EP0898688A1 - PROCEDE POUR REDUIRE AU MINIMUM LA TENEUR EN NOx DES GAZ DE FUMEE - Google Patents

PROCEDE POUR REDUIRE AU MINIMUM LA TENEUR EN NOx DES GAZ DE FUMEE

Info

Publication number
EP0898688A1
EP0898688A1 EP97923043A EP97923043A EP0898688A1 EP 0898688 A1 EP0898688 A1 EP 0898688A1 EP 97923043 A EP97923043 A EP 97923043A EP 97923043 A EP97923043 A EP 97923043A EP 0898688 A1 EP0898688 A1 EP 0898688A1
Authority
EP
European Patent Office
Prior art keywords
combustion
combustion zone
free space
furnace
flue gases
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
EP97923043A
Other languages
German (de)
English (en)
Other versions
EP0898688B1 (fr
Inventor
Frank Stamer
Paul Ludwig
Peter Theis
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.)
Infraserv GmbH and Co Hoechst KG
Original Assignee
Hoechst Research and Technology Deutschland GmbH and Co KG
Infraserv GmbH and Co Hoechst KG
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 Hoechst Research and Technology Deutschland GmbH and Co KG, Infraserv GmbH and Co Hoechst KG filed Critical Hoechst Research and Technology Deutschland GmbH and Co KG
Publication of EP0898688A1 publication Critical patent/EP0898688A1/fr
Application granted granted Critical
Publication of EP0898688B1 publication Critical patent/EP0898688B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
    • F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
    • F23G5/165—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber arranged at a different level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/12—Sludge, slurries or mixtures of liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07002—Injecting inert gas, other than steam or evaporated water, into the combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07009—Injection of steam into the combustion chamber

Definitions

  • the invention relates to a method for operating incinerators for combustion goods such as sewage sludge, garbage or coal, in which the combustion material is burned in a combustion zone of the furnace and the resulting flue gases are extracted via a free space which is located above the combustion zone.
  • a free space is a room with greatly reduced combustion. It serves to separate flue gases and dust as well as a small amount of post-combustion of CO and organic carbon and is also known as a calming room.
  • a method of the type mentioned at the outset is known, for example, from DE 3703568 A1.
  • a method for operating fluidized bed furnaces in which, for example, sewage sludge is burned in a fluidized bed which is located in the combustion zone of the fluidized bed furnace.
  • the fluidized bed is produced in this process by using a mixture of combustion air and flue gases as the fluidized air, the flue gases being admixed to the combustion air in a temperature and quantity-controlled manner.
  • the NO x concentration in the flue gas can be reduced. Nevertheless, a residual amount of NO x remains in the flue gas and therefore it is desirable in the context of environmental protection, especially air pollution control, to further reduce the NO x emissions.
  • the invention was therefore based on the object of further reducing the NO x content in flue gases.
  • the present object is therefore achieved by a method of the type mentioned at the outset, which is characterized in that the flue gases are set in a turbulent movement in the free space without the turbulence in the combustion zone being significantly increased thereby.
  • the invention thus relates to a method for operating combustion furnaces for combustion goods such as sewage sludge, garbage or coal, in which the combustion material is burned in a combustion zone of the furnace and the resulting flue gases are drawn off via a free space located above the combustion zone characterized in that the flue gases are set in a turbulent movement in the free space, without thereby significantly increasing the turbulence in the combustion zone.
  • the combustion itself can take place in one or two stages according to DE 3703568.
  • Fluidized bed furnaces which have a fluidized bed in the firing zone, deck furnaces or rust furnaces can be used as combustion furnaces.
  • the process is preferably suitable for the incineration of sewage sludge, since due to its protein content it can be expected that a lot of NO ⁇ will be burned.
  • the turbulent movement of the flue gases is advantageously generated by injecting gas, preferably inert gas or noble gas, particularly preferably by injecting water vapor or nitrogen.
  • Liquids or solids are also suitable for injection.
  • the injection takes place advantageously in the free space above the firing zone, in such a way that the turbulence in the combustion zone or fluidized bed is not significantly, preferably not increased.
  • the method is particularly suitable for incinerators with combustion zone areas greater than 5, preferably 40, particularly preferably 100 and very particularly preferably 200 m 2 .
  • the invention also relates to an incinerator which has a combustion zone and a free space above the combustion zone, characterized in that the incinerator has means by which the flue gases in the free space can be set in turbulent motion without thereby significantly increasing the turbulence in the combustion zone becomes.
  • This can be a fluidized bed furnace which has nozzles and / or flow disrupters in the free space above the fluidized bed. Baffles, for example, are suitable as flow disrupters.
  • pipes that are installed for steam generation are also possible.
  • NO ⁇ minimization through comparatively simple measures.
  • secondary measures such as the SNCR or SCR process (Selective (Non-) Catalytic Reduction) are not required.
  • the CO produced during combustion may act as a reducing agent, which is why it seems favorable not to reduce the CO formation in the fluidized bed.
  • a reducing agent is also added.
  • the pure water vapor is injected to increase the turbulence of the flue gases and this also improves the cross-mixing of the flue gases.
  • the method according to the invention is also suitable for combustion furnaces with a low heat output down to 2000, even 1000 and even 500 kJ / (kg of fuel).
  • the nitrogen contained in the sewage sludge is essentially converted to NH 3 , N 2 and to a small extent to fuel NO x in the fluidized bed.
  • the N0 2 portion of total nitrogen is approximately 5%.
  • Increasing the concentration of a reducing agent in the flue gas e.g. increasing the CO concentration
  • increasing the residence time Improve turbulence and response speed
  • Industrial sewage sludge 3 is burned in a two-stage fluidized bed furnace 1 with a combustion zone 2, in which the fluidized bed 11 is located.
  • the combustion zone 2 with the fluidized bed 11 is located above an inflow floor 9 through which combustion air 7 is introduced into the fluidized bed 11 via an air distributor device (not shown).
  • the sewage sludge 3 is burned in the fluidized bed 11 to reduce the fuel NO x formation at 0 2 contents in the combustion air 7 (primary air) of approximately 1% by volume.
  • the resulting flue gases 1 2 enter a free space 4 above the fluidized bed and are withdrawn via this free space 4 and fed to a second combustion stage.
  • the after-reaction zone 6 the CO formed by the reducing combustion conditions is afterburned by feeding in secondary air 8 to C0 2 (0 2 contents in the after-reaction zone> 6% by volume).
  • the injection of Water vapor 10 takes place via one or more nozzles 5 directly into the free space 4.
  • the turbulence of the fluidized bed 11 is not or only slightly influenced by this injection.
  • the sewage sludge 3 is preferably added from above, from a height which ensures that the sewage sludge 3 is still dried while falling through the hot flue gases 4 into the fluidized bed 11.
  • Sewage sludge feed rate approx. 10 t / h (40% dry substance)
  • Flue gas quantity approx. 45000 Nm 3 / h (wet), approx. 35000 Nm 3 / h (dry)
  • Fluid bed temperature 750 - 850 ° C
  • NO x concentration in free space approx. 3000 mg / Nm 3
  • Fluid bed furnace height 10.6 m

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Treating Waste Gases (AREA)
  • Incineration Of Waste (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner des incinérateurs (1) pour boues de curage, ordures ou charbon. Dans ce procédé, le produit à incinérer est incinéré dans une zone de combustion (2) de l'incinérateur (1), et les gaz de fumée (12) produits sont déchargés par l'intermédiaire d'un espace libre (4) au-dessus de la zone de combustion (2). Le procédé est caractérisé en ce qu'un mouvement turbulent est imprimé aux gaz de fumée (12) dans l'espace libre (4), sans que la turbulence dans la zone de combustion (2) ne s'en trouve sensiblement accrue. Ce procédé offre l'avantage de permettre une réduction supplémentaire de la teneur en NOx des gaz de fumée à l'aide de moyens relativement simples. Des valeurs d'environ 100 mg/m3 ont été atteintes dans un grand incinérateur industriel de boues de curage.
EP97923043A 1996-05-17 1997-05-09 PROCEDE POUR REDUIRE AU MINIMUM LA TENEUR EN NOx DES GAZ DE FUMEE Expired - Lifetime EP0898688B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19619764A DE19619764C2 (de) 1996-05-17 1996-05-17 Verfahren zur Minimierung des NO¶x¶-Gehaltes in Rauchgasen
DE19619764 1996-05-17
PCT/EP1997/002389 WO1997044620A1 (fr) 1996-05-17 1997-05-09 PROCEDE POUR REDUIRE AU MINIMUM LA TENEUR EN NOx DES GAZ DE FUMEE

Publications (2)

Publication Number Publication Date
EP0898688A1 true EP0898688A1 (fr) 1999-03-03
EP0898688B1 EP0898688B1 (fr) 2000-09-06

Family

ID=7794483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97923043A Expired - Lifetime EP0898688B1 (fr) 1996-05-17 1997-05-09 PROCEDE POUR REDUIRE AU MINIMUM LA TENEUR EN NOx DES GAZ DE FUMEE

Country Status (14)

Country Link
EP (1) EP0898688B1 (fr)
JP (1) JP2000510942A (fr)
KR (1) KR20000011104A (fr)
CN (1) CN1136412C (fr)
AR (1) AR007146A1 (fr)
AT (1) ATE196192T1 (fr)
AU (1) AU2895497A (fr)
CO (1) CO4700569A1 (fr)
DE (2) DE19619764C2 (fr)
ID (1) ID17426A (fr)
IL (1) IL127051A0 (fr)
TW (1) TW345610B (fr)
WO (1) WO1997044620A1 (fr)
ZA (1) ZA974260B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6280694B1 (en) * 1999-10-20 2001-08-28 Studsvik, Inc. Single stage denitration
DE10021448A1 (de) 2000-05-03 2001-11-08 Messer Griesheim Gmbh Verfahren und Vorrichtung für die Verbrennung von organischem Reststoff
DE10051733B4 (de) * 2000-10-18 2005-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur gestuften Verbrennung von Brennstoffen
CZ309201B6 (cs) * 2010-11-12 2022-05-18 Cabot Corporation Způsob snižování NOx emisí při spalování zbytkového plynu, kotelní agregát a zařízení pro výrobu sazí
CN102788355B (zh) * 2012-08-23 2015-03-25 武汉都市环保工程技术股份有限公司 湍流式危险废物热解焚烧炉
CN107448953A (zh) * 2017-09-16 2017-12-08 张文瀚 一种固废处理装置
FI128444B (en) 2017-12-22 2020-05-15 Valmet Technologies Oy Method and apparatus for burning primary fuel
CN110793043B (zh) * 2019-11-20 2021-03-12 上海华谊新材料有限公司 用于焚烧高盐有机废水的系统和废水处理方法
CN112432183B (zh) * 2020-10-23 2021-12-14 清华大学 垃圾焚烧耦合锅炉系统
CN112696697B (zh) * 2020-12-28 2022-03-08 清华大学 一种实验室有机废液就地实时处理系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0172946B1 (fr) * 1984-08-28 1987-07-22 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Appareil de combustion à lit fluidisé
DE3703568C2 (de) 1987-02-06 1999-06-17 Hoechst Ag Verfahren zum Betreiben von Wirbelschichtöfen
DE68917725T2 (de) * 1988-10-20 1995-04-13 Ebara Corp Verbrennungsverfahren und regelungsverfahren dazu.
DE3839381A1 (de) * 1988-11-22 1990-01-04 Mrklas Louis Vertikal rotierende wirbelschichtverbrennung fuer klinikmuell, klaerschlamm, pastoesen, staubigen, fluessigen und granulatfoermigen abfallstoff
DE4016894A1 (de) * 1990-05-25 1991-12-05 Hoelter Heinz Wirbelschichtfeuerungstechnologie mit verdraenger und/oder verwirbler im freiraum
ATE148938T1 (de) * 1990-11-22 1997-02-15 Hitachi Shipbuilding Eng Co Abfallverbrennungsanlage
SE9100122D0 (sv) * 1991-01-15 1991-01-15 Abb Carbon Ab Anordning vid foerbraenning i fluidiserad baedd
TW235335B (fr) * 1991-11-05 1994-12-01 Mitsubishi Heavy Ind Ltd

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9744620A1 *

Also Published As

Publication number Publication date
KR20000011104A (ko) 2000-02-25
AR007146A1 (es) 1999-10-13
CO4700569A1 (es) 1998-12-29
ZA974260B (en) 1997-11-17
AU2895497A (en) 1997-12-09
TW345610B (en) 1998-11-21
ATE196192T1 (de) 2000-09-15
DE19619764A1 (de) 1997-11-20
ID17426A (id) 1997-11-20
IL127051A0 (en) 1999-09-22
CN1221483A (zh) 1999-06-30
WO1997044620A1 (fr) 1997-11-27
EP0898688B1 (fr) 2000-09-06
DE19619764C2 (de) 2003-12-18
DE59702318D1 (de) 2000-10-12
CN1136412C (zh) 2004-01-28
JP2000510942A (ja) 2000-08-22

Similar Documents

Publication Publication Date Title
DE69511854T2 (de) Methode zur reinigung von stickstoffoxid enthaltenden gasen und vorrichtung zur reinigung von gasen in einem kessel zur erzeugung von dampf
DE60127164T2 (de) DURCH NEBENSTROM-HARNSTOFFABBAU ERMÖGLICHTE, SELEKTIVE KATALYTISCHE NOx-REDUKTION
EP1870155B1 (fr) Régénération des catalyseurs du type NT-SCR
DE4206602C2 (de) Verfahren zum Entfernen von Schadstoffen aus Verbrennungsabgasen und Wirbelschichtreaktor hierzu
DE69513358T2 (de) Verfahren zur Verringerung von gasförmigen Emissionen mit Halogenverbindungen in einem Wirbelschichtreaktor
DE19619764C2 (de) Verfahren zur Minimierung des NO¶x¶-Gehaltes in Rauchgasen
DE4109136A1 (de) Verfahren und vorrichtung zum aufbereiten schadstoffbelasteter abfallstoffe
WO1990012249A1 (fr) Procede de transformation de boues de curage
EP0607210A1 (fr) Procede pour la combustion de matieres solides.
EP0862019A1 (fr) Procédé et dispositif pour le traitement thermique des cendres volantes des incinérateurs à grille
DE69615077T2 (de) Verfahren und Vorrichtung zur Entfernung von organischen halogenierten Molekülen aus Gasströmen
CH690790A5 (de) Verfahren zur thermischen Behandlung von Abfallmaterial.
EP0883778A1 (fr) Procede d'incineration de boues d'epuration et installation correspondante
DE10123402A1 (de) Verfahren zum Behandeln von ammoniakhaltigen Rauchgasen
DE69309636T2 (de) Vorrichtung und Verfahren für thermische Zerstörung von sauren Substanzen in Rauchgasen
DE3009366A1 (de) Einrichtung zur trocknen entfernung von schadstoffen aus rauchgasen
DE60015908T2 (de) Verfahren zur Verminderung der Stickstoffoxidenemissionen in einer zirkulierenden Wirbelschichtverbrennungsanlage
DE202006020330U1 (de) Einrichtung zur Abluftreinigung
EP3275845B1 (fr) Procédé de combustion de boue d'épuration
DE19938269A1 (de) Verfahren zur thermischen Behandlung von Feststoffen
WO1989011904A1 (fr) Procede et installation pour la separation par voie seche de substances nocives contenues dans des gaz de fumee
DE3627086A1 (de) Verfahren und anordnung zum entfernen von stickstoffoxiden aus rauchgasen
DE19600869A1 (de) Verfahren zur Entstickung von Rauchgasen
EP0671201B1 (fr) Procédé pour séparer le trioxyde de soufre et pour conduire un dispositif de dénitration catalytique
DE69729530T2 (de) Verfahren und Anlage zur Behandlung von bei der Hausmüllverbrennung freiwerdenden Gasen

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

17P Request for examination filed

Effective date: 19981217

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IE IT LI

17Q First examination report despatched

Effective date: 19990323

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

Owner name: INFRASERV GMBH & CO. HOECHST KG

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

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE FR GB IE IT LI

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IE IT LI

REF Corresponds to:

Ref document number: 196192

Country of ref document: AT

Date of ref document: 20000915

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59702318

Country of ref document: DE

Date of ref document: 20001012

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

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

Effective date: 20001116

ET Fr: translation filed
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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59702318

Country of ref document: DE

Representative=s name: MAI DOERR BESIER PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20160602

Year of fee payment: 20

Ref country code: GB

Payment date: 20160523

Year of fee payment: 20

Ref country code: IE

Payment date: 20160530

Year of fee payment: 20

Ref country code: CH

Payment date: 20160526

Year of fee payment: 20

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

Ref country code: FR

Payment date: 20160523

Year of fee payment: 20

Ref country code: AT

Payment date: 20160525

Year of fee payment: 20

Ref country code: IT

Payment date: 20160530

Year of fee payment: 20

Ref country code: BE

Payment date: 20160523

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59702318

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20170508

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 196192

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170509

REG Reference to a national code

Ref country code: IE

Ref legal event code: MK9A

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

Ref country code: IE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170509

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170508