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Integrated process and system for detecting and treating toxic gas in deep natural gas

A toxic gas and natural gas technology, applied in the field of integrated technology and systems, can solve problems such as human injury, mental-nervous abnormalities, pipeline corrosion, etc., and achieve the effect of efficient and harmless treatment

Active Publication Date: 2021-04-27
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mercury is a poisonous and harmful gas. On the one hand, it has a harmful effect on the human body. Inhalation of high concentrations of mercury can lead to chronic diseases with mental-nervous abnormalities, gingivitis, and tremors as the main symptoms; Severe corrosion has caused many major safety accidents

Method used

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  • Integrated process and system for detecting and treating toxic gas in deep natural gas
  • Integrated process and system for detecting and treating toxic gas in deep natural gas
  • Integrated process and system for detecting and treating toxic gas in deep natural gas

Examples

Experimental program
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Effect test

Embodiment 1

[0092] This embodiment provides a device for detecting toxic gases in deep natural gas, the schematic diagram of which is shown in figure 1 shown, from figure 1 As can be seen, the device includes:

[0093] The display screen 1-12, the electric signal amplifier 1-11, the first electric signal processor 1-8, the second electric signal processor 1-9, the third electric signal processor 1-10 and the radon detection room which are connected in sequence 1-1, hydrogen sulfide detection room 1-2 and mercury detection room 1-3;

[0094] The radon detection chamber 1-1 is provided with an alpha detector 1-4, and the alpha detector 1-4 is electrically connected to the input end of the first electrical signal processor 1-8, and the first electrical signal processor The output end of the device 1-8 is electrically connected to the display screen 1-12 via an electric signal amplifier 1-11; the gas inlet of the radon detection chamber 1-1 is provided with a detachable filter layer 1-14, a...

Embodiment 2

[0107] This embodiment provides a device for harmless treatment of toxic gas in deep natural gas, the schematic diagram of which is as follows figure 2 shown, from figure 2 As can be seen from the figure, the device includes a radon treatment chamber 2-1 and a hydrogen sulfide rinsing and removal chamber 2-2 connected in sequence;

[0108] The radon treatment chamber 2-1 is provided with several mesh partitions 2-4, and the surface of the mesh partitions 2-4 is provided with biologically active adsorbents 2-9;

[0109] The top of the hydrogen sulfide rinse and removal chamber 2-2 is provided with a shower device 2-5, and the shower device 2-5 is used for spraying sulfuration in the hydrogen sulfide rinse and removal chamber 2-1 from top to bottom. Hydrogen scavengers 2-10.

[0110] In the device provided in this embodiment, the partition is a corrosion-resistant quartz thin plate.

[0111] In the device provided in this embodiment, the biologically active adsorbent is bio...

Embodiment 3

[0115] This embodiment provides a device for harmless treatment of toxic gas in deep natural gas, the schematic diagram of which is as follows image 3 shown, from image 3 As can be seen from the figure, the device includes a radon treatment chamber 2-1 and a mercury treatment chamber 2-3 which are connected in sequence;

[0116] The radon treatment chamber 2-1 is provided with several mesh partitions 2-4, and the surface of the mesh partitions 2-4 is provided with biologically active adsorbents 2-9;

[0117] The mercury treatment chamber 2-3 is provided with several harmful gas treatment nets 2-6, and the harmful gas treatment nets 2-6 are filled with melamine-modified bentonite.

[0118] In the device provided in this embodiment, the partition is a corrosion-resistant quartz thin plate.

[0119] In the device provided in this embodiment, the biologically active adsorbent is biologically activated carbon.

[0120] In the device provided in this embodiment, the side wall o...

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Abstract

The invention provides an integrated process and system for detecting and treating toxic gas in deep natural gas. The process comprises the steps; drying deep natural gas after cooling and depressurizing; sequentially carrying out radon, hydrogen sulfide and mercury detection on the dried deep natural gas; if the concentration of mercury, radon and hydrogen sulfide in the deep natural gas reaches the standard after detection, conveying the deep natural gas to a gas conveying pipeline; if it is found that the concentration of radon, hydrogen sulfide and mercury in the deep natural gas does not reach the standard after detection, carrying out harmless treatment on radon, part of mercury, hydrogen sulfide and the rest of mercury in the deep natural gas in sequence; carrying out mercury, radon and hydrogen sulfide detection on the deep natural gas subjected to harmless treatment in sequence, and if the concentrations of mercury, radon and hydrogen sulfide in the deep natural gas reach the standard, conveying the deep natural gas subjected to harmless treatment to a gas conveying pipeline; and if the concentrations of mercury, radon and hydrogen sulfide in the deep natural gas do not reach the standard, carrying out harmless treatment on the radon, part of mercury, hydrogen sulfide and the rest of mercury in the deep natural gas in sequence until reaching the standard.

Description

technical field [0001] The invention relates to an integrated process and system for detecting and treating toxic gas in deep natural gas, belonging to the technical fields of oil and gas exploration, safe production and occupational disease prevention. Background technique [0002] With the expansion of oil and gas exploration to deep and unconventional fields, more and more natural gas has been discovered, developed and utilized, which has greatly eased the tense situation of natural gas supply in China. However, these deep sources and unconventional natural gas contain more or less toxic and harmful components, and some of them seriously exceed the standard, posing a threat to safe production and life and health. In the past natural gas treatment, hydrogen sulfide has attracted attention because of its abnormal smell, and many natural gas with high hydrogen sulfide content have been desulfurized. However, radon and mercury in these deep sources and unconventional types o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/22G01N33/00G01N1/34C10L3/10B01D46/30
CPCG01N33/225G01N33/0036G01N33/0055G01N33/0045G01N33/0044G01N33/0011G01N33/0014G01N1/34C10L3/101B01D46/30B01D19/0036B01D19/0042B01D39/12B01D2239/0407B01D2239/1216B01D2239/1208B01D46/0036B01D46/0027G01N33/0031B01D19/00B01D39/10B01D39/2062B01D46/0028B01D53/1468C10L3/10C10L3/103E21B43/34G01N23/00G01N2223/01G01N2223/1045G01N2223/638
Inventor 朱光有陈志勇王萌李婷婷
Owner PETROCHINA CO LTD
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