EP0686180A1 - Procede permettant de produire du coke pour la siderurgie - Google Patents

Procede permettant de produire du coke pour la siderurgie

Info

Publication number
EP0686180A1
EP0686180A1 EP94909066A EP94909066A EP0686180A1 EP 0686180 A1 EP0686180 A1 EP 0686180A1 EP 94909066 A EP94909066 A EP 94909066A EP 94909066 A EP94909066 A EP 94909066A EP 0686180 A1 EP0686180 A1 EP 0686180A1
Authority
EP
European Patent Office
Prior art keywords
coke
hydrogenation
coal
vacuum
binder
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Withdrawn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
EP94909066A
Other languages
German (de)
English (en)
Inventor
Joachim F. Meckel
Friedrich RÖSNER
Friedhelm Kerstan
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.)
Veba Oel Technologie und Automatisierung GmbH
Original Assignee
Veba Oel Technologie und Automatisierung 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 Veba Oel Technologie und Automatisierung GmbH filed Critical Veba Oel Technologie und Automatisierung GmbH
Publication of EP0686180A1 publication Critical patent/EP0686180A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
    • C10B57/06—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives

Definitions

  • the invention relates to a method for producing coke for the iron or steel industry, in particular cast iron reok coke.
  • This binding material is particularly indispensable when foundry coke with a high carbon content is to be produced, since then coke breeze is also used as an essential input coal component.
  • the petroleum-based pitch is comparatively expensive.
  • the invention extends, inter alia, the basis of the binders which can be used and, preferably, uses a particularly inexpensive binder which is as little harmful to health as possible.
  • the binder according to the invention leads to the same coke properties as when using so-called petropech, the binder according to the invention being considerably cheaper and containing extremely little carcinogenic ingredients.
  • the method according to the invention can also be used successfully in the production of blast furnace coke.
  • the decisive factor is the additive in conjunction with the other hydrogenation feedstocks, to which the additive is preferably added in 1 to 3% by weight, based on the entire hydrogenation feedstock.
  • This additive consists of porous carbon bodies which, in particular, consist of carbon-based material and whose inner surface area is as few as possible a few hundred, typically 300 2 m / g.
  • this additive not only has a reaction-stabilizing and quality-increasing effect on the hydrogenation products, but also acts as a constituent of the vacuum hydrogenation residue as a scaffold for the coke structure in the coking process according to the invention.
  • Porous carbon bodies can be produced in a wide variety of ways and are generally known; however, their effects on the quality of coke, in particular for the iron / steel industry in connection with the process according to the invention, were in no way foreseeable.
  • the hydrogenation of petroleum and petroleum-derived products, such as heavy oils and vacuum residues is known per se and, inter alia, in the book of hydrogenation technology "Catalytic pressure hydrogenation of coal, tars and mineral oils” by Dr. Walter Krönig, Springer-Verlag, 1950.
  • the hydrogenation conditions vary depending on the feed to be hydrogenated. In any case, it is carried out with the addition of hydrogen at elevated pressure and temperature, typical reaction conditions being 100 to 300 bar system pressure at temperatures between 200 and 500 ° C. wear.
  • This high-pressure hydrogenation is preferably carried out in a so-called bottom phase reactor.
  • the product stream leaving the bottom phase reactor consists of oils, solids and gases and is subsequently described, for. B. in a hot separator, separated into two phases, namely a top product and a bottom product.
  • the bottom product is separated from distillable oils in a subsequent vacuum column (vacuum hydrogenation residue).
  • the use of the hydrogenation residue which is obtained in the hydrogenation by the so-called VCC process is particularly preferred.
  • the latest status of the VCC process was presented at the DGMK main conference in 1990 in Weg / estal under the title "New aspects of the VCC process" by Dr. Klaus Niemann published. There is therefore no need to describe it here.
  • a large-scale VCC plant with 95% conversion processes the starting materials shown in Table 1 and produces the products shown in Table 2.
  • the feedstocks are specified in Table 3 and the products in Table 4.
  • the solidified vacuum hydrogenation residue from the vacuum column to be used according to the invention has the chemical-physical properties and grains shown in Table 5 and was subsequently used in a large-scale test on a coking plant as a binder of the input coal, consisting of a mixture of
  • Coke output could be increased by the invention; as Table 6 makes clear.
  • the binder according to the invention contains surprisingly little polycyclic aromatic hydrocarbons.
  • porous carbon body made of carbon-derived 2 material with an inner surface of about 300 m / g (practically not changed by the hydrogenation, as far as can be seen)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Coke Industry (AREA)

Abstract

L'invention concerne un procédé permettant de produire du coke pour la sidérurgie, notamment du coke de fonderie, en mélangeant de la pâte à coke et environ 0,5 à 10 % en poids, par rapport à la pâte à coke exempte d'eau et de cendres, d'un liant, puis en procédant à une opération de cokéfaction. L'invention vise à produire un coke de réactivité relativement faible, ayant une densité unitaire aussi élevée que possible, une teneur aussi grande que possible en carbone et des morceaux aussi grands que possible. On utilise comme liant un résidu d'hydrogénation sous vide résultant de la phase distillation sous vide de l'hydrogénation, lorsque des résidus courts ou des huiles lourdes issus de pétrole brut sont hydrogénés sous apport d'un additif composé de corps carbonés poreux, notamment d'un matériau dérivé du charbon.
EP94909066A 1993-02-26 1994-02-25 Procede permettant de produire du coke pour la siderurgie Withdrawn EP0686180A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4306057A DE4306057A1 (de) 1993-02-26 1993-02-26 Verfahren zum Herstellen von Gießereikoks
DE4306057 1993-02-26
PCT/EP1994/000555 WO1994019425A1 (fr) 1993-02-26 1994-02-25 Procede permettant de produire du coke pour la siderurgie

Publications (1)

Publication Number Publication Date
EP0686180A1 true EP0686180A1 (fr) 1995-12-13

Family

ID=6481457

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94909066A Withdrawn EP0686180A1 (fr) 1993-02-26 1994-02-25 Procede permettant de produire du coke pour la siderurgie

Country Status (6)

Country Link
EP (1) EP0686180A1 (fr)
JP (1) JPH08509509A (fr)
AU (1) AU6206794A (fr)
CA (1) CA2157052A1 (fr)
DE (2) DE4306057A1 (fr)
WO (1) WO1994019425A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745161C (de) * 1939-01-01 1944-02-28 Ig Farbenindustrie Ag Verfahren zur Gewinnung von Teer und festem Schwelkoks
DE1696503A1 (de) * 1961-10-06 1970-05-14 Great Lakes Carbon Corp Verfahren zur Herstellung von metallurgischem Koks
CA1114765A (fr) * 1978-04-28 1981-12-22 Keith Belinko Production de coke metallurgique a partir de houilles a faible coefficient de cokefaction a l'aide de residus tires du traitement du bitume extrait des sables bitumineux
US4999328A (en) * 1988-06-28 1991-03-12 Petro-Canada Inc. Hydrocracking of heavy oils in presence of petroleum coke derived from heavy oil coking operations

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9419425A1 *

Also Published As

Publication number Publication date
WO1994019425A1 (fr) 1994-09-01
DE4490891D2 (de) 1997-07-31
CA2157052A1 (fr) 1994-09-01
DE4306057A1 (de) 1994-09-08
JPH08509509A (ja) 1996-10-08
AU6206794A (en) 1994-09-14

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