WO1994019425A1 - Verfahren zum herstellen von koks für die eisen-/stahlindustrie - Google Patents
Verfahren zum herstellen von koks für die eisen-/stahlindustrie Download PDFInfo
- Publication number
- WO1994019425A1 WO1994019425A1 PCT/EP1994/000555 EP9400555W WO9419425A1 WO 1994019425 A1 WO1994019425 A1 WO 1994019425A1 EP 9400555 W EP9400555 W EP 9400555W WO 9419425 A1 WO9419425 A1 WO 9419425A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coke
- hydrogenation
- coal
- vacuum
- binder
- Prior art date
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
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4490891T DE4490891D2 (de) | 1993-02-26 | 1994-02-25 | Verfahren zum Herstellen von Koks für die Eisen-/Stahlindustrie |
EP94909066A EP0686180A1 (de) | 1993-02-26 | 1994-02-25 | Verfahren zum herstellen von koks für die eisen-/stahlindustrie |
AU62067/94A AU6206794A (en) | 1993-02-26 | 1994-02-25 | Method of producing coke for the iron and steel industry |
JP6518678A JPH08509509A (ja) | 1993-02-26 | 1994-02-25 | 製鉄/製鋼産業向けコークスの製法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4306057A DE4306057A1 (de) | 1993-02-26 | 1993-02-26 | Verfahren zum Herstellen von Gießereikoks |
DEP4306057.9 | 1993-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994019425A1 true WO1994019425A1 (de) | 1994-09-01 |
Family
ID=6481457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/000555 WO1994019425A1 (de) | 1993-02-26 | 1994-02-25 | Verfahren zum herstellen von koks für die eisen-/stahlindustrie |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0686180A1 (de) |
JP (1) | JPH08509509A (de) |
AU (1) | AU6206794A (de) |
CA (1) | CA2157052A1 (de) |
DE (2) | DE4306057A1 (de) |
WO (1) | WO1994019425A1 (de) |
Citations (4)
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 |
US4234387A (en) * | 1978-04-28 | 1980-11-18 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Energy, Mines And Resources | Coking poor coking coals and hydrocracked tar sand bitumen binder |
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 |
-
1993
- 1993-02-26 DE DE4306057A patent/DE4306057A1/de not_active Withdrawn
-
1994
- 1994-02-25 EP EP94909066A patent/EP0686180A1/de not_active Withdrawn
- 1994-02-25 JP JP6518678A patent/JPH08509509A/ja active Pending
- 1994-02-25 CA CA002157052A patent/CA2157052A1/en not_active Abandoned
- 1994-02-25 AU AU62067/94A patent/AU6206794A/en not_active Abandoned
- 1994-02-25 WO PCT/EP1994/000555 patent/WO1994019425A1/de not_active Application Discontinuation
- 1994-02-25 DE DE4490891T patent/DE4490891D2/de not_active Expired - Fee Related
Patent Citations (4)
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 |
US4234387A (en) * | 1978-04-28 | 1980-11-18 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Energy, Mines And Resources | Coking poor coking coals and hydrocracked tar sand bitumen binder |
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 |
Also Published As
Publication number | Publication date |
---|---|
AU6206794A (en) | 1994-09-14 |
DE4306057A1 (de) | 1994-09-08 |
DE4490891D2 (de) | 1997-07-31 |
EP0686180A1 (de) | 1995-12-13 |
JPH08509509A (ja) | 1996-10-08 |
CA2157052A1 (en) | 1994-09-01 |
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