EP0033093B1 - Verfahren zur trockenen Kokskühlung - Google Patents

Verfahren zur trockenen Kokskühlung Download PDF

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Publication number
EP0033093B1
EP0033093B1 EP81100244A EP81100244A EP0033093B1 EP 0033093 B1 EP0033093 B1 EP 0033093B1 EP 81100244 A EP81100244 A EP 81100244A EP 81100244 A EP81100244 A EP 81100244A EP 0033093 B1 EP0033093 B1 EP 0033093B1
Authority
EP
European Patent Office
Prior art keywords
coke
chamber
cooling medium
temperature
gaseous cooling
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.)
Expired
Application number
EP81100244A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0033093A2 (de
EP0033093A3 (en
Inventor
Friedrich Dr. Jokisch
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers GmbH
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 Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Priority to AT81100244T priority Critical patent/ATE7040T1/de
Publication of EP0033093A2 publication Critical patent/EP0033093A2/de
Publication of EP0033093A3 publication Critical patent/EP0033093A3/de
Application granted granted Critical
Publication of EP0033093B1 publication Critical patent/EP0033093B1/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
    • C10B39/00—Cooling or quenching coke
    • C10B39/02—Dry cooling outside the oven

Definitions

  • the invention relates to a method for dry coke cooling in a shaft-shaped chamber, in which the coke which has been introduced from above and which is hot at about 1,100.degree. C. is treated in countercurrent with a gaseous cooling medium, and the coke at a temperature of about 180.degree is withdrawn from the chamber, the cooling medium being supplied in two controllable partial flows in such a way that the first partial flow is introduced into the lower part of the chamber.
  • Cooling chamber is initiated.
  • one partial flow is diverted downwards and exits into the coke bed at the bottom of the chamber, while the other partial flow is introduced into the coke bed above it.
  • the proposed division of the gaseous cooling medium into two partial flows is intended to achieve a cooling gas distribution adapted to the grain distribution in the cooling chamber with the aim of uniform cooling of all parts of the coke filling.
  • a similarly constructed device is also described in DE-A-2 432 025.
  • the gaseous cooling medium is divided into two partial flows with the aim of achieving the most uniform possible vertical movement of the coke and the uniform distribution of the gaseous cooling medium in the cooling chamber.
  • the method of solving this problem of the type described at the outset is characterized according to the invention in that the second partial stream, which comprises 20 to 50% by volume of the total amount of gaseous cooling medium required, is fed into the chamber in an area in which the Coke to be cooled has a temperature of 400 to 600 ° C.
  • the invention is based on the knowledge that for certain solids, including coke, the thermal conductivity (X) is strongly temperature-dependent.
  • the illustration in FIG. 1 therefore shows a coordinate system in which the temperature (0) is plotted on the abscissa and the thermal conductivity (X) is plotted on the ordinate.
  • the typical curve profile shown in this coordinate system clearly shows that in such cases the coefficient of thermal conductivity (X) initially does not increase or increases very slowly with increasing temperature.
  • the time course of the convective total heat transport between the solid and the gaseous cooling medium is determined by the thermal conductivity in the solid itself and the heat transfer resistance between the solid and the gaseous cooling medium.
  • the thermal conductivity S / ⁇ and thus material, because S indicates the characteristic thickness of the solid body in question and its coefficient of thermal conductivity.
  • the thermal resistance can therefore only be influenced by the geometric shape of the solid body.
  • the heat transfer resistance is defined as 1 / a, the heat exchange between the gaseous cooling medium and the surfaces of the solid being described by the heat transfer coefficient ⁇ .
  • the heat transfer coefficient is dependent on the flow around the solid body, that is to say on its geometric shape and the flow rate of the gaseous cooling medium.
  • the second partial flow of the gaseous cooling medium is introduced into the upper region of the shaft-shaped chamber, in which the coke to be cooled is still a temperature of 400 to 600 ° C which is not below the so-called limit temperature ( ⁇ G ) has, which is why the thermal conductivity (S / ⁇ ) is correspondingly smaller there. It has also proven to be useful if about 20 to 50% by volume of the total amount of cooling medium required is added to the second partial flow.
  • the effectiveness of the method according to the invention can be further improved by increasing the flow rate of the media in the area of the feed point of the second partial flow of the cooling medium by a corresponding narrowing of the shaft-shaped chamber, which also results in a reduction in the heat transfer resistance (1 / ⁇ ) .
  • this can be brought about by either having a corresponding taper in the upper part of the shaft-shaped chamber, or by installing appropriate internals in the upper part of the chamber.
  • the red-hot coke is fed into the shaft-shaped chamber 6 from above into the shaft-shaped chamber 6 at a temperature of approx. 1 100 ° C. in an amount of approx. 80 t / h and initially reaches the uppermost part above the line 3, also known as Antechamber 13 is called.
  • Antechamber 13 also known as Antechamber 13
  • any fluctuations that may occur during the supply of the glowing coke are to be compensated for, so that quasi-stationary conditions can develop in the areas of the chamber 6 below.
  • the entire chamber 6 is provided with a suitable refractory lining and has a taper in its upper region II, by means of which the flow velocities of the media in this region are correspondingly increased compared to the lower region I.
  • the filled coke forms the fixed bed 7 in the chamber 6, which is shown hatched in the figure.
  • the temperature inside the fixed bed decreases steadily from top to bottom, so that the cooled coke accordingly.
  • the feed quantity can be withdrawn via the discharge 8 at a temperature of approx. 180 ° C.
  • the gaseous cooling medium is he f indungs- according into two part streams in the chamber 6, keeping the first partial flow via line 1 into the lower part of the chamber occurs. 6
  • the second partial flow in an amount of about 30-35% by volume of the total amount is introduced into the chamber 6 via the line 2 in a region in which the fixed bed 7 has a temperature of approximately 500 ° C. At this temperature, the invention. Conditions regarding the limit temperature ( ⁇ G ) of the coefficient of thermal conductivity (X) are met.
  • the thermal conductivity in fixed bed 7 is smaller than the heat transfer resistance, while below the feed point the conditions are exactly the opposite.
  • the heated gaseous cooling medium becomes withdrawn via the line 3 from the upper part of the chamber 6 and reaches the waste heat boiler 4, in which the required cooling takes place with heat recovery.
  • the cooled gaseous cooling medium can then be recirculated to line 1 via line 9 and blower 10.
  • Line 2 branches off from this.
  • the control flaps 11 and 12 serve to regulate the two partial flows. Instead of the butterfly valves 11 and 12, fans can also be used to regulate the two partial flows.
  • Inert gas preferably flue gas, is used as the gaseous cooling medium.
  • the tapering of the chamber 6, through which the flow velocities in the upper part thereof are to be increased begins in the region of the entry point of the line 2 into the chamber 6. This is of course a pure one Contingent action that is not necessary in every case.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP81100244A 1980-01-29 1981-01-15 Verfahren zur trockenen Kokskühlung Expired EP0033093B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100244T ATE7040T1 (de) 1980-01-29 1981-01-15 Verfahren zur trockenen kokskuehlung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3002990 1980-01-29
DE3002990A DE3002990C2 (de) 1980-01-29 1980-01-29 Verfahren zur trockenen Kokskühlung

Publications (3)

Publication Number Publication Date
EP0033093A2 EP0033093A2 (de) 1981-08-05
EP0033093A3 EP0033093A3 (en) 1981-12-09
EP0033093B1 true EP0033093B1 (de) 1984-04-11

Family

ID=6093112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100244A Expired EP0033093B1 (de) 1980-01-29 1981-01-15 Verfahren zur trockenen Kokskühlung

Country Status (12)

Country Link
US (1) US4486269A (enrdf_load_stackoverflow)
EP (1) EP0033093B1 (enrdf_load_stackoverflow)
JP (1) JPS56110782A (enrdf_load_stackoverflow)
AR (1) AR224558A1 (enrdf_load_stackoverflow)
AT (1) ATE7040T1 (enrdf_load_stackoverflow)
AU (1) AU535338B2 (enrdf_load_stackoverflow)
BR (1) BR8100423A (enrdf_load_stackoverflow)
CA (1) CA1144510A (enrdf_load_stackoverflow)
DE (1) DE3002990C2 (enrdf_load_stackoverflow)
ES (1) ES497214A0 (enrdf_load_stackoverflow)
MX (1) MX155642A (enrdf_load_stackoverflow)
ZA (1) ZA806605B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3235261C2 (de) * 1982-09-23 1984-08-02 Hartung, Kuhn & Co Maschinenfabrik GmbH, 4000 Düsseldorf Verfahren und Einrichtung zur Nutzung der Abwärme und zur Gewinnung von Wassergas beim Kühlen von Koks
US4578387A (en) * 1984-03-05 1986-03-25 Eli Lilly And Company Inotropic agents
JP4663359B2 (ja) 2005-03-17 2011-04-06 新日鉄エンジニアリング株式会社 コークス乾式消火設備のガス吹込み装置およびその操業方法
KR100820183B1 (ko) * 2007-07-19 2008-04-08 (주)성진씨앤씨 씨디큐용 편류 방지판

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH105192A (de) * 1922-12-18 1924-06-02 Sulzer Ag Behälter zum Trockenkühlen von Koks.
FR698891A (fr) * 1930-07-12 1931-02-06 Silica En Ovenbouw Mij Nv Procédé de refroidissement de coke incandescent
DE2432025C3 (de) * 1974-07-03 1980-11-13 Gosudarstwennyj Wsesojusnyj Institut Po Projektirowaniju Predprijatij Koksochimitscheskoj Promyschlennosti, Charkow (Sowjetunion) Vorrichtung zum Trockenlöschen von Koks und anderen stückigen Brennstoffen
JPS5114901A (en) * 1974-07-30 1976-02-05 Gosudarusutoennui Vi Ho Puroek Kookusu oyobisono tano kanetsuseikaijozairyono kanshikikyureisochi
SU802354A1 (ru) * 1977-03-01 1981-02-07 Украинский Научно-Исследовательскийуглехимический Институт Способ сухого тушени кокса и получени гАзОВ, СОдЕРжАщиХ ВОдОРОд и ОКиСьуглЕРОдА, и уСТРОйСТВО дл ЕгООСущЕСТВлЕНи

Also Published As

Publication number Publication date
BR8100423A (pt) 1981-08-11
JPS56110782A (en) 1981-09-02
ZA806605B (en) 1981-11-25
JPH0148307B2 (enrdf_load_stackoverflow) 1989-10-18
DE3002990A1 (de) 1981-07-30
US4486269A (en) 1984-12-04
AU6529480A (en) 1981-08-06
AR224558A1 (es) 1981-12-15
DE3002990C2 (de) 1984-11-08
AU535338B2 (en) 1984-03-15
ES8107385A1 (es) 1981-10-16
EP0033093A2 (de) 1981-08-05
CA1144510A (en) 1983-04-12
ATE7040T1 (de) 1984-04-15
EP0033093A3 (en) 1981-12-09
ES497214A0 (es) 1981-10-16
MX155642A (es) 1988-04-11

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