Water-soluble corrosion inhibitor

• Main Authors: PAN YONG, ZHU HAOLIANG
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2019
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CRACKING HYDROCARBON OILS; DIFFUSION TREATMENT OF METALLIC MATERIAL; FUELS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LUBRICANTS; METALLURGY; MINERAL WAXES; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention discloses a water-soluble corrosion inhibitor. The water-soluble corrosion inhibitor comprises the following components in percentage by mass: 5%-30% of oleic acid imidazoline, 1%-30% ofethylenediamine, 0.01% -0.1% of nonylphenol polyoxyethylene ether, 0.1% -5% of demulsifier, 0.1% -0.5% of chelating agent, and the balance tap water. The corrosion inhibitor has good corrosion inhibition effect on an oil refining device, and has no adverse effect on a catalyst of the device, the quality of oil products and subsequent oil refining processing devices; in addition, the water-solublecorrosion inhibitor is low in cost and convenient to use, and solves the adverse factors such as that deionized water is used in traditional water-soluble corrosion inhibitor production, and the water-soluble corrosion inhibitor is easily emulsified and carried with oil. 本发明公开了一种水溶性缓蚀剂，包括以下各种成分按质量百分比配置：油酸咪唑啉5％-30％，乙二胺1％-30％，壬基酚聚氧乙烯醚0.01％～0.1％，破乳剂0.1％～5％，螯合剂0.1％～0.5％，余量成分是自来水。本发明对炼油装置的缓蚀效果好，对装置催化剂、油品质量及后续炼油加工装置无不良影响，且成本较低、