WO2007112759A1 - Procédé de thermotraitement à basse température de blocs de combustible solide, et cornue verticale pour mettre en œuvre ledit procédé - Google Patents

Procédé de thermotraitement à basse température de blocs de combustible solide, et cornue verticale pour mettre en œuvre ledit procédé Download PDF

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Publication number
WO2007112759A1
WO2007112759A1 PCT/EE2007/000006 EE2007000006W WO2007112759A1 WO 2007112759 A1 WO2007112759 A1 WO 2007112759A1 EE 2007000006 W EE2007000006 W EE 2007000006W WO 2007112759 A1 WO2007112759 A1 WO 2007112759A1
Authority
WO
WIPO (PCT)
Prior art keywords
retort
vertical
retorting
solid fuel
shell
Prior art date
Application number
PCT/EE2007/000006
Other languages
English (en)
Inventor
Jüri SOONE
Svjatoslav Doilov
Nikolai Petrovits
Jevgeni Surov
Original Assignee
Tallinn University Of Technology
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 Tallinn University Of Technology filed Critical Tallinn University Of Technology
Publication of WO2007112759A1 publication Critical patent/WO2007112759A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B1/00—Retorts
    • C10B1/02—Stationary retorts
    • C10B1/04—Vertical retorts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
    • C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
    • C10B49/04—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated
    • C10B49/06—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge while moving the solid material to be treated according to the moving bed type
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/06—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of oil shale and/or or bituminous rocks
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
    • C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
    • C10G53/04—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one extraction step
    • C10G53/06—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one extraction step including only extraction steps, e.g. deasphalting by solvent treatment followed by extraction of aromatics

Definitions

  • the invention belongs to the field of fuel industry and is intended for thermal treatment of solid fuel, e.g. oil shale or brown coal, in a vertical retort for oil and gas production.
  • solid fuel e.g. oil shale or brown coal
  • the main field of application of the invention is oil shale processing industry.
  • Oil shale is charged into the retort by a charging device situated in the upper part of the retort and is moving downwards by gravity with speed controlled by the speed of retorting residue discharge from the lower part of the retort.
  • a charging device situated in the upper part of the retort and is moving downwards by gravity with speed controlled by the speed of retorting residue discharge from the lower part of the retort.
  • gaseous heat carrier formed by combustion of a part of retorting gas in furnaces intended for that purpose.
  • waste residue in the lower part of the retort is additionally treated with cooled gas for better use of organic matter remaining in retorted residue.
  • Solid fuel thermal treatment at low temperatures of 500 to 550 °C is aimed at maximum oil yield.
  • Solid fuel thermal treatment at high temperatures up to 800 0 C results in smaller oil yields but coke and gas production is larger.
  • the drawback of the known process consists in direct contact between fuel and high temperature cross-flow of heat carrier and ensuing partial high temperature treatment of fuel.
  • the result is excessive heating of evolved oil vapors in the retorting chamber and secondary pyrolysis of hydrocarbons that causes diminished oil yield in comparison with low- temperature process.
  • the purpose of the present invention is to enhance productivity and efficiency of oil shale organic matter conversion into oil products and to diminish energy consumption in the process.
  • the goal is achieved by using low-temperature treatment method for retorting lump oil shale in a vertical retort.
  • the retort consists of a vertical shell, a fuel charging device in the upper part of the shell along the vertical axis of the retort, a retorting residue discharging device in the lower part of the shell, burners placed in the shell walls, equipment for introduction of cooling gas into the lower part of the retort, and piping for gas- vapor mixture withdrawal.
  • the retorting process is conducted completely at low-temperature conditions up to 600 °C.
  • high-temperature heat carrier at up to 800 °C is introduced into the retort, it first meets retorting residue and in the course of the contact remaining in the residue hydrocarbons are subjected to additional cracking.
  • the retort is provided with internal circular chamber in its lower part for uniform distribution of heat carrier, and the chamber forms a constriction in the cross section of the retort.
  • the effectiveness of the invention is achieved because hot heat carrier with temperature up to 800 °C does not come into direct contact with oil shale, but with retorting residue. The remaining in the residue hydrocarbons are subjected to additional cracking, their content in the residue diminishes and better utilization of organic matter of oil shale is achieved. At the same time heat carrier cools down to 600 °C and retorting of oil shale proceeds at lower temperatures up to 600 °C, so conditions for low-temperature thermal treatment of oil shale are met. That way secondary pyrolysis reactions are avoided and maximum oil yield is achieved at given energy consumption in the process.
  • Fig 1 depicts a principal scheme of technological zones in the retorting chamber with high temperature cross-flow of heat carrier
  • Fig 2 depicts a principal scheme of the retorting chamber
  • Fig 3 depicts a realization scheme of the method.
  • Fig 1 are shown principal profile of the retorting chamber of the retort with high temperature cross-flow of heat carrier and its main process zones: drying and preliminary heating zone 1, retorting zone 2 and high temperature zone 3.
  • Fig 2 are shown principal profile of the retorting chamber of the retort and its main process zones: drying and preliminary heating zone 1 and retorting zone 2.
  • Lump solid fuel low-temperature thermal treatment method is realized in a vertical retort (Fig 3) that consists of a vertical shell 1, a fuel charging device 7 placed in the upper part of the shell along the vertical axis of the retort, a circular chamber 2 for heat carrier introduction that forms a constriction in the middle part of the retort cross section, burners 3 for heat carrier preparation, equipment for introduction of cooling gas 4, a retorting residue discharging device 5, and piping 6 for gas- vapor mixture withdrawal
  • Solid fuel is charged into the retort by the charging device 7 situated in the upper part of the retort, and fuel is moving downwards by gravity with speed controlled by the speed of retorting residue discharge from the lower part of the retort. While moving downwards, fuel is heated by gaseous heat carrier formed by combustion of a part of retorting gas in burners 3 intended for that purpose. Thus formed heat carrier with temperature 800 0 C is introduced into the bed of retorting residue from the circular chamber 2 and then moves upwards.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

On décrit un procédé de thermotraitement de combustible solide (p. ex. du schiste bitumeux ou de la lignite), dans une cornue verticale, destiné à la production de pétrole ou de gaz. Le procédé est mis en œuvre dans une cornue verticale, où le combustible solide est séché, le thermotraitement effectué à températures élevées pouvant atteindre 800°C, et le processus de combustion en cornue réalisé complètement dans des conditions de basse température inférieures à 600°C. Le vecteur thermique à haute température pénétrant dans la cornue va au contact de résidu solide de procédé, de telle sorte que les hydrocarbures restant dans le résidu solide sont soumis à un craquage supplémentaire lors du contact. Pour la mise en œuvre du procédé, la cornue contient, dans sa partie inférieure, une chambre circulaire intérieure assurant une distribution homogène du vecteur thermique, ladite chambre circulaire étant située de manière à former un étranglement dans le profil de la cornue.
PCT/EE2007/000006 2006-04-06 2007-04-06 Procédé de thermotraitement à basse température de blocs de combustible solide, et cornue verticale pour mettre en œuvre ledit procédé WO2007112759A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EEP200600013 2006-04-06
EEP200600013A EE05409B1 (et) 2006-04-06 2006-04-06 Tkilise tahke ktuse madalatemperatuurilise termot””tlemise meetod ja vertikaalne retort selle meetodi realiseerimiseks

Publications (1)

Publication Number Publication Date
WO2007112759A1 true WO2007112759A1 (fr) 2007-10-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EE2007/000006 WO2007112759A1 (fr) 2006-04-06 2007-04-06 Procédé de thermotraitement à basse température de blocs de combustible solide, et cornue verticale pour mettre en œuvre ledit procédé

Country Status (2)

Country Link
EE (1) EE05409B1 (fr)
WO (1) WO2007112759A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101806451A (zh) * 2010-04-13 2010-08-18 中国科学院力学研究所 一种分段高温燃烧循环流化床系统及燃烧方法
CN103013544A (zh) * 2013-01-07 2013-04-03 中煤能源黑龙江煤化工有限公司 一种煤、油页岩的隧道管薄层干馏装置及工艺方法
CN105602595A (zh) * 2015-12-29 2016-05-25 龙口矿业集团有限公司 一种对油页岩进行干馏的新型干馏炉及其加工工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE435517C (de) * 1922-12-24 1926-10-14 Erdoel Akt Ges Fa Deutsche Schwelerei mit unmittelbarer Innenheizung
EE04401B1 (et) * 2001-06-27 2004-12-15 Tallinna Tehnikaülikool Ringuttekambriga vertikaalne retort tükilise tahke kütuse termiliseks töötlemiseks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE435517C (de) * 1922-12-24 1926-10-14 Erdoel Akt Ges Fa Deutsche Schwelerei mit unmittelbarer Innenheizung
EE04401B1 (et) * 2001-06-27 2004-12-15 Tallinna Tehnikaülikool Ringuttekambriga vertikaalne retort tükilise tahke kütuse termiliseks töötlemiseks

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J. SOONE, S. DOILOV: "Sustainable utilization of oil shale resources and comparison of contempary technologies used for oil shale processing", OIL SHALE, vol. 20, no. 3, 2003, pages 311-323, XP002437618, Retrieved from the Internet <URL:http://www.kirj.ee/oilshale/5_soone_2003_3s.pdf> [retrieved on 20070613] *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101806451A (zh) * 2010-04-13 2010-08-18 中国科学院力学研究所 一种分段高温燃烧循环流化床系统及燃烧方法
CN101806451B (zh) * 2010-04-13 2011-06-08 中国科学院力学研究所 一种分段高温燃烧循环流化床系统及燃烧方法
CN103013544A (zh) * 2013-01-07 2013-04-03 中煤能源黑龙江煤化工有限公司 一种煤、油页岩的隧道管薄层干馏装置及工艺方法
CN105602595A (zh) * 2015-12-29 2016-05-25 龙口矿业集团有限公司 一种对油页岩进行干馏的新型干馏炉及其加工工艺

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Publication number Publication date
EE200600013A (et) 2007-12-17
EE05409B1 (et) 2011-04-15

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