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Purification system and purification method for natural gas containing high-concentration CO2

A technology of purification system and natural gas, applied in gas fuel, petroleum industry, fuel and other directions, can solve problems such as large supply gap, increased import pressure, and rising import volume.

Pending Publication Date: 2021-07-30
CNOOC ENERGY SAVING & ENVIRONMENTAL PROTECTION SERVICES +1
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Problems solved by technology

But at the same time, my country's natural gas production is seriously insufficient, the supply gap is huge, the import volume continues to rise, and the import pressure continues to increase

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  • Purification system and purification method for natural gas containing high-concentration CO2

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Embodiment Construction

[0044] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0045] In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be constru...

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Abstract

The invention provides a purification system and a purification method for natural gas containing high-concentration CO2. The purification system comprises a separation part and an absorption part, wherein the separation part is used for rough decarburization, and the absorption part is used for fine decarburization, so that the removal ratio of CO2 in the natural gas is greatly increased, efficient purification and low hydrocarbon loss of the natural gas containing high-concentration CO2 can be realized, and the technical problems that natural gas contains a large amount of CO2, the heat value of the natural gas is reduced, the transportation load and cost are increased, and pipelines and equipment are corroded in the prior art are solved. The purification method is implemented by using the purification system, so that the technical effects achieved by the purification system can be achieved, and the technical problems solved by the purification system are solved.

Description

technical field [0001] The invention belongs to the field of natural gas purification and purification, in particular to a kind of high-concentration CO 2 Natural gas purification system and purification method. Background technique [0002] Compared with coal and oil, natural gas has low carbon intensity and high thermal energy utilization rate. Its combustion causes less pollution to the environment and is cleaner. Therefore, the Chinese government has continuously increased the supply and use of natural gas in recent years. [0003] With the steady development of the social and national economy, energy demand will continue to grow. Natural gas has always played an important role in my country's energy revolution. It is expected that my country's natural gas consumption will maintain a growth trend before 2050. But at the same time, my country's natural gas production is seriously insufficient, the supply gap is huge, the import volume continues to rise, and the import pr...

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Application Information

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IPC IPC(8): C10L3/10
CPCC10L3/104
Inventor 邓海发闫肃康国栋刘艳武曹义鸣邢传胜赵一帆王钊李子旺
Owner CNOOC ENERGY SAVING & ENVIRONMENTAL PROTECTION SERVICES
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