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A kind of utilization method of catalytic oil slurry

A technology of catalytic oil slurry and curing agent, which is applied in the field of road asphalt production, can solve the problems of poor temperature sensitivity and anti-aging performance, and achieve the effects of increasing the flash point, improving the economic benefits of the enterprise, and improving the temperature sensitivity

Active Publication Date: 2020-03-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of the invention can make full use of the catalytic oil slurry, and can improve the temperature sensitivity and aging resistance of the catalytic oil slurry, and improve the flash point of the vacuum residue, and can be used to prepare road asphalt or road asphalt with excellent performance raw materials for production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Heat the catalytic oil slurry to 190°C, add powdered condensed aluminum phosphate (aluminum tripolyphosphate, fineness 800 mesh) into the catalytic oil slurry, of which the catalytic oil slurry accounts for 98.7wt% of the total, and the condensed aluminum phosphate accounts for the total The amount of 1.3wt%, at 190 ℃, with ordinary stirring and mixing reaction for 240min, and then the modified catalytic oil slurry was obtained.

[0031] The above-mentioned modified catalytic oil slurry is added to the atmospheric residue (25 DEG C density 0.975g / cm 3 , softening point 32.5°C, flash point 221°C, the same below), in which the proportion of modified catalytic oil slurry accounts for 5wt%, and then vacuum distillation is carried out to distill light fractions <515°C, and the yield of light fractions is 36wt% , to obtain a vacuum residue with excellent properties. Its properties are shown in Table 2.

Embodiment 2

[0033] Catalytic oil slurry accounted for 95.0wt% of the total, condensed aluminum phosphate (aluminum dihydrogen tripolyphosphate, fineness 800 mesh) accounted for 5.0wt% of the total, other conditions were the same as in Example 1, and modified catalytic oil slurry was obtained.

[0034] The conditions for vacuum distillation after the modified catalytic oil slurry is mixed with the atmospheric residue are the same as in Example 1. The properties of the vacuum residue are shown in Table 2.

Embodiment 3

[0036] The catalytic oil slurry accounted for 99.8wt% of the total amount, and the condensed aluminum phosphate accounted for 0.2wt% of the total amount. Other conditions were the same as in Example 1 to obtain a modified catalytic oil slurry.

[0037] The conditions for vacuum distillation after the modified catalytic oil slurry is mixed with the atmospheric residue are the same as in Example 1. The properties of the vacuum residue are shown in Table 2.

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Abstract

The invention discloses a utilization method of a catalytic oil slurry. The method comprises the following steps: (1) adding a modifier to the catalytic oil slurry, and performing stirring to preparea modified catalytic oil slurry; and (2) mixing the obtained modified catalytic oil slurry with atmospheric pressure residual oil, and performing vacuum distillation to obtain vacuum residual oil, wherein total raw materials in step (1) comprise, by mass, 95.0-99.9% of the catalytic oil slurry and 0.1-5.0% of the modifier; and the modifier is one or more of a condensed aluminum phosphate curing agent and a silicon phosphate curing agent. The method can fully utilize the catalytic oil slurry, improve the problems of poor temperature sensitivity and poor anti-aging performance of the catalytic oil slurry and increase the flash point of the vacuum residual oil, and can be used to prepare road asphalt having excellent performances or a road asphalt production raw material.

Description

technical field [0001] The invention relates to a utilization method of catalytic oil slurry, in particular to a method for producing road asphalt. Background technique [0002] Heavy oil catalytic cracking is one of the important secondary processing methods in petroleum processing. In order to reduce catalyst carbon deposition and prolong its life, a certain proportion of oil slurry is usually thrown out of the catalytic cracking unit, most of which are used to produce fuel oil or mixed with residual oil for further processing. Coking unit, however, due to the presence of catalyst particles in FCC oil slurry, its combustion performance will be affected. In addition, from the principle of benefit maximization, it is not the best way to use it. [0003] In order to improve the utilization value of FCC oil slurry, some enterprises began to use oil slurry for asphalt production. The most commonly used technology is to mix oil slurry with crude oil for vacuum distillation to p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G7/00C10G7/06
CPCC10G7/006C10G7/06C10G2300/4012
Inventor 郭皎河刘树华宁爱民傅丽张建峰姚汉荣
Owner CHINA PETROLEUM & CHEM CORP
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