EP2066764A2 - Système de chargement - Google Patents

Système de chargement

Info

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
Application number
EP07788173A
Other languages
German (de)
English (en)
Inventor
Oliver Neumann
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.)
SPIRIT OF TECHNOLOGY AKTIENGESELLSCHAFT
Original Assignee
Spot Spirit Of Technology AG
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 Spot Spirit Of Technology AG filed Critical Spot Spirit Of Technology AG
Publication of EP2066764A2 publication Critical patent/EP2066764A2/fr
Pending legal-status Critical Current

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)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Screw Conveyors (AREA)

Abstract

Système de chargement pour introduire une biomasse dans un gazéificateur, comprenant : une vis sans fin (9) de transport de matière qui refoule la biomasse dans le gazéificateur. La vis sans fin est conçue de telle sorte que la biomasse est comprimée, d'une part afin de la transporter à l'encontre d'une pression dans le gazéificateur et d'autre part afin de laisser le gaz et le matériau de lit dans le gazéificateur. Ce système comprend également une vanne d'isolement (16, 11) qui est limitrophe de la vis sans fin de transport de matière et qui se ferme lors de l'immobilisation de la vis sans fin, de sorte que la chaleur, la vapeur et le gaz ne peuvent pas s'échapper.
EP07788173A 2006-08-24 2007-08-02 Système de chargement Pending EP2066764A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006039622A DE102006039622A1 (de) 2006-08-24 2006-08-24 Eintragssystem
PCT/EP2007/058034 WO2008022895A2 (fr) 2006-08-24 2007-08-02 Système de chargement

Publications (1)

Publication Number Publication Date
EP2066764A2 true EP2066764A2 (fr) 2009-06-10

Family

ID=38924507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07788173A Pending EP2066764A2 (fr) 2006-08-24 2007-08-02 Système de chargement

Country Status (4)

Country Link
US (1) US20090173005A1 (fr)
EP (1) EP2066764A2 (fr)
DE (1) DE102006039622A1 (fr)
WO (1) WO2008022895A2 (fr)

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DE102008012156A1 (de) * 2008-03-01 2009-09-03 Karl-Heinz Tetzlaff Schneckenförderer zur Einspeisung von Biomasse in einen Druckbehälter
DE102008012154A1 (de) 2008-03-01 2009-09-03 Karl-Heinz Tetzlaff Biomasse-Förderanlage zur Einspeisung in einen Druckbehälter
DE102008036734A1 (de) * 2008-08-07 2010-02-18 Spot Spirit Of Technology Ag Verfahren und Vorrichtung zur Herstellung von Energie, DME (Dimethylether und Bio-Silica unter Einsatz von CO2-neutralen biogenen reaktiven und reaktionsträgen Einsatzstoffen
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 (fr) * 2009-09-24 2011-03-30 Faramarz Bairamijamal Procédé de transport continu à sec d'un matériau devant être oxydé partiellement pour le revêtement d'un réacteur mis sous pression
US8926231B2 (en) * 2009-09-29 2015-01-06 General Electric Company Solid fuel transporting system for a gasifier
US9192900B2 (en) * 2010-06-16 2015-11-24 Ihi Corporation Gasification furnace raw material supplying apparatus
WO2012082026A1 (fr) * 2010-12-13 2012-06-21 Lars Johansson Procédé et dispositif comprenant deux vis d'alimentation pour l'exploitation en continu d'un réacteur de pyrolyse
DE102011011158A1 (de) 2011-02-14 2012-08-16 Spirit Of Technology Ag Verfahren zur Herrstellung von Schüttgut aus Biomasse
CN102287842A (zh) * 2011-08-03 2011-12-21 无锡锡能锅炉有限公司 燃生物质燃料锅炉防止回火的给料装置
US10738249B2 (en) * 2012-01-30 2020-08-11 Aries Gasification, Llc Universal feeder for gasification reactors
WO2014104969A1 (fr) * 2012-12-28 2014-07-03 Euroturbine Ab Procédé et centrale permettant de transférer de l'énergie provenant d'une matière première de biomasse vers au moins un utilisateur d'énergie
US9550630B2 (en) 2013-03-15 2017-01-24 Mark E. Koenig 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 (de) * 2014-05-13 2015-11-15 Agt Man & Engineering Ag Schneckenförderer
US11512260B2 (en) 2018-06-11 2022-11-29 Donald Gene Taylor Pulse detonation shockwave gasifier
US12510295B2 (en) 2019-06-18 2025-12-30 Aries Clean Technologies Llc Inline particle size control for rotary drum drier recycle material
EP3986987A4 (fr) * 2019-06-18 2023-07-19 Aries Gasification, LLC Dispositif d'alimentation universel pour un réacteur de gazéification

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Also Published As

Publication number Publication date
WO2008022895A2 (fr) 2008-02-28
US20090173005A1 (en) 2009-07-09
WO2008022895A3 (fr) 2008-04-10
DE102006039622A1 (de) 2008-02-28

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