The invention is directed to a Zeolite-Y having a SiO2/AI2O3 ratio of greater than 10 mol/mol, a unit cell size smaller than 24.45 Å, a micropore volume greater than 0.18 ml/g, a mesopore volume greater than 0.35 ml/g, a total surface area greater than 700 m2/g and a selectivity number greater than 0.50. The selectivity number is presented as [(B350+L350)/(L150+B150)]. B350 is the Bronsted acidity of the zeolite-Y as measured by Fourier Transformed Infrared spectroscopy after pyridine desorption at 350 °C. L350 is the Lewis acidity of the zeolite-Y as measured by Fourier Transformed Infrared spectroscopy after pyridine desorption at 350 °C. B150 is the Bronsted acidity of the zeolite-Y as measured by Fourier Transformed Infrared spectroscopy after pyridine desorption at 150 °C. L150 is the Lewis acidity of the zeolite-Y as measured by Fourier Transformed Infrared spectroscopy after pyridine desorption at 150 °C and wherein the B350, L350, B150 and L150 are measured as described in 'Section A'.
B01J 29/08 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y
B01J 29/16 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
B01J 37/02 - Impregnation, coating or precipitation
2.
MESOPOROUS ZEOLITES PREPARED BY ALKALINE TREATMENT WITH PRECIPITATES
The present invention relates to processes for the preparation of mesoporous zeolites by post-synthetic technologies, the properties of resulting materials, and the use of the resulting materials as catalysts in the refining and petrochemical industry.
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
The present invention relates to the field of dewaxing of hydrocarbon feeds. More in particular, it relates to the use of alkaline-treated mesoporous zeolites and catalysts encompassing the same for the dewaxing of hydrocarbon feeds. It was found that the zeolites and catalysts of the present invention can significantly reduce cracking of the hydrocarbon feed, and accordingly significantly reduce liquid hydrocarbon feed loss during processes such as dewaxing.
C10G 45/64 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour pointSelective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
B01J 29/40 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
B01J 29/42 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11 containing iron group metals, noble metals or copper
B01J 29/72 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of types characterised by their specific structure not provided for in groups containing iron group metals, noble metals or copper
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
The invention is broadly drawn to a process to introduce mesoporosity in faujasite zeolites with Si/Al<5 and unit cell sizes below 24.58 Angstrom by an inventive sequence of acid and base treatments, yielding superior physico-chemical and catalytic properties compared to the materials prepared according to the teachings known in the state of the art. Part of the invention relates to the acid step which is executed in the presence of a salt of which the anion is able to form multi-ligand complexes with aluminum, and of which a specific amount of cations are protonic (ca. 90% to 20% of the total cations with −3
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
B01J 29/08 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y
The present invention relates to processes for the preparation of mesoporous zeolites by post-synthetic technologies, the properties of resulting materials, and the use of the resulting materials as catalysts in the refining and petrochemical industry.
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
The invention is broadly drawn to a process to introduce mesoporosity in faujasite zeolites with Si/Al<5 and unit cell sizes below 24.58 Angstrom by an inventive sequence of acid and base treatments, yielding superior physico-chemical and catalytic properties compared to the materials prepared according to the teachings known in the state of the art. Part of the invention relates to the acid step which is executed in the presence of a salt of which the anion is able to form multi-ligand complexes with aluminum, and of which a specific amount of cations are protonic (ca. 90% to 20% of the total cations with -3
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
B01J 29/08 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y
B01J 35/10 - Solids characterised by their surface properties or porosity
B01J 29/10 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof of the faujasite type, e.g. type X or Y containing iron group metals, noble metals or copper
patents
