title: Possibility of methane conversion into heavier hydrocarbons using nanosecond lasers.
abstract: Effect of nanosecond lasers on the methane dissociation is experimentally studied by using three different laser wavelengths at 248 nm, 355 nm and 532 nm. C2H2 generation is measured as a major reaction product in experiments and the energy consumptions in production of this component are measured as 5.8 MJ/mol, 3.1 MJ/mol and 69.0 MJ/mol, for 355 nm, 532 nm and 248 nm wavelengths, respectively. The mechanism of conversion and production of new stable hydrocarbons is also theoretically investigated. It is found that in theoretical calculations, the ion-molecule reactions should be included and this leads to a unique approach in proper explanation of the experimental measurements.
authors.affiliation: Department of laser and Optical Engineering, University of Bonab, Bonab, Iran; Department of Physics, Sharif University of Technology, P.O. Box 11365-9567, Tehran, Iran.
authors.forename: H A
authors.initials: HA
authors.lastname: Navid
authors.affiliation: Department of Physics, Sharif University of Technology, P.O. Box 11365-9567, Tehran, Iran.
authors.forename: E
authors.initials: E
authors.lastname: Irani
authors.affiliation: Department of Physics, Sharif University of Technology, P.O. Box 11365-9567, Tehran, Iran. Electronic address: sadighi@sharif.ir.
authors.forename: R
authors.initials: R
authors.lastname: Sadighi-Bonabi
keywords: Conversion mechanism; Dissociation; Ion-neutral reactions; Methane; Nanosecond lasers