EP0022018A1 - Verfahren und Vorrichtung zur Herstellung von Koks oder Halbkoks - Google Patents

Verfahren und Vorrichtung zur Herstellung von Koks oder Halbkoks Download PDF

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Publication number
EP0022018A1
EP0022018A1 EP80400943A EP80400943A EP0022018A1 EP 0022018 A1 EP0022018 A1 EP 0022018A1 EP 80400943 A EP80400943 A EP 80400943A EP 80400943 A EP80400943 A EP 80400943A EP 0022018 A1 EP0022018 A1 EP 0022018A1
Authority
EP
European Patent Office
Prior art keywords
coke
semi
oven
fines
rotary kiln
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.)
Granted
Application number
EP80400943A
Other languages
English (en)
French (fr)
Other versions
EP0022018B1 (de
Inventor
Gustave Leyendecker
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.)
Houilleres du Bassin de Lorraine
Original Assignee
Houilleres du Bassin de Lorraine
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 Houilleres du Bassin de Lorraine filed Critical Houilleres du Bassin de Lorraine
Priority to AT80400943T priority Critical patent/ATE2439T1/de
Publication of EP0022018A1 publication Critical patent/EP0022018A1/de
Application granted granted Critical
Publication of EP0022018B1 publication Critical patent/EP0022018B1/de
Expired legal-status Critical Current

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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
    • 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
    • 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
    • C10B1/10—Rotary retorts

Definitions

  • the subject of the invention is a process for the continuous production of coke or semi-coke by means of a rotary kiln.
  • This process is effective for obtaining more or less reactive cokes with a low volatile matter content, but does not allow, without significant modifications, to obtain cokes or semi-cokes baked at relatively low temperature, for example below 600 ° C. C and still having a fairly high content of volatile matter, for example up to 20%.
  • Detels cokes or semi-cokes can have many direct or indirect applications. They can be recovered as they are for electrometallurgy, electrochemistry, gasification. They can be used as an adjunct in the manufacture of molded coke or in carbonized coke pastes with charging processes using preheating and / or compacting.
  • the object of the invention is to propose a new process and a new installation making it possible to obtain, with good adjustment flexibility, a wide range of cokes differentiated by their volatile matter contents, for example in the range from 1 to 20% volatile matter.
  • Another aim is to avoid the combustion of by-products in situ, in order to recover a quantity maximum tar and gas.
  • the hot gas generator may for example be a burner installed at the end of the rotary kiln, as is known per se.
  • the heat output of the hot gas generator is controlled by the difference between the temperature of the coke or semi-coke at the end of the oven and a set cooking temperature. In this way, carbonization is obtained at the set temperature, which, indirectly, makes it possible to obtain the desired content of volatile matter. Controlling the carbonization temperature is essential according to the invention.
  • the overpressure in the oven enclosure can be adjusted by action on a valve located upstream of the production gas dewatering fan.
  • a finer setting can be obtained in addition by injecting an auxiliary ballast fluid, such as steam and / or combustion fumes from the lean gas of the recycled carbonization and / or nitrogen, directly into the rotating oven.
  • the coke or semi-coke is quenched by introduction into an inclined rotating tube fitted with water sprayers and the coke or semi-coke is quenched immediately after its extraction from the rotary kiln.
  • the coke or semi-coke extinguishing device comprises means for spraying water.
  • the extinguishing device is an inclined rotating tube and that said rotating tube is open at its discharge end.
  • An installation according to the invention for implementing the method according to the invention comprises a tubular rotary oven 1, sealed and inclined by 2 ° on the horizontal downwards from right to left in the figure.
  • the rotary kiln communicates by rotary joints 2 and 3 with baffles respectively with a feed cover 4 and a heating cover 5.
  • a feed hopper 6 makes it possible to bring the coal upstream of the oven by a inclined chute 7 by means of a honeycomb distributor 8.
  • the hot gases of the rotary kiln are extracted from the feed cover 4, the walls of which are rinsed with water to avoid any fouling, by a pipe 9 to be brought to a first washer 10, then to a second washer 11, in which are arranged batteries of water sprayers 12.
  • the gases are sucked in by a dewatering fan 13 and sent to a pipe 14 provided with a register 1 5 making it possible to send these gases totally or partially into a storage capacity and / or into a recycling pipe 16.
  • the water for washing the gases is sent to a decanter 17 communicating with an overflow tank 18, or a. pump 19 recycles them to sprayers 12.
  • the heating cover 5 opens onto a chute 20 opening directly into the cover 21 of a rotating extinguishing tube 22 inclined 2 ° down from left to right, in the figure.
  • This tube 22 is provided with a ramp 23 of water sprayers.
  • the tube 22 is open at its lower or downstream end and the quenched coke in the tube can fall on a screen 24 whose passers-by falls on a conveyor belt 25.
  • the heating of the rotary kiln 1 is provided by a burner 26 supplied by a line 27 of liquid or gaseous fuel and an air line 28.
  • a regulator 29 provides a stoichiometric adjustment of the proportion of fuel and air or, at will , a depleted air setting.
  • the fuel flow rate is also adjusted by the regulator 29 controlled, by a circuit 30, at a set temperature to be observed in the mass of incandescent coke or semi-coke, the true temperature being measured by a thermometric probe 31 placed in the oven in the vicinity of the cover 5. It is also possible to introduce water vapor into the oven through a rod 32 opening into the cover 5.
  • the water vapor flow rate can be adjusted by a controlled pressure switch 33, by a circuit 34 , at a set pressure to be observed in the actual enclosure of the oven, the true pressure being measured by a pressure sensor 35 placed in the oven at an upstream point, for example.
  • the hot gases recycled through the line 16 can be reintroduced into the burner 26, either directly or by mixing with the fuel supplied by the line 27 if this fuel is gaseous.
  • the oven is sealed by injections of water vapor by means of the injectors 36 in the rotary joints 2 and 3.
  • the pressure sensor 35 is used to regulate by a logic circuit 37 the vacuum created by the dewatering fan 13, this logic circuit also being able to open or close a bypass valve 38 and / or regulate a draft register 39.
  • the coal is brought into the carbonization oven via the hopper 6 provided with a protective screen and the anti-jamming honeycomb distributor 8.
  • This device makes it possible to supply the installation independently of the rotation speed and the slope of the rotary kiln 1.
  • the coal by traversing the rotary furnace 1 of carbonization, loses its volatile matter thanks to the contribution of calories supplied by the burner 26 operating in stoichiometry.
  • the rotary carbonization oven 1 operates under slight overpressure ( ⁇ 10 Pa), this in order to avoid parasitic air inlets liable to degrade the quality of the gas produced by dilution or combustion of volatile materials.
  • the baffle seals 2 and 3 and steam injection 36 fitted to the heating and supply hoods of the oven thus prevent the discharge of tarry gases towards the outside.
  • Steam injection ducts can be used to artificially increase the pressure.
  • the coke flows freely between tubes 1 and 2, the pressure difference between carbonization tube 1 and extinguishing tube 22 is less than 10 Pa.
  • a hot coke guard also makes it possible to limit ironing.
  • the incandescent coke flows, via the chute 20 which is broadly dimensioned and sufficiently sloping to avoid any accidental blockage by agglomerates, in the quenching tube 22 where the coke is quenched by water spraying.
  • the extinction is favored by a sweeping with natural air of the extinguishing tube by the effect of air call from the sprayers. It is known, in fact, that to obtain a good extinction of a semi-coke, it is advisable that during its cooling it fixes a sufficient quantity of oxygen.
  • the production gas passes, as has been said, in the supply hood 4, the walls of which, to avoid any fouling, is rinsed with water, then in a series of washers 10, 11, where it undergoes watering. . Almost all of the tars are thus trapped and recovered at the base in the decanter 17.
  • the means of the invention therefore make it possible to control the carbonization temperature which is essential, due to the risks of runaway well known in the manufacture of semi-coke or reactive coke.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Coke Industry (AREA)
  • Furnace Details (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Fertilizers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Traffic Control Systems (AREA)
  • Cookers (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Industrial Gases (AREA)
EP80400943A 1979-06-25 1980-06-24 Verfahren und Vorrichtung zur Herstellung von Koks oder Halbkoks Expired EP0022018B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400943T ATE2439T1 (de) 1979-06-25 1980-06-24 Verfahren und vorrichtung zur herstellung von koks oder halbkoks.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7916233 1979-06-25
FR7916233A FR2459824A1 (fr) 1979-06-25 1979-06-25 Procede et installation de fabrication de coke ou semi-coke

Publications (2)

Publication Number Publication Date
EP0022018A1 true EP0022018A1 (de) 1981-01-07
EP0022018B1 EP0022018B1 (de) 1983-02-09

Family

ID=9227039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400943A Expired EP0022018B1 (de) 1979-06-25 1980-06-24 Verfahren und Vorrichtung zur Herstellung von Koks oder Halbkoks

Country Status (10)

Country Link
US (1) US4366026A (de)
EP (1) EP0022018B1 (de)
JP (1) JPS5645980A (de)
AT (1) ATE2439T1 (de)
BR (1) BR8003929A (de)
DE (1) DE3061892D1 (de)
DK (1) DK160366C (de)
FR (1) FR2459824A1 (de)
NO (1) NO150723C (de)
YU (1) YU41719B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656326A1 (fr) * 1989-12-22 1991-06-28 Pillard Chauffage Procedes, dispositifs et fours tournants pour fabriquer en continu du charbon de bois riche en carbone.
RU2119531C1 (ru) * 1995-10-09 1998-09-27 Акционерное общество открытого типа Челябинский электрометаллургический комбинат Способ получения термоантрацита во вращающейся трубчатой печи
RU2481386C2 (ru) * 2008-10-08 2013-05-10 Сергей Петрович Хмеленко Способ непрерывной термохимической переработки различных видов углеродсодержащего сырья

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8801377D0 (sv) * 1988-04-14 1988-04-14 Productcontrol Ltd Foredling av organiskt material
US5707592A (en) * 1991-07-18 1998-01-13 Someus; Edward Method and apparatus for treatment of waste materials including nuclear contaminated materials
DE4321676C2 (de) * 1992-07-14 1995-11-16 Bergwerksverband Gmbh Verfahren und Vorrichtung zur Regelung des Gasdruckes einer Koksofenkammer
US7247368B1 (en) * 2001-10-12 2007-07-24 Touchstone Research Laboratory, Ltd. Stealth foam and production method
WO2008082967A1 (en) * 2006-12-26 2008-07-10 Nucor Corporation Pyrolyzer furnace apparatus and method for operation thereof
US9045693B2 (en) 2006-12-26 2015-06-02 Nucor Corporation Pyrolyzer furnace apparatus and method for operation thereof
WO2008112306A1 (en) * 2007-03-14 2008-09-18 Tucker Richard D Pyrolysis systems, methods, and resultants derived therefrom
US9604192B2 (en) 2007-03-14 2017-03-28 Richard D. TUCKER Pyrolysis and gasification systems, methods, and resultants derived therefrom
CN101734657B (zh) * 2009-12-15 2012-05-02 北京大学 一种连续制备活性半焦的方法及其专用装置
CN104946272B (zh) * 2014-03-28 2017-09-26 宝山钢铁股份有限公司 一种焦炉荒煤气用余热回收装置及组合式二级取热方法
CN106318418B (zh) * 2016-09-23 2019-03-15 河南博顿生物科技有限公司 一种玉米秸秆低温炭化制备生物质炭燃料的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE417688C (de) * 1921-01-21 1925-08-14 Eugen Weiss Verfahren zum Verschwelen von festen Brennstoffen im Drehrohrofen
US1830884A (en) * 1926-12-04 1931-11-10 Nielsen Harald Distillation of carbonaceous materials
FR2295382A1 (fr) * 1974-12-16 1976-07-16 Allis Chalmers Joint ameliore pour four rotatif

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1201247A (fr) * 1957-08-13 1959-12-29 Ruhrgas Ag Procédé de fabrication de coke de grande résistance
FR2284662A1 (fr) * 1974-06-27 1976-04-09 Lorraine Houilleres Procede de fabrication de coke pulverulent et de coke reactif en grains
US4064018A (en) * 1976-06-25 1977-12-20 Occidental Petroleum Corporation Internally circulating fast fluidized bed flash pyrolysis reactor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE417688C (de) * 1921-01-21 1925-08-14 Eugen Weiss Verfahren zum Verschwelen von festen Brennstoffen im Drehrohrofen
US1830884A (en) * 1926-12-04 1931-11-10 Nielsen Harald Distillation of carbonaceous materials
FR2295382A1 (fr) * 1974-12-16 1976-07-16 Allis Chalmers Joint ameliore pour four rotatif

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656326A1 (fr) * 1989-12-22 1991-06-28 Pillard Chauffage Procedes, dispositifs et fours tournants pour fabriquer en continu du charbon de bois riche en carbone.
RU2119531C1 (ru) * 1995-10-09 1998-09-27 Акционерное общество открытого типа Челябинский электрометаллургический комбинат Способ получения термоантрацита во вращающейся трубчатой печи
RU2481386C2 (ru) * 2008-10-08 2013-05-10 Сергей Петрович Хмеленко Способ непрерывной термохимической переработки различных видов углеродсодержащего сырья

Also Published As

Publication number Publication date
EP0022018B1 (de) 1983-02-09
DK160366C (da) 1991-08-19
FR2459824A1 (fr) 1981-01-16
NO150723C (no) 1984-12-05
JPH0113514B2 (de) 1989-03-07
DE3061892D1 (en) 1983-03-17
US4366026A (en) 1982-12-28
JPS5645980A (en) 1981-04-25
YU164580A (en) 1983-02-28
BR8003929A (pt) 1981-01-13
DK269780A (da) 1980-12-26
DK160366B (da) 1991-03-04
YU41719B (en) 1987-12-31
NO150723B (no) 1984-08-27
NO801873L (no) 1980-12-29
FR2459824B1 (de) 1982-07-16
ATE2439T1 (de) 1983-03-15

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