A kind of high-efficiency atomized glycol dehydration device and its using method and application

Abstract

The invention provides a high-efficiency atomized glycol dehydration device and its use method and application, belonging to the technical field of natural gas dehydration technology. The high-efficiency atomized glycol dehydration device is mainly composed of two parts: a glycol atomization unit, a gas-liquid contact and a separation unit. The device designed by the invention can make the contact between the raw material gas and the glycol more fully through the organic combination of the supergravity technology and the traditional triethylene glycol dehydration tower, improve the mass transfer effect, and better solve the problem that the original glycol dehydration equipment is bulky. Compared with the original dehydration equipment, it has the characteristics of low equipment height, small footprint, convenient maintenance and low production cost, and is more suitable for the treatment of offshore natural gas, so it has good practical application value. .

Description

technical field [0001] The invention belongs to the technical field of natural gas dehydration process, and in particular relates to a high-efficiency atomized glycol dehydration device and its use method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] The natural gas produced at the wellhead often contains a large amount of water vapor. When the pipeline pressure and ambient temperature change, liquid water may be precipitated, and under certain conditions, solid hydrates will be formed with alkanes. The existence of these substances will reduce pipeline damage. The transmission capacity of natural gas will block valves and pipelines in severe cases. Wh...

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Problems solved by technology

For the traditional triethylene glycol dehydration device, the absorption tower process is adopted, which occupies a large area, has low mass transfer efficiency, and requires regular replacement of packing, which is not easy to maintain, and has great limitations in the application of offshore natural gas fields.

[0005] The natural gas dehydration device disclosed in Chinese patent 201210188626.0 and 2016111015086 adopts the absorption tower process. The inventors found that the equipment has a high height, a large floor area, and low dehydration efficiency; the natural gas supergravity dehydration device disclosed in Chinese patent 201020019690. The separation pipe and the two connected flash tanks can release liquid droplets with a radius of 10 microns, but the inventors found that the pressure drop is relatively large, the flash tank occupies a large area, and there are certain safety hazards; Chinese patent 201811635806.2 published A high-efficiency atomization spray desulfurization tower and its desulfurization process, using tower equipment, the inventors found that it occupies a large area and is difficult to apply to offshore platforms; Chinese patent 201410490633.5 discloses a high-gravity method for triethylene glycol natural gas The dehydration system replaces the glycol absorption and regeneration tower with a supergravity machine, but the inventor found that it did not design the structure of the supergravity machine equipment, and failed to solve the problem of low separation efficiency, poor effect, and gas The problem of easy liquid entrainment

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