EP0221061B1 - Method for the separation of water obtained form a coking process into a small high salt content fraction and a large low salt content fraction - Google Patents
Method for the separation of water obtained form a coking process into a small high salt content fraction and a large low salt content fraction Download PDFInfo
- Publication number
- EP0221061B1 EP0221061B1 EP85902990A EP85902990A EP0221061B1 EP 0221061 B1 EP0221061 B1 EP 0221061B1 EP 85902990 A EP85902990 A EP 85902990A EP 85902990 A EP85902990 A EP 85902990A EP 0221061 B1 EP0221061 B1 EP 0221061B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- salt content
- fraction
- receiver
- content fraction
- condensate
- 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
Links
- 150000003839 salts Chemical class 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000004939 coking Methods 0.000 title claims abstract description 8
- 238000000926 separation method Methods 0.000 title description 2
- 239000008346 aqueous phase Substances 0.000 claims abstract 2
- 238000001816 cooling Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 20
- 238000004140 cleaning Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 239000000571 coke Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
- C10K1/06—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials combined with spraying with water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/001—Purifying combustible gases containing carbon monoxide working-up the condensates
Definitions
- the invention relates to a method for separating the coal water obtained in the coking process into a small salt-rich and a large salt-poor fraction according to the preamble of claim 1.
- the approximately 800 ° C hot gas coming from the riser pipe is cooled in the receiver by circulating gas condensates to the dew point at approximately 80 ° C.
- the invention is therefore based on the object to remove the non-deposited fixed salts in the pre-coolers from the gas in the pre-coolers in order to obtain most of the water obtained in the coking without salt and after further cleaning steps as process water in the To be able to reduce coke oven operations.
- the invention will be described in more detail with reference to the drawing.
- the figure shows schematically the gas cleaning after the coke ovens.
- the circulation of the tar and water condensed in the template 1 takes place via line 2 to the tar separator 3 and further via line 4 back to the template 1.
- the gas flow enters the precooler 6 from the template 1 through the electrostatic filter 5.
- the outflow of the electrostatic filter 5 is conducted via line 7 into the template circuit, for example into the tar separator 3.
- a condensate is obtained in the pre-coolers 6, which is practically free of fixed salts and is further processed separately.
- Part of the precooler condensate is via line 8 in the template circuit, for. B. as shown here, returned to the template 1, since in addition to the coal water, the water vapor is condensed out, which was previously evaporated in the template 1 for cooling the hot raw gas.
- the amount of water drawn off from the supply circuit through line 9 can be freed of its volatile achad substances, for example, in a stripper, and also fixed ammonia when lime, sodium hydroxide solution or sodium carbonate are added, and can be removed after de-phenolization. Since this is a comparatively small amount of water, this solution can also be evaporated in order to obtain the fixed salts as a solid.
- the condensate obtained in the pre-coolers is freed of its volatile pollutants, if necessary after use in gas cleaning, and can be used after further biological cleaning, reverse osmosis, after de-phenolization or cleaning with activated carbon as process water, e.g. for coke quenching or as cooling water , used in the coking plant.
- fractional condensation of the gases is carried out in a number of precoolers 6 according to one embodiment of the invention.
- the gas in the first cooler is only cooled to such an extent that the condensed water (at around 70 ° C) can be used as process water.
- Ambient temperature becomes a second cooler sprinkled with tar or a tar-ammonia water mixture to avoid naphthalene deposits.
- the flow of the second cooler is then through line 8 in the template circuit, for. B. returned to template 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Electrostatic Separation (AREA)
- Industrial Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Auftrennung des beim Verkokungsprozeß anfallenden Kohlewassers in eine kleine salzreiche und eine große salzarme Fraktion gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for separating the coal water obtained in the coking process into a small salt-rich and a large salt-poor fraction according to the preamble of claim 1.
Bei der Verkokung von Kohle fallen im allgemeinen pro Tonne Kohle 140 I Kohlewasser an, die zu etwa 100 I aus der ursprünglichen Kohlenfeuchte stammen und zu etwa 40 I sich bei der Verkokung gebildet haben. Außerdem werden bei der Verkokung neben flüchtigen Schadstoffen, wie beispielsweise NH3, H2S und HCN, auch sogenannte fixe Salze, wie hauptsächlich z. B. NH4C1 gebildet, die sich im Gaskondensat lösen und durch desorptive Prozesse nicht daraus wieder entfernt werden können. Daher ist es bisher nicht möglich, das nach Reinigungsstufen, wie beispielsweise Entphenolung oder Strippen im Abtreiber, anfallende Gaskondensat wieder als Brauchwasser zu verwenden, weil seine Salzfracht auch nach dem Entbinden des fixen Ammoniaks mit Kalk oder Alkali unverändert hoch bleibt.When coking coal, 140 l of coal water are generally produced per ton of coal, about 100 l of which originate from the original coal moisture and about 40 l have formed during coking. In addition to volatile pollutants such as NH 3 , H 2 S and HCN, so-called fixed salts, such as mainly z. B. NH 4 C1 formed, which dissolve in the gas condensate and can not be removed from it by desorptive processes. Therefore, it has not been possible so far to use the gas condensate that occurs after cleaning stages, such as de-phenolization or stripping in the stripper, because its salt load remains unchanged even after the fixed ammonia has been released with lime or alkali.
Üblicherweise wird auf der Kokerei das aus dem Steigrohr kommende, etwa 800° C heiße Gas in der Vorlage durch im Kreislauf geführte Gaskondensate bis zum Taupunkt bei etwa 80°C abgekühlt.Usually, the approximately 800 ° C hot gas coming from the riser pipe is cooled in the receiver by circulating gas condensates to the dew point at approximately 80 ° C.
Dabei gelangen die fixen Salze nur zu einem Teil in das Kreislaufkondensat, der Rest gelangt mit dem Gas in die Kühlerkondensate, so daß eine Aufteilung der Gaskondensate in eine salzhaltige und ein salzfreie Fraktion nicht möglich ist.Only some of the fixed salts get into the circulating condensate, the rest goes with the gas into the cooler condensates, so that a division of the gas condensates into a saline and a salt-free fraction is not possible.
Es ist zwar ein Verfahren zur Gewinnung eines an fixen Salzen freien Kondensats bekannt, bei dem das Rohgas zwischen Vorlage und Vorkühlern gewaschen wird, um die fixen Salze aus dem Gas abzuscheiden (US-PS-1 747 616). Eine Untersuchung dieser aus dem Jahre 1922 stammenden Arbeitsweise zeigte jedoch, daß diese Arbeitsweise keinen Erfolg hat, da die fixen Salze in Form von Aerosolen vorliegen, die in einem Waschprozeß nicht abgeschieden werden können.A method for obtaining a condensate free of fixed salts is known, in which the raw gas is washed between the receiver and precoolers in order to separate the fixed salts from the gas (US Pat. No. 1,747,616). However, an examination of this method, which dates from 1922, showed that this method was unsuccessful, since the fixed salts are in the form of aerosols which cannot be separated off in a washing process.
Der Erfindung liegt deshalb die Aufgabe zugrunde, die bei der Vorlagenbedüsung nicht abgeschiedenen fixen Salze vor der Gaskondensation in den Vorkühlern aus dem Gas zu entfernen, um so den größsten Teil des bei der Verkokung anfallenden Wassers salzfrei zu gewinnen und nach Weiteren Reinigungsschritten als Brauchwasser in den Kokereibetrieb zurückführen zu können.The invention is therefore based on the object to remove the non-deposited fixed salts in the pre-coolers from the gas in the pre-coolers in order to obtain most of the water obtained in the coking without salt and after further cleaning steps as process water in the To be able to reduce coke oven operations.
Diese Aufgabe wird durch ein Verfahren mit den Merkmalen gemäß dem Anspruch 1 gelöst. Weitere Ausgestaltungen und Verbesserungen erfolgen gemäß den Merkmalen der Unteransprüche.This object is achieved by a method with the features according to claim 1. Further refinements and improvements are made in accordance with the features of the subclaims.
Indem man die Kokereirohgase zwischen Vorlage und Vorkühlern ein Elektrofilter passieren läßt, werden die fixen Salze zu über 96 % aus dem wasserdampfgesättigten Rohgas abgeschieden.By allowing the raw coke oven gases to pass through an electrostatic precipitator between the receiver and the pre-cooler, over 96% of the fixed salts are separated from the raw gas saturated with water vapor.
Anhand der Zeichnung sei die Erfindung näher beschrieben. Die Figur stellt schematisch die Gasreinigung nach den Koksöfen dar.The invention will be described in more detail with reference to the drawing. The figure shows schematically the gas cleaning after the coke ovens.
Der Kreislauf des in der Vorlage 1 kondensierten Teers und Wassers erfolgt über Leitung 2 zum Teerscheider 3 und weiter über Leitung 4 zurück zur Vorlage 1. Der Gasstrom tritt dagegen aus der Vorlage 1 durch das Elektrofilter 5 in die Vorkühler 6 ein. Der Ablauf des Elektrofilters 5 wird über Leitung 7 in den Vorlagenkreislauf, beispielsweise in den Teerscheider 3, geführt. In den Vorkühlern 6 wird ein Kondensat gewonnen, das praktisch frei von fixen Salzen ist und getrennt weiterbehandelt wird.The circulation of the tar and water condensed in the template 1 takes place via
Ein Teil der Vorkühlerkondensate wird über Leitung 8 in den Vorlagenkreislauf, z. B. wie hier dargestellt, in die Vorlage 1, zurückgeführt, da neben dem Kohlewasser auch der Wasserdampf auskondensiert wird, der vorher in der Vorlage 1 zum Kühlen des heißen Rohgases verdampft worden ist.Part of the precooler condensate is via
Bei dieser Arbeitsweise kommt es jedoch zu einer Anreicherung der fixen Salze im Vorlagenkreislauf, die zu Schwierigkeiten bei der Teerabscheidung führen kann. Deshalb wird kontinuierlich durch Leitung 9 eine dem Anreicherungsgrad entsprechende Flüssigkeitsmenge aus dem Vorlagenkreislauf abgezogen. Diese Menge wird durch zusätzlich durch Leitung 8 zurückgeführtes Kühlerkondensat ausgeglichen.With this procedure, however, the fixed salts accumulate in the supply circuit, which can lead to difficulties in tar separation. Therefore, a quantity of liquid corresponding to the degree of enrichment is continuously withdrawn from the supply circuit through
Die durch Leitung 9 aus dem Vorlagenkreislauf abgezogene Wassermenge kann beispielsweise in einem Abtreiber von ihren flüchtigen Achadstoffen und bei Zugabe von Kalk, Natronlauge oder Natriumkarbonat auch von fixem Ammoniak befreit und nach einer Entphenolung abgeleitet werden. Da es sich um eine vergleichsweise geringe Wassermenge handelt, kann diese Lösung auch eingedampft werden, um die fixen Salze als Feststoff zu gewinnen.The amount of water drawn off from the supply circuit through
Das in den Vorkühlern gewonnene Kondensat wird, gegebenenfalls nach einer Verwendung in der Gasreinigung, von seinen flüchtigen Schadstoffen befreit und kann nach einer weitergehenden biologischen Reinigung, einer umgekehrten Osmose, nach einer Entphenolung oder einer Reinigung mit Aktivkohle als Brauchwasser, beispielsweise zum Kokslöschen oder als Kühlwasser, in der Kokerei verwendet werden.The condensate obtained in the pre-coolers is freed of its volatile pollutants, if necessary after use in gas cleaning, and can be used after further biological cleaning, reverse osmosis, after de-phenolization or cleaning with activated carbon as process water, e.g. for coke quenching or as cooling water , used in the coking plant.
Da es beim erfindungsgemäßen Verfahren zu Naphthalinablage rungen in den Vorkühlern 6 kommen kann, wird nach einer Ausführungsform der Erfindung eine fraktionierende Kondensation der Gase in mehreren Vorkühlern 6 durchgeführt. Dabei wird das Gas im ersten Kühler nur soweit abgekühlt, daß die auskondensierte (bei etwa 70° C) Wassermenge als Brauchwasser genutzt werden kann. Bei der Kühlung aufSince naphthalene deposits can occur in the
Umgebungstemperatur wird ein zweiter Kühler mit Teer oder einem Teer-Ammoniakwassergemisch berieselt, um Naphthalinablagerungen zu vermeiden. Der Ablauf des zweiten Kühlers wird dann durch Leitung 8 in den Vorlagenkreislauf, z. B. in die Vorlage 1, zurückgeführt.Ambient temperature becomes a second cooler sprinkled with tar or a tar-ammonia water mixture to avoid naphthalene deposits. The flow of the second cooler is then through
Die folgende Tabelle zeigt die Wirkung des erfindungsgemäßen Elektrofilters auf die Gaszusammensetzung zwischen Vorlage 1 und Vorkühlern 6.The following table shows the effect of the electrostatic filter according to the invention on the gas composition between receiver 1 and
Rohgaszusammensetzung ohne und nach einem Elektrofilter mit den folgenden technischen Daten: Höhe: 6,5 m; Durchmesser: 1,08 m; Unterteilung in 55 Waben; Gasdurchsatz: 1.000 m3 i.N./h; Gleichspannung: 57 KV's
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843423798 DE3423798A1 (en) | 1984-06-28 | 1984-06-28 | METHOD FOR SEPARATING THE WATER RESULTING FROM THE COCING PROCESS INTO A SMALL SALT-HIGH AND A LARGE SALT-LOW FRACTION |
| DE3423798 | 1984-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0221061A1 EP0221061A1 (en) | 1987-05-13 |
| EP0221061B1 true EP0221061B1 (en) | 1988-10-12 |
Family
ID=6239344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85902990A Expired EP0221061B1 (en) | 1984-06-28 | 1985-06-19 | Method for the separation of water obtained form a coking process into a small high salt content fraction and a large low salt content fraction |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4710302A (en) |
| EP (1) | EP0221061B1 (en) |
| JP (1) | JPS61502540A (en) |
| KR (1) | KR900005099B1 (en) |
| DE (2) | DE3423798A1 (en) |
| WO (1) | WO1986000332A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001060953A1 (en) * | 2000-02-18 | 2001-08-23 | Deutsche Montan Technologie Gmbh | Method for treating crude coke oven gas |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3615132A1 (en) * | 1986-05-03 | 1987-11-05 | Bergwerksverband Gmbh | METHOD FOR DEBOLISHING A CONCENTRATE OF A REVERSE OSMOSIS SYSTEM IN A COOKERY |
| EP0274037A1 (en) * | 1986-12-10 | 1988-07-13 | BBC Brown Boveri AG | Process and device for the separation of particles |
| EP0272465B1 (en) * | 1986-12-10 | 1993-02-24 | BBC Brown Boveri AG | Process and device for the separation and/or reaction of particles |
| DE3926575A1 (en) * | 1989-08-11 | 1991-02-14 | Metallgesellschaft Ag | PROCESS FOR CLEANING RAW FUEL GAS FROM THE GASIFICATION OF SOLID FUELS |
| DE4012143A1 (en) * | 1990-04-14 | 1991-11-07 | Still Otto Gmbh | Washing ammonia out of coke oven gas with water - comprises two=stage process without need for distn. of regeneration plant and without environmental and cost drawbacks |
| DE4012146A1 (en) * | 1990-04-14 | 1991-10-17 | Still Otto Gmbh | Precooling of coke-oven gas - with electrostatic filtration and naphthalene scrubbing |
| DE4012145A1 (en) * | 1990-04-14 | 1991-10-17 | Still Otto Gmbh | Multistage precooling of coke-oven gas - with naphthalene removal by scrubbing with tar |
| DE4012141A1 (en) * | 1990-04-14 | 1991-10-17 | Still Otto Gmbh | METHOD FOR PRE-COOKING RAW COOKING GAS AND FOR DESORPING WASHING WATER AND CONDENSATE OF COOKING |
| DE4012144C1 (en) * | 1990-04-14 | 1991-07-25 | Still Otto Gmbh, 4630 Bochum, De | Overflow water treatment from coking plants - uses reverse osmosis plant and is carried out without removal of ammonia |
| DE4116576C2 (en) * | 1991-05-21 | 1993-12-23 | Still Otto Gmbh | Process for extracting excess coke oven water as a reverse osmosis permeate |
| DE4235893C2 (en) * | 1992-10-23 | 2000-07-13 | Siemens Ag | Process and device for cleaning dusty, hot, flammable gas |
| DE10011531A1 (en) * | 2000-03-13 | 2001-09-27 | Montan Tech Gmbh | Raw coke gas sampler feeds analysis instrument via heated electro-filter protected from condensation via a gas cooler |
| DE10139172C1 (en) * | 2001-08-15 | 2003-02-06 | Montan Tech Gmbh | Rinsing pre-coolers of coking plant involves using liquid phase produced from collecting main which has not been impinged with pre-cooler condensate |
| CN103013583B (en) * | 2012-12-05 | 2014-05-21 | 浙江大学 | Process for dust removing, cooling and tar oil recovering of pyrolysis coal gas |
| CN105018157B (en) * | 2015-08-03 | 2017-09-19 | 中冶焦耐工程技术有限公司 | A kind of combined type primary cooler |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1747616A (en) * | 1922-08-02 | 1930-02-18 | Koppers Co Inc | Ammonia-recovery process |
| DE2542055C3 (en) * | 1975-09-20 | 1985-08-22 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the treatment of a raw gas from the pressurized gasification of coal |
| DE2853989C2 (en) * | 1978-12-14 | 1980-07-31 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the treatment of water-containing condensate from the cooling of the raw gas of the pressurized gasification |
| FR2496685A1 (en) * | 1980-10-13 | 1982-06-25 | Pillard Chauffage | PROCESS AND INSTALLATION FOR PRODUCING COLD AND CLEAN COMBUSTIBLE GAS USING A SOLID FUEL GASIFIER |
| DE3043329C2 (en) * | 1980-11-17 | 1986-12-18 | Carl Still Gmbh & Co Kg, 4350 Recklinghausen | Process and system for cooling and separating chlorides and fluorides from gas mixtures |
| US4382866A (en) * | 1980-12-09 | 1983-05-10 | Johnson Dennis E J | Electro-chemical system for liquid filtration |
| US4370236A (en) * | 1980-12-16 | 1983-01-25 | Phillips Petroleum Company | Purification of hydrocarbon streams |
| US4416754A (en) * | 1981-08-24 | 1983-11-22 | Exxon Research And Engineering Co. | Compositions and process for dedusting solids-containing hydrocarbon oils |
-
1984
- 1984-06-28 DE DE19843423798 patent/DE3423798A1/en active Granted
-
1985
- 1985-06-19 DE DE8585902990T patent/DE3565554D1/en not_active Expired
- 1985-06-19 JP JP60502777A patent/JPS61502540A/en active Granted
- 1985-06-19 WO PCT/EP1985/000298 patent/WO1986000332A1/en active IP Right Grant
- 1985-06-19 US US06/833,388 patent/US4710302A/en not_active Expired - Fee Related
- 1985-06-19 EP EP85902990A patent/EP0221061B1/en not_active Expired
- 1985-06-28 KR KR1019860700049A patent/KR900005099B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001060953A1 (en) * | 2000-02-18 | 2001-08-23 | Deutsche Montan Technologie Gmbh | Method for treating crude coke oven gas |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1986000332A1 (en) | 1986-01-16 |
| DE3565554D1 (en) | 1988-11-17 |
| KR860700134A (en) | 1986-03-31 |
| DE3423798C2 (en) | 1988-12-01 |
| EP0221061A1 (en) | 1987-05-13 |
| JPH041793B2 (en) | 1992-01-14 |
| JPS61502540A (en) | 1986-11-06 |
| US4710302A (en) | 1987-12-01 |
| DE3423798A1 (en) | 1986-01-09 |
| KR900005099B1 (en) | 1990-07-19 |
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