摘要:
Catalytic compositions are described for hydrocarbons cracking containing at least two zeolitic components of which at least one zeolitic component containing aluminium in its structure is selected from among ITQ-7 zeolites, intergrowths of ITQ-7 zeolites, ITQ-7 zeolites exchanged with rare earths, intergrowths of ITQ-7 zeolites exchanged with rare earths, and combinations of them. These combinations are of utility as catalysts for cracking in FCC units and permit C 3 and C 4 olefins to be efficiently obtained along with high yields of gasoline. Also described is the use of a zeolitic material containing aluminium in its structure and selected from among ITQ-7 zeolites, intergrowths of ITQ-7 zeolites, ITQ-7 zeolites exchanged with rare earths, intergrowths of ITQ-7 zeolites exchanged with rare earths, and combinations of them, as a catalytic material in hydrocarbon catalytic cracking processes.
摘要:
The invention relates to a catalyst consisting of at least: one matrix comprising at least one oxide which is selected from an amorphous oxide, an oxide with low crystallinity and a mixture of both; at least one solid microporous crystalline material which, in the calcined and anhydrous state, has the molar composition X 2 O 3 : nYO 2 :m ZO 2 , in which X is a trivalent element such as, for example, A1, B, Fe, In, Ga, Cr, Y is at least one trivalent element that is different from Ge and Z is Ge, the value (n+m) is at least equal to 5 and can be between 5 and ∞, and the value of n/m is at least equal to 1; and at least one hydrogenating compound, preferably Pt, Pd, Ir, Ru, Rh, and Re or a combination of same. The invention also relates to the use of said catalyst in a process in order to improve the quality of diesel fractions.
摘要:
The invention relates to a catalyst consisting of at least: one matrix comprising at least one oxide which is selected from an amorphous oxide, an oxide with low crystallinity and a mixture of both; at least one solid microporous crystalline material which, in the calcined and anhydrous state, has the molar composition X2O3: nYO2:m ZO2, in which X is a trivalent element such as, for example, A1, B, Fe, In, Ga, Cr, Y is at least one trivalent element that is different from Ge and Z is Ge, the value (n+m) is at least equal to 5 and can be between 5 and INFINITY , and the value of n/m is at least equal to 1; and at least one hydrogenating compound, preferably Pt, Pd, Ir, Ru, Rh, and Re or a combination of same. The invention also relates to the use of said catalyst in a process in order to improve the quality of diesel fractions.