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Qualitative and quantitative analysis method for hydrogenated tail-oil long and straight side chain cycloparaffin and alkylbenzene

A technology for the quantitative analysis of paraffins, applied in analytical materials, measuring devices, material separation, etc.

Inactive Publication Date: 2009-08-12
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of qualitative and quantitative analysis method of hydrogenation tail oil long straight side chain naphthenes and alkylbenzene, by comparing different analysis methods, set up suitable hydrogenation tail oil long straight side chain naphthenes and alkanes The qualitative analysis method of benzene adopts the method of considering the influence of the response factor in the quantitative analysis, which solves the problem of quantitative calculation of substances without standard samples

Method used

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  • Qualitative and quantitative analysis method for hydrogenated tail-oil long and straight side chain cycloparaffin and alkylbenzene
  • Qualitative and quantitative analysis method for hydrogenated tail-oil long and straight side chain cycloparaffin and alkylbenzene
  • Qualitative and quantitative analysis method for hydrogenated tail-oil long and straight side chain cycloparaffin and alkylbenzene

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Embodiment 1

[0073] Sample: HVGO1 was diluted 10 times with n-hexane, and Shimadzu's GCMS-QP2010 (EI) instrument was used. The temperature of the injection port is 250°C, helium is used as the carrier gas, the carrier gas flow rate is 1ml / min, the sample is injected in a split mode, the split ratio is 15:1, the chromatographic column: HP-5ms 60m×0.32mm×0.25um, the programmed temperature control is Keep at 25°C for 8 minutes, raise to 60°C at 4°C / min and keep for 10 minutes, rise to 200°C at 1°C / min and keep for 15 minutes, rise to 323°C at 4°C / min and keep for 35 minutes. The ion source temperature is 200°C, the interface temperature is 280°C, the injection volume is 1ul, and the spectra are collected in SIM mode.

Embodiment 2

[0075] Sample: HVGO2 was diluted 10 times with n-hexane, using Shimadzu's GCMS-QP2010(EI) instrument. The temperature of the injection port is 260°C, helium is used as the carrier gas, the carrier gas flow rate is 1.5ml / min, the sample is injected in a split flow mode, the split ratio is 18:1, the chromatographic column: HP-5ms 60m×0.32mm×0.25um, the temperature is controlled by the program Keep at 35°C for 10 minutes, rise to 40°C at 2°C / min and hold for 4 minutes, rise to 200°C at 1°C / min and hold for 8 minutes, rise to 300°C at 5°C / min and hold for 33 minutes. The ion source temperature is 200°C, the interface temperature is 300°C, the injection volume is 1ul, and the spectra are collected in SIM mode.

Embodiment 3

[0077] Sample: HVGO3 was diluted 10 times with n-hexane, using Shimadzu's GCMS-QP2010(EI) instrument. The temperature of the injection port is 270°C, helium is used as the carrier gas, the carrier gas flow rate is 2ml / min, the sample is injected in a split flow mode, the split ratio is 20:1, the chromatographic column: HP-5ms 60m×0.32mm×0.25um, the programmed temperature control is Keep at 35°C for 9 minutes, rise to 40°C at 2°C / min and hold for 5 minutes, rise to 200°C at 1°C / min and hold for 9 minutes, rise to 300°C at 5°C / min and hold for 32 minutes. The ion source temperature is 200°C, the interface temperature is 300°C, the injection volume is 1ul, and the spectra are collected in SIM mode.

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Abstract

The invention provides a method for qualitatively and quantitatively analyzing long straight side chain cyclane and alkylbenzene of hydrocracking tail oil, and belongs to the technical field of qualitative and quantitative analysis of detailed physical properties of the hydrocracking tail oil. The GC-MS is adopted for qualitatively analyzing compositions in raw materials and quantitatively analyzing the detailed compositions of the long straight side chain cyclane and alkylbenzene. The analytical method comprises the following steps: preparing samples; dissolving a sample HVGO5 by normal hexane; performing the qualitative analysis; and adopting an SIM method to draw an external standard curve to quantitatively analyze the detailed compositions of the long straight side chain cyclane and alkylbenzene. By comparing with different analytic methods, the method suitable for qualitatively analyzing the long straight side chain cyclane and alkylbenzene of the hydrocracking tail oil is established; moreover, the method for considering the influence of a response factor is adopted in the quantitative analysis, so that the problem of the quantitative calculation for materials without master standards is solved.

Description

technical field [0001] The invention belongs to the technical field of qualitative and quantitative analysis of detailed physical properties of hydrogenated tail oil, and in particular provides a qualitative and quantitative analysis method for hydrogenated tail oil with long straight side chain naphthenes and alkylbenzenes. Background technique [0002] "Hydroprocessing tail oil" is one of the by-products of hydrocracking. The products generated after hydrocracking of raw materials are mainly gas and liquid products including solvent oil, gasoline components and middle distillates, followed by a considerable part of unconverted oil, also known as hydrocracking tail oil. The distillate is mainly distributed between 350-525 ° C, also known as "unconverted oil". This oil circulates through the system, increasing energy consumption and reducing overall conversion, and must be removed from the system. The hydrocracking tail oil has also been well hydro-upgraded in the hydrocra...

Claims

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Application Information

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IPC IPC(8): G01N30/78G01N30/30
Inventor 魏芸杜世娟
Owner BEIJING UNIV OF CHEM TECH
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