Skeleton Hydroisomerization of Hexene-1 in the Presence of Synthesis Gas on Zn-Cr/HZSM-5 Catalyst
Progress in Zeolite and Microporous Materials : 11th International Zeolite Conference
12-17 Aug 1996
||Progress in Zeolite and Microporous Materials : Proceedings of the 11th International Zeolite Conference, 12-17 August 1996, Seoul, Korea
Studies in Surface Science and Catalysis
||photovoltaic plants; hydrogen; fuel cell; electrolyser; smooting; grid connected
Construction-Technological Institute of Catalytic and Adsorption Processes on Zeolites “Zeosit” of Siberian Branch of RAS, Pr. Lavrentyeva, 5, Novosibirsk, 630090, Russia
The comparison of selectivity of hydroisomerization of hexene-1 in H2 and synthesis-gas flow on the Zn-Cr/HZSM-5 catalyst under the pressure 10–20 atm and temperature 340–400°C has been performed. Hydrocarbons mixtures containing 70–80 wt.% of methylpentanes, isopentanes, aromatic hydrocarbons and oligomers C7+ have been obtained. At high temperatures, reactions of chain hydroisomerization and oligomerization of olefines with the further hydro-cracking of oligomers down to isopentane and light hydrocarbons are observed. In the hydrogen medium reactions of hydrocracking decreases due to the drop of temperature and pressure. It results in the significant increase of C7-C9 aliphatic hydrocarbons content in reaction products. The highest selectivity towards C6 aliphatic hydrocarbons was obtained at the temperature 380°C. As a result of increasing CO content, in reaction flow selectivity to hydroconversion of hexene-1 to C6 isoparaffines decreases, selectivity towards aromatic hydrocarbons and oligomers C7+ grows , and the yield of hydrocarbons C5+ increases.