FI954374A - Förfarande och anordning för cirkulering av fast material i en flytbäddsreaktor - Google Patents
Förfarande och anordning för cirkulering av fast material i en flytbäddsreaktor Download PDFInfo
- Publication number
- FI954374A FI954374A FI954374A FI954374A FI954374A FI 954374 A FI954374 A FI 954374A FI 954374 A FI954374 A FI 954374A FI 954374 A FI954374 A FI 954374A FI 954374 A FI954374 A FI 954374A
- Authority
- FI
- Finland
- Prior art keywords
- fluidized bed
- bed reactor
- particle
- chamber
- openings
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1836—Heating and cooling the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
- B01J8/384—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only
- B01J8/388—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only externally, i.e. the particles leaving the vessel and subsequently re-entering it
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
- F22B31/0092—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed with a fluidized heat exchange bed and a fluidized combustion bed separated by a partition, the bed particles circulating around or through that partition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
- F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00026—Controlling or regulating the heat exchange system
- B01J2208/00035—Controlling or regulating the heat exchange system involving measured parameters
- B01J2208/00088—Flow rate measurement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
- B01J2208/00132—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00212—Plates; Jackets; Cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00477—Controlling the temperature by thermal insulation means
- B01J2208/00495—Controlling the temperature by thermal insulation means using insulating materials or refractories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
- F23C2206/101—Entrained or fast fluidised bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
- F23C2206/103—Cooling recirculating particles
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI954374A FI119916B (sv) | 1993-04-05 | 1995-09-18 | Förfarande och anordning för cirkulation av fast material i en virvelbäddsreaktor |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4157193 | 1993-04-05 | ||
US08/041,571 US5332553A (en) | 1993-04-05 | 1993-04-05 | Method for circulating solid material in a fluidized bed reactor |
FI9400113 | 1994-03-28 | ||
PCT/FI1994/000113 WO1994022570A1 (en) | 1993-04-05 | 1994-03-28 | Method and apparatus for circulating solid material in a fluidized bed reactor |
FI954374 | 1995-09-18 | ||
FI954374A FI119916B (sv) | 1993-04-05 | 1995-09-18 | Förfarande och anordning för cirkulation av fast material i en virvelbäddsreaktor |
Publications (3)
Publication Number | Publication Date |
---|---|
FI954374A0 FI954374A0 (sv) | 1995-09-18 |
FI954374A true FI954374A (sv) | 1995-12-01 |
FI119916B FI119916B (sv) | 2009-05-15 |
Family
ID=21917233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI954374A FI119916B (sv) | 1993-04-05 | 1995-09-18 | Förfarande och anordning för cirkulation av fast material i en virvelbäddsreaktor |
Country Status (18)
Country | Link |
---|---|
US (2) | US5332553A (sv) |
EP (1) | EP0692998B1 (sv) |
JP (1) | JP3326179B2 (sv) |
KR (1) | KR100321603B1 (sv) |
CN (1) | CN1105597C (sv) |
AT (1) | ATE155710T1 (sv) |
CA (1) | CA2158273C (sv) |
DE (1) | DE69404453T2 (sv) |
DK (1) | DK0692998T3 (sv) |
EE (1) | EE03189B1 (sv) |
ES (1) | ES2107199T3 (sv) |
FI (1) | FI119916B (sv) |
IL (1) | IL109065A (sv) |
PL (1) | PL176229B1 (sv) |
RU (1) | RU2114690C1 (sv) |
TW (1) | TW243492B (sv) |
UA (1) | UA27070C2 (sv) |
WO (1) | WO1994022570A1 (sv) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2507445C1 (ru) * | 2010-02-26 | 2014-02-20 | Фостер Вилер Энергия Ой | Реакторная установка с псевдоожиженным слоем |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2690512B1 (fr) * | 1992-04-27 | 1994-09-09 | Stein Industrie | Réacteur à lit fluidisé circulant comportant des échangeurs extérieurs alimentés par la recirculation interne. |
FI93701C (sv) * | 1993-06-11 | 1995-05-26 | Ahlstroem Oy | Förfarande och anordning för behandling av heta gaser |
FI93274C (sv) * | 1993-06-23 | 1995-03-10 | Ahlstroem Oy | Förfarande och anordning för behandling eller utnyttjande av en het gasström |
US5533471A (en) * | 1994-08-17 | 1996-07-09 | A. Ahlstrom Corporation | fluidized bed reactor and method of operation thereof |
US5526775A (en) † | 1994-10-12 | 1996-06-18 | Foster Wheeler Energia Oy | Circulating fluidized bed reactor and method of operating the same |
DE4439565C2 (de) * | 1994-11-05 | 1998-10-08 | Rethmann Lippewerk Recycling G | Ventilvorrichtung für die dosierte Einleitung von Feinstasche in einen Wirbelschichtreaktor |
US5522160A (en) * | 1995-01-05 | 1996-06-04 | Foster Wheeler Energia Oy | Fluidized bed assembly with flow equalization |
US5567228A (en) * | 1995-07-03 | 1996-10-22 | Foster Wheeler Energy Corporation | System for cooling and cleaning synthesized gas using ahot gravel bed |
US6139805A (en) * | 1995-11-15 | 2000-10-31 | Ebara Corporation | Fluidized-bed reactor |
US6237541B1 (en) * | 2000-04-19 | 2001-05-29 | Kvaerner Pulping Oy | Process chamber in connection with a circulating fluidized bed reactor |
US20040100902A1 (en) * | 2002-11-27 | 2004-05-27 | Pannalal Vimalchand | Gas treatment apparatus and method |
DE10260738A1 (de) * | 2002-12-23 | 2004-07-15 | Outokumpu Oyj | Verfahren und Anlage zur Förderung von feinkörnigen Feststoffen |
DE10260741A1 (de) * | 2002-12-23 | 2004-07-08 | Outokumpu Oyj | Verfahren und Anlage zur Wärmebehandlung von feinkörnigen Feststoffen |
EP1491253A1 (en) * | 2003-06-26 | 2004-12-29 | Urea Casale S.A. | Fluid bed granulation process and apparatus |
FR2866695B1 (fr) * | 2004-02-25 | 2006-05-05 | Alstom Technology Ltd | Chaudiere oxy-combustion avec production d'oxygene |
US7464669B2 (en) * | 2006-04-19 | 2008-12-16 | Babcock & Wilcox Power Generation Group, Inc. | Integrated fluidized bed ash cooler |
US8129482B2 (en) * | 2008-02-27 | 2012-03-06 | Westlake Longview Corporation | Method of preventing or reducing polymer agglomeration on grid in fluidized-bed reactors |
US8124697B2 (en) * | 2008-02-27 | 2012-02-28 | Westlake Longview Corporation | Method of preventing or reducing agglomeration on grid in fluidized-bed vessel |
US9163830B2 (en) * | 2009-03-31 | 2015-10-20 | Alstom Technology Ltd | Sealpot and method for controlling a solids flow rate therethrough |
US8434430B2 (en) * | 2009-09-30 | 2013-05-07 | Babcock & Wilcox Power Generation Group, Inc. | In-bed solids control valve |
CN102840577B (zh) * | 2011-06-23 | 2015-03-25 | 中国科学院工程热物理研究所 | 带紧凑式外置双流化床换热器的循环流化床锅炉 |
IN2015DN00277A (sv) * | 2012-08-27 | 2015-06-12 | Southern Co | |
US20170356642A1 (en) * | 2016-06-13 | 2017-12-14 | The Babcock & Wilcox Company | Circulating fluidized bed boiler with bottom-supported in-bed heat exchanger |
CN106838889B (zh) * | 2017-02-09 | 2019-09-27 | 重庆大学 | 一种带内循环灰换热器的循环流化床锅炉 |
FI129147B (sv) * | 2017-12-19 | 2021-08-13 | Valmet Technologies Oy | Virvelbäddspanna med en värmeväxlare för ett gaslås |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1397800A (en) * | 1972-09-01 | 1975-06-18 | Coal Industry Patents Ltd | Fluidised bed combusters |
US3893426A (en) * | 1974-03-25 | 1975-07-08 | Foster Wheeler Corp | Heat exchanger utilizing adjoining fluidized beds |
US4333909A (en) * | 1980-05-09 | 1982-06-08 | Foster Wheeler Energy Corporation | Fluidized bed boiler utilizing precalcination of acceptors |
DE3688007D1 (de) * | 1985-06-12 | 1993-04-22 | Metallgesellschaft Ag | Verbrennungsvorrichtung mit zirkulierender wirbelschicht. |
US4690802A (en) * | 1985-12-31 | 1987-09-01 | Exxon Research And Engineering Company | Apparatus for controlling the temperature in catalyst regeneration |
CA1285375C (en) * | 1986-01-21 | 1991-07-02 | Takahiro Ohshita | Thermal reactor |
SE457661B (sv) * | 1986-06-12 | 1989-01-16 | Lars Axel Chambert | Saett och reaktor foer foerbraenning i fluidiserad baedd |
US4896717A (en) * | 1987-09-24 | 1990-01-30 | Campbell Jr Walter R | Fluidized bed reactor having an integrated recycle heat exchanger |
US4915061A (en) * | 1988-06-06 | 1990-04-10 | Foster Wheeler Energy Corporation | Fluidized bed reactor utilizing channel separators |
FI84202C (sv) * | 1989-02-08 | 1991-10-25 | Ahlstroem Oy | Reaktorkammare i en reaktor med fluidiserad bädd |
SU1666863A1 (ru) * | 1989-05-23 | 1991-07-30 | А.Г.Робул и А.И.Легенченко | Топка с кип щим слоем |
US4951612A (en) * | 1989-05-25 | 1990-08-28 | Foster Wheeler Energy Corporation | Circulating fluidized bed reactor utilizing integral curved arm separators |
US4947804A (en) * | 1989-07-28 | 1990-08-14 | Foster Wheeler Energy Corporation | Fluidized bed steam generation system and method having an external heat exchanger |
US5005528A (en) * | 1990-04-12 | 1991-04-09 | Tampella Keeler Inc. | Bubbling fluid bed boiler with recycle |
US5054436A (en) * | 1990-06-12 | 1991-10-08 | Foster Wheeler Energy Corporation | Fluidized bed combustion system and process for operating same |
US5069171A (en) * | 1990-06-12 | 1991-12-03 | Foster Wheeler Agency Corporation | Fluidized bed combustion system and method having an integral recycle heat exchanger with a transverse outlet chamber |
US5341766A (en) * | 1992-11-10 | 1994-08-30 | A. Ahlstrom Corporation | Method and apparatus for operating a circulating fluidized bed system |
-
1993
- 1993-04-05 US US08/041,571 patent/US5332553A/en not_active Expired - Lifetime
-
1994
- 1994-03-21 IL IL10906594A patent/IL109065A/en active IP Right Grant
- 1994-03-28 PL PL94310976A patent/PL176229B1/pl not_active IP Right Cessation
- 1994-03-28 EP EP94910431A patent/EP0692998B1/en not_active Expired - Lifetime
- 1994-03-28 ES ES94910431T patent/ES2107199T3/es not_active Expired - Lifetime
- 1994-03-28 AT AT94910431T patent/ATE155710T1/de not_active IP Right Cessation
- 1994-03-28 RU RU95117992A patent/RU2114690C1/ru not_active IP Right Cessation
- 1994-03-28 KR KR1019950704215A patent/KR100321603B1/ko not_active IP Right Cessation
- 1994-03-28 UA UA95104402A patent/UA27070C2/uk unknown
- 1994-03-28 DE DE69404453T patent/DE69404453T2/de not_active Expired - Lifetime
- 1994-03-28 CN CN94191693A patent/CN1105597C/zh not_active Expired - Fee Related
- 1994-03-28 JP JP52170494A patent/JP3326179B2/ja not_active Expired - Fee Related
- 1994-03-28 DK DK94910431.9T patent/DK0692998T3/da active
- 1994-03-28 CA CA002158273A patent/CA2158273C/en not_active Expired - Fee Related
- 1994-03-28 WO PCT/FI1994/000113 patent/WO1994022570A1/en active IP Right Grant
- 1994-04-05 US US08/222,862 patent/US5476639A/en not_active Expired - Lifetime
- 1994-04-12 TW TW083103245A patent/TW243492B/zh active
- 1994-08-10 EE EE9400030A patent/EE03189B1/xx not_active IP Right Cessation
-
1995
- 1995-09-18 FI FI954374A patent/FI119916B/sv not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2507445C1 (ru) * | 2010-02-26 | 2014-02-20 | Фостер Вилер Энергия Ой | Реакторная установка с псевдоожиженным слоем |
US9091481B2 (en) | 2010-02-26 | 2015-07-28 | Amec Foster Wheeler Energia Oy | Fluidized bed reactor arrangement |
Also Published As
Publication number | Publication date |
---|---|
EP0692998B1 (en) | 1997-07-23 |
US5332553A (en) | 1994-07-26 |
KR960701691A (ko) | 1996-03-08 |
ATE155710T1 (de) | 1997-08-15 |
WO1994022570A1 (en) | 1994-10-13 |
PL176229B1 (pl) | 1999-05-31 |
US5476639A (en) | 1995-12-19 |
PL310976A1 (en) | 1996-01-22 |
CA2158273C (en) | 2002-07-30 |
DK0692998T3 (da) | 1998-03-02 |
FI119916B (sv) | 2009-05-15 |
JP3326179B2 (ja) | 2002-09-17 |
DE69404453T2 (de) | 1997-12-18 |
CN1105597C (zh) | 2003-04-16 |
KR100321603B1 (ko) | 2002-06-20 |
DE69404453D1 (de) | 1997-08-28 |
EP0692998A1 (en) | 1996-01-24 |
EE03189B1 (et) | 1999-06-15 |
RU2114690C1 (ru) | 1998-07-10 |
CA2158273A1 (en) | 1994-10-13 |
JPH08508203A (ja) | 1996-09-03 |
IL109065A0 (en) | 1994-06-24 |
ES2107199T3 (es) | 1997-11-16 |
TW243492B (sv) | 1995-03-21 |
IL109065A (en) | 1999-06-20 |
CN1120818A (zh) | 1996-04-17 |
UA27070C2 (uk) | 2000-02-28 |
FI954374A0 (sv) | 1995-09-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GB | Transfer or assigment of application |
Owner name: FOSTER WHEELER ENERGIA OY |
|
FG | Patent granted |
Ref document number: 119916 Country of ref document: FI |
|
MM | Patent lapsed |