Method for determining initial boiling point and final boiling point of three-oil mixture in tar
A determination method and three-mixed oil technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of damage to the health of analysts, pollution in the distillation process, cumbersome operation process, etc., to achieve high accuracy, improve the working environment, The effect of improving work efficiency
Inactive Publication Date: 2012-01-25
宣化钢铁集团有限责任公司 +1
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The operation process of this method is cumbersome, the analysis time is long (generally more than 50 minutes), errors are prone to occur, the distillation process is seriously polluted, and the highly toxic benzene compounds and polycyclic aromatic hydrocarbons produced during the distillati
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[0046] Example: Take 1mL of the three-mixed oil sample in a 12mL sample bottle, add 5mL of acetone to dissolve, take 0.4 μL of the sample after mixing and inject it into the chromatograph to obtain the corresponding chromatogram, use the above-mentioned first regression curve equation y=- 1.2161x+213.53 and the second regression curve equation y=1.9715x+266.63 analysis results; calculate Σ 萘前 =6.22, the corresponding initial boiling point is 206°C, calculate Σ 芴后 =8.15, the dry point is 283°C.
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The invention discloses a method for determining an initial boiling point and a final boiling point of a three-oil mixture in tar, which comprises the following steps: carrying out determination on a three-oil mixture sample to be determined by using the capillary chromatography; calculating the sum of front component contents of naphthalene; calculating the sum of a fluorine content and rear component contents of the fluorine; carrying out detection on the three-oil mixture sample by using a distillation method, and recording the data of the initial boiling point and the data of the final boiling point; carrying out tabulating on the data of the initial boiling point and the corresponding sum of front component contents of naphthalene, and making a scatter diagram and a trend line, thereby obtaining a first regression curve equation; carrying out tabulating on the data of the final boiling point and the corresponding sum of rear component contents of fluorine, and making a scatter diagram and a trend line, thereby obtaining a second regression curve equation; and calculating the initial boiling point and final boiling point of the three-oil mixture in the process of three-oil mixture production by using the first regression curve equation and the second regression curve equation. The method disclosed by the invention is high in accuracy, is rapid (the method can be implemented just within 20 minutes) and convenient, and has no pollution; and by using the method, the working strength of an analyst can be reduced, the working environment can be improved, the working efficiency can be enhanced, and the physical health of the testing personnel can be ensured.
Description
technical field [0001] The invention relates to a method for measuring triple-mixed oil, in particular to a method for measuring the initial boiling point and dry point of triple-mixed oil in tar. Background technique [0002] At present, in the domestic crude tar processing industry, the tar distillation system generally adopts a single-furnace single-tower tar distillation process, that is, the crude tar is heated through a tube furnace, and after the water and asphalt are separated by the primary evaporator and the secondary evaporator, the oil and gas are mixed. In the fractionation column, the di-light oil, tri-mixed oil and anthracene oil are separated, and the tri-mixed oil is a mixture of three valuable fractions including phenol oil, naphthalene oil and washing oil. Its quality and quantity are the key to the control of tar processing technology. It directly affects the benefit of tar processing, and it is of great significance to quickly and accurately measure the ...
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Inventor 闫俊杰魏小珍闫志武李艳霞赵子贵南国华蒋桂萍王跃欣张佳伟孙永青李祥
Owner 宣化钢铁集团有限责任公司
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