High temp corrosion inhibitor and its preparation method and application

A high-temperature corrosion inhibitor and corrosion inhibitor technology, applied in the field of high-temperature corrosion inhibitors, can solve problems such as poor corrosion inhibition effect and unstable performance of high-temperature corrosion inhibitors, and achieve improved activation energy, low cost, and cheap raw materials Easy to get effect
CN1869287AInactive Publication Date: 2006-11-29LUOYANG PETROCHEMICAL ENG CORP SINOPEC
3 Cites 15 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LUOYANG PETROCHEMICAL ENG CORP SINOPEC
Publication Date
2006-11-29
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a manufacture method and application for high temperature inhibitor that is the compound has the structure general expression (1), and R1 is C4-C12 alkyl, R2 is C8-C30 alkyl or alkyl derivative, n is 2-5, A is SH or R10. The invention could effectively solve the naphthenic acid corruption and sulfur corruption generated by high temperature section in petroleum processing.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of corrosion inhibition of metal materials, in particular to a high-temperature corrosion inhibitor used on the surface of equipment and pipelines with corrosion risk in the petroleum refining process, and a preparation method and application of the corrosion inhibitor. Background technique

[0002] In recent years, with the continuous deterioration of the quality of processed crude oil, various degrees of naphthenic acid corrosion and sulfur corrosion have occurred in the distillation units of many refineries, resulting in equipment corrosion and leakage, which seriously affects the normal operation of the units.

[0003] Crude oil contains a small amount of acidic oxides, such as fatty acids, naphthenic acids, and phenols. These acidic oxides are collectively referred to as petroleum acids. The content of naphthenic acid usually accounts for about 90% of petroleum acid, so naphthenic acid is the cause of equipment fa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More