Reaction heating method and device

A thermal method and reaction technology, applied in lighting and heating equipment, heat exchanger types, indirect heat exchangers, etc., can solve the problems of increasing operating costs, dust emissions, catalyst fragmentation, etc., and achieve high heat transfer efficiency and fluidization. The effect of improving mixing efficiency and shortening height

Inactive Publication Date: 2014-12-03
QINGDAO JINGRUN PETROCHEM DESIGN INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst circulation link in the prior art and the high-speed airflow link at the outlet of the fluidized medium distributor will cause the catalyst to be broken, increasing the operating cost and the dust emission to the ring diameter

Method used

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  • Reaction heating method and device
  • Reaction heating method and device
  • Reaction heating method and device

Examples

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Embodiment

[0038] As shown in Figure 7, the reaction heat extraction method and equipment of a methanol-to-ethylene catalyst regenerator, the heat load is 25MW, and 4.0MPa saturated steam 27 is produced. The reaction heat extraction method and equipment: the catalyst regeneration temperature is 660°C, and the diameter of the catalyst connecting pipe 10 is 1300mm The angle between the center line of the catalyst connecting pipe 10 and the axis of the reaction heat extraction equipment is 50°; the diameter of the main shell 30 is 2200mm, the total height of the heat transfer area of ​​the heat exchange tube 9 is 6m, the height of the lower heat transfer area 6 is 2.5m, and the height of the upper heat transfer area 5 3.5m; the lower end of the heat exchange tube 9 is 300mm from the lower distributor; 34 heat exchange tubes; the heat exchange tube 9 is in the form of inner and outer tubes, and the outer tube specification is DN150; the inner tube is DN80; the total heat exchange area is 96㎡; ...

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PUM

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Abstract

The invention discloses a heating method and device of hydrocarbon raw material catalytic reaction for manufacturing olefin or arene through alcohol raw materials. The heating device is characterized in that catalyst communicating pipes are arranged in the middles or on the lower portions of a reactor and a reaction heating device, hot catalyst in the reaction heating device is divided into an upper heat transmission zone and a lower heat transmission zone with the communication pipe as the boundary, gas distributors are arranged in the two heat transmission zones, the catalyst in the heat transmission zone in the reaction heating device below the communication pipe is fluidized by gas inlet from the lower gas distributor, the fluidization gas returns to the reactor through the communication pipe, the catalyst in the heat transmission zone above the communication pipe is fluidized by gas inlet from the upper gas distributor so as to achieve mixing and heat transfer of the catalyst in the upper heat transmission zone and the catalyst in the lower heat transmission zone, the fluidization gas is discharged out of the reaction heating device through an exhaust pipe at the top. Heating amount of the two heat transmission zones can be controlled independently through amount of the fluidization gas entering respective zone.

Description

technical field [0001] The invention belongs to the technical field of heat exchange equipment and is used for controlling the reaction temperature in an exothermic reaction process, in particular to a heat extraction method and equipment for controlling the temperature of alcohol raw materials and solid catalyst carbon deposition regeneration reaction process. Background technique [0002] Many gas-solid phase reactions are exothermic reactions, such as the catalytic polymerization of methanol to ethylene, propylene and aromatic hydrocarbons, the regeneration of catalysts for alcohol reactions, and the regeneration of catalytic cracking catalysts for petroleum hydrocarbons. In order to control the temperature of the reaction process, it is generally necessary to take away part of the heat released by the reaction. Two kinds of media are often used to transfer heat through the heat exchange surface to achieve heat extraction from the reactant stream and control the reaction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/00
Inventor 石宝珍
Owner QINGDAO JINGRUN PETROCHEM DESIGN INST CO LTD
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