CN1082083C - Solvent oil producing process - Google Patents
Solvent oil producing process Download PDFInfo
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- CN1082083C CN1082083C CN99111814A CN99111814A CN1082083C CN 1082083 C CN1082083 C CN 1082083C CN 99111814 A CN99111814 A CN 99111814A CN 99111814 A CN99111814 A CN 99111814A CN 1082083 C CN1082083 C CN 1082083C
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- oil
- solvent oil
- kerosene
- hydrogen
- solvent
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Abstract
The present invention relates to a method for producing solvent oil. A used raw material is liquid paraffin which is obtained for kerosene distillate of 130 to 260 DEG C after the kerosene distillate is dewaxed by a molecular sieve. Finished product solvent oil is obtained by hydrogenation refining under the action of a prevulcanized catalyst W-Ni/Al2O3 or W-Mo-Ni/Al2O3. The technological conditions of the hydrogenation refining comprise hydrogen partial pressure of 3.0 to 6.0MPa, reaction temperature of 220 to 280 DEG C, volume space speed of 0.5 to 2.0h<-1> and a hydrogen to oil volume ratio of 300 to 600. A product produced by the method not only has water white color, innocuity or no harm, but also has no odor.
Description
The present invention relates to a kind of production method of solvent oil, especially relate to the refining method of producing solvent oil of a kind of kerosene(oil)fraction.
Kerosene(oil)fraction also has greatly and uses as special solvent except that as rocket engine fuel, the illuminating kerosene.It is widely used in field of fine chemical such as air freshener, aerial fog type kill mosquito sterilant, washing composition, lustering agent, textile printing solvent and spices extracting, modulation makeup, belongs to fine chemistry industry one of special solvent oil.
But, when selecting basic material, no matter be virgin kerosene, or hydrocracking kerosene, a kind of irritating smell is in use all arranged, i.e. the stink of kerosene.Show according to data, when containing the mercaptan of 0.0001mg/L in the air, can smell stink.The smell of kerosene, main relevant with wherein sulphur, nitrogen compound and group composition.Discover that the factor that the kerosene smell is had the greatest impact is successively: sulfocompound, nitrogenous compound, aromatic hydrocarbons, naphthenic hydrocarbon, isomerization alkanes, normal paraffin.
The traditional method of producing special solvent oil with kerosene(oil)fraction is the clay-filtered method of soda acid, and these method processing condition relax, and equipment is simple and the construction investment expense is low, but quality product is not high, yield is low, and production process produces a large amount of acid sludges, alkaline residue and waste water, and equipment corrosion is serious.Up-to-date production method is the patent CN 1 that Xingda Petro-chemical Science and Technology Industry and Trade Corp. Nanjing invents, 157,847A, it is made with extra care with the method for hydrogenation, and stock oil and hydrogen react under the nickel catalyzator existence condition, and this method condition relaxes, the liquid yield height, it is nontoxic to generate oil, and does not have environmental issue such as the three wastes, and its deficiency is to guarantee that product does not have smell.
Industrial, dewaxing by molecular sieve art breading kerosene(oil)fraction commonly used is produced petroleum wax.Its principle is to utilize the selective adsorption performance of molecular sieve, make the normal paraffin in the kerosene(oil)fraction enter liquid wax component, liquid wax yield is generally 40%～60%, and most sulphur, nitrogen compound and isomerization alkanes, naphthenic hydrocarbon, aromatic hydrocarbons enter in pressed oil and the intermediate oil.
The production method that the purpose of this invention is to provide a kind of solvent oil, to produce a kind of fine solvent oil, this solvent oil is the product colour water-white not only, and is nontoxic, and tasteless.
The production method of solvent oil provided by the invention, raw material are the liquid wax of 130～260 ℃ of kerosene(oil)fractions gained behind dewaxing by molecular sieve, and after hydrofining, the treated oil that obtains is the finished product solvent oil, and catalyzer used in the unifining process adopts W-Ni/Al
2O
3Or W-Mo-Ni/Al
2O
3, give sulfuration before the use earlier, processing condition are: hydrogen dividing potential drop 3.0～6.0MPa, 220～280 ℃ of temperature of reaction, volume space velocity 0.5～2.0h
-1, hydrogen to oil volume ratio 300～600.
In the production method of solvent oil provided by the invention, adopt the wet method sulfuration when catalyzer gives sulfuration, vulcanizing agent is a dithiocarbonic anhydride.
Solvent oil production method provided by the invention, be the liquid wax of behind dewaxing by molecular sieve, producing with kerosene(oil)fraction, behind hydrofining technology disclosed by the invention, make solvent oil, because the overwhelming majority influences the sulphur of smell in the kerosene, nitrogen compound, isomerization alkanes enters pressed oil and middle runnings behind dewaxing by molecular sieve, contain seldom these materials in the liquid wax, therefore the solvent oil of producing with the present invention sulphur content＜1 μ g/g not only, nitrogen content＜1 μ g/g, aromaticity content＜0.1% (weight), color water-white, nontoxic, and normal paraffin content 〉=99.0% is with CN 1,157,847A compares, and its unusual effect is that the product of producing does not have smell.
The solvent oil that the present invention produces used so both can be used as the high-quality aerosol solvent because of not having a bit stink, strange taste, also can be applicable to field of fine chemical such as edible oil processing, food product pack, makeup mediation.
Further specify effect of the present invention with specific embodiment below.
Embodiment 1
Adopt liquid wax as shown in table 1, under the effect of the hydrofining technology condition shown in catalyzer shown in the table 3 and the table 2, liquid wax is carried out hydrofining, the character of products obtained therefrom is as shown in table 1.
Table 1 raw material and product property
Table 2 hydrofining technology condition
| Project | The hydrofining technology condition |
| Catalyst reaction temperatures, ℃ hydrogen dividing potential drop, MPa volume space velocity, h -1Hydrogen-oil ratio, v/v | ?W-Ni/Al 2O 3?260 ?4.0 ?1.5 ?300 |
Table 3 catalyzer main physical and chemical
| Chemical constitution, % WO 3The NiO carrier | ?22.6 ?2.1 ?Al 2O 3 |
| The physical properties specific surface area, m 2/ g pore volume, ml/g tap density, g/ml | ?135 ?0.3 ?1.028 |
Embodiment 2
Liquid wax character is as shown in table 4, and catalyst system therefor and hydrofining technology condition are shown in embodiment 1, and this liquid wax is as shown in table 4 through the character of products obtained therefrom after the hydrofining.
Table 4 raw material and product property
Claims (2)
1. the production method of a solvent oil, it is characterized in that: raw material is the liquid wax of 130～260 ℃ of kerosene(oil)fractions gained behind dewaxing by molecular sieve, after hydrofining, the treated oil that obtains is the finished product solvent oil, and catalyzer used in the unifining process adopts W-Ni/Al
2O
3Or W-Mo-Ni/Al
2O
3, give sulfuration before the use earlier, processing condition are: hydrogen dividing potential drop 3.0～6.0MPa, 220～280 ℃ of temperature of reaction, volume space velocity 0.5～2.0h
-1, hydrogen to oil volume ratio 300～600.
2. solvent oil production method according to claim 1 is characterized in that described catalyzer adopted the wet method sulfuration before using, and vulcanizing agent is a dithiocarbonic anhydride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99111814A CN1082083C (en) | 1999-07-22 | 1999-07-22 | Solvent oil producing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99111814A CN1082083C (en) | 1999-07-22 | 1999-07-22 | Solvent oil producing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1258720A CN1258720A (en) | 2000-07-05 |
| CN1082083C true CN1082083C (en) | 2002-04-03 |
Family
ID=5275310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99111814A Expired - Fee Related CN1082083C (en) | 1999-07-22 | 1999-07-22 | Solvent oil producing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1082083C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357401C (en) * | 2003-12-26 | 2007-12-26 | 南化集团研究院 | Process for producing hydrogenation refining solvent oil |
| CN100348702C (en) * | 2005-10-28 | 2007-11-14 | 中国石油化工集团公司 | Process for producing fuel oil |
| CN101921621B (en) * | 2009-06-09 | 2013-05-01 | 中国石油化工股份有限公司 | Method for manufacturing isoparaffin solvent oil |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144259A (en) * | 1995-08-29 | 1997-03-05 | 巴陵石化长岭炼油化工总厂 | Method for producing extraction solvent naphtha by catalytic reforming device |
| CN1157847A (en) * | 1996-12-26 | 1997-08-27 | 南京兴达石油化工科技工贸公司 | Method for producing special kerosene type solvent naphtha |
-
1999
- 1999-07-22 CN CN99111814A patent/CN1082083C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144259A (en) * | 1995-08-29 | 1997-03-05 | 巴陵石化长岭炼油化工总厂 | Method for producing extraction solvent naphtha by catalytic reforming device |
| CN1157847A (en) * | 1996-12-26 | 1997-08-27 | 南京兴达石油化工科技工贸公司 | Method for producing special kerosene type solvent naphtha |
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| Publication number | Publication date |
|---|---|
| CN1258720A (en) | 2000-07-05 |
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Address after: 100029 Beijing City, Chaoyang District Hui Street No. 6 Patentee after: China Petrochemical Group Corp. Patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Address before: 100029 Beijing City, Chaoyang District Hui Street No. 6 Patentee before: China Petrochemical Group Corp. Patentee before: Luoyang Petrochemical Engineering Co., China Petrochemical Group |
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