A method and device for detecting the mass yield of biochar
A detection method, biochar technology, applied in the direction of material excitation analysis, Raman scattering, etc., can solve the problem of inability to realize real-time detection and online analysis of biochar mass yield, unable to realize rapid detection of biochar mass yield, and test sample shape Require high-level problems to achieve the effect of shortening the measurement time, complete types and low cost
Active Publication Date: 2020-05-29
HUAZHONG UNIV OF SCI & TECH
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This method requires a complex industrial analysis and detection process for biochar, high requirements for the shape of the test sample, and long measurement time. It cannot realize the rapid detection of the mass yield of biochar, let alone the real-time detection and online analysis of the mass yield of biochar.
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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0031] Raman spectroscopy testing technology is a non-destructive testing method based on the principle of light scattering. When the excitation light is irradiated on the substance, the excitation light will interact with the molecules in the substance and cause the electrons to transition to a high-energy virtual state. The electrons in the high-energy virtual state will immediately transition to a low-energy level due to instability and emit light, which is scattered light. When the frequency of the scattered light is the same as the frequency of the incident light, it is the Rayleigh line, that is, elastic scattered light. When the frequency of the scattered light is different from the frequency of the incident light, ...
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The invention discloses a method for detecting the mass yields of charcoals. The method comprises the steps of S1, obtaining a plurality of charcoals produced by various biomasses at different pyrolysis temperatures and times; S2, obtaining a mass yield of each charcoal in the plurality of charcoals; S3, obtaining Raman spectral characteristic parameters of each charcoal in the plurality of charcoals; S4, correlating the mass yield of each charcoal to the corresponding Raman spectral characteristic parameters to generate a correlation relational expression; S5, obtaining Raman spectral characteristic parameters of a to-be-tested charcoal; and S6, inputting the Raman spectral characteristic parameters of the to-be-tested charcoal into the correlation relational expression to obtain a corresponding mass yield. Furthermore, the invention provides a device for detecting the mass yields of the charcoals. The method and the device are based on Raman spectrum analysis, are capable of quickly detecting the mass yields of the charcoals, and are fast, reliable and simple to operate. The method is not only suitable for the real-time online detection of the charcoal manufacturers, but also suitable for the detection of the mass yields of the charcoals in the laboratory research processes.
Description
technical field [0001] The invention relates to the technical field of biochar detection, in particular to a method and device for detecting the mass yield of biochar. Background technique [0002] Biochar is a carbon-rich solid product in the process of thermal conversion of biomass. After heat treatment, biochar has higher energy density, better hydrophobicity, and is loose and porous. It is a better adsorbent. It is used in the treatment of organic wastewater, or as a soil fertilizer for soil improvement, or as a fuel for combustion, etc. Biochar can be obtained by pyrolysis of any kind of biomass, including agricultural and forestry waste, kitchen waste, sludge, etc. Therefore, monitoring and control are particularly important in the industrial production of biochar. The mass yield of biochar is a key production index in the industrial production process of biochar, which can directly reflect the yield of biochar and the degree of conversion of biochar, and is closely r...
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IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 向军徐俊刘佳薇章鑫许凯何立模韩亨达凌鹏苏胜汪一胡松
Owner HUAZHONG UNIV OF SCI & TECH