CN106336900A - 一种酰胺型高效油溶性高温缓蚀剂 - Google Patents

一种酰胺型高效油溶性高温缓蚀剂 Download PDF

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Publication number
CN106336900A
CN106336900A CN201610832936.XA CN201610832936A CN106336900A CN 106336900 A CN106336900 A CN 106336900A CN 201610832936 A CN201610832936 A CN 201610832936A CN 106336900 A CN106336900 A CN 106336900A
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Prior art keywords
corrosion inhibitor
propane diamine
acid
carbon chain
long carbon
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CN201610832936.XA
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程晓婷
李大鹏
李洪社
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Weihai Xiang Yu Environmental Protection Science And Technology Co Ltd
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Weihai Xiang Yu Environmental Protection Science And Technology Co Ltd
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Priority to CN201610832936.XA priority Critical patent/CN106336900A/zh
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    • 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
    • C10G75/00—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general
    • C10G75/02—Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general by addition of corrosion inhibitors
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • 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
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/80—Additives

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

本发明通过以一种长碳链脂肪酸，甲醛及一种长碳链丙二胺为反应物，甲苯作为溶剂及携水剂，在温度180到250℃范围内反应生成的一种油溶性耐高温酰胺合成化合物。该酰胺合成化合物兼具高沸点，油溶性两大特性，在炼油装置高温部分缓蚀剂中极性基团在较高温度时能与环烷酸反应,反应物吸附在金属材料表面，形成一种多中心、多层次的吸附性保护膜；同时部分缓蚀剂与环烷酸直接作用，生成大分子量的环烷酸酯，从而在金属表面建立吸附平衡，将环烷酸等有机酸和金属表面隔离，达到保护材质的目的。

Description

一种酰胺型高效油溶性高温缓蚀剂
技术领域
本发明涉及石油炼化领域，特别涉及一种耐高温油溶性长碳链酰胺合成化合物缓蚀药剂。
背景技术
近年来，随着油田不断加大开采深度及大量高酸原油的进口，我国原油日益重质化、劣质化，其酸值不断提高，对原油加工设备的腐蚀越来越严重，腐蚀问题已成为影响国民经济和社会可持续发展的重要因素。在石油炼制过程中，环烷酸腐蚀是普遍存在的技术难题，目前我国有90％以上的炼油厂采用加注不同缓蚀剂的措施来减轻不同装置中不同部位的腐蚀情况，缓蚀剂应用前景广泛，市场宽广，具有很大的研究价值。
长碳链酰胺合成化合物缓蚀剂是针对石油炼化设备中高温部分腐蚀而立项的。主要用作高温缓蚀剂，在350-500℃高温情况下能够稳定存在，起到很好的缓蚀效果。
在炼油装置高温部分长碳链酰胺合成化合物缓蚀剂很好的溶解分散于原料油中，其中极性基团在较高温度时能与环烷酸反应,反应物吸附在金属材料表面，形成一种多中心、多层次的吸附性保护膜；同时部分缓蚀剂与环烷酸直接作用，生成大分子量的环烷酸酯，从而在金属表面建立吸附平衡，将环烷酸等有机酸和金属表面隔离，达到保护材质的目的。
发明内容
本发明为合成一种兼具耐高温，油溶性缓蚀药剂，主要用在石油炼化装置高温部分。
一种酰胺合成化合物型高效油溶性高温缓蚀剂，含一种长碳链脂肪酸、甲醛、一种长碳链丙二胺、甲苯。各组分质量百分比为：
一种长碳链脂肪酸： 30%~60%。
甲醛： 20%~30%。
一种长碳链丙二胺： 35%~70%。
甲苯： 20%~30%。
所述的一种长碳链脂肪酸为棕榈酸，亚油酸，羊脂酸，α-亚麻酸中的一种。
所述的一种长碳链丙二胺为N-壬烷基丙二胺，N-十一烷基丙二胺，N-十二烷基丙二胺，N-十四烷基丙二胺，N-十五烷基丙二胺中的一种。
所述的甲醛确定为多聚甲醛。
所述的溶剂及携水剂确定为甲苯。

Claims (9)

1.一种酰胺合成化合物型高效油溶性高温缓蚀剂，含一种长碳链脂肪酸、甲醛、一种长碳链丙二胺、甲苯。
2.各组分质量百分比为：
一种长碳链脂肪酸： 30%~60%。
3.甲醛： 20%~30%。
4.一种长碳链丙二胺： 35%~70%。
5.甲苯： 20%~30%。
6.根据权利要求1所述的一种酰胺合成化合物型高效油溶性高温缓蚀剂所含的一种长碳链脂肪酸为棕榈酸，亚油酸，羊脂酸，α-亚麻酸中的一种。
7.根据权利要求1所述的一种酰胺合成化合物型高效油溶性高温缓蚀剂所含的一种长碳链丙二胺为N-壬烷基-丙二胺，N-十一烷基-丙二胺，N-十二烷基丙二胺，N-十四烷基丙二胺，N-十五烷基丙二胺中的一种。
8.根据权利要求1所述的一种酰胺合成化合物型高效油溶性高温缓蚀剂所含的甲醛确定为多聚甲醛。
9.根据权利要求1所述的一种酰胺合成化合物型高效油溶性高温缓蚀剂所含的溶剂及携水剂确定为甲苯。
CN201610832936.XA 2016-09-20 2016-09-20 一种酰胺型高效油溶性高温缓蚀剂 Pending CN106336900A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107857711A (zh) * 2017-10-12 2018-03-30 威海翔泽新材料科技有限公司 一种用于常减压装置的高温缓蚀剂的制备
CN114481137A (zh) * 2021-12-21 2022-05-13 宜兴汉光高新石化有限公司 一种减缓高温有机酸腐蚀的添加剂及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107857711A (zh) * 2017-10-12 2018-03-30 威海翔泽新材料科技有限公司 一种用于常减压装置的高温缓蚀剂的制备
CN114481137A (zh) * 2021-12-21 2022-05-13 宜兴汉光高新石化有限公司 一种减缓高温有机酸腐蚀的添加剂及其制备方法

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