Photo-conversion of methane into higher hydrocarbons using 355 NM laser radiation

M. A. Gondal; Zain H. Yamani; A. Dastgeer; M. A. Ali; A. Arfaj

doi:10.1081/SL-120024581

Photo-conversion of methane into higher hydrocarbons using 355 NM laser radiation

M. A. Gondal^*, Zain H. Yamani, A. Dastgeer, M. A. Ali, A. Arfaj

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A laser-based technique for the conversion of methane into higher hydrocarbons and hydrogen has been developed. This technique involves the photo-dissociation of methane using a high power pulsed ultraviolet laser at 355 nm. The reaction products, such as CH, CH₂, C₂H ₂, atomic and molecular hydrogen, are characterized by real-time laser induced fluorescence for the first time, to our knowledge. In addition to this online fluorescence detection of the species, gas chromatography is also applied to analyze the stable hydrocarbon products generated due to photo-dissociation of methane. Another interesting result of the laser excitation of methane is the observation of Stimulated Raman lines (Stokes and Antistokes) observed in the 150-850 nm region, which is a manifestation of the inherent characteristics of the laser radiation such as high directionality and high intensity.

Original language	English
Pages (from-to)	313-326
Number of pages	14
Journal	Spectroscopy Letters
Volume	36
Issue number	4
DOIs	https://doi.org/10.1081/SL-120024581
State	Published - 2003

Keywords

Hydrocarbons
Laser photolysis
Methane conversion
Multi-photon dissociation

ASJC Scopus subject areas

Analytical Chemistry
Atomic and Molecular Physics, and Optics
Spectroscopy

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10.1081/SL-120024581

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title = "Photo-conversion of methane into higher hydrocarbons using 355 NM laser radiation",

abstract = "A laser-based technique for the conversion of methane into higher hydrocarbons and hydrogen has been developed. This technique involves the photo-dissociation of methane using a high power pulsed ultraviolet laser at 355 nm. The reaction products, such as CH, CH2, C2H 2, atomic and molecular hydrogen, are characterized by real-time laser induced fluorescence for the first time, to our knowledge. In addition to this online fluorescence detection of the species, gas chromatography is also applied to analyze the stable hydrocarbon products generated due to photo-dissociation of methane. Another interesting result of the laser excitation of methane is the observation of Stimulated Raman lines (Stokes and Antistokes) observed in the 150-850 nm region, which is a manifestation of the inherent characteristics of the laser radiation such as high directionality and high intensity.",

keywords = "Hydrocarbons, Laser photolysis, Methane conversion, Multi-photon dissociation",

author = "Gondal, {M. A.} and Yamani, {Zain H.} and A. Dastgeer and Ali, {M. A.} and A. Arfaj",

year = "2003",

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language = "English",

volume = "36",

pages = "313--326",

journal = "Spectroscopy Letters",

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TY - JOUR

T1 - Photo-conversion of methane into higher hydrocarbons using 355 NM laser radiation

AU - Gondal, M. A.

AU - Yamani, Zain H.

AU - Dastgeer, A.

AU - Ali, M. A.

AU - Arfaj, A.

PY - 2003

Y1 - 2003

N2 - A laser-based technique for the conversion of methane into higher hydrocarbons and hydrogen has been developed. This technique involves the photo-dissociation of methane using a high power pulsed ultraviolet laser at 355 nm. The reaction products, such as CH, CH2, C2H 2, atomic and molecular hydrogen, are characterized by real-time laser induced fluorescence for the first time, to our knowledge. In addition to this online fluorescence detection of the species, gas chromatography is also applied to analyze the stable hydrocarbon products generated due to photo-dissociation of methane. Another interesting result of the laser excitation of methane is the observation of Stimulated Raman lines (Stokes and Antistokes) observed in the 150-850 nm region, which is a manifestation of the inherent characteristics of the laser radiation such as high directionality and high intensity.

AB - A laser-based technique for the conversion of methane into higher hydrocarbons and hydrogen has been developed. This technique involves the photo-dissociation of methane using a high power pulsed ultraviolet laser at 355 nm. The reaction products, such as CH, CH2, C2H 2, atomic and molecular hydrogen, are characterized by real-time laser induced fluorescence for the first time, to our knowledge. In addition to this online fluorescence detection of the species, gas chromatography is also applied to analyze the stable hydrocarbon products generated due to photo-dissociation of methane. Another interesting result of the laser excitation of methane is the observation of Stimulated Raman lines (Stokes and Antistokes) observed in the 150-850 nm region, which is a manifestation of the inherent characteristics of the laser radiation such as high directionality and high intensity.

KW - Hydrocarbons

KW - Laser photolysis

KW - Methane conversion

KW - Multi-photon dissociation

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U2 - 10.1081/SL-120024581

DO - 10.1081/SL-120024581

M3 - Article

AN - SCOPUS:0141730325

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VL - 36

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EP - 326

JO - Spectroscopy Letters

JF - Spectroscopy Letters

IS - 4

ER -

Photo-conversion of methane into higher hydrocarbons using 355 NM laser radiation

Abstract

Keywords

ASJC Scopus subject areas

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