DE3138578A1 - Method of thermal processing of hydrogenation water and hydrogenation residue in coal hydrogenation - Google Patents
Method of thermal processing of hydrogenation water and hydrogenation residue in coal hydrogenationInfo
- Publication number
- DE3138578A1 DE3138578A1 DE19813138578 DE3138578A DE3138578A1 DE 3138578 A1 DE3138578 A1 DE 3138578A1 DE 19813138578 DE19813138578 DE 19813138578 DE 3138578 A DE3138578 A DE 3138578A DE 3138578 A1 DE3138578 A1 DE 3138578A1
- Authority
- DE
- Germany
- Prior art keywords
- hydrogenation
- residue
- water
- coal
- thermal processing
- 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- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
Description
Verfahren zur thermischen Aufarbeitung von iiydrierwasserProcess for the thermal processing of hydrogenation water
und Hydrierrückstand bei der Kohlehydrierung Bei der Hydrierung von Kohle fällt bei der Abkühlung des Hydriergutes der ersten Stufe (Sumpfphase) eine beträchtliche Menge Abwasser an, das schädliche Stoffe, z.B. Phenole, Ammonium und Schwefelwasserstoff in beträchtlichen Mengen enthält. Diese, zum Teil toxischen Stoffe, sind in so großen Konzentrationen im Abwasser enthalten, daß dessen Abgabe in einen Vorfluter nicht möglich ist. Da diese Stoffe aber den auftretenden Konzentrationen auch auf die rakterienstämme einer Großkläranlage toxisch wirken, war bisher eine Vorreinigung erforderlich, die die Abwässer soweit von den toxischen Inhalt befreien, daß die weitere Aufarbeitung in einer Kläranlage erfolgen kann.and hydrogenation residue in carbohydrate hydrogenation in the hydrogenation of Coal falls during the cooling of the material to be hydrogenated in the first stage (sump phase) considerable amount of wastewater containing harmful substances such as phenols, ammonium and Contains significant amounts of hydrogen sulfide. These, some of them toxic Substances are contained in wastewater in such large concentrations that it is released in a receiving water is not possible. Since these substances but the occurring concentrations So far, it has also been toxic to the bacterial strains of a large sewage treatment plant Pre-cleaning required to remove the toxic content of the wastewater, that further processing can take place in a sewage treatment plant.
dekannte Verfahren wenden für die Vorreinigung eine -traktion an, bei der insbesondere die Phenole ins Extraktionsmittel gehen und der Rest an NH4-Verbindungen und li2S-Verbindungen, z.B. durch Strippen entfernt wird.well-known processes use traction for pre-cleaning, in which the phenols in particular go into the extraction agent and the rest of the NH4 compounds and li2S connections are removed, e.g. by stripping.
Diese bekannten Verfahren verbessern zwar die Hydrierabwässer sowietgehend, daß eine Abklärung in Kläranlagen überhaupt ermöglicnt ist, jedoch kann dabei nicht von einer befriedigenden Läsung des Problems gesprochen werden, da die zu klärenden ?qen;en so erheblich sind, aaa sie nicht in bestehenden kommunalen oder industriellen Kläranlagen mitverarbeitet werden können, sondern die Errichtung eigener größerer Kläranlagen voraussetzen.These known processes improve the hydrogenation wastewater as well as that a clarification in sewage treatment plants is even possible, but cannot a satisfactory solution of the problem can be spoken of, since the one to be clarified ? qen; en are so significant that aaa they do not exist in existing municipal or industrial Sewage treatment plants can also be processed, but the construction of their own larger ones Assume sewage treatment plants.
Es wurde nun gefunden, aa man diese Schwierigkeiten in einfacher Weise vermeidet, wenn man Hydrierabwässer und dydrierrückstand der Kohlehydrierung auf thermischen ee aufarbeitet, in dem man das gesamte, diphenole, Amoniumverbindungen und Schwefelwasserstoff enthaltende Hydrierabwasser aus Sumpf- und Gasphase zusammen mit dem gesamten nydrierrückstand der Sumpfphase mit Luft in eine Brennkammer einführt und bei Temperaturen über 8000C verbrennt.It has now been found that these difficulties can be overcome in a simple manner if you avoid hydrogenation wastewater and dehydration residue from carbohydrate hydrogenation thermal ee works up, in which one all, diphenole, ammonium compounds and containing hydrogen sulfide Hydrogenation wastewater from sump and Gas phase together with the entire hydrogenation residue of the bottom phase with air in a Introduces combustion chamber and burns at temperatures above 8000C.
Das Hydrierwasser fällt bei der Kohlehydrierung sowohl in der Sumpfphase und in der Gasphase nach der Abkühlung uiid Entspannung der Produkte aus den jeweiligen Jfydrierstufen an 4an erhält in der Sumpfphase ca. 0,1 to Abwasser pro to zu hydrierender Kohle und in der Gasphase ca. 0,02 to/to.In the case of carbohydrate hydrogenation, the water of hydrogenation falls both in the sump phase and in the gas phase after cooling uiid relaxation of the products from the respective Hydrogenation stages at 4an receive approx. 0.1 tons of wastewater per ton to be hydrogenated in the sump phase Coal and in the gas phase approx. 0.02 to / to.
Der fiydrierrückstand bestent aus Restkohle, Asche und Schwerstölen2 z.3. Vakuumgasöl, und fällt in so großen Mengen an, daß schon ein kleiner Anteil ausreichen würde, um die erforderliche Wärmemenge aufzubringen. Dieser dydrierrückstand, der vorwiegend aus Restkohle und Asche besteht, zeichnet sich durch einen hohen Heizwert aus. Der besondere Vorteil des erfindungsgemäßen Verfahrens besteht darin, daß durch die thermische Aufarbeitung des behandlungsbedürftigten Abwassers die umweltschädlichen Inhaltsstoffe in unschädliche Komponenten umgewandelt werden, und gleichzeitig die erforderliche Energie für diesen Prozeß durch den bei der Hydrierung anfallenden Rückstand aufgebracht wird, der ebenfalls beseitigt werden müßte.The hydrogenation residue consists of residual coal, ash and heavy oils2 z.3. Vacuum gas oil, and is produced in such large quantities that even a small proportion would be sufficient to apply the required amount of heat. This dehydration residue, which consists mainly of residual coal and ash, is characterized by a high Calorific value. The particular advantage of the method according to the invention is that that by the thermal processing of the wastewater in need of treatment the environmentally harmful ingredients are converted into harmless components, and at the same time the energy required for this process by the hydrogenation accumulating residue is applied, which would also have to be removed.
3ei der Durchführung des Verfahrens wird die Verbrennung des Hydrierrückstandes im allgemeinen in einer ausgemauerten Brennkammer vorgenommen. Die Brennkammer kann liegend oder stehend angeordnet sein. Das Hydrierabwasser und der Hydrierrückstand werden durch Brenner bei gleichzeitiger Zugabe von Luft in die Brennkammer zerstäubt. Das Verhältnis von Hydrierabwasser zu Hydrierrückstand zu Luft wirci so eingestellt, dad in der Brennkanimer eine mittlere brennkrammertemperatur von über 800°C bei Umgebungsruck eingehalten werden kann. lan erreicht eine vollständige Verbrennung des Rückstandes zusammen mit der Verbrennung der im dydrierwasser entnaltenden toxischen Stoffe, wenn unter diesen Bedingungen eine Mindestaufenthaltszeit der Rauchoase von etwa 0,9 sek eingehalten wird. Die Rauchgase können zur Dampferzeugung und Luftvorwärmung verwendet werden. Aus dem bei der Verbrennung des Hydrierabwassers entstehenden Rauchgasen kann man Dampf in einem Abhitzesystem gewinnen.When the process is carried out, the hydrogenation residue is incinerated generally carried out in a brick-lined combustion chamber. The combustion chamber can be arranged lying or standing. The hydrogenation waste water and the hydrogenation residue are atomized by burners with simultaneous addition of air into the combustion chamber. The ratio of hydrogenation waste water to hydrogenation residue to air is adjusted so that dad a mean combustion chamber temperature of over 800 ° C in the combustion canister Ambient pressure can be maintained. lan achieves complete combustion of the residue together with the incineration of the im dehydration water containing toxic substances, if under these conditions a minimum residence time the smoke oasis is maintained for about 0.9 seconds. The flue gases can be used to generate steam and air preheating can be used. From the incineration of the hydrogenation waste water The resulting flue gases can be steam extracted in a waste heat system.
Der iiydrierrückstand kann zur Erzeugung von Wasserstoff verwendet werden oder thermisch aufgearbeitet werden. Anstelle des heizwertspendenden Gehaltes der Rückstände kann man auch andere Zusatzbrennstoffe verwenden, um eine vollstandige Verbrennung der organischen Bestandteile zu erzielen.The hydrogenation residue can be used to generate hydrogen or be thermally processed. Instead of the calorific value donating salary the residues can also be used other additional fuels to complete a To achieve combustion of the organic components.
Durch Einhaltung der obengenannten Verfahrenbedingung bei der Verbrennung in einer Brennkammer wird ein Verbrennungswirkungsgrad erreicht, der die Einhaltung der gesetzlich vorgesebenen Grenzwerte für luftfremde Stoffe sicherstellt. Je nach Feststoffgehalt und SO2-, HCl- und Cl2Gehalt kann auch eine Entstaubungsanlage bzw. Wäsche nachgeschaltet werden.By observing the above procedural conditions during incineration In a combustion chamber, a combustion efficiency is achieved that complies with the legally prescribed limit values for air pollutants. Depending on Solids content and SO2, HCl and Cl2 content can also be achieved by a dedusting system or Laundry can be connected downstream.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813138578 DE3138578A1 (en) | 1981-09-28 | 1981-09-28 | Method of thermal processing of hydrogenation water and hydrogenation residue in coal hydrogenation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813138578 DE3138578A1 (en) | 1981-09-28 | 1981-09-28 | Method of thermal processing of hydrogenation water and hydrogenation residue in coal hydrogenation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3138578A1 true DE3138578A1 (en) | 1983-04-07 |
Family
ID=6142833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813138578 Withdrawn DE3138578A1 (en) | 1981-09-28 | 1981-09-28 | Method of thermal processing of hydrogenation water and hydrogenation residue in coal hydrogenation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3138578A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE817184C (en) * | 1950-01-25 | 1951-10-15 | Ofag Ofenbau A G | Process for the removal of phenol-containing waste water from gas generating plants |
US3971637A (en) * | 1974-12-23 | 1976-07-27 | Gulf Oil Corporation | Coal gasification process utilizing waste water from an external process |
DE2920691A1 (en) * | 1979-05-22 | 1980-11-27 | Westfael Elekt Werke | Coal gasification contaminants treatment - by recycling all for thermal cracking except sulphur, fluorine and chlorine |
-
1981
- 1981-09-28 DE DE19813138578 patent/DE3138578A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE817184C (en) * | 1950-01-25 | 1951-10-15 | Ofag Ofenbau A G | Process for the removal of phenol-containing waste water from gas generating plants |
US3971637A (en) * | 1974-12-23 | 1976-07-27 | Gulf Oil Corporation | Coal gasification process utilizing waste water from an external process |
DE2920691A1 (en) * | 1979-05-22 | 1980-11-27 | Westfael Elekt Werke | Coal gasification contaminants treatment - by recycling all for thermal cracking except sulphur, fluorine and chlorine |
Non-Patent Citations (2)
Title |
---|
International Chemical Engineering 13, 2, 1973, S. 256-262 * |
Wärme 78, 1/2, 1972, S. 50-56 * |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: SAARBERGWERKE AG, 6600 SAARBRUECKEN, DE |
|
8120 | Willingness to grant licences paragraph 23 | ||
8130 | Withdrawal |