摘要:
Cracking catalysts and their use in cracking processes are disclosed. The cracking catalyst are prepared using mixtures of catalytic cracking catalysts and selected silicoaluminophosphate molecular sieves of U.S. Pat. No. 4,440,871.
摘要:
Xylene isomerization is carried out using specific non-zeolitic molecular sieve catalyst, e.g., the silicoaluminophosphate molecular sieves of U.S. Pat. No. 4,440,871, to provide improved production of p-xylene from C.sub.8 aromatic compounds and the conversion of ethylbenzene to a xylene.
摘要:
Catalytic cracking processes utilizing selected specific silicoaluminophosphate molecular sieves of U.S. Pat. No. 4,440,871. Processes using such catalysts provide product mixtures different from those obtained by use of catalysts based on zeolitic aluminosilicates. In preferred embodiments, SAPO-37 is utilized.
摘要:
Cracking catalysts and their use in cracking processes are disclosed. The cracking catalysts are prepared using novel non-zeolitic molecular sieves and, optionally, traditional zeolitic aluminosilicate cracking components.
摘要:
Cracking catalysts containing silicoaluminophosphate molecular sieves are disclosed. Such catalysts are derived from specific silicoaluminophosphate molecular sieves of U.S. Pat. No. 4,440,871. The catalyst when used for the conversion of hydrocarbons provide product mixtures different from those obtained by use of aluminosilicates based catalysts.
摘要:
Catalytic cracking catalysts and their use in catalytic cracking processes are disclosed. The instant catalytic cracking catalysts are useful for cracking a hydrocarbon feedstock to produce lower boiling hydrocarbons. The catalysts comprise an effective amount of at least one non-zeolitic molecular sieve characterized in its calcined form by an adsorption of isobutane of at least 2 percent by weight at a partial pressure of 500 torr and a temperature of 20.degree. C. The non-zeolitic molecular sieve is characterized as containing framework tetrahedral components of aluminum and phosphorus and at least one additional framework tetrahedral component, e.g., the non-zeolitic molecular sieve may be a silicoaluminophosphate as described in U.S. Pat. No. 4,440,871.
摘要:
Cracking catalysts and their use in cracking processes are disclosed. The cracking catalyst are prepared using mixtures of catalytic cracking catalysts containing zeolitic aluminosilicates effective in catalytic cracking and selected silicoaluminophosphate molecular sieves of U.S. Pat. No. 4,440,871.
摘要:
Hydrocracking processes are disclosed using novel catalysts comprising medium and large pore non-zeolitic molecular sieves selected from novel compositions such as the silicoaluminophosphates of U.S. Pat. No. 4,440,871, preferably in combination with traditional hydrocracking catalysts such as zeolitic aluminosilicates. The products of the instant processes are characterized by higher isoparaffin to n-paraffin ratios.
摘要:
A residual oil conversion process which comprises converting residual oils and regenerating the conversion catalyst wherein the catalyst is selected from LZ-210, LZ-210-M, LZ-210-T, LZ-210-A and mixtures thereof and is a zeolitic aluminosilicate which has a mole ratio of oxide in the dehydrated state of(0.85-1.1)M.sub.2/n O:Al.sub.2 O.sub.3 :x SiO.sub.2wherein M is a cation having a valence of "n", "x" is the number of moles of SiO.sub.2, said zeolitic aluminosilicate has a X-ray powder diffraction pattern having at least the d-spacings of Table A, and said zeolitic aluminosilicate has extraneous silicon atoms in the crystal lattice in the form of framework SiO.sub.4 tetrahedra.
摘要:
The process for the oligomerization of linear and/or branched chain C.sub.2 to C.sub.12 olefins with non-zeolitic molecular sieves having a framework structure of MO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedra and having an empirical chemical composition on an anhydrous basis expressed by the formulamR: (M.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the moles of "R" present per mole of (M.sub.x Al.sub.y P.sub.z)O.sub.2. "M" represents silicon, iron, titanium or at least one of magnesium, manganese, cobalt and zinc such being present in the form of a tetrahedral oxide; "x", "y" and "z" represent the mole fractions of "M", aluminum and phosphorous, respectively.