Novel internal structure of reactor and design method and application of novel internal structure

An internal structure and reactor technology, applied in chemical instruments and methods, treatment with moving solid particles, hydrocarbon oil cracking, etc., can solve the problems of easy wear, uneconomical, limited conversion rate of raw materials, etc.

Pending Publication Date: 2018-03-13
CATECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the disadvantages are obvious. The temperature difference between the upper and lower ends of the reactor is large, which is easy to be strained and has a short service life. Since the inlet temperature of the reactor cannot reach the reaction temperature, the actual reaction section is smaller than the length of the reactor; there is no back-mixing of the reaction materials in the reactor, and the There are few contact opportunities between hydro

Method used

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  • Novel internal structure of reactor and design method and application of novel internal structure
  • Novel internal structure of reactor and design method and application of novel internal structure
  • Novel internal structure of reactor and design method and application of novel internal structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment is applied to the oil-coal slurry bed hydrogenation process.

[0024] 1. Feeding process:

[0025] like figure 1 As shown in the figure, after the oil-coal mixture is pressurized by the circulating pump 9, it is sent to the feed port 8 at the bottom of the reactor barrel and enters the inside of the reactor. The flow is then accelerated along the annular gap between the outer wall 5 of the circular frustum cup and the inner wall 3 of the reactor at the bottom of the circulating blister, and finally passes through the annular gap between the outer wall 4 of the cylindrical cup and the inner wall 3 of the reactor. Continue to rise rapidly to the upper section of the circulating bubble cap 1 and enter the reactor, the space suddenly becomes larger, the speed of the mixture suddenly decreases, the light and heavy components are fully separated, the light components flow out from the discharge port 7 at the top, and the heavy components gravity It falls int...

Embodiment 2

[0032] The overall structure is similar to Embodiment 1, which is applied to heavy oil hydrogenation, and also includes 30 hollow blister risers 2 with opening and closing switches. The upper part is close to the bottom surface of the outer wall 4 of the cylindrical cup cover, and the top opening is slightly higher than the upper periphery of the cylindrical cup cover, such as figure 2 , 3 As shown, the inner diameter of the blister riser 2 is 10 mm.

[0033] The material can also rise rapidly to the top of the circulating blister through the blister riser 2, and its rising speed is close to the annular gap between the outer wall 4 of the cylindrical cup and the inner wall 3 of the reactor, and the number of opening and closing of the blister riser 2 is controlled according to the situation. , so that the rising speed of the material can be better controlled.

[0034] in conclusion:

[0035] It can be seen from the above examples that the hydrogenation reactor of the prese...

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PUM

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Abstract

The invention relates to a novel internal structure of a reactor and its design method and application. The internal structure includes a reactor cylinder, a feed inlet and a discharge outlet, the feed inlet is located at the lower part of the cylinder, and the discharge outlet is located at the cylinder The top of the top, including the circulation blister, the guide tube and the circulation pump, the circulation blister includes the upper hollow cylindrical cup and the lower hollow frustum-shaped cup and several blister risers, and the top of the cylindrical cup is open , located below the discharge port, the diameter of the lower bottom surface of the frustum-shaped cup is smaller than the diameter of the upper bottom surface, the lower bottom surface is connected with the guide tube, the blister riser is evenly distributed in the circumference of the circulating blister, and the top is higher than the cylindrical cup The upper plane of the cover, the bottom is flush with the cone-shaped cup cover, the lower end of the draft pipe leads to the bottom of the reactor cylinder, communicates with the circulation pump located outside the reactor cylinder, and the other end of the circulation pump leads to the feed inlet , the annular gap between the draft tube and the inner wall of the reactor barrel is much larger than the annular gap between the outer wall of the cylindrical cup cover and the inner wall of the reactor barrel and the inner diameter of the riser of the bubble cap.

Description

technical field [0001] The invention relates to a novel internal structure of a hydrogenation reactor, belonging to the fields of oil refining chemical industry and coal chemical industry. Background technique [0002] Slurry bed reactor, also known as suspended bed reactor, is a gas-liquid or gas-liquid-solid three-phase reactor. It can process heavy oil with high sulfur, high nitrogen, high heavy metal and high asphaltene content, and can also process oil-coal mixture. In recent years, it has gradually become the key research object of heavy oil processing, direct coal liquefaction and oil-coal co-refining. [0003] At present, the main types of slurry bed reactors are empty cylinder reactors and forced internal circulation reactors. The empty cylinder reactor has a simple structure, and its shape is a slender cylinder, and there are no other redundant components in it except the necessary pipeline inlet and outlet. In order to achieve a sufficient residence time and at...

Claims

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Application Information

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IPC IPC(8): B01J8/22C10G47/26C10G49/12C10G1/06C10G45/16
CPCB01J8/1872B01J8/22C10G1/06C10G45/16C10G47/26C10G49/12
Inventor 李苏安邓清宇王坤朋
Owner CATECH TECH
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