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Measuring method of carbon, hydrogen and nitrogen contents in biomass fuel

A technology of biomass fuel and carbon, hydrogen and nitrogen elements, which is applied in the direction of measuring devices, analyzing materials, and material analysis through optical means, can solve the problems of low accuracy of measurement results and unsuitability for biomass detection, and achieve accurate measurement results High precision, fast and efficient measurement, and low implementation cost

Inactive Publication Date: 2014-01-15
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

However, the existing high-temperature combustion infrared-thermal conductivity is designed based on coal detection, and the parameters in the laboratory operation process are not suitable for the detection of biomass, and the accuracy of the measurement results is low

Method used

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  • Measuring method of carbon, hydrogen and nitrogen contents in biomass fuel
  • Measuring method of carbon, hydrogen and nitrogen contents in biomass fuel
  • Measuring method of carbon, hydrogen and nitrogen contents in biomass fuel

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Embodiment Construction

[0041] figure 1 with figure 2 It shows a schematic flow chart of the method for determining the content of carbon, hydrogen and nitrogen elements in biomass fuel of the present invention. Before the determination method of the present invention starts, it should be checked to confirm that the instruments and equipment required by the present invention are in good working condition.

[0042] The assay method of carbon hydrogen nitrogen element content in the biomass fuel of the present invention comprises the following steps:

[0043] Step 1, sampling the tested biomass fuel between 0.050g and 0.100g, and weighing the tested sample to obtain the sample mass, the mass of the tested sample is weighed to 0.0002g;

[0044] Step 2: Fully burn the tested sample with a heating furnace. The heating furnace is selected from the heating furnace of the vario MACRO CHN elemental analyzer, which contains three heating tubes, which are the main combustion tube (or primary combustion tube)...

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Abstract

The invention discloses a measuring method of carbon, hydrogen and nitrogen contents in biomass fuel. The measuring method comprises the following steps of burning a sample to be measured, collecting mixed gas generated by burning, measuring and calculating full carbon, full hydrogen and full nitrogen percentage contents of the sample to be measured, and calculating the carbon, hydrogen and nitrogen contents in the biomass fuel to be measured. The method has the advantages that the measuring accuracy of the method is higher than that of an infrared-thermal conductance method of a coal sample, the measuring efficiency of the method is higher than the combined measuring efficiency of standard measuring methods, namely a semimicro Kelvin method and a three-section furnace method, and the method is applicable to quickly and efficiently measuring the carbon, hydrogen and nitrogen contents in the biomass fuel, can achieve high accuracy of measuring results and is low in implementation cost.

Description

technical field [0001] The invention relates to a method for measuring the content of carbon, hydrogen and nitrogen elements in biomass fuel. Background technique [0002] Due to the dual attributes of biomass being environmentally friendly and renewable, biomass fuel is considered to be the most potential resource to replace petroleum. According to statistics, the existing amount of biomass resources in my country is 6.74×10 8 More than t standard coal is considered to be the most abundant potential renewable energy resource in the world. The basic properties of biomass, such as elemental analysis indicators, have a crucial impact on biomass fuel collection, processing, application in feedstock, and selection of combustion boilers. Therefore, it is of great significance in both theory and practice to accurately determine the element analysis indicators of biomass fuel. Compared with coal, solid biomass fuels have a wide range of carbon content in blends and mixtures (up t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3504
Inventor 张宏亮苏伟李薇付殿峥汤烨
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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