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Method for performing residual oil hydrogenation reaction in high gravity reactor

A high-gravity reactor and residual oil hydrogenation technology, applied in chemical instruments and methods, chemical/physical/physicochemical processes of energy application, hydrocarbon oil treatment, etc., can solve problems such as difficult to meet requirements, and reduce reaction pressure , Efficient mass transfer efficiency, high mass transfer efficiency

Active Publication Date: 2018-02-13
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to meet the requirements of higher-level residual oil hydrogenation reaction using the existing high-gravity reactor, which is largely caused by the solubility of hydrogen in the residual oil during the residual oil hydrogenation reaction process.

Method used

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  • Method for performing residual oil hydrogenation reaction in high gravity reactor
  • Method for performing residual oil hydrogenation reaction in high gravity reactor

Examples

Experimental program
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Effect test

Embodiment 1

[0057] Such as figure 2 Shown, a method for hydrogenation of residual oil in a high gravity reactor to remove sulfur and nitrogen in the residual oil and vanadium and nickel in metals;

[0058] The temperature of the residual oil hydrogenation reaction in the high gravity reactor is 330-460°C, the pressure is 4-9MPa, and the gas flow rate is controlled to be 1 m 3 / h, the liquid flow rate is 10L / h, the catalyst is packed in the rotor area in a disorderly bulk manner, the mass fraction of sulfur in the imported residual oil is 0.6%, the mass fraction of nitrogen is 0.8%, and the vanadium content is 0.98μg / g , The nickel content is 60μg / g, and the speed is 1600rpm;

[0059] After the reaction, the final liquid outlet desulfurization rate reached 85%, the denitrification rate reached 25%, the vanadium content was 0.55 μg / g, and the nickel content was 45 μg / g. Using a conventional supergravity reactor (such as the one disclosed in Chinese Patent Application CN103102942A), the liquid ...

Embodiment 2

[0061] Such as figure 2 As shown, a method for hydrogenation of residual oil in a high-gravity reactor to remove sulfur, nitrogen and vanadium and nickel from metals in the residual oil; the operating steps are the same as those in Example 1, except that:

[0062] Under the operating conditions of the speed of 2400rpm, the temperature of 550°C and the pressure of 10MPa, the final liquid outlet desulfurization rate after the reaction reached 87%, the denitrification rate reached 28%, the vanadium content was 0.50μg / g, and the nickel content was 35μg / g.

[0063] Using a conventional supergravity reactor (such as the one disclosed in Chinese Patent Application CN104419454A), the liquid outlet desulfurization rate is ≤80%, the denitrification rate is ≤21%, the vanadium content is 0.73μg / g, and the nickel content is 55μg / g . The invention is superior to the existing hydrogenation process of supergravity reactor.

Embodiment 3

[0065] Such as figure 2 As shown, a method for hydrogenation of residual oil in a high-gravity reactor to remove sulfur, nitrogen and vanadium and nickel from metals in the residual oil; the operating steps are the same as those in Example 1, except that:

[0066] The rotor area of ​​the rotating bed is divided into 8 layers of concentric rings. The first layer is a stainless steel wire mesh packing ring. The packing ring and the catalyst ring are alternately placed. Along the rotor radius, there are desulfurization, denitrification, demetalization of vanadium, and demetalization of nickel. catalyst.

[0067] After the reaction, the final liquid outlet desulfurization rate reached 90%, the denitrification rate reached 28%, the vanadium content was 0.45 μg / g, and the nickel content was 33 μg / g.

[0068] Using a conventional supergravity reactor (such as the one disclosed in Chinese patent application CN103102942A), the liquid outlet desulfurization rate is ≤80%, the denitrification ...

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Abstract

The invention discloses a method for performing a residual oil hydrogenation reaction in a high gravity reactor. The method comprises the following steps: selecting a high gravity reactor; starting amotor of the high gravity reactor to drive a rotary disk to rotate, meanwhile turning on an ultrasonic probe in a charging cavity; conveying hydrogen and residual oil into the charging cavity to perform efficient gas-liquid mixing, so that insoluble hydrogen is dispersed into a large quantity of nano-micronair bubbles in residual oil, and the solubility of the hydrogen in the residual oil is up toan over-saturated sate to form a gas-liquid mixture; spraying the gas-liquid mixture onto the rotary disk from a lower end of the charging cavity under the actions of gas pressure and gravity, throwing the gas-liquid mixture onto an inner edge of a rotor by using centrifugal force of the rotary force, and making the gas-liquid mixture flow through a catalyst to finish a gas-liquid-solid hydrocracking reaction process. By adopting the method disclosed by the invention, the desulfurization rate of the residual oil can be larger than or equal to 85 percent, the denitrification rate can be largerthan or equal to 25 percent, the vanadium content can be less than or equal to 0.55mug / g, and the nickel content can be less than or equal to 45mug / g.

Description

Technical field [0001] The invention belongs to the field of residual oil hydrogenation reaction, and in particular relates to a method for carrying out residual oil hydrogenation reaction in a supergravity reactor. Background technique [0002] With the continuous development of society, people's demand for energy continues to increase. The demand for petrochemical products continues to grow, the nature of crude oil is becoming heavy and inferior, and environmental protection requirements and oil quality standards continue to increase, which has promoted domestic refining and chemical companies to begin to pay attention to residual oil lightening technology. Residual oil contains high levels of sulfur and nitrogen impurities, and contains a large amount of heavy metals, gums and asphaltenes, so it is the more difficult part of petroleum to process. Residue hydrogenation technology, as one of the main technologies for residue lightening, plays a unique role in residue processing...

Claims

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Application Information

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IPC IPC(8): C10G45/04B01J8/08B01J8/10B01J19/10
CPCB01J8/0005B01J8/085B01J8/10B01J19/10C10G45/04C10G2300/1037C10G2300/202
Inventor 罗勇刘威初广文陈建峰邹海魁孙宝昌张亮亮
Owner BEIJING UNIV OF CHEM TECH
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