Slurry bed reactor with distribution plate of multi-stage perforated structure

Abstract

The present invention provides a slurry bed reactor, the slurry bed reactor includes a distribution plate, the distribution plate includes a plurality of primary perforations and a plurality of secondary perforations, the plurality of primary perforations are opposite to the The geometric center of the plate is distributed in the form of two to twelve helical arms, the multiple secondary perforations are distributed in each helical arm, and one to six associated secondary perforations are arranged near each primary perforation. perforation.

Description

technical field [0001] The invention belongs to the field of chemical equipment and devices, and in particular relates to a slurry bed reactor. The distribution plate of the slurry bed reactor has a specially designed multi-stage perforation structure, preferably a fractal perforation structure. Background technique [0002] In the fields of chemical industry, bioengineering, environmental protection, etc., it is often necessary to carry out processes such as chemical reaction and bioengineering cultivation in a multiphase reaction system where gaseous, liquid, and solid materials exist simultaneously. Specific examples of these processes may include biological fermentation, Wastewater treatment, tail gas treatment, chemical synthesis, etc., the gaseous and liquid materials used may include various reactants and process additives, and the solid paste may be either reactants, culture substrates, reaction catalysts or other processes Auxiliaries, these biological or chemical p...

AI Technical Summary

Problems solved by technology

[0003] The main problem of the slurry bed reactor is that it is difficult to control the uniformity of the overall material concentration and flow velocity distribution, local problems such as unavoidable and difficult to control turbulence and back mixing may occur, and there may also be dead zones. The above-mentioned uniform mass transfer and Difficulties with uniform heat transfer have a major detrimental effect on the quality of the process product as well as the day-to-day operation and maintenance of the slurry bed

Although the above improvement methods can alleviate the existing problems to a certain extent, these additional components will significantly increase the complexity of the design and operation of the slurry bed reactor, resulting in a substantial increase in infrastructure and daily maintenance costs, and these newly added components Many new hindrance sites will be introduced inside the reactor, and it may even bring new adverse effects to the mass transfer and heat transfer in the reactor, and bring new problems while solving the original problems

According to the research and development idea of ​​the existing technology, the result is that technicians need to monitor and adjust more and more parameters when operating the equipment, and the complexity of the reaction system is getting higher and higher. The improvement effect of mass and heat transfer is very limited

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