High cleaning diesel oil stablizer

Abstract

The invention relates to a highly clean diesel oil stabilizer, wherein the stabilizer comprises methyl aldehyde, isopropyl alcohol, dialkyl hydroquinone and amyl nitrate. The stationary phase of the catalytic cracked diesel fuel can be extended by 45 days.

Description

technical field [0001] The invention relates to a high-clean diesel stabilizer, which belongs to petrochemical products. Background technique [0002] Diesel oil obtained by catalytic cracking in refineries contains a large amount of non-hydrocarbon compounds and unsaturated hydrocarbons containing sulfur, nitrogen, and oxygen. Unsaturated hydrocarbons, especially diolefins, are the most easily oxidized components in hydrocarbons. They are easily oxidized and condensed into insoluble gums and sediments under the trigger of trace non-hydrocarbon compounds. Non-hydrocarbon compounds, especially non-basic nitrogen compounds such as pyrrole Classes, tetrahydrocarbazole and other properties are very unstable, easy to oxidize into peroxides and trigger the oxidation of hydrocarbons, basic nitrogen compounds such as pyridines, quinolines have an oxidation catalytic effect when they coexist with non-basic nitrogen compounds, and can Accelerate the generation of peroxide and the oxi...

AI Technical Summary

Problems solved by technology

But only for refined diesel, and this effect is very weak

However, some domestic patents are only effective for suppressing the sedimentation of diesel produced by some refineries, and cannot suppress the darkening of diesel oil

These published patented methods are deficient: ① only suitable for hydrogenated diesel oil, not valid for unhydrotreated diesel oil

②The stable period is short, the process is complex, the amount of addition is large, and the cost is high

③ Poor miscibility with diesel

④ Raw materials are not easy to purchase, relying on imports

Therefore, the above-mentioned patents cannot actually be popularized and applied.