EP0937944A3 - Vorrichtung und Verfahren zur Verbrennung vanadiumhaltiger Brennstoffe - Google Patents

Vorrichtung und Verfahren zur Verbrennung vanadiumhaltiger Brennstoffe Download PDF

Info

Publication number
EP0937944A3
EP0937944A3 EP99103123A EP99103123A EP0937944A3 EP 0937944 A3 EP0937944 A3 EP 0937944A3 EP 99103123 A EP99103123 A EP 99103123A EP 99103123 A EP99103123 A EP 99103123A EP 0937944 A3 EP0937944 A3 EP 0937944A3
Authority
EP
European Patent Office
Prior art keywords
combustion
dust
burner
combustion method
fuel
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
EP99103123A
Other languages
English (en)
French (fr)
Other versions
EP0937944A2 (de
EP0937944B1 (de
Inventor
Holger Dr.-Ing. Wulfert
Andre Michael Dipl.-Ing. Bätz
Klaus Prof.Dr.-Ing. Görner
Friedrich Schmaus
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.)
Texaco Development Corp
Original Assignee
Walter Brinkmann GmbH
Loesche 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 Walter Brinkmann GmbH, Loesche GmbH filed Critical Walter Brinkmann GmbH
Publication of EP0937944A2 publication Critical patent/EP0937944A2/de
Publication of EP0937944A3 publication Critical patent/EP0937944A3/de
Application granted granted Critical
Publication of EP0937944B1 publication Critical patent/EP0937944B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C3/00Combustion apparatus characterised by the shape of the combustion chamber
    • F23C3/006Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion
    • F23C3/008Combustion apparatus characterised by the shape of the combustion chamber the chamber being arranged for cyclonic combustion for pulverulent fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00Combustion apparatus characterised by arrangements for air supply
    • F23C7/02Disposition of air supply not passing through burner
    • F23C7/06Disposition of air supply not passing through burner for heating the incoming air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/08Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00Casings; Linings; Walls
    • F23M5/08Cooling thereof; Tube walls

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion Of Fluid Fuel (AREA)

Abstract

Bei der erfindungsgemäßen Vorrichtung und dem Verfahren zur Verbrennung vanadiumhaltiger Brennstoffe wird die außerordentlich hohe Reaktivität der vanadiumhaltigen Brennstoffe zur Verbrennung in einer Staubfeuerung genutzt.
Zur Vermeidung der nachteiligen Schlackenanbackungen in der Brennkammer (4) und insbesondere im Bereich von Zuführdüsen, z.B. für das Brennstaub-Luftgemisch und für Verbrennungsluft, wird in einer Staubfeuerung ein Kopfbrenner (2) in einer Decke (14) eines Brennraumes (9) angeordnet und wenigstens eine Staubdüse (5) zur Zuführung des Brennstaub-Luftgemisches derart angeordnet, daß ein Rückströmen flüssiger Schlackepartikel zum Kopfbrenner verhindert wird.
EP99103123A 1998-02-18 1999-02-17 Vorrichtung und Verfahren zur Verbrennung vanadiumhaltiger Brennstoffe Expired - Lifetime EP0937944B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19806823 1998-02-18
DE19806823A DE19806823C2 (de) 1998-02-18 1998-02-18 Vorrichtung und Verfahren zur Verbrennung vanadiumhaltiger Brennstoffe

Publications (3)

Publication Number Publication Date
EP0937944A2 EP0937944A2 (de) 1999-08-25
EP0937944A3 true EP0937944A3 (de) 2000-01-05
EP0937944B1 EP0937944B1 (de) 2003-05-28

Family

ID=7858202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99103123A Expired - Lifetime EP0937944B1 (de) 1998-02-18 1999-02-17 Vorrichtung und Verfahren zur Verbrennung vanadiumhaltiger Brennstoffe

Country Status (5)

Country Link
US (2) US6148745A (de)
EP (1) EP0937944B1 (de)
JP (1) JP3477102B2 (de)
DE (2) DE19806823C2 (de)
ES (1) ES2200418T3 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305968B3 (de) * 2003-02-12 2004-07-01 Kümmel, Joachim, Dipl.-Ing. Verfahren zur Verbrennung von Asche und Schlacke bildenden Brennstoffen und Rückständen und Vorrichtung zur Durchführung des Verfahrens
US6968791B2 (en) * 2003-08-21 2005-11-29 Air Products And Chemicals, Inc. Oxygen-enriched co-firing of secondary fuels in slagging cyclone combustors
FR2869673B1 (fr) * 2004-04-30 2010-11-19 Alstom Technology Ltd Procede pour la combustion de residus de raffinage
DE102007010776B4 (de) * 2007-03-06 2008-11-13 Gfe Metalle Und Materialien Gmbh Verfahren zur Herstellung eines schwermetallangereicherten, kohlenstoffarmen Konzentrats aus kohlenstoffreichen, schwermetallhaltigen Rückständen insbesondere der Erdölverarbeitung
DE102007021799A1 (de) * 2007-05-07 2008-11-13 Rheinisch-Westfälisch-Technische Hochschule Aachen Verfahren zum Verbrennen von Brennmaterial
EP2180252B1 (de) * 2008-10-24 2016-03-23 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Verfahren zum Einspritzen von Ballast in einen Sauerstoffverbrennungsboiler
US20100154430A1 (en) * 2008-12-22 2010-06-24 Krishan Lal Luthra System and method for operating a gas turbine using vanadium-containing fuels
CN101825276B (zh) * 2010-04-26 2011-06-29 中国科学院广州能源研究所 一种节能环保型液排渣式燃煤供热系统
KR101405470B1 (ko) 2013-01-02 2014-06-11 주식회사 한별 버너
US11759834B2 (en) * 2017-11-08 2023-09-19 Plasma Tech Holdings, Llc Efficient fiber manufacturing
RU204537U1 (ru) * 2021-02-12 2021-05-31 Александр Михайлович Гилявский Горелочное устройство теплогенератора

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2275394A (en) * 1938-04-29 1942-03-03 Babcock & Wilcox Co Pulverized fuel burning apparatus
DE1776082A1 (de) * 1968-09-18 1971-06-09 Babcock & Wilcox Ag Einrichtung zur Verfeuerung fluessiger Abfallprodukte
EP0006423A2 (de) * 1978-04-18 1980-01-09 Ruhrkohle Aktiengesellschaft Vorrichtung zur Kühlung eines Kohlebrenners
DE3325065A1 (de) * 1983-07-12 1985-01-24 L. & C. Steinmüller GmbH, 5270 Gummersbach Verfahren zur verbrennung von petrolkoksstaub
EP0347126A2 (de) * 1988-06-09 1989-12-20 JGC Corporation Zyklonofen
GB2233668A (en) * 1989-06-13 1991-01-16 Babcock Energy Ltd Recovering heavy metal compounds
EP0674134A1 (de) * 1994-03-23 1995-09-27 AWG Abfallwirtschaftsgesellschaft mit beschränkter Haftung Wuppertal Vorrichtung zum Verbrennen von staubförmigen Materialien
JPH09243027A (ja) * 1996-03-12 1997-09-16 Mitsui Eng & Shipbuild Co Ltd 燃焼バーナ及び燃焼方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855873A (en) * 1955-06-23 1958-10-14 Swietochowski Olivier Von Cyclone furnace
US4144019A (en) * 1977-03-24 1979-03-13 Combustion Equipment Associates, Inc. Vortex type burner
US4145979A (en) * 1978-01-23 1979-03-27 Envirotech Corporation Afterburner assembly
US4408548A (en) * 1979-04-17 1983-10-11 Jorg Schmalfeld Pulverized coal combustion method and apparatus
US4550563A (en) * 1979-11-23 1985-11-05 Marchand William C Gas turbine combustion system utilizing renewable and non-critical solid fuels with residue remover to minimize environmental pollution
SE8400738L (sv) * 1984-02-13 1985-08-14 Petrokraft Ing Ab Brennare for forbrenning av pulverformigt brensle
FR2567624B1 (fr) * 1984-07-10 1986-11-28 Francais Ciments Generateur d'air chaud a temperature elevee pour installation de sechage par exemple de briquetterie, de cimenteries ou de produits agricoles, de chauffage de locaux
FR2603905A1 (fr) * 1986-09-12 1988-03-18 Elf France Procede de protection des surfaces metalliques contre la corrosion vanadosodique
US5000098A (en) * 1989-02-16 1991-03-19 Jgc Corporation Combustion apparatus
ES2059906T3 (es) * 1989-07-19 1994-11-16 Siemens Ag Camara de combustion y procedimiento para quemar sustancias combustibles al menos parcialmente.
DE4114171A1 (de) 1991-04-30 1992-11-05 Loesche Gmbh Spiralstromfeuerung
JP2697454B2 (ja) * 1992-01-24 1998-01-14 住友金属鉱山株式会社 粉状固体燃料用ガス化バーナー及びその使用方法
US5694869A (en) * 1994-12-29 1997-12-09 Duquesne Light Company And Energy Systems Associates Reducing NOX emissions from a roof-fired furnace using separated parallel flow overfire air
US6058855A (en) * 1998-07-20 2000-05-09 D. B. Riley, Inc. Low emission U-fired boiler combustion system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2275394A (en) * 1938-04-29 1942-03-03 Babcock & Wilcox Co Pulverized fuel burning apparatus
DE1776082A1 (de) * 1968-09-18 1971-06-09 Babcock & Wilcox Ag Einrichtung zur Verfeuerung fluessiger Abfallprodukte
EP0006423A2 (de) * 1978-04-18 1980-01-09 Ruhrkohle Aktiengesellschaft Vorrichtung zur Kühlung eines Kohlebrenners
DE3325065A1 (de) * 1983-07-12 1985-01-24 L. & C. Steinmüller GmbH, 5270 Gummersbach Verfahren zur verbrennung von petrolkoksstaub
EP0347126A2 (de) * 1988-06-09 1989-12-20 JGC Corporation Zyklonofen
GB2233668A (en) * 1989-06-13 1991-01-16 Babcock Energy Ltd Recovering heavy metal compounds
EP0674134A1 (de) * 1994-03-23 1995-09-27 AWG Abfallwirtschaftsgesellschaft mit beschränkter Haftung Wuppertal Vorrichtung zum Verbrennen von staubförmigen Materialien
JPH09243027A (ja) * 1996-03-12 1997-09-16 Mitsui Eng & Shipbuild Co Ltd 燃焼バーナ及び燃焼方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"ROTATIONSFEUERUNGSYSTEMEN EINSATZBEREIT FÜR JEDEN BRENNSTOFF", CHEMIETECHNIK,DE,HUTHIG, HEIDELBERG, vol. 24, no. 6, pages 18, XP000517020, ISSN: 0340-9961 *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) *

Also Published As

Publication number Publication date
US6422160B1 (en) 2002-07-23
ES2200418T3 (es) 2004-03-01
US6148745A (en) 2000-11-21
EP0937944A2 (de) 1999-08-25
EP0937944B1 (de) 2003-05-28
DE19806823A1 (de) 1999-09-09
DE19806823C2 (de) 1999-12-09
JP3477102B2 (ja) 2003-12-10
JPH11281008A (ja) 1999-10-15
DE59905690D1 (de) 2003-07-03

Similar Documents

Publication Publication Date Title
EP0937944A3 (de) Vorrichtung und Verfahren zur Verbrennung vanadiumhaltiger Brennstoffe
ATE199776T1 (de) Zerstörung giftiger substanzen durch verbrennung
EP0769655A3 (de) Airblast-Zerstäuberdüse
DE3722446C2 (de)
EP1213536A3 (de) Vormischbrenneranordnung mit katalytischem Pilotbrenner
DE2900578C2 (de)
DE60123194T2 (de) Verfahren zur Verbrennung von kohlwasserstoffreichen Brennstoffen in einer Brennkammer mit verminderter Russbildung
DE3777053D1 (de) Verfahren zum betreiben von vormischbrennern und vorrichtung zum durchfuehren dieses verfahrens.
EP0898118A3 (de) Verfahren und Vorrichtung zum Regeln eines Brenners, insbesondere eines vollvormischenden Gasbrenners
DE3444469C1 (de) Verfahren und Rundbrenner zur Einduesung von waessrigen Additivsuspensionen im Zentrum eines Rundbrenners
WO1999019670A3 (en) FUEL NOZZLE ASSEMBLY FOR A LOW NOx COMBUSTOR
ATE92789T1 (de) Vorrichtung und verfahren zur atomisierung von fluessigkeiten, insbesondere geschmolzenen metallen.
EP0159492A3 (de) Verfahren zur Verminderung der NOx-Bildung in mit Kohlenstaub betriebenen Feuerungsanlagen, insbesondere Schmelzkammerfeuerungen, und Feuerungsanlage zur Durchführung des Verfahrens
EP0863366A3 (de) Gasbrenner
ATE153320T1 (de) Brenner zur beschichtung von werkstücken
ATE93750T1 (de) Vorrichtung und verfahren zur mikroatomisierung von fluessigkeiten, insbesondere schmelzen.
EP0959300A3 (de) Verfahren und Vorrichtung zum Betreiben eines atmosphärischen, insbesondere vollvormischenden Gasbrenners
EP0072950A3 (de) Verfahren zur Verdampfung und Verbrennung flüssiger Brennstoffe sowie Brenner hierzu
EP0967436A3 (de) Kaskadenbrenner
DE4409057A1 (de) Verfahren zum Betrieb einer druckaufgeladenen zirkulierenden mit Braunkohle betriebenen Wirbelschichtfeuerung für ein Kombikraftwerk
EP1564486A3 (de) Verfahren und Vorrichtung zur Zerstäubung flüssigen Brennstoffs für eine Feuerungsanlage
WO2011064219A1 (de) Verfahren und vorrichtung zur verbrennung von reststoffen
DE2915543A1 (de) Verfahren zur erhoehung des verbrennungseffektes bei einem oelbrenner und oelbrenner zur ausfuehrung desselben
DE407758C (de) Feuerung mit Oberflaechenverbrennung
DE306411C (de)

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: A2

Designated state(s): BE CH DE ES FR GB IT LI NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000616

AKX Designation fees paid

Free format text: BE CH DE ES FR GB IT LI NL

17Q First examination report despatched

Effective date: 20010220

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LOESCHE GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NORSK HYDRO ASA

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

Designated state(s): BE CH DE ES FR GB IT LI NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59905690

Country of ref document: DE

Date of ref document: 20030703

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: RITSCHER & PARTNER AG PATENTANWAELTE

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: TEXACO DEVELOPMENT CORPORATION

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

Effective date: 20030728

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: TEXACO DEVELOPMENT CORPORATION

NLS Nl: assignments of ep-patents

Owner name: TEXACO DEVELOPMENT CORPORATION

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2200418

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

Effective date: 20040302

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: TEXACO DEVELOPMENT CORPORATION

Free format text: TEXACO DEVELOPMENT CORPORATION#1111 BAGBY STREET#HOUSTON, TX 77002-2543 (US) -TRANSFER TO- TEXACO DEVELOPMENT CORPORATION#1111 BAGBY STREET#HOUSTON, TX 77002-2543 (US)

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

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

Ref country code: ES

Payment date: 20160226

Year of fee payment: 18

Ref country code: CH

Payment date: 20160226

Year of fee payment: 18

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

Ref country code: BE

Payment date: 20160226

Year of fee payment: 18

Ref country code: FR

Payment date: 20160217

Year of fee payment: 18

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: GARTENSTRASSE 28 A, 5400 BADEN (CH)

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

Ref country code: BE

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

Effective date: 20170228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: LI

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

Effective date: 20170228

Ref country code: CH

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

Effective date: 20170228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20171031

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: 20170228

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170228

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

Ref country code: NL

Payment date: 20180226

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20180227

Year of fee payment: 20

Ref country code: DE

Payment date: 20180227

Year of fee payment: 20

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

Ref country code: IT

Payment date: 20180222

Year of fee payment: 20

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180629

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: 20170218

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20180709 AND 20180711

REG Reference to a national code

Ref country code: NL

Ref legal event code: PD

Owner name: GE ENERGY (USA), LLC; US

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: TEXACO DEVELOPMENT CORPORATION

Effective date: 20180809

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59905690

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20190216

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20190216

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 EXPIRATION OF PROTECTION

Effective date: 20190216

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20200123 AND 20200129