Reaction apparatus for producing styrene by dehydrogenation of low pressure drop ethylbenzene
A technology for ethylbenzene dehydrogenation production and reaction device, which is applied in the direction of feeding device, hydrocarbons, hydrocarbons, etc., can solve the problems of inability to meet the low pressure drop of azeotropic heat recovery and energy saving process, and achieves reduction of mixing pressure drop, Improve the effect of mixing uniformity
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[0058] Example 1
[0059] A two-stage negative pressure intermediate reheating reaction system for the dehydrogenation of ethylbenzene to styrene using a constant boiling heat recovery and energy-saving process, using such image 3 The structure of the ultra-low pressure drop reaction device for the dehydrogenation of ethylbenzene to styrene is shown. The diameter of the reactor is 4200mm, the thickness of the catalyst bed is 600mm, the height is 18000mm, the height-to-thickness ratio (value) of the catalyst bed is 30, and the catalyst is sealed high. It is 1800mm, the angle α between the upper baffle of the double cone baffle and the horizontal plane is 74° and the angle β between the lower baffle of the double cone baffle and the horizontal plane is 60°. The diameter of the inner distribution cylinder is 1800mm, and the pitch t of the spiral baffle is 5000mm. There are 4 guide nozzles of the mixer, the diameter of the short pipe is 300mm, and the diameter of the mixing degree a...
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[0060] Example 2
[0061] A two-stage negative pressure intermediate reheating reaction system for the dehydrogenation of ethylbenzene to styrene using a constant boiling heat recovery and energy-saving process is adopted such as image 3 The structure of the ultra-low pressure drop reaction device for the dehydrogenation of ethylbenzene to styrene is shown. The diameter of the reactor is 3100mm, the thickness of the catalyst bed is 550mm, the height is 11000mm, the height-to-thickness ratio (value) of the catalyst bed is 20, and the catalyst is sealed high. It is 1500mm, the angle α between the upper baffle of the double cone baffle and the horizontal plane is 79° and the angle β between the lower baffle of the double cone baffle and the horizontal plane is 45°. The diameter of the inner distribution cylinder is 1400mm, and the pitch t of the spiral baffle is 2000mm. There are 6 guide nozzles of the mixer, the diameter of the short pipe is 175mm, and the diameter of the mixing d...
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