JPS592479B2 - Method for producing high-speed diesel fuel and lubricating oil from paraffin heavy oil - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The invention of this application is to furfural-process a fraction in a predetermined selected temperature range of 180 to 320°C by atmospheric distillation of crude oil or its desalted liquid, and produce the raffinate oil. This article relates to a method for producing higher-speed diesel fuel and lubricating oil, and in particular, the raffinate oil is treated with activated clay, and the treated liquid is subjected to aluminum chloride treatment or ultrasonic treatment. The present invention relates to a method for producing high-speed diesel fuel and lubricating oil from paraffinic heavy oil through a relatively simple process by polymerizing unsaturated hydrocarbons contained in the treated liquid.

As is well known, the composition and properties of crude oil generally vary significantly depending on its production area and oil well.

Therefore, the type of petroleum product to be manufactured from it and the manufacturing process must be determined depending on the type of crude oil.

For example, in recent years, Daqing Petroleum has been developed and industrialized in China, but the crude oil extracted from it is paraffinic heavy oil, and the conventional refining process is expensive. It is undesirable because it has the disadvantage of causing a lot of economic loss.

Incidentally, the properties of Daqing Oil are shown in Table 1 below.

The purpose of the invention of this application is to study the use of paraffinic heavy oil in view of the above-mentioned characteristics and problems in the production of conventional products. Focusing on the advantageous commercialization and the fact that effective economic benefits can be obtained, the present invention aims to provide a manufacturing method that is as simple as possible.

The structure of the invention of this application in accordance with the above-mentioned object is to furfural-treat the fraction in an appropriately selected temperature range of 180 to 320°C by atmospheric distillation of crude oil or its desalted liquid, and extract the raffinate oil. After treating the treated solution with activated clay, adding aluminum chloride to the treatment solution or subjecting it to ultrasonic treatment at 5 to 500 KHz to polymerize the unsaturated hydrocarbons contained in the treatment solution, it is distilled to 180% by atmospheric distillation. ~320
A high-speed diesel fuel was obtained by extracting a fraction in a temperature range appropriately selected within the temperature range of ℃, and the residual fraction was used as a lubricating oil to obtain a high-speed diesel fuel and a lubricating oil from a paraffinic heavy oil. The gist of this is that

Next, an embodiment of the invention of this application will be described below according to each step.

First, in the invention of this application, a crude oil having properties similar to those of Daqing Petroleum or its desalted liquid is distilled under normal pressure to obtain a distillate having a temperature range appropriately selected from 180 to 320°C. Take out.

The temperature range is preferably 200 to 300°C, more preferably 200 to 280°C.

If the distillate contains fractions in the temperature range below 2000C and above 300C, high-quality high-speed diesel fuel cannot be obtained.

Next, the above-mentioned fraction is processed by applying a conventional furfural extraction method.

For example, while adding furfural to the above fraction, at room temperature,
Alternatively, after sufficient mixing and stirring under heating, the extract is separated into an extract and a raffinate by being left to stand, and the raffinate is separated into a raffinate, /l! This is done by adding water to the solution, washing with water two to three times, and removing water from the raffinate.

Through this process, naphthenic hydrocarbons, aromatic IS hydrocarbons, various cyclic hydrocarbons, organic compounds of oxygen, nitrogen, sulfur, and metals, other colored substances, resins, etc. are extracted, and barafinic components are separated from the raw oil. do.

The mixing ratio of this fraction and furfural is preferably such that 4 volumes of the fraction are mixed with 3 volumes of furfural.

Next, this raffinate is treated with activated clay, and a conventional treatment method can be applied to this treatment. For example, the raffinate can be treated with activated clay.
．． This is carried out by heating to 0 to 260°C, contacting with activated clay, and then filtering off the clay.

Therefore, the amount of activated clay used is about 4% by weight based on the raffinate, and the treatment time is preferably about 30 minutes, and the treatment temperature is 12.
About 0°C is more preferable.

This treatment can decolorize, deodorize, dehumidify, or remove suspended solids, resins, asphalt materials, oxygen compounds, nitrogen compounds, and certain sulfur compounds.

Next, add aluminum chloride to the above treatment solution, or
The unsaturated hydrocarbons in this extract are polymerized by ultrasonication.

The polymerization treatment using aluminum chloride is carried out by adding aluminum chloride to the treatment solution, treating it under heating, and then washing the treatment solution with water.

In this treatment, the amount of aluminum chloride is 2-10% by weight of the clay treatment solution, the treatment temperature is 120-150°C,
The processing time is preferably about 30 minutes.

On the other hand, the ultrasonic polymerization treatment is performed using ultrasonic waves of about 5 to 500 KHz.

As a result, the unsaturated hydrocarbons in the clay treatment liquid are polymerized, and components to become lubricating oil are produced.

In addition, the ultrasonic waves used for this polymerization are 5 KHz or less and 5 KHz or less.
Above 0.00 KHz, polymerization does not occur as desired.

Finally, the above polymerization solution was distilled under normal pressure to give a
A fraction in a predetermined temperature range of 0.degree. C. is extracted to obtain high-speed diesel fuel, and the residue is used as a base oil for lubricating oil.

However, the above temperature range is preferably 200 to 3008C,
200-280°C is more preferable.

If fractions in the temperature range below 200°C and above 300°C are included, high-quality high-speed diesel fuel cannot be obtained.

Next, specific examples will be given and the aspects thereof will be explained below.

Example 1 A 200-280°C fraction was extracted from Daqing Petroleum by atmospheric distillation.

The fraction was 11.5 volumes of crude oil, and 3 volumes of furfural was added to 4 volumes of the fraction, and the mixture was thoroughly mixed and stirred at room temperature for 1 and a half hours.
The extract is left to stand and separated into an extract and a raffinate, water is added to the raffinate, and the extract is washed with water 2 to 3 times.

Then, the raffinate was heated at 120°C using 4 parts by weight of activated clay.
, for 60 minutes, and the used clay was filtered off to obtain a colorless and transparent treatment solution.

The treatment solution is subjected to ultrasonic treatment at 250 KHz for 2 to 3 minutes to remove unsaturated hydrocarbons in the treatment solution.

Next, the polymerization treatment solution was distilled at normal pressure to 200-280°C.
The fraction is taken out and immersed in high speed diesel fuel to obtain the base oil for lubricating oil as a residual fraction.

The properties of the high-speed diesel fuel are shown in Table 2 below, and the properties of the lubricating oil are shown in Table 3.

Example 2 Similarly, the 200-280°C fraction obtained by atmospheric distillation of Daqing Petroleum was taken out and treated with furfural and activated clay in the same manner as in Example 1 (however, the treatment time was 30 minutes).

Add 2 parts by weight of aluminum chloride to the treatment solution, and add 12 parts by weight of aluminum chloride.
The mixture was mixed and stirred at 0° C. for 30 minutes to polymerize unsaturated hydrocarbons in the treated solution, and the treated solution was then washed with water.

The polymerization water washing solution was distilled at normal pressure to 2'00 to 280°C.
This distillate is extracted from high speed diesel fuel and the distillate is used as a base oil for lubricating oil.

Example 3 The treatment process is almost the same as in Example 2, but the activated clay treatment time is 60 minutes.

Example 4 Similarly, Daqing Petroleum was distilled under normal pressure to obtain a fraction of 20°C to 280°C.

After subjecting this fraction to the same furfural treatment and activated clay treatment as in Example 1, aluminum chloride in an amount of 2 parts by weight of the treated liquid was added and mixed and stirred at 150°C for 30 minutes to polymerize unsaturated hydrocarbons. After that, wash with water to remove aluminum chloride.

The unsaturated hydrocarbon polymerization solution is distilled at atmospheric pressure to give a
The distillate at 50°C is taken out to obtain a high-speed diesel fuel oil as a distillate and a lubricating oil as a distillate.

Example 5 The treatment process is almost the same as in Example 4, except that the activated clay treatment time is 60 minutes and the amount of aluminum chloride added is 4 parts by weight.

Example 6 The treatment process is almost the same as in Example 5, except that aluminum chloride is added in an amount of 10% by weight.

As mentioned above, according to the invention of this application, it is possible to produce high-quality high-speed diesel fuel from paraffinic heavy oil in a relatively simple process, and it is possible to effectively utilize paraffinic heavy oil. At the same time, it is possible to provide an industrially and economically advantageous method.

Test Example Daqing crude oil is distilled under normal pressure, and the fraction at 200-280°C is taken out and treated with furfural and activated clay.

Next, add aluminum chloride to 10% by weight, and reduce the temperature to 120%.
Stir while maintaining the temperature at °C.

Thereafter, aluminum chloride was removed by washing with water, and this was distilled again under normal pressure to take out the fraction with a temperature north of 280°C, which was designated Dimble/16.1.

Daqing crude oil is distilled under atmospheric pressure, and the 280-300°C fraction is extracted and subjected to furfural and activated clay treatment.

Next, ultrasonic waves with a frequency of 28 KHz and an output of 600 W are irradiated for 2 minutes, and this is again distilled under normal pressure to take out a fraction with a temperature of 300° C. or higher, which is used as sample plate 2.

Daqing crude oil is distilled under atmospheric pressure, and the 200-280°C fraction is extracted and subjected to furfural and activated clay treatment.

Next, ultrasonic waves with a frequency of 28 KHz and an output of 600 W are irradiated for 5 minutes, and this is distilled again under normal pressure to take out a fraction with a temperature of 300'C or higher, which is designated as sample /I63.

Daqing crude oil is distilled under atmospheric pressure, and the fraction at 200-280°C is taken out and subjected to furfural and activated clay treatment to obtain sample/I64.

When the above samples /V; 1 to 4 were analyzed by gas chromatography, CI3 to C3 were found from sample /i61.
1 component is detected from sample plate 2, CI4 to 0331 components are detected from sample plate 3, CI3 to C3□ components are detected from sample plate 3, and C8 to C28 components are detected from sample /I64.

In addition, regarding the content of each component, sample/161-3
In both cases, the components with large mass numbers are increased compared to sample/164.

Thus, it can be seen that a polymerization reaction is caused by ultrasonic treatment or addition of aluminum chloride.

Therefore, the high-speed diesel fuel produced by the invention of this application is optimal for high-speed diesel engines,
Furthermore, the lubricating oil can be effectively used as a high-quality precision machine oil.

Claims (1)

[Claims] 1.18 by atmospheric distillation of crude oil or its desalted liquid
In a method for producing high-speed diesel fuel and lubricating oil from paraffinic heavy oil by treating a fraction in a predetermined temperature range of 0 to 320°C with furfural treatment, the raffinate oil is is treated with activated clay, aluminum chloride is added to the treated solution to polymerize the unsaturated hydrocarbons contained in the treated solution, and then the treated solution is distilled at a specified temperature in the range of 180 to 320°C under atmospheric pressure. extracting fractions in selected temperature ranges to obtain high-speed diesel fuel;
A method for producing a high-speed diesel fuel lubricating oil from paraffinic heavy oil, characterized in that the residue is used as a lubricating oil. 2 Atmospheric distillation of crude oil or its desalted liquid
A method for producing high-speed diesel fuel and lubricating oil from paraffinic heavy oil by treating the fraction 2 with furfural in a predetermined temperature range of 80 to 320°C and using the raffinate from the raffinate. The oil is treated with activated clay, the treated liquid is subjected to ultrasonic treatment to polymerize the unsaturated hydrocarbons contained in the treated liquid, and then the treated liquid is distilled under atmospheric pressure at a temperature of 180 to 320°C. High-speed diesel fuel is obtained by extracting the fraction in a predetermined selected temperature range. A method for producing high-speed diesel fuel and solid lubricating oil from paraffinic heavy oil, characterized in that the residual content is used as a lubricating oil.