Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil

A technology for deasphalting oil and processing oil, which is applied in the petroleum industry, petroleum wax recovery, lubricating composition, etc. Good physical properties and good compatibility

Inactive Publication Date: 2008-05-21
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, in the preparation of rubber for wheel bases, since the compatibility between processing oil and rubber is emphasized, the aromatic component in the processing oil is particularly important. However, on the other hand, if the aromatic component is considered too much, it will cause the processing oil Carcinogenicity increases, and it is necessary to remove aromatic components that are the culprit of carcinogenicity while maintaining good compatibility between processing oil a

Method used

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  • Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil
  • Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil
  • Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil

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no. 1 Embodiment approach

[0087] Next, the processing oil and the manufacturing method of the processing oil in the first embodiment of the present invention will be described.

[0088] The processed oil of this embodiment adopts the deasphalted oil obtained by deasphalting the vacuum residual oil of crude oil as a raw material, and has the following properties (a) to (f):

[0089] (a) polycyclic aromatic hydrocarbon (PCA) content: less than 3% by mass;

[0090] (b) Viscosity (100°C): 40-70mm 2 / s;

[0091] (c) Aniline point: 85-100°C;

[0092] (d) Flash point: above 250°C;

[0093] (e) content of aromatic hydrocarbons: 40-55% by mass;

[0094] (f) Content of polar substances: 10-15% by mass;

[0095] (a) Polycyclic aromatic hydrocarbon (PCA) content

[0096] The PCA content of the processing oil of this embodiment is less than 3% by mass, preferably less than 2.5% by mass. Considering the problem of carcinogenicity, in regions such as Europe, the handling of mineral oil with a PCA of 3% by mass...

no. 2 Embodiment approach

[0166] Next, the processing oil and the method for producing the processing oil in the second embodiment of the present invention will be described.

[0167] The processed oil of this embodiment is a deasphalted oil obtained by deasphalting the vacuum residue of crude oil by solvent extraction, and the obtained extract and lubricating oil base oil with polycyclic aromatic hydrocarbon content (PCA) less than 3% by mass The one obtained by mixing has the following properties (a), (i) to (n):

[0168] (a) polycyclic aromatic hydrocarbon (PCA) content: less than 3% by mass;

[0169] (i) Viscosity (100°C): 30-80mm 2 / s;

[0170] (j) Aniline point: below 90°C;

[0171] (k) Flash point: above 240°C;

[0172] (l) Content of benzo(a)pyrene: 1 mass ppm or less;

[0173] (m) Content of specific aromatic compounds: 10 mass ppm or less;

[0174] (n) Content of polar substances: 10 to 30% by mass;

[0175] (a) Polycyclic aromatic hydrocarbon (PCA) content

[0176] The PCA content of...

Embodiment 1

[0239] (Deasphalting process)

[0240] Using propane as a solvent, deasphalting the vacuum residual oil obtained from the atmospheric distillation and vacuum distillation of Middle Eastern crude oil to obtain deasphalting oil A. The yield of the deasphalted oil was 38% by mass based on the vacuum residual oil, and the viscosity of the deasphalted oil A at 100°C was 37.6mm 2 / s.

[0241] (Dewaxing process)

[0242] Using a mixed solvent of methyl ethyl ketone and toluene (mixing ratio: methyl ethyl ketone / toluene=40 / 60), dewax the deasphalted oil A so that the pour point is 12.5°C to obtain dewaxed oil a. The yield of dewaxed oil A was 93% by mass based on deasphalted oil.

[0243] (Solvent extraction process)

[0244] Further, this dewaxed oil A was subjected to solvent extraction using furfural as a solvent with a solvent ratio of 10 and an extraction temperature of 145° C. to obtain extract A at a yield of 62% by mass based on deasphalted oil. This extract A was used a...

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Abstract

Disclosed are: a process oil produced by using a deasphalted oil which is produced by deasphalting a vacuum residual oil from crude oil as a starting material, the process oil having the following properties (a) to (f) and; a process for producing the process oil: (a) polycyclic aromatic hydrocarbon (PCA) content: less than 3% by mass; (b) viscosity (at 100 DEG C): 40 to 70 mm<2>/s; (c) aniline point: 85 to 100 DEG C; (d) flash point: 250 DEG C or higher; (e) aromatic hydrocarbon content: 40 to 55% by mass; and (f) polar substance content: 10 to 15% by mass. Also disclosed are: a process oil produced by mixing an extract which is produced by deasphalting a vacuum residual oil from crude oil and then extracting the resultant product with a solvent with a lubricating base oil which has a polycyclic aromatic hydrocarbon (PCA) content of less than 3% by mass, the process oil having the following properties (a) and (i) to (n) and; a process for producing the process oil: (a) polycyclic aromatic hydrocarbon (PCA) content: less than 3% by mass; (i) viscosity (at 100 DEG C): 30 to 80 mm<2>/s; (j) aniline point: 90 DEG C or lower; (k) flash point: 240 DEG C or higher; (l) benzo(a)pyrene content: 1 ppm by mass or less; (m) content of specific aromatic hydrocarbons: 10 ppm by mass or less; and (n) polar substance content: 10 to 30% by mass.

Description

technical field [0001] The present invention relates to a process oil used in natural rubber and synthetic rubber to form a rubber composition, a raw material deasphalted oil and an extract used for the production of the process oil, and a process oil production method. Background technique [0002] Rubber materials used in tire manufacturing are usually mixed with processing oil in order to improve the mechanical properties and processability of the rubber materials. In addition to being used for rubber materials such as natural rubber and synthetic rubber, this processing oil can also be used as a plasticizer for thermoplastic resins, a component of printing inks, and a lubricating oil or solvent component for softeners of recycled asphalt, etc. . [0003] In the case of using this processing oil as an additive for rubber, the by-product extract produced when the paraffinic base oil was prepared by solvent refining has been used in the past. Carcinogenic aroma oils for r...

Claims

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Application Information

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IPC IPC(8): C08L21/00C10G73/06C10M101/02C10M177/00C10N20/00C10N20/02C10N30/00C10N40/00C10N70/00
Inventor 田中明示中村正司手岛一裕阿部明仁高崎正己
Owner IDEMITSU KOSAN CO LTD
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