EP0567674A1 - Heat exchange for cooling synthesis gas produced in a coal gasification plant - Google Patents

Heat exchange for cooling synthesis gas produced in a coal gasification plant Download PDF

Info

Publication number
EP0567674A1
EP0567674A1 EP19920107283 EP92107283A EP0567674A1 EP 0567674 A1 EP0567674 A1 EP 0567674A1 EP 19920107283 EP19920107283 EP 19920107283 EP 92107283 A EP92107283 A EP 92107283A EP 0567674 A1 EP0567674 A1 EP 0567674A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tube
pipe
synthesis gas
tube plate
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
EP19920107283
Other languages
German (de)
French (fr)
Other versions
EP0567674B1 (en
Inventor
Michael Fix
Konrad Nassauer
Rainer Dr. Gadow
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.)
Deutsche Babcock Borsig AG
Original Assignee
Deutsche Babcock Borsig 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 Deutsche Babcock Borsig AG filed Critical Deutsche Babcock Borsig AG
Priority to EP19920107283 priority Critical patent/EP0567674B1/en
Publication of EP0567674A1 publication Critical patent/EP0567674A1/en
Application granted granted Critical
Publication of EP0567674B1 publication Critical patent/EP0567674B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/002Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/04Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0075Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems

Abstract

A heat exchanger for cooling synthesis gas produced in a cool gasification plant consists of heat exchanger tubes (1) through which the synthesis gas to be cooled flows, and which are held in two tube plates (2, 3) and surrounded by a jacket (4). The tube plate (2) on the gas inlet side is covered by a layer of individual cuboid snouts (12) which are arranged next to one another and abut one another at the outside edges. Each snout (12) has a conical opening (15) which narrows into a tube section (14) which projects into a heat exchanger tube (1). <IMAGE>

Description

  • The invention relates to a heat exchanger for cooling synthesis gas generated in a coal gasification plant with the features of the preamble of patent claim 1.
  • Synthesis gas, which is produced by gasification of coal, contains constituents which, like ash particles, lead to erosion or, like sulfur compounds, to high-temperature corrosion on the pipe plate and in the pipe inlet. In waste heat exchangers for gases from ammonia synthesis (Chem.-Ing.-Tech. 56 (1984), pages 356 to 358) it is known to protect the gas inlet-side tube plate by a cover with a ceramic ramming compound and by the ramming compound into the pipe inlet Guide the inlet tube.
  • The invention has for its object to effectively protect the generic heat exchanger by measures which are matched to the synthesis gas to be cooled, which comes from a coal gasification plant, on the gas inlet side against high-temperature corrosion and erosion.
  • This object is achieved in a generic heat exchanger according to the invention by the characterizing features of claim 1. Advantageous embodiments of the invention are the subject of the dependent claims.
  • The grommets used can be made from a ceramic material which is characterized by high resistance to temperature changes and high erosion resistance. The grommets serve as a conically elongated pipe inlet and, when installed, form a closed assembly that covers the entire pipe plate including the pipe inlet of the heat exchanger pipes and thus protects them. The special conical inlet shape of the spouts prevents the synthesis gas contained in it from caking Solid particles that would lead to a blockage of the pipe inlet through bridging. Due to the conical inlet shape of the spout according to the invention, a constant increase in speed is achieved, as a result of which possible deposits are removed by the acceleration of the synthesis gas and the solid particles contained in the synthesis gas. The two-layer coating on the tube plate, the pipe welding and in the pipe inlet gives these parts a high resistance to high-temperature corrosion and erosion. This protection is effective when a spout is destroyed.
  • An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it:
  • Fig. 1
    the longitudinal section through a heat exchanger,
    Fig. 2
    the top view of a part of the gas inlet-side tube plate,
    Fig. 3
    the detail Z of Fig. 1 and
    Fig. 4
    a single spout in perspective.
  • The heat exchanger has a bundle of heat exchanger tubes 1, two of which are shown. The heat exchanger tubes 1 are each held in a tube plate 2, 3 at both ends. The tube plates 2, 3 are fastened in a jacket 4 which encloses the heat exchanger tubes 1. Within the jacket 4, a gas inlet chamber 5 is connected to the upper tube plate 2 in the drawing and a gas outlet chamber 6 to the lower tube plate 3. The gas inlet chamber 5 is connected via a pipe, not shown, to a reactor, also not shown, in which coal is gasified. The synthesis gas generated by the gasification enters the gas inlet chamber 5, flows through the heat exchanger tubes 1 while releasing heat, and exits the gas outlet chamber 6 in a cooled state.
  • The jacket 4 of the heat exchanger is provided with an inlet nozzle 7 and an outlet nozzle 8. Through the inlet connector 7, water is fed into the interior of the jacket 4 as a coolant, which evaporates through the heat exchange with the hot synthesis gas flowing through the heat exchanger tubes 1 and is discharged as a water vapor mixture through the outlet connector 8. The water vapor mixture is fed to the steam drum of a steam generation system, not shown.
  • The heat exchanger tubes 1 are designed as composite tubes and contain an austenitic inner tube 9 in order to counteract high-temperature corrosion of the heat exchanger tubes 1 by the hot synthesis gas. The inner tube 9 is closely enclosed by an outer tube 10, which is fastened in the tube plate 2 via a tube weld 11.
  • To protect against high-temperature corrosion and erosion, the tube plate 2 on the gas inlet side is provided with a ceramic layer on the side facing the gas inlet chamber 5, which layer consists of individual ceramic nozzles 12. The spout 12 has a cuboid outer contour 13 in the upper part, which tapers downwards and ends in a tube section 14. Each grommet 12 has an opening 15 which starts from the rectangular outer contour 13, narrows conically and merges into the inner cross section of the pipe section 14. The outside diameter of the pipe section 14 of the grommet 12 is slightly smaller than the inside diameter of the heat exchanger pipe 1, so that the pipe section 14 can be inserted into the inlet of the heat exchanger pipe 1. The pipe section 14 extends into the inlet of a heat exchanger pipe 1 so that the lower edge of the pipe section 14 engages over the inner pipe 9.
  • The grommets 12 are placed on the tube plate 2 so that the pipe section 14 of a grommet 12 is inserted into one of the heat exchanger tubes 1 and that the outer contour 13th abut adjacent spouts 12 at a distance above the tube plate 2. In this way, a closed bandage is formed, which covers and protects the entire tube plate 2 on the gas inlet side.
  • At each corner of the parallelepiped-shaped outer contour 13, the grommet 12 is provided with an edge recess 16 which extends over a quarter-circular arc. A bolt 17 is guided through the edge recesses 16 of the abutting spouts 12 and is fastened on the tube plate 2. The spouts 12 are fixed on the tube plate 2 by means of a nut 18 screwed onto the bolt 17.
  • The tube plate 2 and the tube weld 11 of the heat exchanger tubes 1 are provided with a two-layer coating 20. The first layer, which is applied to the metallic material of the tube plate 2, is an atmospheric plasma-sprayed metallic layer which serves as protection against oxidation and high-temperature corrosion of the base material and as an adhesion promoter for the second layer. The second layer is an atmospheric plasma-sprayed ceramic layer, which is resistant to high temperatures and erosion. The coating 20 is also applied in the tube inlets of the heat exchanger tubes 1 in order to counteract the increased risk of erosion and the introduction of heat, which is caused by eddy formation in the turbulent area of the tube inlet section, in particular at the end of the spout 12.

Claims (6)

  1. Heat exchanger for cooling synthesis gas generated in a coal gasification plant, consisting of heat exchanger tubes (1) through which the synthesis gas to be cooled flows, held in two tube plates (2, 3) and surrounded by a jacket (4), the tube plate ( 2) is covered with a ceramic layer, characterized in that the layer consists of individual, side-by-side, cuboid grommets (12) abutting on the outer edges, and in that each grommet (12) has a conical opening (15) which is in narrows a pipe section (14) which projects into a heat exchanger pipe (1).
  2. Heat exchanger according to claim 1, characterized in that the abutting edges of the spout (12) are arranged at a distance from the tube plate (2) and that the free space between the underside of the spout (12) and the tube plate (2) with ceramic mats ( 19) is filled out.
  3. Heat exchanger according to Claim 1 or 2, characterized in that edge recesses (16) are formed in the corners of the cuboid outer contour (13) of the spouts (12) and that a bolt (17) is guided through the edge recesses (16) of abutting spouts (12) is attached to the tube plate (2).
  4. Heat exchanger according to one of Claims 1 to 3, characterized in that the tube plate (2) and the tube inlet of the heat exchanger tubes (1) are coated on the side facing the spouts (12) with a two-layer, metallic and ceramic coating (20).
  5. Heat exchanger according to claim 4, characterized in that the two-layer coating (20) in the pipe inlet extends beyond the end of the pipe section (14) of the spout (12) inserted into the heat exchanger pipe (1).
  6. Heat exchanger according to one of claims 1 to 5, characterized in that the heat exchanger tubes (1) are constructed as composite tubes and each consist of an inner tube (9) which is resistant to high-temperature corrosion and which is closely surrounded by an outer tube (10).
EP19920107283 1992-04-29 1992-04-29 Heat exchange for cooling synthesis gas produced in a coal gasification plant Expired - Lifetime EP0567674B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19920107283 EP0567674B1 (en) 1992-04-29 1992-04-29 Heat exchange for cooling synthesis gas produced in a coal gasification plant

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE1992500074 DE59200074D1 (en) 1992-04-29 1992-04-29 Heat exchanger for cooling synthesis gas generated in a coal gasification plant.
EP19920107283 EP0567674B1 (en) 1992-04-29 1992-04-29 Heat exchange for cooling synthesis gas produced in a coal gasification plant
US07/931,822 US5246063A (en) 1992-04-29 1992-08-18 Heat exchanger for cooling synthesis gas generated in a cool-gasification plant
JP28810592A JP3362170B2 (en) 1992-04-29 1992-09-15 Heat exchanger for cooling syngas generated in coal gasifier

Publications (2)

Publication Number Publication Date
EP0567674A1 true EP0567674A1 (en) 1993-11-03
EP0567674B1 EP0567674B1 (en) 1994-02-23

Family

ID=8209584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920107283 Expired - Lifetime EP0567674B1 (en) 1992-04-29 1992-04-29 Heat exchange for cooling synthesis gas produced in a coal gasification plant

Country Status (4)

Country Link
US (1) US5246063A (en)
EP (1) EP0567674B1 (en)
JP (1) JP3362170B2 (en)
DE (1) DE59200074D1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706014A1 (en) * 1994-10-07 1996-04-10 ANGELO PO GRANDI CUCINE S.p.A. Heat protection shield for heat exchanger
DE19534823A1 (en) * 1995-09-20 1997-03-27 Ruhr Oel Gmbh Shell and tube heat exchangers
DE10028568C1 (en) * 2000-06-09 2001-06-07 Uwe Schwerdtfeger Tubular heat exchanger used for treating hot sulfur-containing gases comprises a wall made of composite material having a steel plate and a sealed refractory concrete stamping composition and a tube made of a heat resistant material
EP1139056A2 (en) 2000-03-28 2001-10-04 Borsig GmbH Device for the inlet of hot gases in the tubes of a heating surface, welded to the end plate of a waste heat boiler
EP1674815A1 (en) * 2004-12-21 2006-06-28 Borsig GmbH Heat exchanger for cooling a particle laden hot gas
DE102005032118A1 (en) * 2005-07-07 2007-01-11 Ruhr Oel Gmbh Tube bundle heat exchanger with wear-resistant tube bottom lining
WO2007073436A1 (en) * 2005-12-20 2007-06-28 Caterpillar Inc. Corrosive resistant heat exchanger
EP2122013B1 (en) * 2007-03-22 2015-08-05 Alstom Technology Ltd Flue gas cooling and cleaning system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19501422C2 (en) * 1995-01-19 2002-03-28 Borsig Gmbh Cooled transition piece between a heat exchanger and a reactor
US5775412A (en) * 1996-01-11 1998-07-07 Gidding Engineering, Inc. High pressure dense heat transfer area heat exchanger
US5647432A (en) * 1996-04-10 1997-07-15 Blasch Precision Ceramics, Inc. Ceramic ferrule and ceramic ferrule refractory wall for shielding tube sheet/boiler tube assembly of heat exchanger
AU4090600A (en) 1999-06-30 2001-01-04 Rohm And Haas Company High performance heat exchangers
US6284324B1 (en) 2000-04-21 2001-09-04 Eastman Chemical Company Coal gasification burner shield coating
US8828107B2 (en) 2006-01-31 2014-09-09 Linde Process Plants, Inc. Process and apparatus for synthesis gas heat exchange system
US7574981B1 (en) * 2006-10-05 2009-08-18 Citgo Petroleum Corporation Apparatus and method for improving the durability of a cooling tube in a fire tube boiler
US20080118310A1 (en) * 2006-11-20 2008-05-22 Graham Robert G All-ceramic heat exchangers, systems in which they are used and processes for the use of such systems
GB2530896B (en) * 2013-06-20 2016-11-02 Boustead Int Heaters Ltd Improvements in waste heat recovery units
EP2881691A1 (en) * 2013-12-09 2015-06-10 Balcke-Dürr GmbH Heat exchanger with tube sheet and inserted sleeve
CN106969659B (en) * 2017-04-14 2018-10-30 林州市桃园散热科技有限公司 A kind of radiator circulating water strainer and its manufactured radiator

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1222655A (en) * 1959-01-19 1960-06-13 Pechiney Prod Chimiques Sa Improvements in heat exchangers
DE1451225A1 (en) * 1964-12-19 1969-05-14 Linde Ag Tube, in particular for Roehrenwaermeaustauscher
DE1601947A1 (en) * 1968-03-16 1970-08-27 Siegener Ag Geisweid Eisenkons Heat Exchangers for gasfoermige, containing dust and / or aggressive ingredients having Waermemedien
FR2075946A1 (en) * 1970-01-06 1971-10-15 Surface Technology Corp
US3707186A (en) * 1971-01-18 1972-12-26 Foster Wheeler Corp Cooling tube ferrule
US3903964A (en) * 1973-05-15 1975-09-09 Shell Oil Co Heat exchanger for cooling hot gases
FR2571839A1 (en) * 1984-10-12 1986-04-18 Pecquet Tesson Soc Ind Improvements in tubular plates of thermal exchangers
DE3541887A1 (en) * 1985-11-27 1987-06-04 Krupp Koppers Gmbh Heat exchanger for cooling solids containing gases
EP0277070A1 (en) * 1987-01-28 1988-08-03 Jean-Claude Lelant Thermal generator tubular exchanger plate

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150714A (en) * 1955-09-01 1964-09-29 Ind Co Kleinewefers Konst Cast heat exchanger tube assembly
DE1185420B (en) * 1959-10-06 1965-01-14 Sulzer Ag Lining are sensitive to protect items that subject by rugged Temperaturaenderungen media high pressure are durchstroemt and against such Temperaturaenderungen
US3185210A (en) * 1962-05-23 1965-05-25 American Schack Company Inc High temperature recuperator
GB1259111A (en) * 1968-03-15 1972-01-05
SU817396A1 (en) * 1979-04-27 1981-03-30 Предприятие П/Я В-2636 Heat exchange pipe protective apparatus
US4254819A (en) * 1979-10-12 1981-03-10 Atlantic Richfield Company Protecting entry portions of tubes of emergency cooling system
US4294312A (en) * 1979-11-09 1981-10-13 Borsig Gmbh Tube-bundle heat exchanger for cooling a medium having a high inlet temperature
US4585057A (en) * 1982-09-30 1986-04-29 Krw Energy Systems Inc. Cooled tubesheet inlet for abrasive fluid heat exchanger

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1222655A (en) * 1959-01-19 1960-06-13 Pechiney Prod Chimiques Sa Improvements in heat exchangers
DE1451225A1 (en) * 1964-12-19 1969-05-14 Linde Ag Tube, in particular for Roehrenwaermeaustauscher
DE1601947A1 (en) * 1968-03-16 1970-08-27 Siegener Ag Geisweid Eisenkons Heat Exchangers for gasfoermige, containing dust and / or aggressive ingredients having Waermemedien
FR2075946A1 (en) * 1970-01-06 1971-10-15 Surface Technology Corp
US3707186A (en) * 1971-01-18 1972-12-26 Foster Wheeler Corp Cooling tube ferrule
US3903964A (en) * 1973-05-15 1975-09-09 Shell Oil Co Heat exchanger for cooling hot gases
FR2571839A1 (en) * 1984-10-12 1986-04-18 Pecquet Tesson Soc Ind Improvements in tubular plates of thermal exchangers
DE3541887A1 (en) * 1985-11-27 1987-06-04 Krupp Koppers Gmbh Heat exchanger for cooling solids containing gases
EP0277070A1 (en) * 1987-01-28 1988-08-03 Jean-Claude Lelant Thermal generator tubular exchanger plate

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706014A1 (en) * 1994-10-07 1996-04-10 ANGELO PO GRANDI CUCINE S.p.A. Heat protection shield for heat exchanger
DE19534823A1 (en) * 1995-09-20 1997-03-27 Ruhr Oel Gmbh Shell and tube heat exchangers
DE19534823C2 (en) * 1995-09-20 2002-08-22 Ruhr Oel Gmbh Shell and tube heat exchangers
EP1139056A2 (en) 2000-03-28 2001-10-04 Borsig GmbH Device for the inlet of hot gases in the tubes of a heating surface, welded to the end plate of a waste heat boiler
DE10015343A1 (en) * 2000-03-28 2001-10-11 Bbp Environment Gmbh Device for the entry of hot gas into heating surface tubes welded to a tube plate of a waste heat boiler
DE10015343C2 (en) * 2000-03-28 2002-05-23 Borsig Gmbh Heat recovery boiler with heating surface tubes welded in a tube plate
EP1139056A3 (en) * 2000-03-28 2003-08-27 Borsig GmbH Device for the inlet of hot gases in the tubes of a heating surface, welded to the end plate of a waste heat boiler
DE10028568C1 (en) * 2000-06-09 2001-06-07 Uwe Schwerdtfeger Tubular heat exchanger used for treating hot sulfur-containing gases comprises a wall made of composite material having a steel plate and a sealed refractory concrete stamping composition and a tube made of a heat resistant material
EP1674815A1 (en) * 2004-12-21 2006-06-28 Borsig GmbH Heat exchanger for cooling a particle laden hot gas
DE102005032118A1 (en) * 2005-07-07 2007-01-11 Ruhr Oel Gmbh Tube bundle heat exchanger with wear-resistant tube bottom lining
WO2007073436A1 (en) * 2005-12-20 2007-06-28 Caterpillar Inc. Corrosive resistant heat exchanger
US7357126B2 (en) 2005-12-20 2008-04-15 Caterpillar Inc. Corrosive resistant heat exchanger
EP2122013B1 (en) * 2007-03-22 2015-08-05 Alstom Technology Ltd Flue gas cooling and cleaning system

Also Published As

Publication number Publication date
US5246063A (en) 1993-09-21
EP0567674B1 (en) 1994-02-23
JPH05306893A (en) 1993-11-19
DE59200074D1 (en) 1994-03-31
JP3362170B2 (en) 2003-01-07

Similar Documents

Publication Publication Date Title
US7587995B2 (en) Radiant syngas cooler
US4539940A (en) Tube and shell heat exchanger with annular distributor
US4377132A (en) Synthesis gas cooler and waste heat boiler
EP0186641B1 (en) An arrangement in apparatus for the combustion of waste gases
DE3345946C2 (en)
CN102203222B (en) Highly efficient and clean gasification apparatus for carbonaceous dry powder and method thereof
US8684070B2 (en) Compact radial platen arrangement for radiant syngas cooler
US4746337A (en) Cyclone separator having water-steam cooled walls
DE112009000287T5 (en) Apparatus for cooling and washing a flow of synthesis gas and method of assembling
JP2862722B2 (en) Furnace roof cooling system with removable delta
CA2387262C (en) Cfb impact type particle collection elements attached to cooled supports
US4615715A (en) Water-cooled cyclone separator
EP0042028B1 (en) Apparatus for heat exchange between recycling gas leaving an ammonia synthesis reactor and cooling water
US5592521A (en) Process and device for recombining and/or igniting hydrogen contained in an H2 -air-steam mixture, preferably for nuclear power stations
EP0024281A1 (en) Apparatus for the gasification of pulverized coal
US4272255A (en) Apparatus for gasification of carbonaceous solids
KR101160505B1 (en) Apparatus for gasifying a fuel
NL8103165A (en) Heat exchanger with a fluidized bed.
DE10103940B4 (en) Device for feeding gas into a boiler
US5233943A (en) Synthetic gas radiant cooler with internal quenching and purging facilities
EP0805937B1 (en) Improved partial oxidation process burner with recessed tip and gas blasting
US20060076272A1 (en) Method for gasification of a solid carbonaceous feed and a reactor for use in such a method
CZ2003387A3 (en) Tuyere for introduction of gas
PL136094B1 (en) Apparatus for and method of periodically cleaning heat exchanger tubes
DE19747324A1 (en) High pressure gasification reactor generating fuel-, synthesis- and reduction gases from renewable and fossil fuels, biomasses, wastes and sludge

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19930122

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940218

REF Corresponds to:

Ref document number: 59200074

Country of ref document: DE

Date of ref document: 19940331

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Payment date: 20030415

Year of fee payment: 12

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

Ref country code: FR

Payment date: 20030418

Year of fee payment: 12

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

Ref country code: GB

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

Effective date: 20040429

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040429

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: 20041231

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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: 20050429

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

Ref country code: DE

Payment date: 20110610

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59200074

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59200074

Country of ref document: DE

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20120501