WO2007062276A3 - Continuous flow biodiesel processor - Google Patents
Continuous flow biodiesel processor Download PDFInfo
- Publication number
- WO2007062276A3 WO2007062276A3 PCT/US2006/045743 US2006045743W WO2007062276A3 WO 2007062276 A3 WO2007062276 A3 WO 2007062276A3 US 2006045743 W US2006045743 W US 2006045743W WO 2007062276 A3 WO2007062276 A3 WO 2007062276A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- continuous flow
- biodiesel processor
- flow biodiesel
- processor
- flow
- 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.)
- Ceased
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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1806—Stationary reactors having moving elements inside resulting in a turbulent flow of the reactants, such as in centrifugal-type reactors, or having a high Reynolds-number
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0217—Separation of non-miscible liquids by centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/025—Bobbin units
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1812—Tubular reactors
- B01J19/1818—Tubular reactors in series
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/242—Tubular reactors in series
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
- C10L1/026—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only for compression ignition
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/003—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fatty acids with alcohols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
- B01F27/2711—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with intermeshing elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
- B01F27/2721—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces provided with intermeshing elements
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00002—Chemical plants
- B01J2219/00004—Scale aspects
- B01J2219/00006—Large-scale industrial plants
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/0009—Coils
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
- B01J2219/00765—Baffles attached to the reactor wall
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/185—Details relating to the spatial orientation of the reactor vertical
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/19—Details relating to the geometry of the reactor
- B01J2219/194—Details relating to the geometry of the reactor round
- B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
- B01J2219/1943—Details relating to the geometry of the reactor round circular or disk-shaped cylindrical
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/19—Details relating to the geometry of the reactor
- B01J2219/194—Details relating to the geometry of the reactor round
- B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
- B01J2219/1946—Details relating to the geometry of the reactor round circular or disk-shaped conical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
A continuous flow biodiesel processor utilizing high turbulence mixing of oil being processed and a flow-through separation tank with distinct zones and recirculation draw tubes is described, along with methods for using same.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74034605P | 2005-11-28 | 2005-11-28 | |
| US60/740,346 | 2005-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007062276A2 WO2007062276A2 (en) | 2007-05-31 |
| WO2007062276A3 true WO2007062276A3 (en) | 2009-04-23 |
Family
ID=38067995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2006/045743 Ceased WO2007062276A2 (en) | 2005-11-28 | 2006-11-28 | Continuous flow biodiesel processor |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20070175092A1 (en) |
| WO (1) | WO2007062276A2 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100799597B1 (en) * | 2006-04-07 | 2008-01-30 | (주)두웰테크놀로지 | Alternative fuel production apparatus and method using high efficiency annular reactor |
| GB2438403B (en) * | 2006-05-25 | 2011-02-23 | Viktor Fedorovych Dekhtiaruk | Manufacture of biodiesel |
| EP1920829A1 (en) * | 2006-11-07 | 2008-05-14 | Süd-Chemie Ag | Amorphous adsorbent, method of obtaining the same and its use in the bleaching of fats and/or oils |
| EP2102316A1 (en) * | 2006-11-07 | 2009-09-23 | Sued-Chemie AG | Method for purification of biodiesel |
| US20080115407A1 (en) * | 2006-11-22 | 2008-05-22 | Hoffman Mark A | System and method for producing biodiesel |
| DE102007019379A1 (en) * | 2007-04-23 | 2008-10-30 | Bayer Technology Services Gmbh | Process for the purification of product mixtures from transesterification reactions |
| US8052848B2 (en) * | 2007-06-26 | 2011-11-08 | The Penn State Research Foundation | Ultrasonic and microwave methods for enhancing the rate of a chemical reaction and apparatus for such methods |
| US8901330B2 (en) * | 2007-08-29 | 2014-12-02 | Sauber Llc | Method for production of biofuel |
| AU2014240324B2 (en) * | 2007-08-29 | 2016-06-30 | Agron Bioenergy Llc | Method for production of biofuel |
| US20100205853A1 (en) * | 2007-10-09 | 2010-08-19 | Council Of Scientific & Industrial Research | Process for the Preparation of Biodiesel from Vegetable Oils Containing High FFA |
| US7452515B1 (en) * | 2007-11-06 | 2008-11-18 | Biofuels Allied, Inc. | System for creating a biofuel |
| US9080117B2 (en) * | 2008-01-22 | 2015-07-14 | GER Enterprises, LLC | Biofuel production method and system |
| US8097049B2 (en) * | 2008-02-07 | 2012-01-17 | The Dallas Group Of America, Inc. | Biodiesel purification by a continuous regenerable adsorbent process |
| CZ305086B6 (en) * | 2008-09-16 | 2015-04-29 | Univerzita Pardubice | Process for preparing biofuel from vegetable oils, particularly from rapeseed oil |
| US8232419B2 (en) * | 2008-10-02 | 2012-07-31 | The Dallas Group Of America | Triacylglycerol purification by a continuous regenerable adsorbent process |
| WO2010081063A2 (en) * | 2009-01-12 | 2010-07-15 | Arisdyne Systems Inc. | Process for improved biodiesel fuel |
| CA2750127A1 (en) * | 2009-02-10 | 2010-08-19 | Bio-Alternative Llc | Mobile biodiesel production facility |
| WO2010107446A1 (en) * | 2009-03-19 | 2010-09-23 | Green Earth Fuels, Llc | Biodiesel cold soak filtering system |
| AR074573A1 (en) * | 2009-12-09 | 2011-01-26 | Biocombustibles Y En Alternativas Als S A | A CONTINUOUS PROCEDURE TO PRODUCE BIODIESEL FUEL |
| WO2012106158A2 (en) * | 2011-02-01 | 2012-08-09 | Ohana Investment Works Llc | Methods and apparatus for controlling moisture in plant oils and liquid biofuels |
| CA2768717C (en) * | 2011-12-20 | 2021-03-02 | The Biofuel Partnership Limited | A biodiesel manufacturing system and apparatus |
| US8304566B2 (en) | 2012-03-09 | 2012-11-06 | Antonio Cantizani | Processes and apparatus for small-scale in situ biodiesel production |
| US9475029B2 (en) * | 2013-08-28 | 2016-10-25 | Louisiana Eco Green, L.L.C. | Method of manufacturing bio-diesel and reactor |
| NL2017029B1 (en) * | 2016-06-23 | 2018-01-17 | Flowid Holding B V | Spinning disc reactor |
| WO2024205513A1 (en) * | 2023-03-28 | 2024-10-03 | Esg Jet (Thailand) Company Limited | Method and application for methyl ester and glycerine separation used in biodiesel purification process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1670593A (en) * | 1923-12-03 | 1928-05-22 | Barrett Co | Mixing machine and process |
| US3738492A (en) * | 1972-03-17 | 1973-06-12 | Brunswick Corp | Oil-water separator |
| EP0249463A2 (en) * | 1986-06-11 | 1987-12-16 | Bio-Energy Technology Ltd. | Bio-fuel production |
| US5514820A (en) * | 1989-09-29 | 1996-05-07 | Henkel Kommanditgesellschaft Auf Aktien | Continuous process for the production of lower alkyl esters |
| US6015440A (en) * | 1997-10-31 | 2000-01-18 | Board Of Regents Of The University Of Nebraska | Process for producing biodiesel fuel with reduced viscosity and a cloud point below thirty-two (32) degrees fahrenheit |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2728457A (en) * | 1951-09-14 | 1955-12-27 | Atlantic Refining Co | Phase separation process and apparatus |
| DE4209779C1 (en) * | 1992-03-26 | 1993-07-15 | Oelmuehle Leer Connemann Gmbh & Co., 2950 Leer, De | |
| US6174501B1 (en) * | 1997-10-31 | 2001-01-16 | The Board Of Regents Of The University Of Nebraska | System and process for producing biodiesel fuel with reduced viscosity and a cloud point below thirty-two (32) degrees fahrenheit |
| PL341110A1 (en) * | 1997-11-24 | 2001-03-26 | Energea Umwelttechnologie Gmbh | Method of obtaining methyl esters of fatty acids and system therefor |
| DE59813936D1 (en) * | 1998-04-29 | 2007-04-19 | Sulzer Chemtech Ag | A method of separating a first from a second liquid |
| US20030032826A1 (en) * | 2001-07-20 | 2003-02-13 | The Board Of Regents Of The University Of Nebraska | Transesterification process for production of biodiesel |
| WO2003022961A1 (en) * | 2001-09-09 | 2003-03-20 | Bio-Clean Fuels, Inc. | Method and apparatus for making biodiesel fuel |
| PT1534659E (en) * | 2002-08-23 | 2008-07-03 | Richard Gapes | Transesterification and esterification of fatty acids and triglycerides by dispersion and dispersion method for the production of fatty acid methylesters |
| DE10243700A1 (en) * | 2002-09-20 | 2004-04-01 | Oelmühle Leer Connemann Gmbh & Co. | Method and device for producing biodiesel |
| US20050027137A1 (en) * | 2003-07-29 | 2005-02-03 | Hooker Jeffrey D. | Apparatus and method for the production of fatty acid alkyl ester |
-
2006
- 2006-11-27 US US11/563,680 patent/US20070175092A1/en not_active Abandoned
- 2006-11-28 WO PCT/US2006/045743 patent/WO2007062276A2/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1670593A (en) * | 1923-12-03 | 1928-05-22 | Barrett Co | Mixing machine and process |
| US3738492A (en) * | 1972-03-17 | 1973-06-12 | Brunswick Corp | Oil-water separator |
| EP0249463A2 (en) * | 1986-06-11 | 1987-12-16 | Bio-Energy Technology Ltd. | Bio-fuel production |
| US5514820A (en) * | 1989-09-29 | 1996-05-07 | Henkel Kommanditgesellschaft Auf Aktien | Continuous process for the production of lower alkyl esters |
| US6015440A (en) * | 1997-10-31 | 2000-01-18 | Board Of Regents Of The University Of Nebraska | Process for producing biodiesel fuel with reduced viscosity and a cloud point below thirty-two (32) degrees fahrenheit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007062276A2 (en) | 2007-05-31 |
| US20070175092A1 (en) | 2007-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007062276A3 (en) | Continuous flow biodiesel processor | |
| SI2011813T1 (en) | Organofunctional modified polysiloxans and their use for defoaming fluid liquids with biofuel admixtures | |
| WO2011014855A3 (en) | Removal of oxygen from biological fluids | |
| WO2010014918A3 (en) | Spinning fluids reactor | |
| WO2006016966A3 (en) | Reactor with primary and secondary channels | |
| EA201500369A1 (en) | CELLULAR PIPE | |
| WO2011057774A3 (en) | Integrated choke manifold system for use in a well application | |
| WO2010030953A3 (en) | Algaculture systems for biofuel production | |
| EP2346380A4 (en) | Beverage glass with internal decanting, filtering, mixing, and aerating cell | |
| EP2248886A3 (en) | Anaerobic digester | |
| WO2007120402A3 (en) | Device and method for creating hydrodynamic cavitation in fluids | |
| WO2007109333A3 (en) | Apparatus and method for coating of elongate flimsy members | |
| EP1955674A3 (en) | A method of conveying hydrocarbon fluids with a swirl flow | |
| WO2010135025A3 (en) | Methods and systems for mixing reactor feed | |
| WO2008009952A3 (en) | Flow-through cell and method of use | |
| WO2008139728A1 (en) | Gas-liquid mixing and circulating device | |
| CN201129776Y (en) | Sucking-exhausting type cooking fume purifier | |
| CN202061421U (en) | Automatic discharge equipment | |
| AU2011305492A8 (en) | Low cut water sampling device | |
| CN102042454A (en) | Anti-blocking bent pipe | |
| CN202198303U (en) | Heat dissipation cup | |
| CN203451276U (en) | Tower-type aerator | |
| CN202252856U (en) | Large and medium-sized biogas project gas pipeline automatic drain | |
| CN201739572U (en) | Miniature backflow preventer | |
| CN204588807U (en) | A kind of energy-saving membrane reactor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 06844644 Country of ref document: EP Kind code of ref document: A2 |