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Recently, as a direct consequence of the dwindling world oil reserves andthe growing awareness of the environmental problems associated with the use of coalas energy source, there is growing interest in cheaper, abundant and cleaner burningmethane. The Gas-to-Liquid technologyoffers perhaps themost attractive routes for the exploitation of the world huge and growing naturalgas resources. Usingthis process the erstwhile stranded gas is converted to premium grade liquid fuelsand chemicals that are easily transported. However, a widespread application ofthe GTL process is being hampered by economical and technical challenges. Thehigh cost of synthesis gas, for instance, weighs heavily on the economics and competitivenessof the process limiting its wider application. This work presented a modified Gas-to-Liquidprocess that eliminates the costly synthesis gas production step. The proposed process utilized an alternative pathway for methane activationvia the production of chloromethane derivatives which are then converted to hydrocarbons. It established that hydrocarbonsmainly olefins can be economically produced from di- and tri-chloro- methanes over a typical iron-based Fischer Tropschcatalysts in a moving bed reactor at industrially relevant conditions. Some of theattractions of the proposed process include a the elimination of the costly air separationplant requirement b high process selectivity and c significant reduction of carbondioxide emissions thereby savingon feedstock loss and the costly CO2 removal and isolation processes.

KEYWORDS

Gas-to-Liquid; Methane Chlorination; Synthesis Gas; Olefinic Hydrocarbons; Iron-Based Catalyst; Moving-Bed Reactor; Deacon Process; Carbon-Dioxide Emission

Cite this paper

Rabiu, A. and Yusuf, I. 2013 Industrial Feasiblity of Direct Methane Conversion to Hydrocarbons over Fe-Based Fischer Tropsch Catalyst. Journal of Power and Energy Engineering, 1, 41-46. doi: 10.4236-jpee.2013.15006.





Autor: Ademola M. Rabiu, Isa M. Yusuf

Fuente: http://www.scirp.org/



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