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Sampling and sample preparation system and sampling and sample preparation method

A sample preparation system and carbon dioxide technology, which are applied in separation methods, chemical instruments and methods, preparation of samples for testing, etc., can solve the difficulty in formulating subsidy standards and subsidy policies for biomass co-firing power generation, restricting co-firing power generation technology and its Market development, lack of biomass mixing and other issues, to achieve the effect of improving sampling efficiency, reducing costs, and improving detection accuracy

Active Publication Date: 2018-05-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At low blending ratios, accelerator mass spectrometry is the most accurate way to detect carbon-14 activity, but it cannot be popularized due to the high cost of the instrument
[0009] Due to the current lack of effective and reliable detection technology and devices for the amount of biomass blending, it is difficult for governments around the world to formulate subsidy standards and subsidy policies for biomass co-combustion power generation, which limits the development of co-combustion power generation technology and its market

Method used

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  • Sampling and sample preparation system and sampling and sample preparation method
  • Sampling and sample preparation system and sampling and sample preparation method
  • Sampling and sample preparation system and sampling and sample preparation method

Examples

Experimental program
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Embodiment approach 1

[0089] The first embodiment of the present invention provides a sample preparation system, which is set in a coal-mixed biomass power station, see figure 1 Shown, including:

[0090] The sampling pipe 7 connected to the boiler flue 6 of the coal-mixed biomass power plant is arranged in sequence from the end close to the boiler flue 6 to the end far away from the boiler flue 6 of the sampling pipe 7:

[0091] Filter device 2, mass flow controller 3, carbon dioxide trap 4 and air extraction device 5.

[0092] The sampling system also includes a carbon dioxide transfer device 8 and a carbon-14 test device 1. The carbon dioxide transfer device 8 is used to transfer the carbon dioxide in the carbon dioxide trap 4 to the carbon-14 test device 1 and the carbon-14 test device 1 is used to test carbon dioxide. Carbon-14 measurement.

[0093] figure 1 The arrow in indicates the direction of carbon dioxide transfer.

[0094] Among them, the carbon dioxide trap 4 mentioned in this embodiment may b...

Embodiment approach 2

[0127] The second embodiment of the present invention provides a sampling and sample preparation system. The second embodiment is a further improvement of the sampling and sample preparation system of the first embodiment. The main improvement is that in the second embodiment of the present invention , See image 3 As shown, carbon dioxide trap 4 includes:

[0128] A capture container 41 for fixing carbon dioxide and a temperature adjustment device 42 for adjusting the temperature of the capture container 41.

[0129] An emptying valve 71 is installed on the sampling pipe 7 where the air extraction device 5 and the carbon dioxide trap 4 are connected, and the sampling pipe 7 is equipped with a front-end valve at the position connecting the mass flow controller 3 and the carbon dioxide trap 4 Valve 72.

[0130] The transfer device includes a transfer pipe 81 connected to the carbon dioxide trap 4 at one end, and the other end of the transfer pipe 81 is connected to the carbon-14 test...

Embodiment approach 3

[0144] The third embodiment of the present invention provides a sampling and sample preparation system. The third embodiment is an improvement of the second embodiment of the sampling and sample preparation system. The main improvement lies in that, in the third embodiment of the present invention, See Figure 5 As shown, the transfer pipe 81 is sequentially arranged from the part close to the carbon dioxide trap 4 to the part far away from the carbon dioxide trap 4:

[0145] The gas compressor 83, the pressure vessel 84, the second transfer valve 85 and the transfer pump 86.

[0146] The first transfer valve 82 is arranged between the gas compressor 83 and the carbon dioxide trap 4;

[0147] The gas compressor 83 is used to compress carbon dioxide into a liquid or supercritical state in the pressure vessel 84.

[0148] The transfer pump 86 is used to transfer the carbon dioxide in the pressure vessel 84 to the carbon-14 testing device 1.

[0149] This embodiment also provides a sampli...

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Abstract

The invention relates to the field of isotope detection and discloses a sampling and sample preparation system and method. The sampling and sample preparation system is arranged in a coal blended biomass power station and comprises a sampling pipeline communicated with a boiler flue of the coal blended biomass power station; a filtering device, a mass-flow controller, a carbon dioxide trap and anexhausting device are arranged on the sampling pipeline in sequence from one end close to the boiler flue to one end far away from the boiler flue. The sampling and sample preparation system further comprises a carbon dioxide transferring device and a carbon-14 testing device; the carbon dioxide transferring device is used for transferring carbon dioxide in the carbon dioxide trap to the carbon-14testing device; the carbon-14 testing device is used for testing carbon-14 metering of carbon dioxide. The sampling and sample preparation system and method can be used for rapidly calculating a blended combustion ratio of the coal blended biomass power station.

Description

Technical field [0001] The invention relates to the field of isotope detection, and discloses a sampling and sample preparation system and a sampling and sample preparation method. Background technique [0002] At present, coal is still the main energy source of the power industry. With the development of society and the continuous improvement of economic level, people's demand for electricity has increased sharply, and coal reserves have fallen sharply, while also causing great damage to the natural environment. [0003] Biomass energy is a kind of carbon-containing renewable energy. Its "carbon neutral" characteristic makes it possible to use biomass energy to replace some fossil energy represented by coal, reduce carbon dioxide emissions and alleviate the greenhouse effect. [0004] Biomass blended coal combustion is an excellent way to use biomass energy on a large scale. It can not only reduce pollutants and carbon dioxide emissions, but also can efficiently use low calorific va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22G01N1/28G01N1/38
CPCG01N1/2205G01N1/2258G01N1/28G01N1/38G01N2001/386G01N2001/227G01N2001/4033F23N5/003F23N2900/05002B01D2257/504F23C2900/01001G01N33/004F23N2239/02Y02A50/20Y02E20/32G01N33/0093B01D53/50B01D53/346G01T1/204B01D2258/0283
Inventor 骆仲泱唐宇星余春江方梦祥王勤辉王涛
Owner ZHEJIANG UNIV
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