EP0233352B1 - Hot separator - Google Patents

Hot separator Download PDF

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Publication number
EP0233352B1
EP0233352B1 EP86117454A EP86117454A EP0233352B1 EP 0233352 B1 EP0233352 B1 EP 0233352B1 EP 86117454 A EP86117454 A EP 86117454A EP 86117454 A EP86117454 A EP 86117454A EP 0233352 B1 EP0233352 B1 EP 0233352B1
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EP
European Patent Office
Prior art keywords
hot separator
cooling
products
insert
square
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EP86117454A
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German (de)
French (fr)
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EP0233352A3 (en
EP0233352A2 (en
Inventor
Friedhelm Bohlander
Karl-Heinz Vössing
Wolfdieter Klein
Frank Dr. Mirtsch
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RAG AG
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Ruhrkohle AG
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    • 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
    • C10G1/06—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by destructive hydrogenation
    • C10G1/065—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by destructive hydrogenation in the presence of a solvent
    • 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
    • C10G49/00—Treatment of hydrocarbon oils, in the presence of hydrogen or hydrogen-generating compounds, not provided for in a single one of groups C10G45/02, C10G45/32, C10G45/44, C10G45/58 or C10G47/00
    • C10G49/22—Separation of effluents

Definitions

  • the invention relates to a hot separator for the high-pressure hydrogenation of coal, tars, mineral oils, their distillation and extraction products and similar substances, the hot separator for separating the reacted products from a symphysis reactor into a bottom product, namely predominantly high-boiling oils, ashes, and possibly a catalyst , undissolved coal, and is used in volatile reaction product.
  • the hot separator consists of a pressure-resistant container which contains an upper cylindrical and a lower conical wall insert and the contents of which are cooled by a cooling system by means of a cooling gas, in particular with section-by-section cooling.
  • Hot separators such as those used in systems for liquefying coal hydrogenation, consist of pressure-resistant containers which contain inserts cooled by coils to facilitate the separation and to prevent the separated, non-volatile substances from coking on the hot separator wall.
  • the lower cooled insert is usually designed as a funnel through which the non-volatile components are removed. In practical operation, it has been shown that despite the effective cooling of the lower insert by means of coils, coking frequently causes faults which cause the separator to run irregularly and even interrupt operations (cf. DE-C-971 419).
  • the reaction products from the bottom phase reactors are passed into a separator for the purpose of separation into a solid / liquid phase consisting of solid and predominantly high-boiling oils and a gas / vapor phase containing the volatile reaction products and hydrogenation gas .
  • a separator for the purpose of separation into a solid / liquid phase consisting of solid and predominantly high-boiling oils and a gas / vapor phase containing the volatile reaction products and hydrogenation gas .
  • the reaction products have to be cooled somewhat, for example by 10-40 ° C. lower than the temperature in the last bottom phase reactors.
  • reaction products in the separator should be kept at the highest possible temperature level in order to carry out the thermal separation of the products in an energy-saving manner and, if appropriate, to utilize the waste heat of the reaction products to heat the bottom phase hydrogenation feedstocks.
  • the hot separator known from DE-C-971419 has a cooling space in the form of a jacket space.
  • a shell room shows considerable procedural and device problems.
  • the object of the invention is to improve the cooling space of hot separators. According to the invention this is achieved with the features of claim 1.
  • a tube jacket is created which contributes to a considerable extent to the pressure resistance of the reactor wall.
  • the square cooling tubes unlike round tubes, do not support the reactor wall in a linear manner, but over the entire surface. The full-surface support also has the advantage of a much better heat transfer.
  • a hot separator according to the invention has a conical insert 4 and a cylindrical insert 3.
  • the conical insert 4 and the cylindrical insert 3 consist of spirally wound square hollow sections 12.
  • the turns are preferably connected to one another on the inside of the inserts produced in this way by weld seams which are smoothed on the inside.
  • the turns are preferably connected to one another by an interrupted outer supporting seam.
  • This structure leads to, preferably separate, integrated cooling circuits.
  • All turns of the conical insert 4, which is made of square profile 12 and form the conical insert 4, are welded to one another on the inside without interruption, the inner weld being the sealing seam and the outer seam being the supporting seam.
  • the windings of the cylindrical cooling coil from square profile 12 forming the cylindrical insert 3 are welded to one another on the inside in the same way as in the conical insert 4 without interruption, the inner weld seam being the sealing seam and the outer seam being the supporting seam.
  • the uppermost turns of the cylindrical cooling coil from the square profile 12 are appropriately wound at a distance and are not welded together. They serve as expansion compensators during operation when heated.
  • the composite system consists of wound and welded square profiles 12, preferably with a cylindrical bore, which simultaneously take over the functions of the cooling coil and the container wall.
  • the process-relevant temperatures of the bottom product located in the conical insert 4 and the gas / vapor phase located in the cylindrical insert 3 can be adjusted independently of one another to the required values, and only hydrogen gas or hydrogenation gas is required to influence the Coking equilibrium in the hot separator, ie counteracting the required hydrogen depletion in the hot separator, but not for the purpose of direct cooling of the hot separator content, to be introduced directly into the hot separator.
  • the cooling circuits for the conical insert 6 and the cylindrical insert 5 are constructed from tubes 13 fastened to the inserts and welded to the respective insert.
  • connection of the inserts 3 and 4 or 5 and 6 can by a conical shot 11 z. B. be produced by means of a sheet metal element, so that a common apparatus element is present.
  • the proposed hot separator and in particular the inserts through which the cooling medium flows are suitable for withstanding an external pressure load of up to 700 bar and a temperature load of up to 500 ° C.
  • Fig. 1 the construction of the proposed new hot separator 1 with the pressure-resistant container 2 and nozzle 7 for entry of the reacted mash, top product outlet 8 and bottom product outlet 9 is shown schematically in a preferred embodiment.
  • the conical insert 4 and the cylindrical insert 3 of the inner container each form an integrated, fixed composite system consisting of the cooling circuit and the container wall. Two separate coolant flows are applied to the conical and cylindrical insert.
  • the coolant flows are for the conical insert 4 via sockets for cooling gas inlet (10/1) and cooling gas outlet (10/2), for the cylindrical insert 3 via sockets for cooling gas inlet (10/3) and cooling gas outlet ( 10/4).
  • the conical insert 4 has, for example, 10 degrees bevel and is wound from a square profile 12 with a cylindrical bore.
  • the cylindrical insert 3 is also wound from the square profile 12 with a cylindrical bore, the connection of the two inserts being made by the conical section II, which can be reinforced by ribs if necessary.
  • the conical insert 4 is provided on the inside with, for example, four thermocouples 15.1, 15.2, ..., 15.N and the cylindrical insert 3 on the inside with, for example, two thermocouples 14.1, ..., 14.N equipped.
  • the thermocouple connections can, for example, be led out of the hot separator 1 via gland seals.
  • the hot separator 1 is designed, for example, for a permissible operating temperature of 500 ° C. and a permissible operating pressure of up to 700 bar, with pressure equalization between the inside and outside surface of the internals.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Industrial Gases (AREA)

Description

Die Erfindung betrifft einen Heißabscheider für die Hochdruckhydrierung von Kohlen, Teeren, Mineralölen, deren Destillations- und Extraktionsprodukten und ähnlichen Stoffen, wobei der Heißabscheider für die Auftrennung der reagierten Produkte aus einem Sympfphasereaktor in ein Sumpfprodukt, nämlich vorwiegend hochsiedende Öle, Asche, ggf. Katalysator, ungelöste Kohle, und in flüchtiger Reaktionsprodukt dient.The invention relates to a hot separator for the high-pressure hydrogenation of coal, tars, mineral oils, their distillation and extraction products and similar substances, the hot separator for separating the reacted products from a symphysis reactor into a bottom product, namely predominantly high-boiling oils, ashes, and possibly a catalyst , undissolved coal, and is used in volatile reaction product.

Der Heißabscheider besteht aus einem druckfesten Behälter, welcher einen oben zylindrischen und einen unteren konischen Wandeinsatz enthält und dessen Inhalt durch ein Kühlsystem mittels eines Kühlgases gekühlt wird, insbesondere mit abschnittsweiser Kühlung.The hot separator consists of a pressure-resistant container which contains an upper cylindrical and a lower conical wall insert and the contents of which are cooled by a cooling system by means of a cooling gas, in particular with section-by-section cooling.

Es ist bekannt, zur Vermeidung von Absetzungen und Verkokungen in den Heißabscheidern der Hochdruckhydrierung die Innenwände zwecks Abkühlung auf indirektem Weg durch Kreislaufgas mittels Schlangenrohren zu kühlen, um dadurch Kondensationswirkung und Spülung an der Innenwand des Abscheiders zu erreichen (vgl. DE-C-885 398).It is known to avoid settling and coking in the hot separators of the high-pressure hydrogenation to cool the inner walls for cooling indirectly by means of recycle gas by means of snake pipes, in order to achieve condensation and flushing on the inner wall of the separator (cf. DE-C-885 398 ).

Heißabscheider wie sie beispielsweise bei Anlagen zur verflüssigenden Kohlehydrierung eingesetzt werden, bestehen aus druckfesten Behältern, welche durch Rohrschlangen gekühlte Einsätze enthalten, um die Abscheidung zu erleichtern und zu verhindern, daß an der heißen Abscheiderwand die abgeschiedenen, nicht flüchtigen Stoffe verkoken. Der untere gekühlte Einsatz ist üblicherweise als Trichter ausgebildet, durch den die nicht flüchtigen Anteile abgeführt werden. Im praktischen Betrieb hat sich gezeigt, daß trotz der wirksamen Kühlung des unteren Einsatzes durch Rohrschlangen häufig durch Verkokung Störungen auftreten, die unregelmäßigen Gang des Abscheiders und sogar Betriebsunterbrechungen herbeiführten (vgl. DE-C-971 419).Hot separators, such as those used in systems for liquefying coal hydrogenation, consist of pressure-resistant containers which contain inserts cooled by coils to facilitate the separation and to prevent the separated, non-volatile substances from coking on the hot separator wall. The lower cooled insert is usually designed as a funnel through which the non-volatile components are removed. In practical operation, it has been shown that despite the effective cooling of the lower insert by means of coils, coking frequently causes faults which cause the separator to run irregularly and even interrupt operations (cf. DE-C-971 419).

Bei der Hydrierung von Kohlen, Teeren und Schwerölen werden die Reaktionsprodukte aus den Sumpfphasereaktoren in einen Abscheider zwecks Auftrennung in eine aus Feststoff und vorwiegend hochsiedenden Ölen bestehende Feststoff-/Flüssig-Phase und eine die flüchtigen Reaktionsprodukte sowie Hydriergas enthaltende Gase-/Dämpfe-Phase geleitet. Um chemische Nachreaktionen, welche zu Polymerisationen der Produkte und zur Verstopfung des Abscheiders führen können, einzuschränken, müssen hierzu die Reaktionsprodukte etwas abgekühlt werden, beispielsweise um 10 - 40 °C niedriger als die Temperatur in dem letzten Sumpfphasereaktoren.In the hydrogenation of coal, tars and heavy oils, the reaction products from the bottom phase reactors are passed into a separator for the purpose of separation into a solid / liquid phase consisting of solid and predominantly high-boiling oils and a gas / vapor phase containing the volatile reaction products and hydrogenation gas . To chemical after reactions, which lead to polymerizations of To limit products and lead to the separator becoming blocked, the reaction products have to be cooled somewhat, for example by 10-40 ° C. lower than the temperature in the last bottom phase reactors.

Andererseits sollen die Reaktionsprodukte im Abscheider auf möglichst hohem Temperaturniveau gehalten werden, um die thermische Auftrennung der Produkte energiesparend durchzuführen und ggf. um die Abwärme der Reaktionsprodukte zur Aufheizung der Einsatzprodukte der Sumpfphasehydrierung auszunutzen.On the other hand, the reaction products in the separator should be kept at the highest possible temperature level in order to carry out the thermal separation of the products in an energy-saving manner and, if appropriate, to utilize the waste heat of the reaction products to heat the bottom phase hydrogenation feedstocks.

Der aus der DE-C-971419 bekannte Heißabscheider besitzt einen Kühlraum in Form eines Mantelraumes. Ein Mantelraum zeigt erhebliche verfahrenstechnische und vorrichtungsmäßige Probleme.The hot separator known from DE-C-971419 has a cooling space in the form of a jacket space. A shell room shows considerable procedural and device problems.

Der Erfindung liegt die Aufgabe zugrunde, den Kühlraum von Heißabscheidern zu verbessern. Nach der Erfindung wird das mit den Merkmalen des Anspruches 1 erreicht. Mit dem erfindungsgemäß vorgesehenen spiralförmig gewickelten Vierkantkühlrohr entsteht ein Rohrmantel, der in ganz erheblichem Umfang zur Druckfestigkeit der Reaktorwandung beiträgt. Dabei unterstützen die Vierkantkühlrohre die Reaktorwandung im Unterschied zu runden Rohren nicht linienförmig, sondern vollflächig. Die vollflächige Unterstützung hat zugleich den Vorteil einer um ein Vielfaches besseren Wärmeübertragung.The object of the invention is to improve the cooling space of hot separators. According to the invention this is achieved with the features of claim 1. With the spirally wound square cooling tube provided according to the invention, a tube jacket is created which contributes to a considerable extent to the pressure resistance of the reactor wall. The square cooling tubes, unlike round tubes, do not support the reactor wall in a linear manner, but over the entire surface. The full-surface support also has the advantage of a much better heat transfer.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.In the drawing, an embodiment of the invention is shown.

Nach Fig. 1 besitzt ein erfindungsgemäßer Heißabscheider einen konischen Einsatz 4 und einen zylindrischen Einsatz 3. Der konische Einsatz 4 und der zylindrische Einsatz 3 bestehen aus spiralförmig aufgewickelten Vierkanthohlprofilen 12.1, a hot separator according to the invention has a conical insert 4 and a cylindrical insert 3. The conical insert 4 and the cylindrical insert 3 consist of spirally wound square hollow sections 12.

Die Windungen sind auf der Innenseite der so hergestellten Einsätze vorzugsweise durch Schweißnähte miteinander verbunden, die auf der Innenseite geglättet sind. Auf der Außenseite der so hergestellten Behälter sind die Windungen vorzugsweise durch eine unterbrochene äußere tragende Naht miteinander verbunden.The turns are preferably connected to one another on the inside of the inserts produced in this way by weld seams which are smoothed on the inside. On the outside of the containers produced in this way, the turns are preferably connected to one another by an interrupted outer supporting seam.

Dieser Aufbau führt zu, vorzugsweise getrennten, integrierten Kühlkreisläufen.This structure leads to, preferably separate, integrated cooling circuits.

Alle Windungen der den konischen Einsatz 4 bildenden konischen Schlange aus Vierkantprofil 12 sind auf der Innenseite ohne Unterbrechung miteinander verschweißt, wobei die innere Schweißnaht als Dichtnaht, die äußere Naht als tragende Naht gilt.All turns of the conical insert 4, which is made of square profile 12 and form the conical insert 4, are welded to one another on the inside without interruption, the inner weld being the sealing seam and the outer seam being the supporting seam.

Die Windungen der den zylindrischen Einsatz 3 bildenden zylindrischen Kühlschlange aus Vierkantprofil 12 sind in gleicher Weise wie bei dem konischen Einsatz 4 auf der Innenseite ohne Unterbrechung miteinander verschweißt, wobei die innere Schweißnaht als Dichtnaht und die äußere Naht als tragende Naht gilt.The windings of the cylindrical cooling coil from square profile 12 forming the cylindrical insert 3 are welded to one another on the inside in the same way as in the conical insert 4 without interruption, the inner weld seam being the sealing seam and the outer seam being the supporting seam.

Die obersten Windungen der zylindrischen Kühlschlange aus dem Vierkantprofil 12 sind zweckmäßig in einem Abstand gewickelt und nicht miteinander verschweißt. Sie dienen im Betrieb bei Erwärmung als Dehnungsausgleicher.The uppermost turns of the cylindrical cooling coil from the square profile 12 are appropriately wound at a distance and are not welded together. They serve as expansion compensators during operation when heated.

Das Verbundsystem besteht aus aufgewickelten und verschweißten Vierkant-Profilen 12 mit vorzugsweise zylindrischer Bohrung, welche gleichzeitig die Funktionen der Kühlschlange und der Behälterwand übernehmen.The composite system consists of wound and welded square profiles 12, preferably with a cylindrical bore, which simultaneously take over the functions of the cooling coil and the container wall.

Veränderungen des Wärmedurchgangskoeffizienten lassen - bei sonst gleichen Prozeßbedingungen - direkt auf produktseitige Feststoffablagerungen im Inneren des Heißabscheiders 1 schließen.Changes in the heat transfer coefficient - given otherwise the same process conditions - directly indicate solid deposits on the product side inside the heat separator 1.

Mittels der vorgesehenen getrennten Kühlkreisläufe können die prozeßrelevanten Temperaturen des in dem konischen Einsatz 4 befindlichen Sumpfproduktes und der in dem zylindrischen Einsatz 3 befindlichen Gas-/Dämpfephase unabhängig voreinander auf die erforderlichen Werte eingestellt werden und es braucht Wasserstoffgas bzw. Hydriergas nur in der zur Beeinflussung des Verkokungsgleichgewichtes im Heißabscheider, d. h. Entgegenwirken der in dem Heißabscheider auftretenden Wasserstoffverarmung, erforderlichen Menge, nicht aber zum Zwecke der direkten Kühlung des Heißabscheiderinhaltes, direkt in den Heißabscheider eingeleitet zu werden.By means of the provided separate cooling circuits, the process-relevant temperatures of the bottom product located in the conical insert 4 and the gas / vapor phase located in the cylindrical insert 3 can be adjusted independently of one another to the required values, and only hydrogen gas or hydrogenation gas is required to influence the Coking equilibrium in the hot separator, ie counteracting the required hydrogen depletion in the hot separator, but not for the purpose of direct cooling of the hot separator content, to be introduced directly into the hot separator.

In einer anderen Ausführung des vorgeschlagenen Heißabscheiders kann vorgesehen werden, daß die Kühlkreisläufe für den konischen Einsatz 6 und den zylindrischen Einsatz 5 aus auf den Einsätzen befestigten Rohren 13, die an dem jeweiligen Einsatz angeschweißt sind, aufgebaut sind.In another embodiment of the proposed hot separator, it can be provided that the cooling circuits for the conical insert 6 and the cylindrical insert 5 are constructed from tubes 13 fastened to the inserts and welded to the respective insert.

Die Verbindung der Einsätze 3 und 4 bzw. 5 und 6 kann durch einen konischen Schuß 11 z. B. mittels eines Blechelementes hergestellt werden, so daß ein gemeinsames Apparateelement vorliegt.The connection of the inserts 3 and 4 or 5 and 6 can by a conical shot 11 z. B. be produced by means of a sheet metal element, so that a common apparatus element is present.

Der vorgeschlagene Heißabscheider und insbesondere die vom Kühlmedium durchströmten Einsätze sind geeignet, einer äußeren Druckbelastung von bis zu 700 bar und einer Temperaturbelastung von bis zu 500 °C standzuhalten.The proposed hot separator and in particular the inserts through which the cooling medium flows are suitable for withstanding an external pressure load of up to 700 bar and a temperature load of up to 500 ° C.

In Fig. 1 ist der konstruktive Aufbau des vorgeschlagenen neuen Heißabscheiders 1 mit dem druckfesten Behälter 2 und Stutzen 7 für Eintritt der reagierten Maische, Kopfproduktaustritt 8 sowie Sumpfproduktaustritt 9 in einer bevorzugten Ausführung schematisch dargestellt. Der konische Einsatz 4 sowie der zylindrische Einsatz 3 des Innenbehälters bilden jeweils ein integriertes festes Verbundsystem, bestehend aus Kühlkreislauf und Behälterwand. Der konische und zylindrische Einsatz werden mit zwei separaten Kühlmittelströmen beaufschlagt.In Fig. 1, the construction of the proposed new hot separator 1 with the pressure-resistant container 2 and nozzle 7 for entry of the reacted mash, top product outlet 8 and bottom product outlet 9 is shown schematically in a preferred embodiment. The conical insert 4 and the cylindrical insert 3 of the inner container each form an integrated, fixed composite system consisting of the cooling circuit and the container wall. Two separate coolant flows are applied to the conical and cylindrical insert.

Die Kühlmittelströme werden für den konischen Einsatz 4 über Stutzen für Kühlgas-Eintritt (10/1) und Kühlgas-Austritt (10/2), für den zylindrischen Einsatz 3 über Stutzen für Kühlgas-Eintritt (10/3) und Kühlgas-Austritt (10/4) geführt.The coolant flows are for the conical insert 4 via sockets for cooling gas inlet (10/1) and cooling gas outlet (10/2), for the cylindrical insert 3 via sockets for cooling gas inlet (10/3) and cooling gas outlet ( 10/4).

Der konische Einsatz 4 weist beispielsweise 10 Grad Schräge auf und ist aus einem Vierkantprofil 12 mit einer zylindrischen Bohrung gewickelt. Der zylindrische Einsatz 3 ist ebenfalls aus dem Vierkantprofil 12 mit einer zylindrischen Bohrung gewickelt, wobei die Verbindung der beiden Einsätze durch den konischen Schuß II hergestellt ist, welcher ggf. durch Rippen verstärkt werden kann. Der konische Einsatz 4 wird auf der Innenseite mit beispielsweise vier Thermoelementen 15.1, 15.2, ..., 15.N und der zylindrische Einsatz 3 auf der Innenseite mit beispielweise zwei Thermoelementen 14.1, ..., 14.N bestückt. Die Thermoelementanschlüsse können beispielweise über Stopfbuchsdichtungen aus dem Heißabscheider 1 herausgeführt werden.The conical insert 4 has, for example, 10 degrees bevel and is wound from a square profile 12 with a cylindrical bore. The cylindrical insert 3 is also wound from the square profile 12 with a cylindrical bore, the connection of the two inserts being made by the conical section II, which can be reinforced by ribs if necessary. The conical insert 4 is provided on the inside with, for example, four thermocouples 15.1, 15.2, ..., 15.N and the cylindrical insert 3 on the inside with, for example, two thermocouples 14.1, ..., 14.N equipped. The thermocouple connections can, for example, be led out of the hot separator 1 via gland seals.

Der Heißabscheider 1 ist beispielweise auf eine zulässige Betriebstemperatur von 500 °C und einen zulässigen Betriebsüberdruck von bis zu 700 bar ausgelegt, wobei zwischen Innen- und Außenfläche der Einbauten Drucksausgleich besteht.The hot separator 1 is designed, for example, for a permissible operating temperature of 500 ° C. and a permissible operating pressure of up to 700 bar, with pressure equalization between the inside and outside surface of the internals.

Claims (3)

  1. Hot separator for the high-pressure hydrogenation of coals, tars, mineral oils, their distillation products and extraction products and similar substances, wherein the hot separator serves for the separation of the reacted products from a semi-solid phase reactor into a bottom product, namely predominantly high-boiling oils, ash, possibly catalyst, undissolved coal and into volatile reaction products, wherein the hot separator consists of a pressure-resistant vessel, which contains an upper cylindrical and a lover conical wall insert and the content of which is cooled by a cooling system by means of a coolant gas, especially with stepped cooling, characterized in that the cooling systems consist of square-section hollow profiles, helically wound, bearing upon one another.
  2. Hot separator according to Claim 1, characterized in that the square-section hollow profiles are provided with a cylindrical bore.
  3. Hot separator according to Claim 2, characterized in that the pipe turns on the inside are connected together by weld seams, these weld seams are smoothed on the inner face, and that the turns on the outer side are connected together by an intermittent, outer load-bearing seam.
EP86117454A 1986-02-08 1986-12-16 Hot separator Expired - Lifetime EP0233352B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3603971A DE3603971C1 (en) 1986-02-08 1986-02-08 Method for operating a hot separator and associated device
DE3603971 1986-02-08

Publications (3)

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EP0233352A2 EP0233352A2 (en) 1987-08-26
EP0233352A3 EP0233352A3 (en) 1989-01-04
EP0233352B1 true EP0233352B1 (en) 1992-03-25

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EP86117454A Expired - Lifetime EP0233352B1 (en) 1986-02-08 1986-12-16 Hot separator

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EP (1) EP0233352B1 (en)
JP (1) JPH0813975B2 (en)
AU (1) AU597026B2 (en)
DE (2) DE3603971C1 (en)
SU (1) SU1665866A3 (en)
ZA (1) ZA87688B (en)

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Publication number Priority date Publication date Assignee Title
CN101892077B (en) * 2010-02-23 2013-08-28 何巨堂 Two-stage hydrocarbon hydrogenation method with serial high-pressure parts
CN102051222A (en) * 2010-12-26 2011-05-11 何巨堂 High-nitrogen high-aromatic-oil hydrogenation conversion method based on two-stage process
CN102585898A (en) * 2011-12-15 2012-07-18 何巨堂 High-nitrogen high-aromatic-oil two-stage method hydrocarbon hydrogenation method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE885398C (en) * 1942-12-15 1953-08-03 Ruhroel Ges Mit Beschraenkter Process to avoid deposits and coking in the hot separators of high pressure hydrogenation
DE971419C (en) * 1943-01-29 1959-01-29 Braunkohle Benzin Ag Hot separator
US4387015A (en) * 1982-09-30 1983-06-07 International Coal Refining Company Coal liquefaction quenching process

Also Published As

Publication number Publication date
EP0233352A3 (en) 1989-01-04
DE3603971C1 (en) 1987-04-30
JPH0813975B2 (en) 1996-02-14
DE3684593D1 (en) 1992-04-30
JPS62185785A (en) 1987-08-14
AU597026B2 (en) 1990-05-24
SU1665866A3 (en) 1991-07-23
ZA87688B (en) 1987-09-30
AU6827987A (en) 1987-08-13
EP0233352A2 (en) 1987-08-26

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