EP0662506B1 - Verfahren und Vorrichtung zur Kühlung von Partialoxidationsrohgas - Google Patents

Verfahren und Vorrichtung zur Kühlung von Partialoxidationsrohgas Download PDF

Info

Publication number
EP0662506B1
EP0662506B1 EP94114403A EP94114403A EP0662506B1 EP 0662506 B1 EP0662506 B1 EP 0662506B1 EP 94114403 A EP94114403 A EP 94114403A EP 94114403 A EP94114403 A EP 94114403A EP 0662506 B1 EP0662506 B1 EP 0662506B1
Authority
EP
European Patent Office
Prior art keywords
crude gas
cooling fluid
quenching space
space
gas duct
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 - Lifetime
Application number
EP94114403A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0662506A1 (de
Inventor
Johannes Dr. Kowoll
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers GmbH
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 Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Publication of EP0662506A1 publication Critical patent/EP0662506A1/de
Application granted granted Critical
Publication of EP0662506B1 publication Critical patent/EP0662506B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/466—Entrained flow processes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/52—Ash-removing devices
    • C10J3/526—Ash-removing devices for entrained flow gasifiers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/78—High-pressure apparatus
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • C10J3/845—Quench rings
    • 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
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00—Other direct-contact heat-exchange apparatus
    • F28C3/02—Other direct-contact heat-exchange apparatus the heat-exchange media both being gases or vapours
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0956—Air or oxygen enriched air
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • C10J2300/0979—Water as supercritical steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems

Definitions

  • the invention relates to a method for cooling raw gas, by partial oxidation from fine-grained to dusty Fuels in an entrained-flow gasifier in the presence of oxygen and / or air and water vapor Pressures up to 100 bar and temperatures above the Slag melting point is obtained, the raw gas in a vertical raw gas duct with a gaseous or vaporous one Quenching cooling fluid, which is in an annular, vertically downward flow in the Area of the raw gas duct near the wall is introduced into the raw gas duct becomes.
  • the invention also relates to a raw gas duct to carry out the procedure.
  • the gasification temperatures are in the range from approx. 1500 ° C to approx. 2000 ° C.
  • the generated Partial oxidation raw gas flows through the so-called raw gas channel. it cools down through chemical reactions as well by dissipating heat to the cooled walls of the Raw gas channel. This is usually used as the raw gas duct designated that area. the one from the reactor shaft located above the burner level the gasification reactor and the itself immediately following, usually as Radiation cooler pipe section exists, Depending on the height and cooling of the raw gas duct stand behind this temperature of the partial oxidation raw gas between 800 and 1600 ° C on.
  • the gas is then used for further cooling to the raw gas duct in a convection cooler or a combined radiation-convection heat exchanger initiated.
  • That in the gasification reactor generated partial oxidation raw gas contains however constituent parts that result from the sinking
  • caking or deposits can form from sticky or molten ash or slag particles consist. Because of these caking or deposits, that with conventional means only very much gas flow are difficult to remove and impaired heat dissipation from the gas or even completely prevented under certain circumstances.
  • the hot one Raw gas flow in the area of the raw gas channel behind the gasification reactor with a lower one Gaseous or vaporous temperature Mix cooling fluid.
  • This process which in referred to as quenching by experts with returned cold product gas, another, the desired gas composition is not negatively influencing gas or with water vapor be performed.
  • the cooling fluid has an annular channel from top to bottom and occurs in the area where the raw gas channel to the Carburetor connects into the raw gas duct.
  • the cooling fluid then flows as a ring flow near the wall in direct current the raw gas to be cooled upwards, the cooling fluid contact of sticky particles of the raw gas with the wall surface prevent the raw gas channel.
  • the cooling effect of the quench gas in the known flow control is through indirect cooling supports the wall surface of the raw gas duct.
  • the invention is therefore based on the object of a method with the characteristics described above to further develop that, on the one hand, malfunctions due to the formation of deposits is avoided as far as possible be and that on the other hand to carry out the process a raw gas duct that is as simple as possible without disruptive Internals can be used.
  • the raw gas channel consists of the one above the burner level of the gasification reactor Reactor shaft 1, to which immediately the lower one above the gasification reactor Quench room 2 connects.
  • the lower quench room merges into the upper quench room 3, whose However, the diameter is smaller than the diameter of the lower quench chamber 2.
  • the introduction of the quench gas serving as the cooling fluid via the ring channel 4 in the area near the wall upper quench chamber 3.
  • To the upper quench chamber 3 closes the radiation cooler Pipe section 5 through which the raw gas channel with the downstream one, in the figure not shown convection cooler or one combined cooler-heat exchanger in connection stands.
  • the device When operating the device according to the invention flows through the ring channel 4 introduced Quench gas initially in the area near the wall the upper quench chamber 3 vertically downwards and thus gets into the lower one Quench chamber 2, the diameter of which is larger than the diameter of the upper quench chamber 3.
  • the Enlargement of the diameter in the quench chamber 2 is chosen so that thereby under Influence of the upward flowing partial oxidation raw gas the downward flow of the quench gas reversed and thus penetration of quench gas in the reactor shaft 1 is avoided. Rather, the quench gas arrives together with that from the reactor shaft 1 emerging and upward flowing partial oxidation raw gas in the pipe section 5, in which both Gases mixed together and continuing at the same time be cooled.
  • the direction of flow of the gases is marked by the arrows in the illustration.
  • Quench gas prevents the slag layer 6 out of the lower quench chamber 2 can grow into the upper quench chamber 3.
  • the slag layer 6 can still be parallel to Downward flow of quench gas grow and thus form a cone-shaped deposit 7. This However growth is interrupted at the point at which the speed of the downward flowing Quench gas too small and its temperature become too high to melt the die cone-shaped deposit forming slag prevent. Because under certain operating conditions, namely relatively low gasification temperature and high ash melting point of the used Coal, the temperature in the lower quench room 2 may be too low to be cone-shaped Deposits 7 melt and their growth to prevent it in these circumstances expedient if the quench gas supply via the Ring channel 4 periodically interrupted for a short time becomes.
  • the quench gas supply can either be completely interrupted or the quench gas is wholly or partly via special induction facilities, the ones in the illustration are not closer are shown. in a preferably oblique downward flow in the upper Quench room 3 initiated. This possibility is in the figure indicated by the arrows 8. In principle, it is of course also possible in this Trap the quench gas inlet in a horizontal or diagonally upward flow to make.
  • the quench gas with a digestion that is, with a speed component in the circumferential direction
  • the required swirl of the Quench gas can be achieved in this way, for example be that the quench gas contrary to the illustration not from above in the illustration, but is introduced tangentially into the ring channel 4.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Industrial Gases (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
EP94114403A 1993-11-25 1994-09-14 Verfahren und Vorrichtung zur Kühlung von Partialoxidationsrohgas Expired - Lifetime EP0662506B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4340156A DE4340156A1 (de) 1993-11-25 1993-11-25 Verfahren und Vorrichtung zur Kühlung von Partialoxidationsrohgas
DE4340156 1993-11-25

Publications (2)

Publication Number Publication Date
EP0662506A1 EP0662506A1 (de) 1995-07-12
EP0662506B1 true EP0662506B1 (de) 1999-02-24

Family

ID=6503405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94114403A Expired - Lifetime EP0662506B1 (de) 1993-11-25 1994-09-14 Verfahren und Vorrichtung zur Kühlung von Partialoxidationsrohgas

Country Status (4)

Country Link
US (1) US5571295A (es)
EP (1) EP0662506B1 (es)
DE (2) DE4340156A1 (es)
ES (1) ES2128476T3 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8960651B2 (en) 2008-12-04 2015-02-24 Shell Oil Company Vessel for cooling syngas
US9051522B2 (en) 2006-12-01 2015-06-09 Shell Oil Company Gasification reactor

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10330512B4 (de) * 2003-07-05 2006-11-23 Sustec Schwarze Pumpe Gmbh Verfahren und Vorrichtung zur Verhinderung von Ablagerungen in Rohgasdurchführungen
CA2606846C (en) 2005-05-02 2013-12-10 Shell Internationale Research Maatschappij B.V. Method and system for producing synthesis gas
CN101200650B (zh) 2006-11-01 2012-01-18 国际壳牌研究有限公司 将固体含碳供给料处理成液体的方法
DE102007027601A1 (de) * 2007-06-12 2008-12-18 Uhde Gmbh Herstellung und Kühlung von gasförmigen Kohlevergasungsprodukten
WO2009065841A1 (en) 2007-11-20 2009-05-28 Shell Internationale Research Maatschappij B.V. Process for producing a purified synthesis gas stream
CN101348735B (zh) * 2008-08-26 2012-07-25 浙江大学 流化床裂解煤气净化和焦油回收系统及方法
WO2010040764A2 (en) 2008-10-08 2010-04-15 Shell Internationale Research Maatschappij B.V. Process to prepare a gas mixture of hydrogen and carbon monoxide
CN102264679B (zh) 2008-12-22 2014-07-23 国际壳牌研究有限公司 制备甲醇和/或二甲醚的方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971830A (en) * 1958-06-18 1961-02-14 Sumitomo Chemical Co Method of gasifying pulverized coal in vortex flow
NL178134C (nl) * 1974-06-17 1986-02-03 Shell Int Research Werkwijze en inrichting voor het behandelen van een heet produktgas.
DE2504060A1 (de) * 1975-01-31 1976-08-05 Otto & Co Gmbh Dr C Unter druck arbeitender schlackenbadgenerator
DE2710154C2 (de) * 1977-03-09 1982-09-23 Dr. C. Otto & Comp. Gmbh, 4630 Bochum Unter Druck und hoher Temperatur arbeitender Gaserzeuger
US4279622A (en) * 1979-07-13 1981-07-21 Texaco Inc. Gas-gas quench cooling and solids separation process
US4466808A (en) * 1982-04-12 1984-08-21 Texaco Development Corporation Method of cooling product gases of incomplete combustion containing ash and char which pass through a viscous, sticky phase
GB8312103D0 (en) * 1983-05-04 1983-06-08 Shell Int Research Cooling and purifying hot gas
US4494963A (en) * 1983-06-23 1985-01-22 Texaco Development Corporation Synthesis gas generation apparatus
US4581899A (en) * 1984-07-09 1986-04-15 Texaco Inc. Synthesis gas generation with prevention of deposit formation in exit lines
DE3427088C2 (de) * 1984-07-18 1987-05-07 Korf Engineering GmbH, 4000 Düsseldorf Vorrichtung zum Abkühlen eines heißen Produktgases
DE3808729A1 (de) * 1988-03-16 1989-10-05 Krupp Koppers Gmbh Verfahren und vorrichtung zur abkuehlung des aus einem vergasungsreaktor austretenden heissen produktgases
DE3809313A1 (de) * 1988-03-19 1989-10-05 Krupp Koppers Gmbh Verfahren und vorrichtung zum kuehlen von partialoxidationsgas
DE3816340A1 (de) * 1988-05-13 1989-11-23 Krupp Koppers Gmbh Verfahren und vorrichtung zum kuehlen eines heissen produktgases, das klebrige bzw. schmelzfluessige partikel enthaelt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9051522B2 (en) 2006-12-01 2015-06-09 Shell Oil Company Gasification reactor
US8960651B2 (en) 2008-12-04 2015-02-24 Shell Oil Company Vessel for cooling syngas

Also Published As

Publication number Publication date
ES2128476T3 (es) 1999-05-16
DE4340156A1 (de) 1995-06-01
DE59407843D1 (de) 1999-04-01
US5571295A (en) 1996-11-05
EP0662506A1 (de) 1995-07-12

Similar Documents

Publication Publication Date Title
EP0616023B1 (de) Vergasungsapparat für die Druckvergasung von feinteiligen Brennstoffen
DE102011088628B4 (de) Verfahren und Vorrichtung zur Flugstromvergasung fester Brennstoffe unter Druck
DE19714376C1 (de) Synthesegaserzeuger mit Brenn- und Quenchkammer
DE3530918C2 (de) Flugstrom-Kohlenstaub-Vergaser
DE102007006981B4 (de) Verfahren, Vergasungsreaktor und Anlage zur Flugstromvergasung fester Brennstoffe unter Druck
EP2616529B1 (de) Vorrichtung und verwendung der vorrichtung zur behandlung eines schlackehaltigen heissgasstromes
DE69231941T2 (de) Verfahren zur Behandlung von Gasen und körnigen Feststoffen in einer Wirbelschicht
DE3809313A1 (de) Verfahren und vorrichtung zum kuehlen von partialoxidationsgas
EP0662506B1 (de) Verfahren und Vorrichtung zur Kühlung von Partialoxidationsrohgas
DE2952065A1 (de) Verfahren zur trockenkuehlung von koks und kokskuehleinrichtung zur durchfuehrung des verfahrens
DE2918859A1 (de) Anlage zum entgasen und/oder vergasen von kohle
EP0616022B1 (de) Verfahren für die Druckvergasung von feinteiligen Brennstoffen
DD299893A7 (de) Vorrichtung zum austrag von heissgas und schlacke
DE3601786A1 (de) Einrichtung zur abkuehlung des aus einem unter erhoehtem druck betriebenen vergasungsreaktor austretenden heissen produktionsgases
DE3628866C2 (es)
EP0618282B1 (de) Verfahren zur Kühlung von durch Vergasung gewonnenem Rohgas
EP0632122B1 (de) Verfahren und Vorrichtung zum Abscheiden von Schlacketröpfchen aus einem heissen Rohgas aus der Verbrennung oder Vergasung fester oder flüssiger Brennstoffe
EP0433579B1 (de) Verfahren und Vorrichtung zur Kühlung von Partialoxidationsrohgas
DE2816282C2 (de) Müllverbrennungsofen mit einem Wirbelbett
EP0533866B1 (de) Verfahren zum herstellen von flüssigem metall aus feinkörnigen metalloxidpartikeln und reduktions- und schmelzofen zur durchführung des verfahrens
DE1496428A1 (de) Verfahren und Vorrichtung zur Herstellung von Glasperlen
DE4233724C2 (de) Verfahren zur Abscheidung von Feststoffpartikeln aus heißen Verbrennungsabgasen und Vorrichtung zur Durchführung des Verfahrens
DE4307462C2 (de) Einrichtung für die Vergasung feinkörniger bis staubförmiger Brennstoffe und Verfahren zu deren Betrieb
DE102013003413A1 (de) Verfahren und Vorrichtung zur Abtrennung flüssiger Schlackepartikel
DE3145699A1 (de) Vergaser fuer kohlenstoffhaltige, feinteilige brennstoffe, insbes. wirbelschichtvergasern, mit zusaetzlicher, in das gefaess hineinragender vergasungskammer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR IT NL

17P Request for examination filed

Effective date: 19951020

17Q First examination report despatched

Effective date: 19980129

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT NL

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59407843

Country of ref document: DE

Date of ref document: 19990401

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2128476

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010827

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010903

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010904

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20010918

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020915

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030401

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030603

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050914