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Simple CO2 trapping device and measuring method for detecting <13>C and <14>C in CO2

A technology for collecting bags and collecting air, which is applied in the direction of measuring devices, sampling devices, and the preparation of test samples. It can solve the problems of oil and gas component interference, low monitoring sensitivity, and inconvenient long-distance transportation. The effect of difficult transportation and low price

Inactive Publication Date: 2016-01-20
NORTHWEST UNIV
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Problems solved by technology

However, this method has the following problems: (1) the analysis is interfered by the oil and gas components in the air; (2) the gas is collected with gas bags, which is not convenient for long-distance transportation; transportation difficulties

Method used

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  • Simple CO2 trapping device and measuring method for detecting &lt;13&gt;C and &lt;14&gt;C in CO2
  • Simple CO2 trapping device and measuring method for detecting &lt;13&gt;C and &lt;14&gt;C in CO2

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] see figure 1 , an airborne CO capture 2 A simple device consisting of introducing air through a conduit (1) into a storage bottle (2) containing sodium hydroxide solution, the CO in the air 2 Gradually absorbed by sodium hydroxide, under the action of atmospheric pressure, open the regulating valve (6), the sodium hydroxide solution passes through the infusion tube (4), flows through the filter screen (5), and passes through the dropper (7), vent hole ( 8), will eventually absorb CO 2 The sodium hydroxide solution enters the collection bag (9). Release the air in the liquid storage bottle (2), put the sodium hydroxide solution in the collection bag (9) back into the liquid storage bottle (2), let in a constant volume of air again, repeat the above steps, and absorb the air again. CO 2 , the same method continuously loops 5 times.

[0019] see f...

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Abstract

The invention discloses a simple CO2 trapping device and a measuring method for detecting <13>C and <14>C in CO2. The device for trapping CO2 in air comprises a NaOH solution storage bottle (2), a collecting bag (9) and a solution delivery tube (4) connecting the NaOH solution storage bottle (2) and the collecting bag (9), wherein the air enters the NaOH solution storage bottle (2) through a guide tube (1), a regulating valve (6) is used for controlling the flow velocity of a NaOH solution in the storage bottle (2), a filter screen (5) is used for filtering insoluble impurities, a dropper (7) is used for monitoring the flow velocity of the NaOH solution flowing through the guide tube (1), and an exhaust hole (8) is used for preventing gas from entering the collecting bag (9). The NaOH solution is adopted for selective absorption of CO2 in the air, so that a trapping function is performed on CO2 in the air; by means of design of the NaOH solution storage bottle with the constant volume, the volume of the collected air can be controlled quantitatively, the NaOH solution repeatedly circulates for many times to absorb CO2, and the concentration of trapped CO2 can be increased greatly and reaches the limit of detection. The designed CO2 trapping device is simple, easy to use, fast, convenient and low in cost.

Description

technical field [0001] The invention relates to an online capture CO 2 device and detection of CO 2 middle 13 C and 14 A simple method for the determination of C content. Background technique [0002] Energy saving and emission reduction is one of the goals of the current Chinese government. In order to reduce carbon dioxide emissions, the fastest way in the world is carbon capture and storage technology (CCS technology). That is to use the carbon dioxide capture device to capture and liquefy the carbon dioxide gas emitted from power plants, coal chemical plants, cement plants, steel plants, etc., transport and inject it into the oil field in the later stage of development for oil displacement (CO 2 -EOR) and storage, or injection into abandoned oil fields for storage. It can also be injected into the deep underground saline layer for geological storage, and ensure that the storage will not leak to the surface and the atmosphere for at least 200 to 1000 years. In order...

Claims

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Application Information

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IPC IPC(8): G01N1/24G01N1/40G01N27/62
Inventor 卜春苗卫引茂马劲风
Owner NORTHWEST UNIV
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