Ultrasonic bubble column rectification device and method

An ultrasonic and bubble-cap tower technology, applied in the field of ultrasonic bubble-cap tower rectification devices, can solve the problems of loss of economic benefits, increase of investment in equipment transformation and equipment, increase of start-up and parking costs, material consumption and energy consumption, etc., and achieve the elimination of laminar flow Effect, good social benefit, effect of simple equipment modification

Inactive Publication Date: 2018-09-07
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] All the above-mentioned measures must be carried out for plant shutdown and transformation, which not only greatly increases the investment in plant transformation and equipment investment, but also requires the plant to be shut down, increasing the cost of starting and stopping, material consumption and energy consumption, resulting in the loss of economic benefits

Method used

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  • Ultrasonic bubble column rectification device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] An ultrasonic bubble column rectification device, such as figure 1 with figure 2 Shown, comprise bubble cap column, comprise a plurality of trays 7 and bubble cap 6 in the bubble cap column, also comprise supersonic generator 9, a distributor 3 is arranged on the position corresponding to one of the trays 7 on the bubble cap column outer wall 4 , the distributor 3 is connected to the ultrasonic generator 9 through the ultrasonic transducer 1; the angle between the ultrasonic transducer 1 and the distributor 3 is 45°-135°. A cooler 2 is provided between each distributor 3 and its corresponding ultrasonic transducer 1 .

[0041] In the distillation method using an ultrasonic distillation device, the raw materials are sent into the bubble tower for distillation and separation, and the liquid phase material 5 descending in the tower and the gas phase material 8 rising in the tower are contacted on the tray 7 for reverse heat and mass transfer, At the same time, one of th...

Embodiment 2

[0043] In order to compare the effect of the sparger, an experimental verification was carried out on a gasoline rectification pilot plant to remove heavy components in a certain gasoline, using an ordinary bubble cap column (not loaded with ultrasonic waves), loaded with ultrasonic waves but not connected to a sparger, and Experimental evaluation was carried out using the device and process of Example 1 of the present invention. The test was carried out for 2 hours, and the process conditions were: the number of distillation column trays was 40, the reflux ratio was 3.5, the sparger used in the test process was a carbon steel structure, the thickness was 10mm, the sparger was a curved surface, and the sparger area was 0.2m 2 , the distributor is connected to the tray by flange compression, the ultrasonic frequency is 20Khz, the angle between the transducer and the distributor is 90°, and the ultrasonic sound intensity is 0.2w / cm 2 .

[0044] Adopt ordinary bubble cap tower (...

Embodiment 3

[0049] In order to compare the effect of different angles between the ultrasonic transducer and the distributor on the separation effect of the rectification tower, an experiment was carried out on a gasoline rectification pilot plant to remove heavy components in a certain gasoline, and ordinary bubble cap towers were used respectively. (unloaded ultrasonic wave), 45 ° of ultrasonic loading angle (using the device of embodiment 1 of the present invention, the only difference is that the angle between the ultrasonic transducer and the distributor is 45 °) and 90 ° of ultrasonic loading angle (using the present invention In the device of embodiment 1, the only difference is that the angle between the ultrasonic transducer and the distributor is 90°) and the experimental evaluation was carried out under the process. The test was carried out for 2 hours, and the process conditions were: the number of distillation column trays was 40, the reflux ratio was 3.5, the sparger used in t...

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Abstract

The invention specifically relates to an ultrasonic bubble column rectification device and a method, belonging to the field of rectification-rectification technology in the petrochemical industry. Theultrasonic bubble column rectification device comprises a bubble column and an ultrasonic generator, wherein the bubble column is internally provided with a plurality of trays and bubble caps; the outer wall of the bubble column is provided with a distributor at a position corresponding to one of the trays; the distributor is connected with the ultrasonic generator via an ultrasonic transducer; and the included angle of the ultrasonic transducer and the distributor is 45 to 135 degrees. According to the invention, ultrasonic waves are effectively and uniformly transmitted to the trays in virtue of a proper angle; and a gas-liquid interface is greatly increased in virtue of the microjet effect of ultrasonic waves, so the heat transfer and mass transfer of gas-liquid-phase materials on thetrays are reinforced, and the plate efficiency is improved. The invention also provides the method using the device.

Description

technical field [0001] The invention belongs to the technical field of rectification-rectification in the field of petrochemical industry, and in particular relates to an ultrasonic bubble column rectification device and method. Background technique [0002] Bubble tower is a tower-type vapor-liquid contact device for rectification. It is the leading device in large-scale refining and chemical enterprises. Bubble tower is widely used in rectification and gas absorption. The operation status of the process with high consumption plays a decisive role in the benefit of the whole device. The tower is equipped with multi-layer horizontal trays, on which there are several short tubes for steam (or gas) to pass through, each of which is covered with a bubble cap with tooth gaps or small grooves on the bottom edge, and an overflow tube is installed. During operation, the liquid enters continuously from the upper part of the tower, descends plate by plate through the overflow pipe, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/20B01D3/32B01J19/10
Inventor 王文彬孟宪谭郭岩锋王鹏贠建华张剑裴小静吴宽亮
Owner CHINA PETROLEUM & CHEM CORP
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