WO2010040449A2 - Verfahren und anlage zur unterbrechungsfreien brennstoffversorgung einer vergasungsanlage - Google Patents
Verfahren und anlage zur unterbrechungsfreien brennstoffversorgung einer vergasungsanlage Download PDFInfo
- Publication number
- WO2010040449A2 WO2010040449A2 PCT/EP2009/006855 EP2009006855W WO2010040449A2 WO 2010040449 A2 WO2010040449 A2 WO 2010040449A2 EP 2009006855 W EP2009006855 W EP 2009006855W WO 2010040449 A2 WO2010040449 A2 WO 2010040449A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- dust
- plant
- reservoir
- grinding
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
- C10J3/506—Fuel charging devices for entrained flow gasifiers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/156—Sluices, e.g. mechanical sluices for preventing escape of gas through the feed inlet
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0909—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
- C10J2300/0933—Coal fines for producing water gas
Definitions
- the invention relates to a method and a system for uninterrupted fuel supply of a gasification plant for the production of raw synthesis gas of the type specified in the preamble of claim 1 or claim 4.
- finely divided fuels eg dusty ( ⁇ 0.5 mm) fuels, eg coal, petroleum coke, biological waste or fuels in suspension with low particle loading ( ⁇ 50 kg / m 3 no fluidized bed) with oxygen-containing gasification agents under elevated pressure at temperatures above the slag melting point.
- a carbonaceous fuel is reacted with an oxygen-containing gas, wherein the oxygen-containing gas is supplied in a stoichiometric ratio, so as to obtain a carbon monoxide-containing product gas.
- the fuel In order to achieve as complete a conversion as possible under sub-stoichiometric conditions, the fuel must be fed finely divided into the reactor. The reaction usually takes place under elevated pressure.
- the dust carbon silo is dimensioned so that sufficient time is given to repair a grinding plant.
- the effort to provide corresponding buffer times in the storage devices is very high.
- Large storage volume does not only affect the costs for the actual large containers, but also for the associated building systems and auxiliary equipment. The method described above is known from the Applicant realized plants, a supply of burners on several Schleussysteme shows the DE 10 2006 029 595 Al.
- the object of the invention is to increase the system availability as well as the simultaneous minimization of storage capacities in order to achieve a cost reduction in particular.
- this object is achieved according to the invention in that the reservoir from at least two Mahltrocknungsanlagen the dust-like fuel is supplied via conveyor, wherein at least one of the conveyor is acted upon as Staubtransport- device of at least two Mahltrocknungsanlagen.
- each of the each carburetor upstream reservoir is acted upon by at least two Mahltrocknungsanlagen simultaneously.
- a dust transport device is associated with a further dust transport device, which are acted upon simultaneously and / or separately from at least two Mahltrocknungsanlagen.
- a plant according to the invention in that such a plant is characterized in that the dust reservoir at least two Mahltrocknungsanlagen are assigned and conveying means for supplying the dust-like fuel, wherein at least one conveying means of two Staubtransport- devices is formed , which are acted upon by at least two Mahl-drying plants.
- each carburetor is associated with a reservoir, wherein the reservoir is acted upon by at least two grinding drying systems and / or that to form a 100% redundancy each dust transport device is formed by two jointly and / or separately acted dust transport devices, each associated with two Mahltrocknungsanlagen. It has proved to be expedient if each grinding-drying plant is assigned at least two solids feed silos and one mill for supplying and mixing different fuels or additives.
- This embodiment has the particular advantage that the corresponding fuels can be optimally assembled, depending on the type of fuel here, different fuels or a fuel and an aggregate can be mixed together, depending on the fuel composition.
- each Staubvorrats- container is connected by dust transporting devices with several grinding plants, which can be provided that the transport devices are formed by the Mahltrocknungsanlagen to each storage tank as a horizontal conveyor, in particular as Fluidisiererrinne, trough chain conveyor, screw conveyor, belt conveyor, pipe conveyor or as a pipe belt conveyor.
- the invention provides in a further embodiment that for each Festoffsorte own transport device from the fuel storage bin to a distributor and for each type of solid a distributor to the silos of Mahltrocknungsanlagen is provided, which can be additionally provided that the Transport device and the distributor for each type of solid material are each designed with 100% redundancy.
- the invention also provides that the distribution devices for the raw solid material are connected to the silos of the grinding drying plants with each grinding drying plant, where in the case of the dwell device provided in each case. Different technical designs may have, what matters here but not closer.
- FIG. 1 shows a plant according to the invention with a carburetor
- Fig. 3 shows a modified embodiment with two carburetors.
- Fig. 1 exemplifies a gasification plant, which can be charged with two different solids.
- the solids exemplified two may be, for example, a fuel and an additive, which is required for the thermal gasification.
- the necessity and the type of aggregates depends on the properties of the used.
- the example in FIG. 1 can also be two fuels. In principle, the concept can also handle numerous other fuels and, if necessary, additives.
- the crude solid is supplied from the fuel storage 1 via transport devices 2 and 3 to a distribution device 4 and 5, respectively, which carries out a distribution to a plurality of (in FIG. 3 by way of example 3) grinding drying systems.
- the capacity of state-of-the-art gasification processes is so great that fuel supply can not be guaranteed by a grind-drying plant alone. Even the largest commercially available mills are not enough to safely supply a gasifier. The reason is on the one hand that the capacity of a grinding plant is not sufficient, and on the other hand, that the grinding plant has an individual availability.
- a certain overcapacity of the grinding plants must be provided in order to be able to guarantee a regular operation of the carburettor in the event of failure of the grinding plants.
- the overcapacity of the grinding plants can be achieved for example with a standby grinding plant, which is put into operation in case of failure.
- the overcapacities can be supplied by increasing the capacity of the grinding plants remaining in operation.
- the redundancy concept provides that at least the capacity of a grinding plant is additionally provided to ensure the fuel supply of the grinding plant in case of failure of a grinding plant either by the overcapacity of the remaining grinding plants or by an additional standby grinding plant.
- a redundancy in the conveying, transporting and distributing devices must be provided for a secure fuel supply.
- the transport device for each raw solid 2a, 3a with 100% redundancy ie double 2b, 3b, executed.
- the distributor device for each solid type 4a, 5a to the grinding plants 6a to 6c is also carried out with 100% redundancy.
- the dust-transporting device 12a is also executed twice from the grinding plants to the dust reservoir 13 12b. From the dust reservoir 13, the fuel dust is brought to the required pressure via corresponding lock devices 15 to the dust reservoir 16, from where a continuous transport to the 'burners 19 of the gasification reactor 18 is ensured.
- FIG. 2 and 3 are two carburettors which are supplied with pulverulent fuel by an arrangement of grinding plants (four grinding plants in FIG. 2, five grinding plants in FIG. 3). Each carburetor has its own dust reservoir 13a, 13b.
- the redundancy in the refining lines is provided so that the failure of a grinding plant can be compensated by the power increase of the remaining, so that both carburetors can continue to work without derating.
- two 6a, 6d of the four grinding plants are arranged so that they can give the generated dust directly into the dust reservoir 13a, 13b IIa, IIb.
- a dust transport device 12a with redundancy 12b must be connected to the middle grinding plants 6b, 6c in order to be able to feed into the first reservoir 13a.
- the two middle grinding plants 6b, 6c must convey via a further dust transport device 12c with redundancy 12d to the dust reservoir 13b.
- the grinding plants 6a and 6b supply the dust reservoir 13a and analog 6c and 6d the container 13b. If, for example, the grinding plant 6c fails, the power of the remaining grinding plants is increased to 33%.
- the grinding plant 6b supplies half via the dust transporting device 12 (a or b) to the dust reservoir 13a and the other half via the dust transporting device 12 (c or d) to the dust reservoir 13b.
- FIG. 3 shows two carburetors supplied with pulverulent fuel through an arrangement of five grinding plants.
- Each carburetor has its own dust reservoir 13a, 13b.
- tion of a standby grinding plant can be compensated so that both carburetors can continue to work without derating.
- two 6a, 6e of the four grinding plants are arranged so that they can give the generated dust directly in the dust reservoirs 13a, 13b IIa, IIb.
- a dust transport device 12a with redundancy 12b must be connected to the grinding plants 6b and 6c in order to be able to feed into the first reservoir 13a.
- the two grinding plants 6c and 6d have to convey via a further dust transport device 12c with redundancy 12d to the dust reservoir 13b.
- the grinding plants 6a and 6b supply the dust reservoir 13a and analogously 6d and 6e the container 13b.
- the grinding plant 6c is in standby mode. If, for example, grinding system 6b fails, 6c is switched on and conveys via dust-conveying device 12a, 12b in dust container 13a. Similarly, the failure of other grinding plants is compensated.
- Pneumatic conveyors e.g. Dense phase or thin-stream solids conveying, fluidized bed conveying or fluidising channels.
- the preferred embodiment according to the invention provides for the dust transport device 12 before a fluidization.
- the fluidizing channel offers the advantage of a low gradient of about 5 to 10 ° to the horizontal, whereby the transport of dust from several mills to the dust reservoir is mainly horizontal, so that only a small loss of height must be accepted.
- For the fluidization and transport of the fuel dust can already be used advantageously inert gas.
- Another advantage is the complete relinquishment of moving parts, whereby a high level of serviceability and reduced probability of failure are achieved.
- dust transport may of course also be provided with mechanical conveyors, e.g. Trough chains or snails are performed, but then the disadvantage of lower availability must be considered.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801395299A CN102177225A (zh) | 2008-10-07 | 2009-09-23 | 用于不间断地向气化设备供应燃料的方法和装置 |
US12/998,293 US20110192329A1 (en) | 2008-10-07 | 2009-09-23 | Method and installation for the uninterupted supply of a gasification plant with fuel |
CA2739734A CA2739734A1 (en) | 2008-10-07 | 2009-09-23 | Method and system for interruption-free fuel supply to a gasification system |
BRPI0920677A BRPI0920677A2 (pt) | 2008-10-07 | 2009-09-23 | processo e instalação para a alimentação ininterrupta com combustível de uma instalação de gasificação |
EP09778663A EP2334763A2 (de) | 2008-10-07 | 2009-09-23 | Verfahren und anlage zur unterbrechungsfreien brennstoffversorgung einer vergasungsanlage |
AU2009301460A AU2009301460A1 (en) | 2008-10-07 | 2009-09-23 | Method and installation for the uninterrupted supply of a gasification plant with fuel |
ZA2011/03221A ZA201103221B (en) | 2008-10-07 | 2011-05-04 | Method and installation for the uninterrupted supply of a gasification plant with fuel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008050675A DE102008050675A1 (de) | 2008-10-07 | 2008-10-07 | Verfahren und Anlage zur unterbrechungsfreien Brennstoffversorgung einer Vergasungsanlage |
DE102008050675.3 | 2008-10-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010040449A2 true WO2010040449A2 (de) | 2010-04-15 |
WO2010040449A3 WO2010040449A3 (de) | 2010-10-07 |
Family
ID=41821145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/006855 WO2010040449A2 (de) | 2008-10-07 | 2009-09-23 | Verfahren und anlage zur unterbrechungsfreien brennstoffversorgung einer vergasungsanlage |
Country Status (12)
Country | Link |
---|---|
US (1) | US20110192329A1 (de) |
EP (1) | EP2334763A2 (de) |
KR (1) | KR20110082522A (de) |
CN (1) | CN102177225A (de) |
AU (1) | AU2009301460A1 (de) |
BR (1) | BRPI0920677A2 (de) |
CA (1) | CA2739734A1 (de) |
DE (1) | DE102008050675A1 (de) |
RU (1) | RU2011117408A (de) |
TW (1) | TW201022599A (de) |
WO (1) | WO2010040449A2 (de) |
ZA (1) | ZA201103221B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011012392A3 (de) * | 2009-07-31 | 2011-06-23 | Siemens Aktiengesellschaft | Integration von kohlemahltrocknung, kohleeinspeisung und kohlevergasung für flugstromvergasungsanlagen |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045917A1 (de) * | 2010-09-21 | 2012-03-22 | Uhde Gmbh | Vorrichtung und Verfahren zur simultanen Aufbereitung von festen Brennstoffen und Biomassen mit anschließender Vergasung |
EP2666846A1 (de) * | 2012-05-24 | 2013-11-27 | Grupo Guascor S.L. | Biomassezuführsystem |
PL3473927T3 (pl) * | 2017-10-19 | 2023-05-08 | General Electric Company | Sposób działania układu wytwarzania pary |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070079554A1 (en) * | 2005-10-07 | 2007-04-12 | Future Energy Gmbh | Method and device for high-capacity entrained flow gasifier |
DE102007005782B3 (de) * | 2007-02-06 | 2008-02-14 | Uhde Gmbh | Verfahren und Anlage zur Trocknung von staubförmigen, insbesondere einer Vergasung zuzuführenden Brennstoffen |
DE102007034524A1 (de) * | 2007-07-24 | 2009-01-29 | Siemens Ag | Simultane Vergasung von Kohlen stark unterschiedlichen Inkohlungsgrades in der Flugstromvergasung |
Family Cites Families (10)
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US1620191A (en) * | 1923-11-10 | 1927-03-08 | Charles W E Clarke | Pulverized fuel combustion system |
DE2821632C3 (de) * | 1978-05-18 | 1980-11-13 | Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm | Vorrichtung zum Zuführen von Kohlengranulat zu Brennern |
US4389244A (en) * | 1982-01-11 | 1983-06-21 | Yaroshevsky Stanislav L | Method of supplying pulverized fuel mixture to blast furnace tuyeres |
NL183951C (nl) * | 1983-01-12 | 1989-03-01 | Hoogovens Groep Bv | Doseerinrichting voor het doseren van poederkool in een luchtleiding naar een hoogoven. |
US4480560A (en) * | 1983-12-09 | 1984-11-06 | International Coal Refining Company | Pneumatic conveying of pulverized solvent refined coal |
US4690076A (en) * | 1986-04-04 | 1987-09-01 | Combustion Engineering, Inc. | Method for drying coal with hot recycle material |
US4686913A (en) * | 1986-05-01 | 1987-08-18 | Kaminski Donald J | Refuse derived fuel delivery system and distribution conveyors |
US4744311A (en) * | 1987-05-27 | 1988-05-17 | Riley Stoker Corporation | System for feeding solid particulate material for combustion in a reactor vessel |
US5992335A (en) * | 1996-09-13 | 1999-11-30 | Nkk Corporation | Method of blowing synthetic resin into furnace and apparatus therefor |
CA2418601A1 (en) * | 2002-03-25 | 2003-09-25 | Industrial Energy Management Solutions, Inc. | Gasification system |
-
2008
- 2008-10-07 DE DE102008050675A patent/DE102008050675A1/de not_active Withdrawn
-
2009
- 2009-09-23 US US12/998,293 patent/US20110192329A1/en not_active Abandoned
- 2009-09-23 RU RU2011117408/05A patent/RU2011117408A/ru not_active Application Discontinuation
- 2009-09-23 CN CN2009801395299A patent/CN102177225A/zh active Pending
- 2009-09-23 AU AU2009301460A patent/AU2009301460A1/en not_active Abandoned
- 2009-09-23 EP EP09778663A patent/EP2334763A2/de not_active Withdrawn
- 2009-09-23 WO PCT/EP2009/006855 patent/WO2010040449A2/de active Application Filing
- 2009-09-23 BR BRPI0920677A patent/BRPI0920677A2/pt not_active IP Right Cessation
- 2009-09-23 KR KR1020117008259A patent/KR20110082522A/ko not_active Application Discontinuation
- 2009-09-23 CA CA2739734A patent/CA2739734A1/en not_active Abandoned
- 2009-10-05 TW TW098133681A patent/TW201022599A/zh unknown
-
2011
- 2011-05-04 ZA ZA2011/03221A patent/ZA201103221B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070079554A1 (en) * | 2005-10-07 | 2007-04-12 | Future Energy Gmbh | Method and device for high-capacity entrained flow gasifier |
DE102006029595A1 (de) * | 2005-10-07 | 2007-12-27 | Siemens Fuel Gasification Technology Gmbh | Verfahren und Vorrichtung für Flugstromvergaser hoher Leistung |
DE102007005782B3 (de) * | 2007-02-06 | 2008-02-14 | Uhde Gmbh | Verfahren und Anlage zur Trocknung von staubförmigen, insbesondere einer Vergasung zuzuführenden Brennstoffen |
DE102007034524A1 (de) * | 2007-07-24 | 2009-01-29 | Siemens Ag | Simultane Vergasung von Kohlen stark unterschiedlichen Inkohlungsgrades in der Flugstromvergasung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011012392A3 (de) * | 2009-07-31 | 2011-06-23 | Siemens Aktiengesellschaft | Integration von kohlemahltrocknung, kohleeinspeisung und kohlevergasung für flugstromvergasungsanlagen |
Also Published As
Publication number | Publication date |
---|---|
DE102008050675A1 (de) | 2010-04-15 |
ZA201103221B (en) | 2012-01-25 |
AU2009301460A1 (en) | 2010-04-15 |
TW201022599A (en) | 2010-06-16 |
WO2010040449A3 (de) | 2010-10-07 |
KR20110082522A (ko) | 2011-07-19 |
EP2334763A2 (de) | 2011-06-22 |
CA2739734A1 (en) | 2010-04-15 |
RU2011117408A (ru) | 2012-11-20 |
CN102177225A (zh) | 2011-09-07 |
BRPI0920677A2 (pt) | 2015-12-29 |
US20110192329A1 (en) | 2011-08-11 |
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