Production of High-Octane Fuel Components with Improved Environmental Performance

The new catalyst for isomerization process of light hydrocarbons based on novel synthesized inorganic superacids has been developed. With this purpose synthesized a number of mixed heteropolyanions with a modified Keggin structure containing different transition metals (including platinum group metals). Developed the technology of preparation of superacid catalysts with a coating of modified heteropolycomplexes on different carriers. The efficiency of the developed HPC catalyst in the process of isomerization of light hydrocarbons is evaluated.

Mesoporous superacid catalysts for valorisation of refinery naphtha stream

TPA silanol interactions in mesoporous TPA silica composites govern the strength of acid sites, activity and selectivity.

Comparison of Ni-S2O82–/ZrO2–Al2O3 Catalysts prepared by Microemulsion and Impregnation Methods and their Performance for Isomerisation

Bifunctional Ni-S2O82–/ZrO2–Al2O3 (Ni-SSZA) solid superacid catalysts were prepared by microemulsion (Ni-SSZA-M) and impregnation (Ni-SSZA-I) methods and their performance for n-pentane isomerisation was studied. The catalysts were characterised by BET, XPS, XRD, FTIR, Py–FTIR, TPR, TEM and CO uptake. The results show that, compared with the Ni-SSZA-I catalyst, the Ni-SSZA-M catalyst shows smaller and more uniform Ni particles, higher surface area, smaller crystallite size of tetragonal ZrO2, more metal active sites and stronger acidity. The activity test indicated that loading Ni by the microemulsion method can significantly improve the isomerisation activity of the catalyst at lower reaction temperatures. In comparison with the Ni-SSZA-I catalyst, the isopentane yield for Ni-SSZA-M was improved by 11.6% and the optimum temperature was decreased by 60 °C.