WO2001096501A1 - Procede et appareil de pyrolyse et de gazeification - Google Patents

Procede et appareil de pyrolyse et de gazeification Download PDF

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Publication number
WO2001096501A1
WO2001096501A1 PCT/GB2001/002692 GB0102692W WO0196501A1 WO 2001096501 A1 WO2001096501 A1 WO 2001096501A1 GB 0102692 W GB0102692 W GB 0102692W WO 0196501 A1 WO0196501 A1 WO 0196501A1
Authority
WO
WIPO (PCT)
Prior art keywords
stream
pyrolysis
gasification
gasifying agent
streams
Prior art date
Application number
PCT/GB2001/002692
Other languages
English (en)
Inventor
John Ernest Elsom Sharpe
Original Assignee
Compact Power Limited
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 Compact Power Limited filed Critical Compact Power Limited
Priority to EP01940753A priority Critical patent/EP1292655A1/fr
Priority to AU2001274255A priority patent/AU2001274255A1/en
Publication of WO2001096501A1 publication Critical patent/WO2001096501A1/fr

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
    • C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
    • C10J3/60—Processes
    • C10J3/64—Processes with decomposition of the distillation products
    • C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
    • 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
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/80—Other features with arrangements for preheating the blast or the water vapour
    • 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
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
    • 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
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1876—Heat exchange between at least two process streams with one stream being combustion gas
    • 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
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1892—Heat exchange between at least two process streams with one stream being water/steam

Definitions

  • This invention relates to a pyrolysis and gasification process and apparatus.
  • waste material is subjected to a two stage process in which the waste material is firstly pyrolysed at a relatively low temperature in the substantial absence of air or oxygen to yield a gaseous product and a solid product, the solid product being thereafter in a separate step and at a different part of the apparatus being subjected to a high temperature gasification step by reaction with a gasifying agent, which may comprise air, steam and/or recycled flue gas, so as to yield a second gaseous product which is combined with the pyrolysis gas and conducted to a secondary combustion chamber when it is combusted to yield heat energy, a part of which is used to effect the aforementioned pyrolysis step.
  • a gasifying agent which may comprise air, steam and/or recycled flue gas
  • a particularly useful gasifying agent or constituent of the gasifying agent, to use in the gasifying step of such processes is steam because it yields when reacted with carbonaceous materials hydrogen and carbon monoxide which has high calorific value and which therefore can produce a large amount of heat energy.
  • steam there is a problem in using steam in such a waste disposal process in that the reduction of steam is a highly endothermic process and can only occur at high temperature (in excess of 850°C) . This means that when steam is used as the gasifying agent it must be introduced into the gasifying chamber at a temperature substantially higher than 850°C.
  • a method of adjusting the temperature of a gasifying agent comprising steam used in the gasification step of a two-stage pyrolysis and gasification process for converting solid carbonaceous materials into heat energy, which method comprises dividing a supply of a gasifying agent which consists of or comprises steam into two streams hereinafter referred to as a first stream and a second stream; passing only said first stream through a conduit which is heated by the secondary combustion of the off gases from., pyrolysis and gasification; and recombining said first and second streams before the combined stream is passed into the zone in which gasification takes place; the proportion of said first and second streams being adjusted so as to achieve a desired combined stream temperature' prior to entry into the gasification zone.
  • the invention also provides a pyrolysis and gasification process for converting solid carbonaceous waste materials into heat energy when comprising a method of adjusting the temperature of the stream of gasifying agent as defined above.
  • the invention provides an apparatus for performing the pyrolysis and gasification process as defined above which comprises: one or more gasification chambers; one or more pyrolysis tubes, said one or more pyrolysis tubes being disposed within a pyrolysis chamber heated by the combustion of off gases from the gasification chamber (s) and pyrolysis tube(s); valve means for splitting a stream of gasifying agent consisting of or comprising stream into two streams, a first stream and a second stream; a first conduit provided in said pyrolysis chamber for conducting said first stream of gasifying agent through said pyrolysis chamber said first conduit permitting heat exchange to said first stream of gasifying agent; a second conduit for conducting said second stream of gasifying agent along a route by-passing said pyrolysis chamber; and means for recombining said first and second conduits prior to connection with said one or more gasification chambers.
  • the pyrolysed solid is ejected at the left hand end of the pyrolysis tube into a gasification chamber 3 in which the bed 4 of the pyrolysed solid is treated at high temperature with gasifying agent admitted through pipe 5.
  • Tap 6 permits exhausted process material to be removed from the bottom of the gasification chamber.
  • the chamber 2 will usually contain several pyrolysis tubes, but only one is shown in this diagram, for simplicity) .
  • the novel arrangement of the present invention is shown in the part of the apparatus which is used to feed the* gasifying chamber with gasifying agent.
  • a supply of gasifying agent which comprises steam is piped in at 8 and two conduits are provided.
  • the first conduit 9 passes through the pyrolysis chamber and is arranged as a heat exchanger, which can be in the form of a sinuous pipe as shown, somewhat pronounced of the tubing of a trombone.
  • the second conduit 10 by-passes the pyrolysis chamber.
  • the proportions of the streams of gasifying agent passing through conduits 9 and 10 can be adjusted using valves or dampers 11 and 12. Conduits 9 and 10 are recombined at junction 13 prior to the inlet pipe 5.
  • the flow of gasifying agent and the valves or dampers 11 and 12 are controlled in conventional manner by means of conventional temperature measurement and electronic controls so that the proportions of gasifying agent passing through the conduits 9 and 10 result in the temperature of the gasifying agent in pipe 5 being at optimum for the gasification process and the overall process.

Abstract

L'invention concerne un procédé de réglage de la température d'un agent de gazéification comprenant la vapeur utilisée à l'étape de gazéification d'un processus de pyrolyse et de gazéification en deux étapes pour convertir des matériaux carbonés solides en énergie thermique. Ce procédé consiste à: diviser un agent de gazéification conduit à l'appareil utilisé, lequel est constitué de vapeur ou comprend de la vapeur, en deux courants, appelés ci-dessous premier courant et second courant; faire passer seulement le premier courant par une conduite qui est chauffée par la combustion secondaire des effluents gazeux résultant de la pyrolyse et de la gazéification; et recombiner le premier courant et le second courant, puis faire entrer le courant combiné dans la zone où se fait la gazéification, la proportion du premier courant et du second courant étant réglée de telle sorte que l'on obtienne une température de courant combiné désirée, avant l'entrée de celui-ci dans la zone de gazéification.
PCT/GB2001/002692 2000-06-15 2001-06-15 Procede et appareil de pyrolyse et de gazeification WO2001096501A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP01940753A EP1292655A1 (fr) 2000-06-15 2001-06-15 Procede et appareil de pyrolyse et de gazeification
AU2001274255A AU2001274255A1 (en) 2000-06-15 2001-06-15 Pyrolysis and gasification process and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0014688.6 2000-06-15
GB0014688A GB2363388A (en) 2000-06-15 2000-06-15 Pyrolysis and gasification process and apparatus

Publications (1)

Publication Number Publication Date
WO2001096501A1 true WO2001096501A1 (fr) 2001-12-20

Family

ID=9893747

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/002692 WO2001096501A1 (fr) 2000-06-15 2001-06-15 Procede et appareil de pyrolyse et de gazeification

Country Status (4)

Country Link
EP (1) EP1292655A1 (fr)
AU (1) AU2001274255A1 (fr)
GB (1) GB2363388A (fr)
WO (1) WO2001096501A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004221A1 (de) * 2007-01-27 2008-09-25 Robert Bosch Gmbh Vorrichtung und Verfahren zur thermischen Umsetzung von Pellets oder Holzschnitzeln
DE10224018B4 (de) * 2002-05-28 2015-10-08 Bioenergy Systems N.V. Vorrichtung und Verfahren zur Energiegewinnung aus Bioenergieträgern und anderen organischen Stoffen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4320820A1 (de) * 1993-06-23 1995-01-05 Basf Ag Verfahren zur Umsetzung von in Carbonsäureestern gelösten Carbonsäurechloriden
DE102005046347B4 (de) * 2005-09-16 2017-08-31 Bioenergy Systems N.V. Vorrichtung und Verfahren zur Energiegewinnung aus Bioenergieträgern und anderen organischen Stoffen
IT1399655B1 (it) * 2010-04-26 2013-04-26 Bertei Processo ed apparato per la gassificazione di materiali organici
EP2481788A1 (fr) * 2011-02-01 2012-08-01 Ars Energy OÜ Procédé de production de carburant de biomasse à partir de produits carbonés

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2002069C1 (ru) * 1992-05-13 1993-10-30 Сергей Александрович Масной Способ эксплуатации паротурбинной установки
WO1997015641A1 (fr) * 1995-10-26 1997-05-01 Compact Power Limited Production d'energie thermique a partir de combustibles carbones solides
JPH09126409A (ja) * 1995-11-01 1997-05-16 Babcock Hitachi Kk 給水加熱器の温度制御方法およびその装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822862C2 (de) * 1978-05-26 1984-01-05 Ruhrchemie Ag, 4200 Oberhausen Verfahren zur Gewinnung wasserstoff- und kohlenmonoxidhaltiger Gasgemische durch Vergasung kohlenstoffhaltiger, aschebildender Brennstoffe
GB9410470D0 (en) * 1994-05-25 1994-07-13 Compact Power Ltd A combined pyrolysing gasifier and method of its operation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2002069C1 (ru) * 1992-05-13 1993-10-30 Сергей Александрович Масной Способ эксплуатации паротурбинной установки
WO1997015641A1 (fr) * 1995-10-26 1997-05-01 Compact Power Limited Production d'energie thermique a partir de combustibles carbones solides
JPH09126409A (ja) * 1995-11-01 1997-05-16 Babcock Hitachi Kk 給水加熱器の温度制御方法およびその装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 199409, Derwent World Patents Index; Class Q51, AN 1994-073069, XP002176031 *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09 30 September 1997 (1997-09-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10224018B4 (de) * 2002-05-28 2015-10-08 Bioenergy Systems N.V. Vorrichtung und Verfahren zur Energiegewinnung aus Bioenergieträgern und anderen organischen Stoffen
DE102007004221A1 (de) * 2007-01-27 2008-09-25 Robert Bosch Gmbh Vorrichtung und Verfahren zur thermischen Umsetzung von Pellets oder Holzschnitzeln

Also Published As

Publication number Publication date
GB2363388A (en) 2001-12-19
GB0014688D0 (en) 2000-08-09
AU2001274255A1 (en) 2001-12-24
EP1292655A1 (fr) 2003-03-19

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