ATE189693T1 - METHOD FOR REDUCING CARBON DEPOSIT, METALLIC MATERIAL AND METHOD FOR PRODUCING CHEMICAL SUBSTANCES - Google Patents

METHOD FOR REDUCING CARBON DEPOSIT, METALLIC MATERIAL AND METHOD FOR PRODUCING CHEMICAL SUBSTANCES

Info

Publication number
ATE189693T1
ATE189693T1 AT96937304T AT96937304T ATE189693T1 AT E189693 T1 ATE189693 T1 AT E189693T1 AT 96937304 T AT96937304 T AT 96937304T AT 96937304 T AT96937304 T AT 96937304T AT E189693 T1 ATE189693 T1 AT E189693T1
Authority
AT
Austria
Prior art keywords
plants
chemical substances
heat
producing chemical
enrichment
Prior art date
Application number
AT96937304T
Other languages
German (de)
Inventor
Henricus Matthias Woerde
Gerhard Zimmermann
Claudin Steurbaut
Buren Fritz R Van
Robertus Joannes Nicol Gommans
John J Jones
Original Assignee
Kti Group Bv
Dsm Nv
Dow Benelux
Paralloy Ltd
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
Priority claimed from DE19542219A external-priority patent/DE19542219C2/en
Application filed by Kti Group Bv, Dsm Nv, Dow Benelux, Paralloy Ltd filed Critical Kti Group Bv
Application granted granted Critical
Publication of ATE189693T1 publication Critical patent/ATE189693T1/en

Links

Classifications

    • 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
    • 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
    • C10G9/18—Apparatus
    • C10G9/20—Tube furnaces
    • 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
    • C10G9/18—Apparatus
    • C10G9/20—Tube furnaces
    • C10G9/203—Tube furnaces chemical composition of the tubes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

The invention relates to a process for reducing the formation of catalytically induced carbon deposits (coking) on the surfaces of components designed as heat exchangers, conduits or containers and made of a heat-resistant material that consists of a heat-resistant alloy containing Cr and at least one of the two elements Fe and Ni, whereas the components are exposed to hot carbonaceous process gases in process plants for producing chemical substances, especially plants for converting hydrocarbons or other substances containing C through thermal or catalytic cracking or through steam reforming or plants for producing a CO-rich reduction gas, wherein an Al-enrichment is carried out in the surface region by means of diffusion annealing in an atmosphere containing Al. Diffusion annealing is carried out in the temperature range of 900 to 1200 DEG C at least for a part of the treatment time in an atmosphere containing Cr, until a Cr-enrichment having a penetration depth of at least 20 mu m is achieved.
AT96937304T 1995-10-31 1996-10-31 METHOD FOR REDUCING CARBON DEPOSIT, METALLIC MATERIAL AND METHOD FOR PRODUCING CHEMICAL SUBSTANCES ATE189693T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19542219A DE19542219C2 (en) 1995-10-31 1995-10-31 Process for reducing the formation of carbon deposits
US1140196P 1996-02-09 1996-02-09
PCT/EP1996/004728 WO1997016507A1 (en) 1995-10-31 1996-10-31 Process for reducing the formation of carbon deposits

Publications (1)

Publication Number Publication Date
ATE189693T1 true ATE189693T1 (en) 2000-02-15

Family

ID=26020325

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96937304T ATE189693T1 (en) 1995-10-31 1996-10-31 METHOD FOR REDUCING CARBON DEPOSIT, METALLIC MATERIAL AND METHOD FOR PRODUCING CHEMICAL SUBSTANCES

Country Status (11)

Country Link
EP (1) EP0858494B1 (en)
JP (1) JPH11514681A (en)
KR (1) KR19990067141A (en)
CN (1) CN1201480A (en)
AT (1) ATE189693T1 (en)
AU (1) AU719778B2 (en)
CA (1) CA2236091A1 (en)
HU (1) HUP9900820A3 (en)
NO (1) NO981943D0 (en)
PL (1) PL326370A1 (en)
WO (1) WO1997016507A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5873951A (en) * 1996-08-23 1999-02-23 Alon, Inc. Diffusion coated ethylene furnace tubes
US6537388B1 (en) 1996-08-23 2003-03-25 Alon, Inc. Surface alloy system conversion for high temperature applications
FR2765594B1 (en) * 1997-07-04 1999-08-27 Inst Francais Du Petrole CHROMED REFRACTORY STEEL, PROCESS FOR OBTAINING SAME AND USES THEREOF IN ANTI-COKAGE APPLICATIONS
SE529444C2 (en) * 2005-12-02 2007-08-14 Sandvik Intellectual Property Pipes and use of the pipe
EP2188412A1 (en) * 2007-09-13 2010-05-26 Siemens Aktiengesellschaft Corrosion-resistant pressure vessel steel product, a process for the production thereof and a gas turbine component

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575902A (en) * 1994-01-04 1996-11-19 Chevron Chemical Company Cracking processes

Also Published As

Publication number Publication date
NO981943L (en) 1998-04-29
WO1997016507A1 (en) 1997-05-09
HUP9900820A3 (en) 2001-02-28
AU719778B2 (en) 2000-05-18
CN1201480A (en) 1998-12-09
HUP9900820A1 (en) 1999-06-28
CA2236091A1 (en) 1997-05-09
KR19990067141A (en) 1999-08-16
PL326370A1 (en) 1998-09-14
JPH11514681A (en) 1999-12-14
AU7496296A (en) 1997-05-22
EP0858494A1 (en) 1998-08-19
EP0858494B1 (en) 2000-02-09
NO981943D0 (en) 1998-04-29

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Legal Events

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