EP2066764A2 - Input system - Google Patents
Input systemInfo
- Publication number
- EP2066764A2 EP2066764A2 EP07788173A EP07788173A EP2066764A2 EP 2066764 A2 EP2066764 A2 EP 2066764A2 EP 07788173 A EP07788173 A EP 07788173A EP 07788173 A EP07788173 A EP 07788173A EP 2066764 A2 EP2066764 A2 EP 2066764A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw
- biomass
- stuffing
- gas
- stopfschnecke
- 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.)
- Pending
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
- C10J3/503—Fuel charging devices for gasifiers with stationary fluidised bed
-
- 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
- C10J3/72—Other features
- C10J3/723—Controlling or regulating the gasification process
-
- 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
- C10J2200/158—Screws
-
- 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
- C10J2300/12—Heating the gasifier
- C10J2300/1261—Heating the gasifier by pulse burners
Definitions
- the invention relates to a system for the application of biogenic starting materials in a carburetor in particular in a pulse carburetor according to the applications DE 10 2006 022 265.2, DE 10 2006 017 355.4, DE 10 2006 017 353.8.
- thermal gasification processes has essentially produced three different types of gasifier, the entrained flow gasifier, the fixed bed gasifier and the fluidized bed gasifier.
- Literature for fluidized bed gasification which is part of this application, can be found in the following literature: Wolfgang Adlroch, Rheinbraun AG, Hisaaki Sumitomo Heavy Industries, Ltd., Joachim Wolff, Karsten Radtke (Speaker ), Krupp ühde GmbH, Gasification Technology Conference, San Francisco, California, USA; October 8-11, 2000; Conference Proceedings.
- Literature for circulating fluidized bed in the composite system can be taken from the following sources: “Decentralized electricity and heat generation based on biomass gasification", R. Rauch, H. Hofbauer, lecture University of Leipzig 2004. "circulating fluidized bed, gasification with air,
- Literature for combination fixed bed can be taken from the following sources: 30 MV Carbo V Biomass Gasifier for Municipal CHP; The CHP Project for the City of Aachen, Dr Rudioff; Lecture Paris, October 2005
- Literature for combination for the fixed bed gasification can be taken from the following sources: Operation Results of the BGL Gasifier at Schwarze Pumpe,
- gasification takes place in two stages.
- the biomass is split at 500 ° C into its volatile and solid components.
- the result is a tar-containing gas and additionally "charcoal".
- the gas is burned at temperatures of more than 1200 0 C, with the tars decay into CO2 and H2.
- the hot flue gas and the charcoal are then used to produce a CO and H2-containing product gas. Due to the high technical and economic costs, due to the high pressure level (up to 40 bar), these carburettor types are completely unsuitable for the gasification of biomass (which is regionally produced and has a significant impact on the costs of logistics and processing).
- the fluidized bed gasifiers can be subdivided into two processes, which differ in the heating of the fluidized bed, the circulating fluidized bed gasifier and the stationary fluidized bed gasifier.
- Literature for desulfurization in a fluidized bed gasification may be taken from the following sources: Gasification of Lignite and Wood in the Lurgi Circulating Fluidized Be Gasifier; Research Project 2656-3; Final Report, August 1988, P. Mehrung, H.Vierrath; LURGI GmbH; for Electric Power Research Institute, Palo Alto, California: ZWS pressure gasification in the combi-block,
- Solid / water mixtures by means of compressed air e.g. Injection of this air by means of nozzles in pipes or a stirred tank, is promoted.
- the injected gas causes a reduction in the suspension density and thus an increase in buoyancy. Together with the introduced kinetic energy causes the promotion.
- the following invention describes a system comprising the processes of giving up the biogenic feedstocks in a gasifier, in particular in a pulse carburetor.
- the starting materials cover a wide range. So are
- Pelleting machines are produced or biogenic feedstocks from agriculture (cereals).
- Characteristic of these biomasses are C contents of the starting substance in the range from 40 to 50% by weight, with hydrogen contents in the range up to 6% by weight and oxygen content in the range from 40 to 50% by weight.
- the calorific values of the feedstock range up to 20 MJ / kg.
- the bulk density varies between 200 and 700 kg / h.
- In addition to a certain amount of fine material extruded have a diameter between 5 and 10mm with a length of 10 to 20 mm, and particulate feedstock dimensions in the range of 20 x
- the object of the invention is a transport system that gives up the biomass efficiently taking into account special properties of the reactor in these.
- the process flow includes the following substeps that are performed with the appropriate devices.
- Intermediate buffer An intermediate buffer in a silo (layer bunker) serves as a template for the entry and dosage. In this cache the feedstocks can be funded by different camps.
- the feedstock is dosed and distributed to one, two or more entry points so that the required gas production occurs.
- the system also ensures the function of the gland as pressure seal of the reactor system.
- the system has the flexibility to accomplish these tasks using the mentioned range of feedstocks.
- a pressure seal of the reactor through the material plug formed in the stuffing screw and a multi-stage system of rotary valve and gate valve before and after the StopfSchnecke, as well as an admission of the introduction tube with N 2 (nitrogen) or CO 2 (carbon dioxide) may be necessary, depending on the reactor type.
- This material plug is continuously generated in the stuffing screw serving as an entry organ in the carburettor via an adjustment of the corresponding quantities.
- the feed screws are controlled so that the mass flow and the permanent formation of the sealing plug are ensured.
- This system is further characterized in that the stuffing worm (s) are / are equipped in their front area with a nozzle system which operates in a manner similar to a jet pulse system, as known from filter technology.
- the Stopfschecke also has cooling means of the shaft and the shell. (Optionally it is possible to cool the wave wings of this stuffing screw).
- the material is introduced during operation of the carburetor in a dense, fluidized fluidized bed. Measures are taken to avoid the return flow of bedding material into the stuffing screw when the entry screw / s is at a standstill, in particular during the startup and shutdown operations.
- the system is equipped with a slide that works through the conveyed and produces the conclusion in a suitable manner. This facility allows over an emptying device and the emptying of this
- Feed materials to the reactor Due to the specific properties, the system also allows entry at internal pressures of up to 5 bar.
- the entry and metering system consists of the following elements:
- a buffer with regulated discharge unit - a dosing screw (s), which doses the amount that is taken from the buffer; a transport screw that transports the quantity to the stuffing screw;
- the amount of gas produced depends directly (is proportional) on the amount of feedstock. This physical dependency is used to control the entry amount.
- the measurement of the product gas quantity, or the comparison between the standard value (setpoint specification) and the measured product gas quantity, serves as a master control of the amount of starting material.
- these sizes act directly on the metering screws (single, parallel or multiple design). These screw (s) are acted upon by the clearing and dosing screw of the intermediate bunker, these actuators are together it a level monitoring the Zu Kunststoffschurre the
- the subsequent transport screws which are not regulated in one possible embodiment, feed the feedstock to the actual feeding system.
- the overall control concept thus includes the entry of biogenic feedstocks into a gasifier for alotine gasification with generation of the heat of reaction of the gasification reaction in special pulse burners.
- Fig. 1 shows an overall schematic view of the invention
- Fig. 2 shows the schematic structure of the metering screw and the stuffing screw
- Fig. 3 shows the stuffing screw in detail.
- the control concept includes the specifications by the product gas quantity for the dosage of feedstocks by controlled discharge from a buffer and speed controlled dosing with monitoring the level of the feed chutes, the distribution on the entry organs and the formation of the plug in the speed-controlled feed screw, with their speed on the main controller (Master controller) and the level monitoring in the feeder to the entry system takes place.
- This feed system for solids in the context of fluidized bed gasification is a significant advance.
- the discharge system 1 (Fig. 1) consists of a through the
- Master controller 2 speed-controlled screw 3, which is centrally mounted in the buffer 4.
- the entire screw is moved by means of likewise speed-controlled rotary drive 5 over the silo bottom.
- the speed control is adjusted so that the degree of filling of this screw by screwing it into the material stored in the silo always ensures the same degree of filling.
- the delivery volume is directly proportional to the speed of the screw, so this discharge system is suitable as a dosage.
- the speed control is the power consumption of the rotatably mounted screw, which is directly proportional to the torque of this screw.
- One or more transport screws 8 transport the amount to the stuffing screws 9.
- the entry system consists of cell wheel 10, slide 11 in front of the screw for further transport and at the same time shut off both in startup or shutdown mode and the presentation of StopfSchnecke 9.
- the system is equipped with a system 12 (see Fig. 3) for applying air as a barrier medium and or inert gas such as N2 or CO2 or steam (the latter medium also as extinguishing and blocking medium) equipped.
- the system consists of the actual StopfSchnecke, in which the material stopper is created for pressure shut-off.
- the screw is designed so that this material plug in the entire speed range, so even with different amounts to be entered Feedstock remains stable.
- This feedstock is fed through the open in the operation gate valve through a smooth, heat-resistant tube directly into the hot fluidized bed.
- the worm has cooling devices 13, 14 for cooling the worm shaft 14 and alternatively the worm helices and the shell 13 of the worm. This is a wave cooling and a jacket cooling.
- gate valve 15 directly between feed screw and carburetor 16, which is closed when the screw is stopped and prevents the back of the inert bed material in the screw.
- This slide is made of heat-resistant material because it is located at the interface of the hot in the carburetor and the cooled screw. By this measure, the reflux is prevented even in the operating phases in which not the registered feedstock itself produces the barrier.
- the level monitoring 18 in this feed line ensures the necessary permanent formation of the material plug for the set on the main control feed throughput.
- the arrangement of rotary valve and gate valve in front of the screw also allows in operation the task of a barrier gas (air or inert gases such as CO2, nitrogen or steam in exceptional cases).
- the slide 11 allows an additional gas-tight barrier.
- the pressure range of the reaction system up to 5 bar ü., Normally 1.5 bar ü controllable.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Screw Conveyors (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006039622A DE102006039622A1 (en) | 2006-08-24 | 2006-08-24 | entry system |
PCT/EP2007/058034 WO2008022895A2 (en) | 2006-08-24 | 2007-08-02 | Input system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2066764A2 true EP2066764A2 (en) | 2009-06-10 |
Family
ID=38924507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07788173A Pending EP2066764A2 (en) | 2006-08-24 | 2007-08-02 | Input system |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090173005A1 (en) |
EP (1) | EP2066764A2 (en) |
DE (1) | DE102006039622A1 (en) |
WO (1) | WO2008022895A2 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008012156A1 (en) * | 2008-03-01 | 2009-09-03 | Karl-Heinz Tetzlaff | Screw conveyor for feeding biomass into a pressure vessel |
DE102008012154A1 (en) * | 2008-03-01 | 2009-09-03 | Karl-Heinz Tetzlaff | Biomass conveyor for feeding into a pressure vessel |
DE102008036734A1 (en) * | 2008-08-07 | 2010-02-18 | Spot Spirit Of Technology Ag | Process and apparatus for the production of energy, DME (dimethyl ether and bio-silica using CO2-neutral biogenic reactive and inert starting materials |
US8465562B2 (en) * | 2009-04-14 | 2013-06-18 | Indiana University Research And Technology Corporation | Scalable biomass reactor and method |
US20100275514A1 (en) * | 2009-04-14 | 2010-11-04 | Packer Engineering, Inc. | Biomass gasification/pyrolysis system and process |
EP2302018A1 (en) | 2009-09-24 | 2011-03-30 | Faramarz Bairamijamal | Method for continuous dry moving of a material for loading a pressurised reactor which is to be partially oxidised |
US8926231B2 (en) * | 2009-09-29 | 2015-01-06 | General Electric Company | Solid fuel transporting system for a gasifier |
WO2011158776A1 (en) * | 2010-06-16 | 2011-12-22 | 株式会社Ihi | Device for supplying material to gasification furnace |
WO2012082026A1 (en) * | 2010-12-13 | 2012-06-21 | Lars Johansson | Method and device comprising two feeding screws for continuously operating a pyrolysis reactor |
DE102011011158A1 (en) | 2011-02-14 | 2012-08-16 | Spirit Of Technology Ag | Preparing gasificationable bulk material from biogenous raw materials comprises delivery and acquisition of the materials dates, comminution of the materials, adjusting the moisture content and compaction of the comminute materials |
CN102287842A (en) * | 2011-08-03 | 2011-12-21 | 无锡锡能锅炉有限公司 | Tempering-preventing feeding device for biomass fuel fired boiler |
US10738249B2 (en) * | 2012-01-30 | 2020-08-11 | Aries Gasification, Llc | Universal feeder for gasification reactors |
US9890706B2 (en) | 2012-12-28 | 2018-02-13 | Phoenix Biopower Ab | Method and plant for transferring energy from biomass raw material to at least one energy user |
WO2014143169A1 (en) | 2013-03-15 | 2014-09-18 | Koenig Mark E | System for processing material for a gasifier |
US10190065B2 (en) | 2013-03-15 | 2019-01-29 | Mark E. Koenig | Feed delivery system and method for gasifier |
AT515749A2 (en) * | 2014-05-13 | 2015-11-15 | Agt Man & Engineering Ag | screw conveyor |
US11512260B2 (en) | 2018-06-11 | 2022-11-29 | Donald Gene Taylor | Pulse detonation shockwave gasifier |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1338114A (en) * | 1971-05-12 | 1973-11-21 | Louise Gmbh Maschbau | Apparatus for emptying or removing bulk material from containers bunkers and the like in which a positive or negative pressure prevails with respect to atmosphere pressure |
US4073242A (en) * | 1975-12-29 | 1978-02-14 | Thiokol Corporation | Sewage sludge disposal |
US4378208A (en) * | 1980-01-18 | 1983-03-29 | University Of Kentucky Research Foundation | Biomass gasifier combustor |
US4342269A (en) * | 1980-11-17 | 1982-08-03 | Hoskinson Gordon H | Material treating apparatus utilizing an auger having an internal air supply and heat transfer system |
US4598670A (en) * | 1985-07-03 | 1986-07-08 | Foster Wheeler Energy Corporation | Solid fuel feed system for a boiler |
NL8700945A (en) * | 1987-04-21 | 1988-11-16 | F L Halfhide Engineering | BURNER. |
US5044837A (en) * | 1989-09-14 | 1991-09-03 | Phillips Petroleum Company | Method and apparatus for continuously feeding particulate solid material into a pressurized system without pressure loss |
SE469536B (en) * | 1991-12-05 | 1993-07-19 | Vattenfall Energisyst Ab | SEAT AND DEVICE FOR INPUT OF FRAGMENTED MATERIAL TO PRESSURE CONTAINERS |
CZ289723B6 (en) * | 1992-06-28 | 2002-03-13 | Ormat Industries Ltd. | Process for preparing combustible gases from solid fuel and apparatus for making the same |
SE503502C2 (en) * | 1994-10-21 | 1996-06-24 | Regalco Ab | Feed device contg. moist material, e.g. brown coal, bagasses, sludge, pulp or plant waste |
TW496795B (en) * | 2000-10-05 | 2002-08-01 | E E R Env Energy Resrc Israel | System and method for removing blockages in a waste converting apparatus |
PL205563B1 (en) * | 2001-08-11 | 2010-05-31 | Inbicon As | Method for transfer of particulate solid products between zones of different pressure |
JP3801539B2 (en) * | 2002-07-17 | 2006-07-26 | 三菱重工業株式会社 | Powder and particle feeder |
-
2006
- 2006-08-24 DE DE102006039622A patent/DE102006039622A1/en not_active Withdrawn
-
2007
- 2007-08-02 EP EP07788173A patent/EP2066764A2/en active Pending
- 2007-08-02 WO PCT/EP2007/058034 patent/WO2008022895A2/en active Application Filing
-
2009
- 2009-02-23 US US12/390,508 patent/US20090173005A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2008022895A3 * |
Also Published As
Publication number | Publication date |
---|---|
US20090173005A1 (en) | 2009-07-09 |
WO2008022895A2 (en) | 2008-02-28 |
WO2008022895A3 (en) | 2008-04-10 |
DE102006039622A1 (en) | 2008-02-28 |
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Legal Events
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DAX | Request for extension of the european patent (deleted) | ||
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Owner name: SPIRIT OF TECHNOLOGY AKTIENGESELLSCHAFT |
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