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:
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 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:
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:
A fluid catalytic cracking process comprising contacting a crude oil feedstock with a fluid catalytic cracking catalyst comprising a microporous crystalline multi-compositional, multiphase composite of SAPO-37 molecular sieve as a phase thereof in contiguous relationship with a different microporous faujasitic crystalline molecular sieve as another phase thereof.
摘要:
A fluid catalytic cracking (FCC) catalyst comprising a microporous crystalline multi-compositional, multiphase composite of SAPO-37 molecular sieve as a phase thereof in contiguous relationship with a different microporous faujasitic crystalline molecular sieve as another phase thereof. The invention encompasses processes for making the catalyst by hydrothermal crystallization and using the novel catalyst for fluid catalytic cracking (FCC) applications.