Imidazoline derivative and preparation method thereof as well as petroleum refining auxiliary agent containing compound

Abstract

The invention relates to an imidazoline derivative with the structure general formula (I), wherein R represents an organic acid alkyl chain with the general formula of -CnHm, n is an integer larger than or equal to 12, and m is equal to 2n-1; R' represents an amido with the general formula of -(CH2CH2NH)n-1H, and n is an integer larger than or equal to 2. The invention also relates to a preparation method of the imidazoline derivative with the structure general formula (I), compounds with the general formulas (II) and (III) which are respectively prepared by adopting the imidazoline derivative as a raw material and modified carboxylic acid or ethylene oxide and a petroleum refining auxiliary agent. The invention has favorable atomization effect and corrosion resistance, and the crude oil can be fully emulsified in petroleum refinement to improve the atomization effect of a nozzle, inhibit colloid generation and reduce the generation of deposited carbon on catalyst, thereby being beneficial to reducing the dry gas and improving total liquid yield, reducing the performance requirement on equipment and prolonging the service life of the equipment.

Description

technical field The invention relates to an imidazoline derivative, a preparation method thereof and an auxiliary agent for petroleum refining containing the compound. Background technique In recent years, the nature of my country's crude oil has become increasingly heavy, and the selectivity of catalysts has deteriorated, increasing the yield of coke and dry gas. Crude oil with high sulfur and acid content not only causes corrosion of equipment, but also affects safe, stable, and long-term production. It also caused air pollution. In the FCC process, in order to pursue the maximum economic benefits, the refinery needs to extend the operation cycle, increase the total liquid recovery as much as possible, and reduce the yield of oil slurry and coke. With the growing demand for environmental protection, refineries must reduce harmful substances in tail gas emissions. To achieve this goal, refineries need to use high-performance catalysts to improve their activity and selectiv...

AI Technical Summary

Problems solved by technology

Combining the common characteristics of existing literature and patents, it can be found that although the development of existing technologies strives to achieve multiple effects in one dose, there are still great limitations, and the functions are relatively single

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