III International Conference

PP-II-159ONE-STEP HYDROOLIGOMERIZATION OF BUTENES INTO ISOALKANESBasova I.A., Lavrenov A.V., Finevich V.P., Duplyakin V.K.Institute of Hydrocarbons Processing SB RAS, Omsk, RussiaE-mail: bia@incat.okno.ruFeatures of synthesis and properties of bifunctional (metal-acid) catalysts based on mixedoxides Al-Zr-B-O х with palladium dispersed on theirs surfaces have been viewed. Thepossibility of using of these catalysts in one-step hydrooligomerization of butenes intoisoalkanes for producing clean motor fuels has been shown.Catalytic reactions for synthesis of С 5 -С 8 isoalkanes play a key role in production of upto-datehigh-octane clean motor fuels. The technologies of dimerization of С 4 alkenes into С 8isoalkenes with further hydration attract attention of the researchers along with isomerizationand alkylation processes. In that way, it is possible to get products with research octanenumber from 80 to 100 depending on the feed. The main drawback of such processes is twosteptechnology which leads to increase in capital and operating costs. In this work thepossibility of conversion of butenes into isoalkanes on bifunctional Pd/Al-Zr-B-O х catalyst byone-step hydrooligomerization has been examined.On the first stage of this study the use of boria as anionic modifier for alumina, zirconiaand theirs compositions has been experimentally approved. In oligomerization of butenescatalytic activity of systems, modified with boria was two times higher than catalytic activityof samples obtained with hydrochloric and phosphoric acids.W, %100806040С9+С8TMPDMHC5-C7200100 120 150 170 200Temperature, о СFig. 1. Hydrocarbon type content of liquid products of hydrooligomerization(W – mass concentration; TMP – trimethylpentanes; DMH - dimethylhexanes)458