ATE493485T1 - Hochtemperaturkorrosionsinhibitor - Google Patents

Hochtemperaturkorrosionsinhibitor

Info

Publication number
ATE493485T1
ATE493485T1 AT05820782T AT05820782T ATE493485T1 AT E493485 T1 ATE493485 T1 AT E493485T1 AT 05820782 T AT05820782 T AT 05820782T AT 05820782 T AT05820782 T AT 05820782T AT E493485 T1 ATE493485 T1 AT E493485T1
Authority
AT
Austria
Prior art keywords
high temperature
corrosion inhibitor
temperature corrosion
inhibitor
temperature
Prior art date
Application number
AT05820782T
Other languages
German (de)
English (en)
Inventor
Scott Lehrer
S Blake Pruett
Liliana Minevski
James Edmondson
Alan Goliaszewski
Feng Shao
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Application granted granted Critical
Publication of ATE493485T1 publication Critical patent/ATE493485T1/de

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G7/00Distillation of hydrocarbon oils
    • C10G7/10Inhibiting corrosion during distillation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L10/00Use of additives to fuels or fires for particular purposes
    • C10L10/04Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G9/00Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/14Thermal 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
    • C10G9/16Preventing or removing incrustation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/18Organic compounds containing oxygen
    • C10L1/188Carboxylic acids; metal salts thereof
    • C10L1/189Carboxylic acids; metal salts thereof having at least one carboxyl group bound to an aromatic carbon atom
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/18Organic compounds containing oxygen
    • C10L1/188Carboxylic acids; metal salts thereof
    • C10L1/189Carboxylic acids; metal salts thereof having at least one carboxyl group bound to an aromatic carbon atom
    • C10L1/1895Carboxylic acids; metal salts thereof having at least one carboxyl group bound to an aromatic carbon atom polycarboxylic acid
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/18Organic compounds containing oxygen
    • C10L1/19Esters ester radical containing compounds; ester ethers; carbonic acid esters
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/18Organic compounds containing oxygen
    • C10L1/19Esters ester radical containing compounds; ester ethers; carbonic acid esters
    • C10L1/1905Esters ester radical containing compounds; ester ethers; carbonic acid esters of di- or polycarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/10Liquid carbonaceous fuels containing additives
    • C10L1/14Organic compounds
    • C10L1/26Organic compounds containing phosphorus
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10Feedstock materials
    • C10G2300/1033Oil well production fluids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/20Characteristics of the feedstock or the products
    • C10G2300/201Impurities
    • C10G2300/202Heteroatoms content, i.e. S, N, O, P
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/20Characteristics of the feedstock or the products
    • C10G2300/201Impurities
    • C10G2300/202Heteroatoms content, i.e. S, N, O, P
    • C10G2300/203Naphthenic acids, TAN
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/20Characteristics of the feedstock or the products
    • C10G2300/201Impurities
    • C10G2300/207Acid gases, e.g. H2S, COS, SO2, HCN
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/40Characteristics of the process deviating from typical ways of processing
    • C10G2300/4006Temperature
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING 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
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/40Characteristics of the process deviating from typical ways of processing
    • C10G2300/4075Limiting deterioration of equipment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AT05820782T 2004-11-02 2005-10-25 Hochtemperaturkorrosionsinhibitor ATE493485T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/979,913 US20060091044A1 (en) 2004-11-02 2004-11-02 High temperature corrosion inhibitor
PCT/US2005/038522 WO2006049980A2 (en) 2004-11-02 2005-10-25 High temperature corrosion inhibitor

Publications (1)

Publication Number Publication Date
ATE493485T1 true ATE493485T1 (de) 2011-01-15

Family

ID=35789023

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05820782T ATE493485T1 (de) 2004-11-02 2005-10-25 Hochtemperaturkorrosionsinhibitor

Country Status (15)

Country Link
US (1) US20060091044A1 (zh)
EP (1) EP1814965B1 (zh)
JP (1) JP4870679B2 (zh)
KR (1) KR20070088667A (zh)
CN (1) CN101052698B (zh)
AR (1) AR052783A1 (zh)
AT (1) ATE493485T1 (zh)
BR (1) BRPI0516923A (zh)
CA (1) CA2585491A1 (zh)
DE (1) DE602005025679D1 (zh)
MY (1) MY143236A (zh)
RU (1) RU2377276C2 (zh)
SG (1) SG157366A1 (zh)
TW (1) TWI408220B (zh)
WO (1) WO2006049980A2 (zh)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101581215B1 (ko) 2007-03-30 2015-12-30 도르프 케탈 케미칼즈 (인디아) 프라이비트 리미티드 유기인계 황 화합물을 포함하는 나프텐산 부식 억제 조성물, 및 이를 이용한 고온 나프텐산 부식 억제 방법 및 황 부식 억제 방법
CA2682656C (en) 2007-04-04 2015-05-26 Dorf Ketal Chemicals (I) Private Limited Naphthenic acid corrosion inhibition using new synergetic combination of phosphorus compounds
MY151257A (en) 2007-09-14 2014-04-30 Dorf Ketal Chemicals I Private Ltd A novel additive for naphthenic acid corrosion inhibition and method of using the same
WO2009053971A1 (en) * 2007-10-22 2009-04-30 Oil Refineries Ltd Process for inhibiting naphthenic acid corrosion
JP5410528B2 (ja) 2008-08-26 2014-02-05 ドルフ ケタール ケミカルズ(I) プライベート リミテッド ナフテン酸腐食を防止する効果的な新規ポリマー性の添加物及びその使用方法
JP5846911B2 (ja) 2008-08-26 2016-01-20 ドルフ ケタール ケミカルズ(I) プライベート リミテッド 酸腐食防止のための新規添加物及び前記新規添加物の使用方法
KR100933308B1 (ko) * 2009-03-17 2009-12-22 재원산업 주식회사 기회원유의 정제장치 및 방법
DE102009021774A1 (de) * 2009-05-18 2010-11-25 Abb Technology Ag Verfahren und Einrichtung zur Identifikation von Korrelationen zwischen Alarmmeldungen oder zwischen Alarmmeldungen und Bedieneingriffen
CN101987973B (zh) * 2009-07-30 2015-04-29 中国石油化工股份有限公司 一种降低含酸烃油腐蚀性的方法
CN102888246B (zh) * 2011-07-20 2014-12-10 武汉润尔华科技有限公司 一种用于糠醛精制装置的缓蚀阻焦剂
WO2013019631A2 (en) 2011-07-29 2013-02-07 Saudi Arabian Oil Company Process for reducing the total acid number in refinery feedstocks
CN102559263B (zh) * 2011-12-13 2014-03-12 浙江杭化科技有限公司 一种炼油装置用高温缓蚀剂
CN102559334B (zh) * 2011-12-14 2013-10-23 山西华顿实业有限公司 一种醇醚燃料用腐蚀抑制剂及其制备方法
CN102643663B (zh) * 2012-03-31 2016-08-17 中国石油大学(华东) 一种用于高温下减缓腐蚀的助剂
SG11201502518QA (en) * 2012-11-06 2015-05-28 Exxonmobil Res & Eng Co Method for identifying layers providing corrosion protection in crude oil fractions
WO2021199439A1 (ja) * 2020-04-03 2021-10-07 株式会社片山化学工業研究所 石油プロセスにおける熱交換器の汚れ防止方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL234783A (zh) * 1958-01-02
US5019341A (en) * 1986-08-11 1991-05-28 Betz Laboratories, Inc. Method of inhibiting corrosion of metal surfaces in contact with a corrosive hydrocarbon containing medium
KR0124937B1 (ko) * 1988-12-21 1997-11-26 월터 클리웨인, 한스-피터 위트린 부식 억제 도료 조성물
US5182013A (en) * 1990-12-21 1993-01-26 Exxon Chemical Patents Inc. Naphthenic acid corrosion inhibitors
US5252254A (en) * 1992-12-30 1993-10-12 Nalco Chemical Company Naphthenic acid corrosion inhibitor
US5500107A (en) * 1994-03-15 1996-03-19 Betz Laboratories, Inc. High temperature corrosion inhibitor
US5464525A (en) * 1994-12-13 1995-11-07 Betz Laboratories, Inc. High temperature corrosion inhibitor
US5556451A (en) * 1995-07-20 1996-09-17 Betz Laboratories, Inc. Oxygen induced corrosion inhibitor compositions
US6679987B1 (en) * 1995-08-25 2004-01-20 Exxonmobil Research And Engineering Company Process for decreasing the acid content and corrosivity of crudes
US5683626A (en) * 1995-08-25 1997-11-04 Exxon Research And Engineering Company Process for neutralization of petroleum acids
CN1177912C (zh) * 1995-08-25 2004-12-01 埃克森研究工程公司 降低原油酸含量和腐蚀性的方法
JP4049916B2 (ja) * 1998-12-25 2008-02-20 出光興産株式会社 高温用潤滑油組成物
US6849581B1 (en) * 1999-03-30 2005-02-01 Bj Services Company Gelled hydrocarbon compositions and methods for use thereof
US6559104B2 (en) * 2001-07-13 2003-05-06 Exxonmobil Research And Engineering Co. Method for inhibiting corrosion using certain aromatic acidic species

Also Published As

Publication number Publication date
WO2006049980A3 (en) 2006-07-27
EP1814965B1 (en) 2010-12-29
RU2377276C2 (ru) 2009-12-27
JP2008519166A (ja) 2008-06-05
CN101052698B (zh) 2011-07-06
DE602005025679D1 (de) 2011-02-10
SG157366A1 (en) 2009-12-29
KR20070088667A (ko) 2007-08-29
CN101052698A (zh) 2007-10-10
MY143236A (en) 2011-04-15
RU2007120589A (ru) 2008-12-10
AR052783A1 (es) 2007-04-04
CA2585491A1 (en) 2006-05-11
WO2006049980A2 (en) 2006-05-11
TW200632089A (en) 2006-09-16
TWI408220B (zh) 2013-09-11
JP4870679B2 (ja) 2012-02-08
BRPI0516923A (pt) 2008-09-23
US20060091044A1 (en) 2006-05-04
EP1814965A2 (en) 2007-08-08

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