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Method for producing food grade white oil by hydrogenating tail oil

A hydrogenation tail oil, food-grade technology, which is applied in the field of hydrogenation tail oil production of food-grade white oil, can solve problems such as complex production process, and achieve the effects of more secondary pores, simplified process flow, and small crystal grains

Active Publication Date: 2008-10-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technologies for producing white oil with hydrogenated tail oil as raw material all require the process of solvent dewaxing, catalytic dewaxing or isomerization dewaxing to reduce the pour point of hydrogenated tail oil before producing food-grade white oil. Therefore, the production process is more complicated

Method used

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  • Method for producing food grade white oil by hydrogenating tail oil
  • Method for producing food grade white oil by hydrogenating tail oil
  • Method for producing food grade white oil by hydrogenating tail oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 227.1 grams of amorphous silicon aluminum (SiO 2 The content is 45wt%, the pore volume is 0.75ml / g, and the specific surface area is 390m 2 / g), 18.8 grams of modified beta molecular sieve, 65.8 grams of macroporous alumina (pore volume is 1.0ml / g, specific surface area is 460m 2 / g) put it into the roller compactor, mix and grind for 30 minutes, and then add 288.5 grams of binder (with a pore volume of 0.4 ml / g and a specific surface area of ​​280 m 2 / g of small pore alumina 107.1g, HNO 3 The molar ratio to alumina is 0.3), rolling for 30 minutes, then adding 60 ml of water, continuing rolling until a paste can be squeezed, extruding strips, and drying the extruded strips at 110° C. for 6 hours. The drying strip was heated to 580°C and calcined for 4 hours to obtain a carrier. The carrier was impregnated with an impregnation solution containing tungsten and nickel at room temperature for 2 hours, dried at 120° C. for 6 hours, and calcined at a programmed temperatur...

Embodiment 2

[0033] 252.8 grams of amorphous silicon aluminum (SiO 2 The content is 65wt%, the pore volume is 0.58ml / g, and the specific surface area is 340m 2 / g), 9.4 grams of modified beta molecular sieve, 41.1 grams of macroporous alumina (pore volume is 0.75ml / g, specific surface area is 360m 2 / g) put it in a roller compactor for 20 minutes, then add 323.1 grams of binder (with a pore volume of 0.45ml / g and a specific surface area of ​​300m 2 / g of small pore alumina 120.0g, HPO 3 The molar ratio to alumina is 0.2), continue rolling for 40 minutes, then add 55 ml of water, roll until it can be squeezed into paste, extrude strips, and dry the extruded strips at 140° C. for 3 hours. The drying strip was heated to 530°C and calcined for 5 hours to obtain a carrier. The carrier was impregnated with an impregnation solution containing tungsten and nickel at room temperature for 4 hours, dried at 130° C. for 3 hours, and calcined at 460° C. for 5 hours in a programmed manner to obtain c...

Embodiment 3

[0036] 201.4 grams of amorphous silicon aluminum (SiO 2 The content is 30wt%, the pore volume is 0.89ml / g, and the specific surface area is 460m 2 / g), 31.3 grams of modified beta molecular sieves, 82.8 grams of macroporous alumina (same as Example 1) were put into the roller compactor and mixed for 40 minutes, then 265.4 grams of binder (same as Example 1) were added, and the Rolling for 25 minutes, then adding 30 ml of water, rolling until a paste can be squeezed, extruding strips, and drying the extruded strips at 130°C for 4 hours. The drying strip was heated to 680°C and calcined for 2.5 hours to obtain a carrier. The carrier was impregnated with an impregnation solution containing tungsten and nickel at room temperature for 8 hours, dried at 130°C for 4 hours, and calcined at 530°C for 3 hours to obtain catalyst C. The physicochemical properties are shown in Table 1.

[0037] The properties of the modified β molecular sieve are: molecular sieve SiO 2 / Al 2 O 3 Weig...

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Abstract

The present invention provides method of producing food grade white oil with hydrogenated tail oil. Hydrogenated tail oil as material is treated through one high pressure hydrogenating and refining process under proper condition to obtain the food grade white oil product. The hydrogenated tail oil is produced with vacuum gas oil, refined solvent oil or Fischer-Tropsch synthesized oil as material and through hydrocracking or hydrotreating process under the action of hydrogenating catalyst, and has pour point lower than -10deg.c.

Description

technical field [0001] The invention relates to a method for producing food-grade white oil from hydrogenated tail oil. The hydrogenated tail oil obtained by selecting a hydrogenation catalyst with strong isomerization function is processed, and the method for producing food-grade white oil is directly supplemented by high-pressure hydrogenation. Background technique [0002] White oil is a kind of petroleum product obtained by deep refining of lubricating oil fractions to remove impurities such as aromatic hydrocarbons and sulfides in lubricating oil fractions. It is colorless, odorless and chemically stable, and is widely used in the fields of chemical industry, daily necessities, food, medicine, textile and agriculture. According to different uses and refining depth, white oil can be divided into industrial, cosmetic, food and pharmaceutical categories. Among them, food-grade white oil is the most refined. [0003] The white oil production process is mainly the process ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02A23D9/00
Inventor 关明华全辉姚春雷刘平林振发
Owner CHINA PETROLEUM & CHEM CORP
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