EP0233352A2 - Séparateur à chaud - Google Patents

Séparateur à chaud Download PDF

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Publication number
EP0233352A2
EP0233352A2 EP86117454A EP86117454A EP0233352A2 EP 0233352 A2 EP0233352 A2 EP 0233352A2 EP 86117454 A EP86117454 A EP 86117454A EP 86117454 A EP86117454 A EP 86117454A EP 0233352 A2 EP0233352 A2 EP 0233352A2
Authority
EP
European Patent Office
Prior art keywords
hot separator
insert
cylindrical
conical
cooling
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.)
Granted
Application number
EP86117454A
Other languages
German (de)
English (en)
Other versions
EP0233352A3 (en
EP0233352B1 (fr
Inventor
Friedhelm Bohlander
Karl-Heinz Vössing
Wolfdieter Klein
Frank Dr. Mirtsch
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.)
RAG AG
Original Assignee
Ruhrkohle AG
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 Ruhrkohle AG filed Critical Ruhrkohle AG
Publication of EP0233352A2 publication Critical patent/EP0233352A2/fr
Publication of EP0233352A3 publication Critical patent/EP0233352A3/de
Application granted granted Critical
Publication of EP0233352B1 publication Critical patent/EP0233352B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C10G1/06—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 method for operating a hot separator downstream of the sump phase reactors of high-pressure hydrogenation of coal, tars, mineral oils, their distillation and extraction products and similar substances, for the separation of the mash from the sump phase reactors into a sump product, namely predominantly high-boiling oils, ashes, optionally catalyst, undissolved coal and in volatile reaction products of the type specified in the preamble of claim 1.
  • the invention further relates to a hot separator, made of a pressure-resistant container, which contains an upper cylindrical and a lower conical wall insert and the content of which can be cooled by a cooling system by means of a cooling gas and which has a connection piece for the entry of the reacted products, top product outlet, bottom product outlet, if necessary Hydrogen gas inlet at the bottom of the conical insert, level measurements and the cooling system is equipped.
  • Hot separators such as those used in systems for liquefying coal hydrogenation, consist of pressure-resistant containers that contain inserts cooled by coils to facilitate separation and 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-PS 97l 4l9).
  • reaction products from the bottom phase reactors are separated 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 headed.
  • 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 headed.
  • the reaction products have to be cooled down somewhat, for example 10 to 40 1C 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 temperature of the products located in the separator is lowered in that a cooling coil is wound around the conical use of the separator, with pressure equalization between the inner and outer surfaces of the internals.
  • This coiled cooling coil has various process-related disadvantages: between the cooling coil and the outside of the conical insert, solid deposits form over time, which change the heat transfer coefficient. As a result, undesirable solid deposits on the product side on the inside of the conical insert cannot be detected by simple thermal measurements of the heat transfer coefficient. Furthermore, by means of a single cooling circuit optimal separate temperature setting of the bottom product in the conical insert and the gas / vapor phase in the cylindrical insert is not possible.
  • both the conical insert 4 and the cylindrical insert 3 from a spirally wound square hollow profile l2, in that these inserts are wound in circumferential turns, the overall cooling performance is improved.
  • 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 l2 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 made of square profile l2 forming the cylindrical insert 3 are welded to one another on the inside without interruption in the same way as in the case of the conical insert 4, 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 l2 are expediently wound at a distance and are not welded to one another. They serve as expansion compensators during operation when heated.
  • the composite system consists of wound and welded square profiles l2, 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 set 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 l3 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 weft ll 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 1C.
  • 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 inserts.
  • the coolant flows are for the conical insert 4 via sockets for cooling gas inlet (l0 / l) and cooling gas outlet (l0 / 2), for the cylindrical insert 3 via sockets for cooling gas inlet (l0 / 3) and cooling gas outlet ( l0 / 4) led.
  • the conical insert 4 has a slope of 10 degrees, for example, and is wound from a square profile 12 with a cylindrical bore.
  • the cylindrical insert 3 is also wound from the square profile l2 with a cylindrical bore, the connection of the two inserts being made by the conical weft II, which can be reinforced by ribs if necessary.
  • the conical insert 4 is on the inside with, for example, four thermocouples l5.l, l5.2, ..., l5.N and the cylindrical insert 3 on the inside with, for example, two thermocouples l4.l, ..., l4.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 1C and a permissible operating pressure of up to 700 bar, with pressure equalization between the inside and outside surface of the internals.
  • cooling coils consisting of tubes 13 are wound around a thin cone wall 6 or cylinder wall 5 and welded on.
  • the reference numerals 1 and 2 again designate the hot separator and the pressure-resistant container.
  • the reference symbols for the connecting pieces 7, 8, 9, l0 / l, l0 / 2, l0 / 3 and l0 / 4 and for the element II have the meanings given in the explanation of FIG.

Landscapes

  • 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)
EP86117454A 1986-02-08 1986-12-16 Séparateur à chaud Expired - Lifetime EP0233352B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3603971A DE3603971C1 (de) 1986-02-08 1986-02-08 Verfahren zum Betreiben eines Heissabscheiders und zugehoerige Vorrichtung
DE3603971 1986-02-08

Publications (3)

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

Family

ID=6293689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117454A Expired - Lifetime EP0233352B1 (fr) 1986-02-08 1986-12-16 Séparateur à chaud

Country Status (6)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892077B (zh) * 2010-02-23 2013-08-28 何巨堂 一种高压部分串联的两段法烃氢化方法
CN102051222A (zh) * 2010-12-26 2011-05-11 何巨堂 一种两段法高氮高芳烃油加氢转化方法
CN102585898A (zh) * 2011-12-15 2012-07-18 何巨堂 一种高氮高芳烃油两段法烃氢化方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE885398C (de) * 1942-12-15 1953-08-03 Ruhroel Ges Mit Beschraenkter Verfahren zur Vermeidung von Absetzungen und Verkokungen in den Heissabscheidern der Hochdruckhydrierung
DE971419C (de) * 1943-01-29 1959-01-29 Braunkohle Benzin Ag Heissabscheider

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387015A (en) * 1982-09-30 1983-06-07 International Coal Refining Company Coal liquefaction quenching process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE885398C (de) * 1942-12-15 1953-08-03 Ruhroel Ges Mit Beschraenkter Verfahren zur Vermeidung von Absetzungen und Verkokungen in den Heissabscheidern der Hochdruckhydrierung
DE971419C (de) * 1943-01-29 1959-01-29 Braunkohle Benzin Ag Heissabscheider

Also Published As

Publication number Publication date
JPS62185785A (ja) 1987-08-14
EP0233352A3 (en) 1989-01-04
AU6827987A (en) 1987-08-13
EP0233352B1 (fr) 1992-03-25
JPH0813975B2 (ja) 1996-02-14
SU1665866A3 (ru) 1991-07-23
ZA87688B (en) 1987-09-30
AU597026B2 (en) 1990-05-24
DE3684593D1 (de) 1992-04-30
DE3603971C1 (de) 1987-04-30

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