A high throughput tray

A high-throughput and tray technology, applied in the field of high-throughput trays and tray tower mass transfer internals, can solve problems such as short flow path, low efficiency, and limited bubbling area, so as to eliminate gradients and improve processing efficiency , Increase the effect of opening area

Active Publication Date: 2015-11-18
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, the present invention provides a high-throughput tray, which can solve the problems of short flow paths, low efficiency, and limited bubbling area in the prior art, and further improve the gas-liquid phase processing capacity

Method used

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Embodiment Construction

[0041] In order to verify the effect of the structure of the present invention, the applicant conducted the following experiments.

[0042] Experiment 1

[0043] In an 800,000-ton / year ethylene plant, the 2# propylene tower has a diameter of 7 meters and uses 160 ordinary 4-overflow float valve trays with a tray spacing of 500mm. Later, the plant was pre-expanded to an annual output of 1 million tons of ethylene. Using the present invention as figure 2 The trays are replaced one by one, and the diameter of the sieve hole in the bubbling area is 13mm. Suspended downcomer 4 is adopted, and the number of 4 suspended downcomers on adjacent two-layer trays is 6 (odd number without side downcomer layer) and 7 (even number with side downcomer layer). The spacing remains unchanged at 500mm. The shell remains unchanged, and the capacity expansion requirements can be achieved by using the original support ring.

[0044] Experiment 2

[0045]The gasoline fractionation tower of an 8...

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Abstract

The invention provides a high-flux tower plate belonging to the field of plate tower mass transfer internals. The high-flux tower plate includes a group of down-flow units and a group of bubbling units, and the down-flow units and the bubbling units are in alternative arrangement. The bubbling units have a hump protruding structure and are provided with gas channels. The down-flow units have a sunken structure and are equipped with liquid channels. A group of the tower plates are arranged in parallel along the tower height direction. Between adjacent two layers of the tower plates, the down-flow units of an upper tower plate correspond to the bubbling units of a lower tower plate, and air passes through the bubbling area and then rises to the upper tower plate. The tower plate provided by the invention has a curve cross section, the area of the tower plate increases, so that the hole area can be increased to enhance the gas phase processing capacity. The high-flux tower plate provided by the invention solves the low efficiency problem of existing high-flux plate towers, can further increase the processing ability under the same mass transfer efficiency to a sieve-plate tower, and has a treatment capacity higher than that of an MD / ECMD tower plate by 20%-40%.

Description

technical field [0001] The invention relates to an internal component of a fractionation tower (rectification tower) in the field of gas-liquid mass transfer, and furthermore, relates to a mass transfer internal part of a tray tower, which is a high-throughput tray. Background technique [0002] The plate tower has a long history, and there are many kinds of internal parts. From the earliest bubble cap trays to sieve trays, valve trays, and various through-flow trays, they all have different application ranges. The MD / ECMD tray invented by UOP breaks through the design concept of the traditional tray tower. There are multiple downcomers on the tray, generally more than 4, and they are suspended at the bottom of the tray, which not only increases the liquid phase processing capacity, but also has Increased bubbling zone area, which in turn also improves gas phase handling capacity (see figure 1 ). However, due to the arrangement of multiple downcomers 3a, the distance betw...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B01D3/20
Inventor王振维王子宗
OwnerCHINA PETROCHEMICAL CORP