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Method for preparing mesophase pitch from hydrocracking tail oil

A technology for hydrocracking tail oil and mesophase pitch is applied in the processing of tar pitch/petroleum pitch/natural pitch, chemically processing tar pitch/petroleum pitch/natural pitch, petroleum industry, etc. High energy consumption, complex process and other problems, to achieve the effect of low price, good optical structure and simple preparation process

Active Publication Date: 2017-03-08
广饶县康斯唯绅新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned methods for preparing mesophase pitch all have problems such as complex process, high cost, and high energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1, add 200g of DG-FBWY and 10g of phenolic resin into the autoclave, seal it and purge it with argon, raise the temperature to 400°C, and carry out carbonization at a constant pressure of 9MPa for 12h under stirring at 600r / min to obtain 99vol% optical Anisotropic mesophase pitch.

Embodiment 2

[0013] Example 2, add 210g of GD-SPWY and 8g of styrene-butadiene rubber into the autoclave, seal it and blow it with nitrogen, raise the temperature to 410°C, and carry out carbonization at a constant pressure of 8MPa for 10h under stirring at 500r / min to obtain 96vol% optical components. Anisotropic mesophase pitch.

Embodiment 3

[0014] Example 3, add 210g of SZ-SPWY and 15g of styrene-butadiene rubber into the autoclave, seal it and blow it with nitrogen, raise the temperature to 420°C, and carry out carbonization at a constant pressure of 6MPa for 15h under stirring at 600r / min to obtain 99vol% optical components. Anisotropic mesophase pitch.

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Abstract

The invention relates to the field of a petroleum deep processing technology, in particular to a method of preparing meso-phase pitch by hydro-cracking tail oil. The method is characterized by comprising the steps of adopting hydro-cracking tail oil as a raw material, adding 1-8wt% of co-carbonization additive, and charring the hydrocracking tail oil to obtain the meso-phase pitch in an inert gas atmosphere and a stirring condition at 380-420 DEG C and 6-10 MPa. Optimally, the hydro-cracking tail oil is the hydro-cracking tail oil of naphthenic crude atmospheric pressure residual oil, the co-carbonization additive is one of phenolic resin and butadiene styrene rubber, the inert gas comprises either argon or nitrogen, and the stirring condition is 400-900r / min. The method of preparing the meso-phase pitch by the hydro-cracking tail oil has the outstanding advantages of extensive resources and low price; furthermore, the preparation process is simple; in addition, the prepared meso-phase pitch is good in optical structure and high in inter-phase content.

Description

technical field [0001] The invention relates to the technical field of petroleum deep processing, in particular to a method for preparing mesophase pitch from hydrocracking tail oil. Background technique [0002] In recent years, with the deepening of the world's energy crisis and the increasingly serious deterioration of petroleum, the development, processing and utilization of petroleum secondary residues have become an important branch of petrochemistry. Mesophase pitch is a kind of nematic liquid crystal mixture composed of various flat disk-shaped condensed ring aromatic hydrocarbons, also known as liquid crystal phase pitch. Mesophase pitch has the characteristics of liquid crystals and has special physical properties in terms of heat, light, electricity, and magnetism. Mesophase pitch has a wide range of sources, and is recognized as a high-quality raw material for the production of many functional materials due to its advantages of low price, excellent performance a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10C3/02
CPCC10C3/026
Inventor 刘东杨远兮吴中华侯绪连娄斌李明杜辉李敏张亚东于冉牛建萍常光凯叶家顺
Owner 广饶县康斯唯绅新材料有限公司
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