Oil dechlorination agent

Abstract

The invention relates to an oil dechlorination agent, and belongs to the technical field of petrochemical industry. The oil dechlorination agent is composed of the following raw materials in parts byweight: 25 to 35 parts of 3-propanolamine, 15 to 25 parts of ethylenediamine, and 35 to 45 parts of triethylenediamine. The raw materials are uniformly mixed, and then impurities are removed by filtration, so that the oil dechlorination agent is obtained. The oil dechlorination agent of the invention has stable performance, excellent dissolving performance and good dispersing performance in raw oil, good stability with organic chloralkane, and a low usage amount, and the usage amount is 35 [mu]g / g which is a weight of raw oil for normal- and reduced-pressure electric desalination processing.

Description

technical field [0001] The invention relates to an oil dechlorination agent, which belongs to the technical field of petrochemical industry. Background technique [0002] Crude oil is composed of more than 95% carbon and hydrogen compounds, and the remaining 5% is organic and inorganic heteroelement compounds composed of sulfur, chlorine, nitrogen and metal elements. Although the content of such compounds is small, it affects the quality of the entire refinery. Process and product quality. From the perspective of corrosion and anti-corrosion, some of these impurities contained in crude oil are themselves corrosive media, such as hydrogen sulfide, elemental sulfur, mercaptans, organic acids, etc., and some will be converted into corrosive media during processing. For example, the hydrolysis of inorganic salt magnesium chloride produces magnesium hydroxide and hydrochloric acid. In addition to inorganic chlorides, crude oil also contains some organic chlorides. The organic...

AI Technical Summary

Problems solved by technology

The presence of organic chlorides will seriously affect the subsequent processing and refining of crude oil. For example, in the reforming process, the raw materials are pre-hydrotreated, and organic chlorides will be converted into hydrogen chloride. Hydrogen chloride forms hydrochloric acid and chloride with water and ammonia, respectively. Ammonium will cause serious corrosion to the equipment and block the pipeline. In serious cases, the device will be forced to stop for maintenance and cause huge economic losses to the enterprise.

[0003] At present, the most common way to remove organic chlorine is to use dechlorination agents. Most of the commercially available oil dechlorination agents have defects such as complicated preparation process, harsh operating conditions, narrow application range, and cumbersome follow-up treatment.