Oscillatory flow tubular reactor with ripple wall

A tubular reactor and corrugated wall technology, applied in the field of reactors, can solve the problems of polymer molecular mechanical degradation, average molecular weight reduction, molecular weight distribution broadening, etc., and achieve the effect of not easy local accumulation, long-term operation, and stable operation

Inactive Publication Date: 2007-05-09
ZHEJIANG UNIV
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Problems solved by technology

[0003] The baffle of the baffle-type tubular oscillatory flow reactor causes a sudden change in the cross-section of the reactor flow channel, thus forming a high shear rate area at the edge of the baffle, which is easy to Causes mechanical degradation of polymer molecules, resulting in a decrease in average molecular weight and a broadening of molecular weight distribution, which is very unfavorable for the production process targeting high molecular weight and narrow molecular weight distribution
For systems containing solid suspended particles with low mechanical strength, the above-mentioned local high shear rate is also easy to cause the fragmentation of solid particles, which is necessary for applications requiring stable solid particle size (such as certain suspended solid catalytic reaction processes and flocculation processes) ) is also very unfavorable

Method used

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  • Oscillatory flow tubular reactor with ripple wall
  • Oscillatory flow tubular reactor with ripple wall

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Embodiment Construction

[0010] As shown in the figure, the corrugated wall oscillating flow tube reactor is composed of an oscillation generating mechanism 1, an inlet section 2, a reaction tube 4, and an outlet section 7 connected in sequence. The section 7 is provided with a discharge port 8, and the reaction tube 4 is composed of a vertically arranged corrugated wall tube, and the space inside the tube presents a multi-spherical chamber structure.

[0011] The ratio of the inner diameter of the spherical chamber to the inner diameter of the connecting channel between the chambers is 3-1.2:1. A heat exchange jacket 3 is arranged outside the reaction tube 4 . There are multiple reaction tubes 4 . A plurality of reaction tubes 4 are connected in series or in parallel

[0012] The inner diameter of the corrugated-wall pipe according to the present invention changes periodically along the central axis in an orderly manner, so that the inner space of the pipe presents a multi-spherical chamber structu...

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Abstract

An oscillating flow type tubular reactor with corrugated wall is composed of oscillation generating mechanism, inlet segment with inlet, reaction segment formed by vertical circular reaction pipe with corrugated wall for dividing its internal space into several chambers, and outlet segment with outlet. It is suitable for the reaction of liquid-solid suspension system with high content of solid.

Description

technical field [0001] The invention relates to a reactor, in particular to a corrugated wall oscillating flow tube reactor. Background technique [0002] Oscillating flow reactor is a new type of chemical equipment with broad industrial application prospects. It has excellent transfer characteristics and can provide better reaction performance than stirred tank reactors and ordinary tubular reactors in many cases. At present, most of the oscillating flow tube reactors that have been researched and applied are baffle-type tube reactors. By setting baffles periodically arranged along the flow direction in the tube, the cross-sectional area of ​​the flow channel changes periodically in space. , divide the space in the tube into a multi-chamber structure in series. When the reactor is working, the oscillating movement generated by the oscillating mechanism in the fluid inside the reaction tube interacts with the baffle to generate a vortex in the chamber that is constantly cha...

Claims

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Application Information

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IPC IPC(8): B01J8/16B01J8/20
Inventor 吴嘉袁灿盛胡晓萍李正辉
Owner ZHEJIANG UNIV
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