Bao Rima, Dong Chen, Lan Xingying, Feng Chengjing, Meng Qian, Zhao Kun. Content measurement of hydrocarbons in alkylate gasoline based on terahertz time-domain spectroscopy[J]. Infrared and Laser Engineering, 2015, 44(6): 1823-1826.
| Citation:
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Bao Rima, Dong Chen, Lan Xingying, Feng Chengjing, Meng Qian, Zhao Kun. Content measurement of hydrocarbons in alkylate gasoline based on terahertz time-domain spectroscopy[J]. Infrared and Laser Engineering, 2015, 44(6): 1823-1826.
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Content measurement of hydrocarbons in alkylate gasoline based on terahertz time-domain spectroscopy
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Bao Rima1,2,3
,
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Dong Chen2,3
,
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Lan Xingying1
,
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Feng Chengjing2,3
,
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Meng Qian2,3
,
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Zhao Kun1,2,3
- 1.
State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China;
- 2.
Beijing Key Laboratory of Optical Detection Technology for Oil and Gas,China University of Petroleum,Beijing 102249,China;
- 3.
Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric Detection,China Petroleum and Chemical Industry Federation (CPCIF),Beijing 100723,China
- Received Date: 2014-10-10
- Rev Recd Date:
2014-11-15
- Publish Date:
2015-06-25
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Abstract
In this work, terahertz time-domain spectroscopy(THz-TDS) was used to measure the content of hydrocarbons in alkylate gasoline as a new kind of non-destructive testing. 2,4,4-trimethyl-pentene(2,4,4-TMP), a representative kind of olefin, was mixed in alkylate gasoline. The spectral response of the samples containing different 2,4,4-TMP in terahertz band was analyzed. The results showed that amplitude of samples had a significant change in signals and varied linearly with content of 2,4,4-TMP changed. The curves, fitting by maximum and minimum values(amplitude) of spectra, were used to predict two unknown sample concentration. As a result, the error is less than 0.5%. Meanwhile, the absorption coefficient of samples were analyzed. The research indicates that THz -TDS technique is very suitable for detection of composition and content of hydrocarbons in gasoline.
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