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Low pressure gas desulfurization packed absorption tower

A packing absorption tower and gas technology, which is applied in the direction of fuel, gas fuel, petroleum industry, etc., can solve the problems that have not been reported in the research, and achieve the effect of simple equipment structure, easy promotion, and reduced pressure drop

Active Publication Date: 2016-10-05
TIANJIN UNIV
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  • Abstract
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  • Low pressure gas desulfurization packed absorption tower
  • Low pressure gas desulfurization packed absorption tower
  • Low pressure gas desulfurization packed absorption tower

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention is described in detail through the embodiment: adopt the packed absorption tower that absorbs the hydrogen sulfide in the methane gas with N-methyldiethanolamine (MDEA) solution. The schematic diagram of the packed absorption tower is shown in figure 1 , the total height of the packed absorption tower is 8000-11000mm; the top demister 2 adopts figure 2 The parallel flow demister shown in the figure has a diameter of 600mm and a height of 500mm; the upper part of the liquid distributor 4 is provided with a liquid inlet 3, and the distance between the inlet position and the top of the tower is greater than 2000mm; the height of the upper packing layer 5 and the lower packing layer 7 is The same, both are 3000-6000mm, there is a gas-liquid collection redistributor 6 between the upper packing layer 5 and the lower packing layer 7, the distributor adopts a shutter-narrow groove multi-stage structure, the ...

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Abstract

The invention relates to a low-pressure gas desulfurization packing absorbing tower. The packing absorbing tower comprises a gas outlet, a defoamer, a liquid distributor, an upper packing layer, a gas-liquid collecting re-distributor, a lower packing layer, a gas distributor, and a liquid outlet in the bottom of the tower sequentially from top to bottom, wherein a liquid inlet is formed in the upper part of the liquid distributor and a gas inlet is formed in the lower part of the gas distributor. The defoamer is of a parallel flow type defoaming structure; the gas-liquid collecting re-distributor is of a structure in which a guide shutter is connected with a narrow-groove type multi-stage distributor. By virtue of the packing absorbing tower, the defoaming efficiency is ensured, the pressure drop is lowered greatly, the flow area of gas in a unit tower section is increased, and the resistance is reduced. The tower is simple in structure, low in investment cost and convenient to popularize.

Description

technical field [0001] The invention relates to a packed absorption tower for low-pressure gas desulfurization, which is the core device of the low-pressure gas desulfurization system. It is used in fields such as oil exploitation and oil refining to meet the needs of gas recovery and utilization in oil fields and refineries, and is especially suitable for the recovery and utilization of low-pressure gas. Background technique [0002] Amine liquid absorption desulfurization is the most widely used desulfurization method in industrial processes. When the gas pressure is high, it can be directly desulfurized. However, the gas produced in the process of oil extraction and refining is usually relatively low. For example, the pressure of gas in an oil refinery is only about 0.01MPa. The traditional packed absorption tower has a large resistance drop and needs to be pressurized first, and the pressurized operation not only increases energy consumption and cost, but also the hydro...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18C10L3/10
Inventor 王晓静苏伟张超张鹏哲
Owner TIANJIN UNIV
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