from first principles PP-I-1

OY-IV-1Modeling of Associated Petroleum Gas Steam Reforming ProcessZyryanova М.М. 1,2,3 , Shigarov A.B. 1,2,3 , Snytnikov P.V. 1,2,3 , Belyaev V.D. 1 , Kirillov V.A. 1,2,3 ,Sobyanin V.A. 1,2,31 Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia2 Novosibirsk State University, Novosibirsk, Russia3 ”UNICAT” Ltd, Pr., Novosibirsk, Russiapvsnyt@catalysis.ruProcessing and utilization of associated petroleum gas (APG) is one of the key tasks ensuringthe progress of gas-and-oil producing industry in Russia. Several of the existing APGutilization approaches are focused on generation of electric power (in gas engines, gasturbines). In order to increase methane content and, consequently, methane number of the gasmixture, APG heavy hydrocarbon components can be converted into methane-hydrogenmixture by a process similar to a pre-reforming step of hydrogen production from natural gasand refinery gases in petrochemical processes. In contrast to the known petrochemical processconditions (pre-reforming is performed at 400-450 о C with high ratio of H 2 O/C), this processis performed at temperatures below 350 о C with low H 2 O content in the reaction gas mixturein order to prevent steam reforming of methane and obtain the highest methane concentration.In this work, laboratory studies of the reaction of steam reforming of hydrocarbons intomethane-hydrogen mixture were performed using APG-simulating methane-propanemixtures. Ni- and Ru-containing systems were studied as catalysts. Detailed kineticexperiments were performed and the most appropriate reaction scheme was proposed. In thepresence of water at low temperatures, the reaction of propane steam reforming proceedspredominantly; the main reaction products are hydrogen and carbon dioxide. As hydrogenappears in the reaction mixture, the exothermic reaction of hydrocarbon hydrocracking toproduce methane occurs simultaneously. In the presence of water, the reverse water gas shiftreaction does not proceed at temperatures below 350 о С; all catalysts demonstrate low COoutlet concentrations.AcknowledgementsThe work was performed using partial financial support by State Contract №P1015 in framework ofFFP 2009-2013, and State Contract №16.516.11.6006 in framework of FFP 2007-2013.102