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Method for refining poor diesel oil by using compound solvent

A technology of compound solvent and inferior diesel oil, which is applied in the refining hydrocarbon oil, petroleum industry and other directions, can solve the problems of high diesel oil loss, complex process and solvent consumption, and achieve the effects of less diesel loss, simple equipment and simple process.

Inactive Publication Date: 2008-05-28
朱光军
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Although these technologies can greatly improve the quality of diesel fractions, these processes either produce a large amount of waste residue that is difficult to handle, or have high diesel loss, or the process is complicated, or consumes a large amount of solvent, resulting in high processing costs and reduced economic benefits.

Method used

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  • Method for refining poor diesel oil by using compound solvent

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Embodiment Construction

[0011] In conjunction with the accompanying drawings, the process description is as follows:

[0012] Inferior diesel oil and composite solvent are stored in the raw material tank and solvent tank respectively, and are pumped into the refining kettle by the raw material pump and solvent pump respectively according to the appropriate ratio. The amount of composite solvent pumped into the solvent pump by the solvent pump in the same time is equal to the inferior diesel oil pumped by the raw material pump. The amount of 0.07%, the raw material and the composite solvent are mixed evenly by the agitator in the refining tank, and after standing and settling for 2 hours, a very small amount of black residue is discharged from the bottom valve of the tank to obtain a clear, transparent, odorless, and colorimetric. Diesel fraction of 2.0, the refined product is pumped out through the product pump.

[0013] The composite solvent is composed of furfural:methanol:hexamethylenediamine:hypo...

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Abstract

A method for refining poor fuel-oil making use of double solvents belongs to petrochemical technical sphere. The technical project comprising in the poor fuel-oil sample which will be treated, adding double solvents of 0.07 % relative quantity of the fuel-oil sample, stirring for 30 minutes at a normal temperature, stewing and depositing for 2 hours, then discharging the minute quantity of black settled materials at the bottom, obtaining fraction of fuel-oil which is clear, transparent and is of no objectionable odour with color comparison of 2.0; the component of the double solvents is furfural : carbinol : hexamethylene: diamine : hypochlorite = 70 : 15 : 10 : 5. The invention solves the purification problem of the poor fuel-oil produced in the processing procedures of waste plastics, scrap rubber and waste lubricating oil. The invention is of simple process and device, is of low cost, at the same time, is of small fuel-oil waste and high extraction rate, which not only is useful for environmental protection, but also has solves the problem of deficiency fuel in some degree.

Description

technical field [0001] The invention relates to a process for extracting fuel oil from diesel fractions generated during the treatment of waste plastics, waste rubber and waste lubricating oil, in particular to a method for refining low-quality diesel oil with composite solvents. Background technique [0002] In the reprocessing process of waste plastics, waste rubber, and waste lubricating oil (referring to extraction of fuel oil), the diesel fraction generated is black and smelly due to sulfur, nitrogen compounds, and heterocyclic compounds. If it is not further refined, it cannot be used. Make engine fuel. [0003] With the increasing shortage of petroleum energy, in recent years, the refining technology of this part of diesel fraction has also made great progress. Acid-base refining, clay refining or other solvent refining technologies have been developed successively. Although these technologies can greatly improve the quality of diesel fractions, these processes eith...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G21/20
Inventor 朱光军
Owner 朱光军
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