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Energy-saving radial reactor applicable to strong exothermic reactions

An exothermic reaction, energy-saving technology, applied in chemical instruments and methods, chemical/physical processes, etc., can solve the problems of difficult to meet strong exothermic reactions, uncontrollable temperature design, etc., to achieve reaction temperature diversity and space utilization. High, long-dwelling effect

Pending Publication Date: 2018-08-21
SINOPEC NINGBO ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shell-and-tube reactor cannot be designed for temperature control at different stages of the reaction, and it is difficult to meet the needs of strong exothermic reactions

Method used

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  • Energy-saving radial reactor applicable to strong exothermic reactions
  • Energy-saving radial reactor applicable to strong exothermic reactions
  • Energy-saving radial reactor applicable to strong exothermic reactions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The energy-saving radial reactor suitable for strong exothermic reaction of embodiment 1, as shown in the figure, includes a cylinder body 1, and the two ends of the cylinder body 1 are respectively connected with an upper head 21 and a lower head 22, and the upper head An upper tube plate 23 is installed between 21 and the cylinder body 1, a lower tube plate 24 is installed between the cylinder body 1 and the lower head 22, an air inlet 251 and an air outlet 253 are arranged on the cylinder body 1, and the cylinder body 1 A reaction zone is provided in the inner cavity, and the reaction zone includes an annular high temperature zone 3 and a low temperature zone 4. A heat exchange zone 8 is arranged between the high temperature zone 3 and the low temperature zone 4. The high temperature zone 3 is located outside the heat exchange zone 8, and the low temperature zone The inner side of the zone 4 is provided with an intermediate channel 42 for discharging reaction gas, a p...

Embodiment 2

[0024] The energy-saving radial reactor suitable for strong exothermic reaction of embodiment 2, as shown in the figure, includes a cylinder body 1, and the two ends of the cylinder body 1 are respectively connected with an upper seal head 21 and a lower seal head 22, and the upper seal head An upper tube plate 23 is installed between 21 and the cylinder body 1, a lower tube plate 24 is installed between the cylinder body 1 and the lower head 22, an air inlet 251 and an air outlet 253 are arranged on the cylinder body 1, and the cylinder body 1 A reaction zone is provided in the inner cavity, and the reaction zone includes an annular high temperature zone 3 and a low temperature zone 4. A heat exchange zone 8 is arranged between the high temperature zone 3 and the low temperature zone 4. The high temperature zone 3 is located outside the heat exchange zone 8, and the low temperature zone The inner side of the zone 4 is provided with an intermediate channel 42 for discharging re...

Embodiment 3

[0026] The energy-saving radial reactor suitable for strong exothermic reaction of embodiment 3 differs from embodiment 2 in that in embodiment 3, as shown in the figure, the upper tube plate 23 is equipped with a catalyst for filling the low temperature zone 4. The annular charging cylinder 26 is located directly above the low temperature zone 4, and the upper tube plate 23 is provided with a plurality of spirally arranged charging holes 27, which constitute the radial direction of the second gas distributor 6. There is a gap between the adjacent second square tubes 61 , so that a spiral gap 63 is formed on the second gas distributor 6 , and the orthographic projection of the multiple charging holes 27 falls on the spiral gap 63 of the second gas distributor 6 Above, a plurality of charging ports 15 are symmetrically installed on the upper side wall of the cylinder body 1 , and the plurality of charging ports 15 communicate with the shell side of the plurality of first heat ex...

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PUM

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Abstract

The invention discloses an energy-saving radial reactor suitable for strong exothermic reactions. Reaction regions of the energy-saving radial reactor include a high-temperature region and a low-temperature region. A heat exchange region is arranged between the high-temperature region and the low-temperature region. A plurality of first heat exchange tubes, second heat exchange tubes and third exchange tubes are arranged in the high-temperature region, the low-temperature region and the heat exchange region respectively. Shell passes of the first heat exchange tubes and the second heat exchange tubes are filled with catalysts. Inlets of tube passes of the first heat exchange tubes are communicated with a water outlet of a circular hot-water supply mechanism. Inlets of tube passes of the second heat exchange tubes and the third heat exchange tubes are communicated with an air inlet through a first gas distributor respectively. Outlets of the tube passes of the second heat exchange tubesand the third heat exchange tubes are communicated with inlets of the shell passes of the first heat exchange tubes through a second gas distributor. The reactor has the advantages of high space utilization rate, high catalyst loading rate, long stay duration of synthesis gases, reaction temperature diversity, high tabulation conversion rate, and applicability to the strong exothermic reactions such as Fischer-Tropsch synthesis, conversion, methyl alcohol and ethyl alcohol.

Description

technical field [0001] The invention relates to chemical equipment, in particular to an energy-saving radial reactor suitable for strong exothermic reaction. Background technique [0002] Chemical reactions are generally accompanied by endothermic or exothermic reactions. Among them, the Fiercher synthesis, which converts synthesis gas into hydrocarbons through the action of a catalyst, is a strongly exothermic reaction. The fixed bed tube reactor has the advantages of separation of catalyst and product, simple catalyst regeneration process, etc., and has broad application prospects in exothermic reactions. The tube reactor is divided into two types: the catalyst is installed outside the heat exchange tube and the inside of the heat exchange tube. The catalyst installed in the heat exchange tube can be directly loaded and unloaded from the upper and lower heads, which is more convenient. For the tube reactor with the catalyst installed outside the heat exchange tube , Gene...

Claims

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Application Information

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IPC IPC(8): B01J8/06
CPCB01J8/06B01J8/067B01J2208/00548B01J2208/00194Y02P20/10
Inventor 王丹顾英陈金锋刘翠强耿淑远刘会景
Owner SINOPEC NINGBO ENG