pyrolysis of mineral oil fractions with an initial boiling point of 200 ° C. and higher, in particular from the steam pyrolysis of gasoline, are used as highly aromatic residues for the production of olefins.
  • the aromatic fractions obtained can be formed into pure aromatics such as, for example, without the formation of polymerization residues in the same way as coal tar tractions.
  • the pitch obtained by the process according to the invention is distinguished by a low content of quinoline-insoluble constituents (QI) and a high coking residue. It is therefore suitable for the production of highly anistropic coke for graphite electrodes and carbon fibers as well as for use as an electrode binder and impregnating agent for carbon molded articles.
  • QI quinoline-insoluble constituents
  • the pitch (A) was treated under extreme conditions at 250 ° C. in the presence of air for one week (168 h).
  • a commercially available impregnating pitch of petro origin (B) and a pitch (C) which were obtained in the same way as the pitch (A), but without the addition of hydroaromatics, were subjected to the same thermal aging.
  • the results of the analyzes are shown in Table 2.
  • pitch (A) has a significantly higher coking residue.
  • pitch (A) has a significantly higher coking residue.
  • hydrogenated stabilized pitch obviously smaller amounts of slightly cracking components remain in the impregnating agent, so that less escapes from the impregnated material during the firing process and the impregnating effect is improved.
  • the hydrogenated pitch (A) shows pitch (C) a tolerable increase in viscosity and insolubility, while pitch (B) increases in viscosity so much that satisfactory processability can no longer be expected.
  • the figure shows the filtration curves for the pitch (A) produced by the process according to the invention and the pitch (C) produced without addition of hydroaromatics.
  • the pitch (B) had reciprocal filter capacities of at least 50 cm 2 min / g, aged 90 cm 2 min / g when the filter was quickly blocked.
  • pitch (A) Both untreated and aged, the values for pitch (A) are more favorable than for pitch (C).
  • the filter in the aged pitch (C) is blocked after 6.5 g / cm 2 flow, while larger amounts can be filtered by pitch (A).
  • the pitch (A) produced according to the invention has significant advantages over the comparative pitch (B) in terms of thermal resistance and filterability, as well as over the comparative pitch (C) in terms of coking residue and filterability after aging.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Inorganic Fibers (AREA)

Claims (5)

1. Procédé de préparation de brais thermiquement stables et d'huiles à partir de résidus de traitement pétrochimique contenant des composés insaturés hautement aromatiques, caractérisé par le fait que les résidus hautement aromatiques sont mélangés en un rapport de 1 : 0,02 à 1 : 0,25 avec des résidus de point d'ébullition compris entre 150 et 280 °C provenant du raffinage hydrogénant d'huiles aromatiques, puis portés sous la pression propre qui s'établit jusqu'à une température comprise entre 350 et 400 °C, le produit de réaction étant rectifié sous pression atmosphérique ou réduite en vue d'obtenir des fractions aromatiques et un brai ayant un point de ramolissement selon Krâmer-Sarnow de 50 °C et plus.
2. Procédé selon la revendication 1, caractérisé par le fait qu'en tant que résidu hautement aromatique, on utilise le résidu de point d'ébullition supérieur à 200 °C provenant de la pyrolyse en phase d'essence pour la fabrication d'oléfines.
3. Procédé selon la revendication 1, caractérisé par le fait qu'en tant que résidus provenant du raffinage hydrogénant d'huiles aromatiques, on utilise un résidu de raffinage sous pression ayant une teneur en tétraline d'au moins 30 % en poids.
4. Application du brai obtenu conformément à la revendication 1, en tant qu'agent liant et d'imprégnation pour des corps de forme en carbone.
5. Application de la fraction aromatique obtenue conformément à la revendication 1, à l'obtention de produits aromatique purs.
EP84200680A 1983-09-27 1984-05-14 Procédé de fabrication de brai thermiquement stable et d'huile à partir de résidus aromatiques de la pétrochimie et son utilisation Expired EP0138235B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334842 1983-09-27
DE19833334842 DE3334842A1 (de) 1983-09-27 1983-09-27 Verfahren zur herstellung thermisch stabiler peche und oele aus hocharomatischen petrochemischen rueckstaenden und deren verwendung

Publications (2)

Publication Number Publication Date
EP0138235A1 EP0138235A1 (fr) 1985-04-24
EP0138235B1 true EP0138235B1 (fr) 1986-09-10

Family

ID=6210133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84200680A Expired EP0138235B1 (fr) 1983-09-27 1984-05-14 Procédé de fabrication de brai thermiquement stable et d'huile à partir de résidus aromatiques de la pétrochimie et son utilisation

Country Status (4)

Country Link
EP (1) EP0138235B1 (fr)
JP (1) JPS6092388A (fr)
DE (2) DE3334842A1 (fr)
ES (1) ES533880A0 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2023233847A1 (fr) 2022-06-02 2023-12-07

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953513A (en) * 1956-03-05 1960-09-20 Exxon Research Engineering Co Hydrogen donor diluent cracking process
DE1815568A1 (de) * 1968-12-19 1970-06-25 Ruetgerswerke Ag Verfahren zur Gewinnung von aromatischen Kohlenwasserstoffen aus aromatenreichen OElen mit einem hohen Gehalt an ungesaettigten Verbindungen
JPS5512158A (en) * 1978-07-14 1980-01-28 Nippon Oil Co Ltd Preparation of petroleum binder pitch
US4397830A (en) * 1981-04-13 1983-08-09 Nippon Oil Co., Ltd. Starting pitches for carbon fibers
US4414095A (en) * 1981-06-12 1983-11-08 Exxon Research And Engineering Co. Mesophase pitch using steam cracker tar (CF-6)

Also Published As

Publication number Publication date
JPS6092388A (ja) 1985-05-23
DE3460676D1 (en) 1986-10-16
ES8503312A1 (es) 1985-03-01
ES533880A0 (es) 1985-03-01
EP0138235A1 (fr) 1985-04-24
DE3334842A1 (de) 1985-04-04

Similar Documents

Publication Publication Date Title
DE69117776T2 (de) Verfahren zur aufarbeitung von dampfcrackteerölen
DE2953190C2 (fr)
DE2454197A1 (de) Verfahren zur herstellung eines synthetischen schmieroels mit hohem viskositaetsindex
EP0009809A1 (fr) Procédé de production d'oléfines
DE3107563C2 (fr)
DE2834475C2 (fr)
DE2927457C2 (fr)
DE3603883A1 (de) Verfahren zur herstellung von steinkohlenteerpech-rohstoffen mit verbesserten eigenschaften und deren verwendung
DE1294366B (de) Verfahren zur thermischen Spaltung von Kohlenwasserstoffen
DE1949628C3 (de) Verfahren zur Herstellung von Elektrodenpech und eines Ausgangsmaterials für die Rußherstellung
EP0138235B1 (fr) Procédé de fabrication de brai thermiquement stable et d'huile à partir de résidus aromatiques de la pétrochimie et son utilisation
DE3782545T2 (de) Verfahren zur erzeugung von leichten produkten und brennstoffen fuer herkoemmliche nutzung aus schwermetall- und schwefelreichen erdoelrueckstaenden.
DE2557913C2 (fr)
EP0236675B1 (fr) Procédé pour produire du brai modifié et son application
DE2454978A1 (de) Bindepech und verfahren zu seiner herstellung
DE1256221C2 (de) Verfahren zur Aufarbeitung von Steinkohlenteerpech
DE1645728B2 (de) Verfahren zur herstellung eines schweren aromatischen loesungsmittels
DE1959869C3 (de) Verfahren zur Herstellung einer Schmierölfraktion mit erhöhtem Viskositätsindex
DE1594728A1 (de) Bindemittel fuer den Strassenbau
DE1200459B (de) Verfahren zum Vergueten von schweren Kohlenwasserstoffen
DE1443096A1 (de) Herstellung von Naphtalin durch Entalkylierung von Kohlenwasserstoffen
DE977225C (de) Verfahren zur Herstellung eines schweren Heizoels
DE2166203B2 (de) Verfahren zur Herstellung von für Elektrodenbinde- bzw. imprägniermittel geeigneten Pechen. Ausscheidung aus: 2121458
DE696083C (de) Verfahren zur katalytischen Druckhydrierung von hochsiedenden fluessigen oder halbfesten Kohlenwasserstoffoelen, die Asphalte und bzw. oder Harze enthalten
DE2608466C2 (de) Verfahren zur Herstellung eines Petroleumpechbindemittels für die Herstellung von Kohlenstoffelektroden

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL

ITCL It: translation for ep claims filed

Representative=s name: BARZANO' E ZANARDO ROMA S.P.A.

17P Request for examination filed

Effective date: 19850227

TCNL Nl: translation of patent claims filed
EL Fr: translation of claims filed
17Q First examination report despatched

Effective date: 19860224

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT NL

REF Corresponds to:

Ref document number: 3460676

Country of ref document: DE

Date of ref document: 19861016

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930603

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940504

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940511

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19940531

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19940711

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950514

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19950531

BERE Be: lapsed

Owner name: RUTGERSWERKE A.G.

Effective date: 19950531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19951201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950514

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19951201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960229

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST