HIGH ACTIVITY ZSM-48 AND PARAFFIN REMOVAL METHODS Russian patent published in 2011 - IPC B01J29/70 B01J21/00 C10G45/64 B01J23/38 C01B39/48 C10G65/04 

FIELD: chemistry.

SUBSTANCE: invention relates to high activity ZSM-48. Described is a catalyst composition for removing paraffin from hydrocarbon material which contains ZSM-48 crystals, having molar ratio of silicon dioxide to aluminium oxide equal to or less than 110, which does not contain inoculating crystals different from ZSM-48 and does not contain ZSM-50 crystals.The invention also describes a method of producing ZSM-48 crystals contained in the composition described above, involving: preparation of an aqueous mixture of silicon dioxide or silicate, aluminium oxide or aluminic acid, hexamethonium salts and an alkaline base, where the mixture has the following molar ratios: silicon dioxide: aluminium oxide 70-110, base: silicon dioxide 0.1-0.3 and hexamethonium salt: silicon dioxide 0.01-0.05, and heating the mixture while stirring for a period of time and temperature sufficient for formation of crystals. The invention also describes a method of removing paraffin from hydrocarbon material in the presence of the catalyst composition described above.

EFFECT: obtained ZSM-48 crystals and a composition based on said crystals exhibit high activity during removal of paraffin from hydrocarbon material.

29 cl, 1 tbl, 6 dwg, 15 ex