EP2048217A3 - Method for decarbonising cracking furnaces - Google Patents

Method for decarbonising cracking furnaces Download PDF

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Publication number
EP2048217A3
EP2048217A3 EP08017417A EP08017417A EP2048217A3 EP 2048217 A3 EP2048217 A3 EP 2048217A3 EP 08017417 A EP08017417 A EP 08017417A EP 08017417 A EP08017417 A EP 08017417A EP 2048217 A3 EP2048217 A3 EP 2048217A3
Authority
EP
European Patent Office
Prior art keywords
decoking
cracking
cracking furnace
entkokungsabgas
exhaust gas
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.)
Ceased
Application number
EP08017417A
Other languages
German (de)
French (fr)
Other versions
EP2048217A2 (en
Inventor
Gerhard Dr. Merz
Robert Stegemann
Christopher Eberstein
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of EP2048217A2 publication Critical patent/EP2048217A2/en
Publication of EP2048217A3 publication Critical patent/EP2048217A3/en
Ceased 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
    • C10B43/00—Preventing or removing incrustations
    • C10B43/02—Removing incrustations
    • C10B43/10—Removing incrustations by burning out
    • 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
    • C10G70/00—Working-up undefined normally gaseous mixtures obtained by processes covered by groups C10G9/00, C10G11/00, C10G15/00, C10G47/00, C10G51/00
    • 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
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
    • C10G9/16—Preventing or removing incrustation

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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

Die Erfindung beschreibt ein Verfahren zur Entkokung eines Spaltofens (1) zur Spaltung von Kohlenwasserstoffen. Während der Entkokung wird in die Spaltrohre (2) und die anschließenden Spaltgaskühler (3) ein Gemisch aus Luft und Wasserdampf geschickt. Während der Entkokung wird dabei die Strahlungszone (1a) des Spaltofens (1) über die Brenner (4) auf einer Temperatur von ca. 1100°C gehalten. Das dabei entstehende Entkokungsabgas (5) wird zu einem Zyklonabscheider (6) geleitet. Vor dem Zyklonabscheider (6) wird Wasser (7) in regelmäßigen Zeitabständen in das Entkokungsabgas (5) eingedüst. Im Zyklonabscheider (6) werden feste Partikel, wie beispielsweise Kokspartikel oder Staubpartikel, aus dem gasförmigen Entkokungsabgas herausgetrennt (8). Das von festen Bestandteilen befreite Entkokungsabgas (9) wird in den Feuerraum der Strahlungszone (1a) des Spaltofens (1) geführt. Bei den dort herrschenden Tempertauren wird das im Entkokungsabgas (9) noch vorhandene Kohlenmonoxid nahezu vollständig zu Kohlendioxid umgewandelt. Das, dem Spaltofen entweichende, Abgas (10) ist somit nunmehr befreit von Koks- bzw. Staubpartikeln und Kohlenmonoxid.

Figure imgaf001
The invention describes a process for decoking a cracking furnace (1) for the cracking of hydrocarbons. During decoking, a mixture of air and water vapor is sent into the cracking tubes (2) and the subsequent quenching gas coolers (3). During decoking, the radiation zone (1a) of the cracking furnace (1) is kept at a temperature of about 1100 ° C. via the burners (4). The resulting Entkokungsabgas (5) is passed to a cyclone separator (6). Before the cyclone separator (6) water (7) is injected into the Entkokungsabgas (5) at regular intervals. In the cyclone separator (6), solid particles, such as coke particles or dust particles, are separated from the gaseous decoke exhaust gas (8). The freed from solid components Entkokungsabgas (9) is fed into the combustion chamber of the radiation zone (1a) of the cracking furnace (1). In the tempertures prevailing there, the carbon monoxide still present in the decoking exhaust gas (9) is almost completely converted to carbon dioxide. The, the cracking furnace escaping, exhaust gas (10) is thus now exempt from coke or dust particles and carbon monoxide.
Figure imgaf001
EP08017417A 2007-10-12 2008-10-02 Method for decarbonising cracking furnaces Ceased EP2048217A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710048984 DE102007048984A1 (en) 2007-10-12 2007-10-12 Process for the decoking of cracking furnaces

Publications (2)

Publication Number Publication Date
EP2048217A2 EP2048217A2 (en) 2009-04-15
EP2048217A3 true EP2048217A3 (en) 2012-06-06

Family

ID=40298632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08017417A Ceased EP2048217A3 (en) 2007-10-12 2008-10-02 Method for decarbonising cracking furnaces

Country Status (2)

Country Link
EP (1) EP2048217A3 (en)
DE (1) DE102007048984A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103965947B (en) * 2013-02-06 2015-10-28 中国石油化工集团公司 A kind of pyrolyzer furnace binding

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929316A1 (en) * 1978-08-04 1980-02-28 Schroeder Wilburn C CONTINUOUS METHOD FOR HYDROGENATING COAL
EP0021167A1 (en) * 1979-06-08 1981-01-07 Linde Aktiengesellschaft Process and apparatus for the thermal decoking of an apparatus for the thermal cracking of hydrocarbons such apparatus comprising a cracking zone followed by a cooler for the product gas
EP0036151A1 (en) * 1980-03-15 1981-09-23 BASF Aktiengesellschaft Process for thermally decoking coolers for cracked gases
WO1990012851A1 (en) * 1989-04-14 1990-11-01 Procedes Petroliers Et Petrochimiques Process and apparatus for decoking a steam-craking installation
US5183642A (en) * 1989-10-06 1993-02-02 Procedes Petroliers Et Petrochimiques Installation for steam cracking hydrocarbons, with solid erosive particles being recycled
EP0573001A1 (en) * 1992-06-03 1993-12-08 Praxair Technology, Inc. Waste recycle system
EP1087007A2 (en) * 1999-09-22 2001-03-28 Technip Italy S.p.A. Process and apparatus for reducing the coke dust in the effluents during the decoking of cracking ovens

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830824A1 (en) 1978-07-13 1980-01-24 Linde Ag Steam-cracking of heavy hydrocarbon(s) - using the waste heat to pre-heat the oil before and after previous hydrogenation
DE2854061A1 (en) 1978-12-14 1980-07-03 Linde Ag METHOD FOR PREHEATING HYDROCARBONS BEFORE THERMAL CLEAVING
DE4102862A1 (en) 1991-01-31 1992-08-06 Linde Ag METHOD FOR THE DECOKING OF SPLIT OVENS

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929316A1 (en) * 1978-08-04 1980-02-28 Schroeder Wilburn C CONTINUOUS METHOD FOR HYDROGENATING COAL
EP0021167A1 (en) * 1979-06-08 1981-01-07 Linde Aktiengesellschaft Process and apparatus for the thermal decoking of an apparatus for the thermal cracking of hydrocarbons such apparatus comprising a cracking zone followed by a cooler for the product gas
EP0036151A1 (en) * 1980-03-15 1981-09-23 BASF Aktiengesellschaft Process for thermally decoking coolers for cracked gases
WO1990012851A1 (en) * 1989-04-14 1990-11-01 Procedes Petroliers Et Petrochimiques Process and apparatus for decoking a steam-craking installation
US5183642A (en) * 1989-10-06 1993-02-02 Procedes Petroliers Et Petrochimiques Installation for steam cracking hydrocarbons, with solid erosive particles being recycled
EP0573001A1 (en) * 1992-06-03 1993-12-08 Praxair Technology, Inc. Waste recycle system
EP1087007A2 (en) * 1999-09-22 2001-03-28 Technip Italy S.p.A. Process and apparatus for reducing the coke dust in the effluents during the decoking of cracking ovens

Also Published As

Publication number Publication date
DE102007048984A1 (en) 2009-04-16
EP2048217A2 (en) 2009-04-15

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