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System and method for separating and purifying mercury in natural gas

A technology for natural gas and mercury ions, which is applied in the field of oil and gas exploration technology and chemical industry, can solve the problems of unsuitable analysis of mercury stable isotopes, short enrichment time, and difficulty in analyzing mercury stable isotopes, so as to achieve scale benefit development and save exploration costs. , the effect of simple operation

Pending Publication Date: 2018-12-07
HENAN POLYTECHNIC UNIV
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Problems solved by technology

Due to the short enrichment time of natural gas with low mercury content, the current liquid oxidation method is difficult to analyze the stable isotope of mercury in the absorption liquid, and the solid oxidation method and amalgam method are not suitable for the analysis of stable isotope of mercury.

Method used

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  • System and method for separating and purifying mercury in natural gas
  • System and method for separating and purifying mercury in natural gas
  • System and method for separating and purifying mercury in natural gas

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0026] Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] figure 1 is a schematic diagram according to the first embodiment of the present invention.

[0...

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Abstract

The invention discloses a system for separating and purifying mercury in natural gas. The system comprises a separating device and a purifying system, wherein the separating device is used for separating and enriching mercury in natural gas, so as to form a first-level mercury-containing mixture; the purifying system comprises a mercury reductant carrying device, a mercury vapor carrying device and an absorbing device; the mercury reductant carrying device is connected with the separating device and is used for reducing the mercury ions in the first-level mercury-containing mixture into mercury vapor; the mercury vapor carrying device is connected with the separating device and is used for conveying the mercury vapor to the absorbing device so as to form a second-level mercury-containing mixture. The system is simple in operation, is nontoxic and pollution-free and is capable of quickly and accurately measuring the mercury content in natural gas, so that a corresponding oil-gas exploration method can be designed for the mercury content in natural gas, the exploration cost is saved, the scale benefit and development can be realized and the gap of quickly separating and purifying mercury in natural gas in the present oil gas industry can be filled.

Description

technical field [0001] The invention belongs to the fields of oil and gas exploration technology and chemical industry, and in particular relates to a mercury separation and purification system and method in natural gas. Background technique [0002] Mercury vapor content in natural gas as an identification index of natural gas origin was proposed as early as 1974 by the former Soviet scientist Н.А. The mercury content in the atmosphere (the background value of mercury in the atmosphere is 1.5-2.0 ng / m3) is 2, or even more orders of magnitude. Chinese researchers studied the mercury vapor content in a large number of oil-type gas and coal-type gas in the early 1990s and concluded that the mercury content in coal-type gas is generally higher than that in oil-type gas, and the mercury content in coal-type gas is generally higher than that in oil-type gas. The vapor content is generally greater than 700 ng / m3, and the mercury vapor content of oil-type gas is usually less than 6...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N1/34
CPCG01N1/28G01N1/34
Inventor 汤顺林李朝鹏朱光有
Owner HENAN POLYTECHNIC UNIV
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