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A hydrogenation reactor with a buffer component

A technology of hydrogenation reactors and reactors, applied in chemical instruments and methods, chemical/physical processes, etc., can solve the problems of reducing the service life of catalysts, damaging catalyst performance, and varying degrees of reaction, so as to achieve fine adjustment and stable The effect of uniform inlet conditions and low installation accuracy requirements

Active Publication Date: 2021-08-31
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hydrogenation process is an exothermic reaction, the feedstock oil is unevenly distributed on the radial section of the catalyst bed, which will lead to different reaction degrees and radial temperature differences, and even local overheating, which will damage the performance of the catalyst and greatly reduce the catalyst performance. life cycle

Method used

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  • A hydrogenation reactor with a buffer component
  • A hydrogenation reactor with a buffer component
  • A hydrogenation reactor with a buffer component

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Compared with Comparative Example 1, the embodiment 1 of the present invention adopts the hydrogenation reactor of the present invention, and in the upper head of the hydrogenation reactor, the shock-reducing equalizer plate of the present invention is arranged, and adopts such as figure 2 The surge reducing equalizer disc shown is used in combination with a common ERI type bubble cap gas-liquid distributor. The ring-plate type shock-reducing flow equalizer includes a tower tray and a distributor, and the distributor is arranged concentrically on the tray by 8 layers of shock-reducing ring plates. Downpipe 2 for collecting and discharging material. The height of the impact-reducing ring plate is 80mm; the lower edge of the impact-reducing ring plate is provided with a semicircular hole as a liquid phase channel, and the total cross-sectional area of ​​the holes opened on each layer of the impact-reducing ring plate is 0.8 times the cross-sectional area of ​​the reactor...

Embodiment 2

[0043] Same as Example 1, the difference is that the conventional ERI gas-liquid distributor in the field in the original hydrogenation reactor is canceled, and only the buffering and equalizing plate provided in the present invention is retained, the bed radial temperature and See Table 1 for the temperature difference.

[0044] Table 1 Application Results

[0045] Temperature measurement point location Comparative example 1 Example 1 Example 2 a 280.2 281.4 281.6 b 285.4 281.5 282.0 c 293.0 282.0 283.3 d 284.8 282.4 281.7 e 286.8 282.5 282.7 Maximum bed radial temperature difference, °C 12.8 1.1 1.7

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Abstract

The invention discloses a hydrogenation reactor with a buffer component. The hydrogenation reactor of the present invention includes a material inlet pipe, an inlet diffuser, an upper head of the reactor, a ring plate type flush reducing and equalizing plate, a catalyst bed, a catalyst support grid, a reactor cylinder, a lower head of the reactor, Outlet collector, material outlet pipe and unloading pipe. The ring-plate type flush-reducing flow equalizer includes a tray and a distributor arranged on the tray. The distributor is arranged in concentric circles on the tray by several layers of flush-reducing ring plates. Two adjacent layers of flush-reducing rings Between the plates there are several downcomers for collecting and discharging the material. The hydrogenation reactor of the present invention is suitable for the hydrogenation reaction process, especially the hydrorefining or hydrocracking process in which the scale of the reactor containing the raw material scale is relatively large.

Description

technical field [0001] The invention relates to a hydrogenation reactor with an impact reduction component, which belongs to the field of chemical equipment. The hydrogenation reactor of the invention is especially suitable for the hydrofinishing or hydrocracking process in which there are many scales in raw oil and the reactor scale is large. Background technique [0002] In recent years, with the rapid economic development and the enhancement of environmental protection awareness, the quality and environmental protection requirements of petrochemical products are getting higher and higher. As a technical means of producing clean fuels, hydrogenation technology is playing an increasingly important role in the oil refining industry. In the hydrogenation unit, like the hydrogenation catalyst technology and the hydrogenation process technology, the hydrogenation reactor technology is an important part of the reactor system, and the three constitute the three factors of the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02B01J8/04
CPCB01J8/0278B01J8/0403
Inventor 彭德强王璐瑶刘杰
Owner CHINA PETROLEUM & CHEM CORP
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