Efficient ultrasonic recirculating-type reaction device

A reaction device and ultrasonic technology are applied in the field of new gas-liquid-solid three-phase circulation reaction devices to achieve the effects of shortened reaction time, narrow particle size distribution and simple processing

Inactive Publication Date: 2009-12-02
BEIJING ZIGUANG YINGLI CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of using the reactor, there are still requirements for further improving mass transfer efficiency, improving gas distribution, and further strengthening the three-phase surface.

Method used

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  • Efficient ultrasonic recirculating-type reaction device
  • Efficient ultrasonic recirculating-type reaction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The tower body 1 with a diameter of 160mm and a height of 2000mm has air intake at the bottom of the tower, a vent 8 and a pressure gauge on the top of the tower, a thermometer in the middle of the tower body 1, a feed port 9 and a discharge port 6 on the tower body, and ultrasonic waves are built in the bottom of the tower. Generator 5.

[0021] Add 500g of fruit shell activated carbon, 12000g of water, 3000g of bisglyphosate, and 900g of 25% ammonia water into a stainless steel empty tower with a diameter of 160mm and a height of 2000mm, heat, and feed oxygen into the reaction solution at a linear velocity of 0.03m / s , control the pressure in the tower to 0.3MPa, turn on the ultrasonic generator (200KHz, power is 50W), the temperature rises to 67°C, and the complete reaction of diglyphosate is detected by phosphorus spectrum, and the reaction selectivity of glyphosate is 89.6%. After the reaction was completed, activated carbon was filtered, and the filtrate was adjus...

Embodiment 2

[0023] Inner circulation airlift reactor 1 with a diameter of 50mm and a height of 800mm, a diversion barrel 2 with a height of 300mm, air intake at the bottom, a pressure gauge, a thermometer and a vent 8 at the top, and ultrasonic generators on the side of the bottom and middle part of the top of the tower 5.

[0024] Add 7.50 grams of activated carbon, 1000 grams of water, and 122 grams of bisglyphosate in the tower. Heating, air is passed into the reaction solution, the gas line velocity is 0.10m / s, the pressure at the top of the tower is controlled to 0.3MPa, the ultrasonic generator (80KHz, power is 80W) is turned on, the temperature rises to 75°C, and the phosphorus spectrum detects that the diglyphosate is completely Reaction, reaction about 1.0 hour, glyphosate reaction selectivity 94.0%.

Embodiment 3

[0026] Get waste water in example 2 reactor, pass into compressed air and blow off cyanogen, effect is ideal, and concrete data sees the following table:

[0027] batch number

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Abstract

The invention relates to improved recirculating-type reactor equipment. The device mainly comprises a tower body, a heat exchanger, a gas distributor, an ultrasonic generator, and other components. The introduction of the ultrasonic generator can greatly increase the using efficiency of the tower. The reactor can be widely used in polyphase systems in chemical fields such as catalysis, oxidation, hydrogenation, removal of hydrocyanic acid / ammonia, deposition and crystallization. Moreover, the improved recirculating-type reactor equipment has the advantages of high reaction efficiency, small amplification effect, ideal mass and heat transfer, low energy consumption, and the like.

Description

technical field [0001] The invention relates to a novel gas-liquid-solid three-phase circulation reaction device, in particular to a circulation reaction device equipped with an ultrasonic generator. Background technique [0002] The gas-liquid-solid three-phase system is the most common system in chemical industry, and its effective mass and heat transfer is the biggest engineering problem of this system. Although devices such as fixed bed, fluidized bed, and continuous tank reaction have been widely used, especially the loop reactor is powered by the specific gravity difference generated by the gas, which is a kind of high-efficiency and energy-saving equipment. Although this device has some applications, But it is not common. Compared with fixed bed, fluidized bed and bubble column, it has higher mass transfer and heat transfer efficiency, easier to scale up, and less power consumption. It is a new type of reactor worthy of application. However, there are still requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/22B01J19/10
Inventor 尹应武郭钰来冯天瀚李建虹谢增勇陈斌崔建斌孙响响廖翠莺
Owner BEIJING ZIGUANG YINGLI CHEM TECH CO LTD
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