Production method of polyolefin white oil

A production method and technology of polyolefin white oil, which is applied in the production field of polyolefin white oil, can solve the problems that the hydrogenation catalyst cannot meet the requirements and cannot obtain food-grade white oil, etc., and achieves strong product market adaptability and guaranteed hydrogenation effect , The effect of reducing the viscosity of raw materials
CN104232159AActive Publication Date: 2014-12-24BEIJING YOUGONG SCI & TECH
5 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING YOUGONG SCI & TECH
Publication Date
2014-12-24

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a production method of polyolefin white oil. The production method comprises the following steps: (1) by taking paraffin and naphthene based lubricating base oil as raw material oil, blending the paraffin and naphthene based lubricating base oil, and dehydrating; (2) inputting the processed raw material oil into two tandem fixed bed reactors with noble metal catalysts, and performing two-section high-pressure hydrogenation treatment in the presence of a hydrorefining catalyst; and (3) dehydrating and refining to obtain the high-viscosity food-grade polyolefin white oil. The production method has the beneficial effects that the reaction temperature can be reduced, the degradation of the raw material viscosity during hydrorefining can be reduced, and the hydrogenation effect of the high-viscosity white oil can be ensured; the change of pour points and flash points can be reduced; the requirements of saturated aromatic hydrocarbons can be met; the strict requirements of the polyolefin white oil on the water content can be met; a process is flexible to perform and the polyolefin white oil is strong in market adaptability.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a production method of polyolefin white oil.

[0002] Background technique

[0003] Food-grade white oil is an ultra-deeply refined colorless, tasteless, odorless and non-corrosive high-value-added special white oil, composed of saturated alkanes (alkanes and cycloalkanes), of which aromatics, sulfur, nitrogen, oxygen, etc. are harmful The impurity content is approximately zero (or extremely low), food-grade white oil has good chemical inertness and excellent light and heat stability; the differences of various white oils are mainly: kinematic viscosity, chromaticity, easy carbide and ultraviolet absorbance Wait. There are two main methods for the deep refining of white oil: sulfonation method and hydrogenation method.

[0004] Among them, the sulfonation method has been phased out due to its high pollution, low yield, and product quality that cannot meet food-grade requirements; while the more advanced hydrogenation method ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More