Patents Assigned to Mobil Oil Corp.
  • Method for separation of substances
    Patent number: 5378440
    Abstract: Methods for separation of substances are provided. The methods include contacting a mixture of at least two components in flowable conditions with mesoporous, crystalline materials termed M41S which also include MCM-41 materials. The mesoporous crystalline materials may be used in separations as is or functionalized.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: January 3, 1995
    Assignee: Mobil Oil Corp.
    Inventors: Joseph A. Herbst, Charles T. Kresge, David H. Olson, Kirk D. Schmitt, James C. Vartuli, Daniel I. C. Wang
  • Method for preparing catalysts comprising zeolites
    Patent number: 5378671
    Abstract: There is provided a method for preparing an alumina bound, zeolite catalyst, wherein a zeolite of low silanol content is used as the source of zeolite used to prepare the catalyst. A particular zeolite used in this catalyst is zeolite Y. This catalyst may be combined with at least one hydrogenation component and used to hydrocrack hydrocarbons, such as gas oils. In particular, an NiW/USY/alumina catalyst may be used in a hydrocracking reaction to produce distillate boiling range hydrocarbons from higher boiling hydrocarbons.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: January 3, 1995
    Assignee: Mobil Oil Corp.
    Inventors: Kathleen M. Keville, Hye K. C. Timken, Robert A. Ware
  • Shape selective hydrocarbon conversions over modified catalyst
    Patent number: 5371312
    Abstract: A process for shape selective hydrocarbon conversion involves contacting a hydrocarbon feedstream under conversion conditions with a catalytic molecular sieve which has been modified by treatment with an amino silane polymer while molecular sieve acid sites are protected. When the process is toluene disproportionation, a toluene feedstream may also contain a second silicon source which is a high pxylene selectivating agent. The invention also includes the modification method and the shape selective catalyst which results from the modification.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: December 6, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Rudolph M. Lago, David O. Marler, Sharon B. McCullen, David H. Olson
  • Process for preparing short chain alkyl aromatic compounds
    Patent number: 5371310
    Abstract: Relatively short chain alkyl aromatic compounds are prepared by alkylating or transalkylating an alkylatable aromatic compound with a relatively short chain alkylating or transalkylating agent under sufficient reaction conditions in the presence of catalyst comprising zeolite MCM-49.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: December 6, 1994
    Assignee: Mobil Oil Corp.
    Inventors: J. Michael Bennett, Clarence D. Chang, Jane C. Cheng, Stephen L. Lawton, Michael E. Leonowicz, Daria N. Lissy, Mae K. Rubin, C. Morris Smith, Dennis E. Walsh
  • Vacancy titanates intercalated with cationic hydroxy aluminum complexes
    Patent number: 5371309
    Abstract: There is provided a vacancy titanate intercalated with a cationic hydroxy aluminum complex, such as a Keggin ion. A method for making this material and a process for using this material as a catalyst are also provided.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: December 6, 1994
    Assignee: Mobil Oil Corp.
    Inventor: Ahmad Moini
  • Hydrocarbon conversion process employing a porous material
    Patent number: 5370785
    Abstract: There is provided a hydrocarbon conversion process and a process for sorbing a sorbate wherein said conversion and sorption process each comprises the use of a porous material. A process for preparing this material involves adding an amphiphilic compound to the reaction mixture for preparing a crystalline oxide. The amphiphilic compound may be a quaternary ammonium cationic surfactant. These surfactants may be in the form of lamellar liquid crystals, and may function as templates for the formation of the present mesoporous oxide materials.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: December 6, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Jeffrey S. Beck, Charles T. Kresge, Sharon B. McCullen, Wieslaw J. Roth, James C. Vartuli
  • Catalyst and catalytic conversion therewith
    Patent number: 5366948
    Abstract: A catalyst composition is provided which comprises a large-pore molecular sieve component and an additive catalyst component, said additive catalyst component having been formulated in a special way to provide an improved catalyst and conversion process. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline, and increased lower olefins, especially propylene and butylene.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: November 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Robert P. L. Absil, Jocelyn A. Kowalski
  • Selective toluene disproportionation process (STDP) with ex situ selectivated zeolite catalyst
    Patent number: 5367099
    Abstract: A process for shape selective hydrocarbon conversion that involves contacting a hydrocarbon feedsteam, including toluene, under conversion conditions with a catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation sequences, each sequence comprising an impregnation with a silicon compound followed by calcination. The modified catalyst used in the process may also be steamed. Optionally, the modified catalyst may be trim-selectivated.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: November 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Jeffrey S. Beck, David H. Olson, Sharon B. McCullen
  • Supported heteropoly acid catalysts
    Patent number: 5366945
    Abstract: There is provided a catalyst comprising a heteropoly acid, such as phosphotungstic acid, supported on a mesoporous crystalline material, such as M41S. A particular form of this M41S support is designated as MCM-41. There is also provided a method for preparing this catalyst by impregnating the heteropoly acid on the support. There is also provided a process for using this catalyst to catalyze acid catalyzed reactions, such as the isomerization of paraffins and the alkylation of aromatics.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: November 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, David O. Marler, Gayatri S. Rav, Brenda H. Rose
  • Shape selective conversion of hydrocarbons over extrusion-modified molecular sieve
    Patent number: 5365003
    Abstract: A process for a shape selective hydrocarbon conversion such as toluene disproportionation, involves contacting a reaction stream under conversion conditions with a catalytic molecular sieve which has been preselectivated by agglomerating with an organosilicon compound. The invention also includes a method for agglomeration-preselectivation and the shape selective catalyst which results from the agglomeration preselectivation.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: November 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Clarence D. Chang, Cynthia T.-W. Chu, Thomas F. Degnan, Paul G. Rodewald, David S. Shihabi
  • Sensor device containing mesoporous crystalline material
    Patent number: 5364797
    Abstract: A sensor device includes ultra-large pore crystalline material M41S as a selective detecting element, and a measuring element for quantifying physical, chemical or biological events which occur within the crystalline material. The crystalline material may also contain an additional selective detecting component within its pores.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: November 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: David H. Olson, Galen D. Stucky, James C. Vartuli
  • Organic conversion with a catalyst comprising a crystalline pillared oxide material
    Patent number: 5364999
    Abstract: There is provided a process for converting organic compounds using a catalyst comprising a pillared, layered crystalline oxide material. This material may be prepared by intercepting a swellable layered oxide before calcination. The intercepted material is swollen and pillared. If the material is not intercepted in this manner, it is transformed into a zeolite by calcination. The pillared material may have a large degree of catalytic activity, and it may have rather porous layers.
    Type: Grant
    Filed: March 9, 1993
    Date of Patent: November 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth, Kenneth G. Simmons, James C. Vartuli
  • Organic conversion with a catalyst comprising a crystalline pillard oxide material
    Patent number: 5365000
    Abstract: There is provided a process for converting organic compounds using a catalyst comprising a pillared, layered crystalline oxide material with a characteristic X-ray diffraction pattern. This layered material is designated MCM-39. This layered material may be swollen, and the swollen material may be pillared.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: November 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth
  • Selective toluene disproportionation process (STDP) with ex situ selectivated zeolite catalysts
    Patent number: 5365004
    Abstract: A process for shape selective hydrocarbon conversion that involves contacting a hydrocarbon feedsteam, including toluene, under conversion conditions with a catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation sequences, each sequence comprising an impregnation with a silicon compound followed by calcination. The modified catalyst used in the process may also be steamed. Optionally, the modified catalyst may be trim-selectivated.
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: November 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Jeffrey S. Beck, Sharon B. McCullen, David H. Olson
  • Inorganic molecular sieves encapsulating chelates
    Patent number: 5362695
    Abstract: A crystalline molecular sieve is synthesized as encapsulating chelating agents which are macrocyclic organic molecules containing from about 8 to about 18 members in cyclic configuration with at least one bicyclic bridge having from about 3 to about 10 members, the molecule members being carbon, nitrogen, oxygen, sulfur, selenium, phosphorus and/or arsenic. The molecules contain at least two nitrogen members and at least one member is oxygen, sulfur, selenium, phosphorus, and/or arsenic, and the members include sufficient bonds to contiguous members or to hydrogen to form stable molecules. The macrocycles may be complexed with metal ions and the molecular sieve may be used in catalysis and medical imaging.
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: November 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Jeffrey S. Beck, Ralph M. Dessau, John B. Higgins
  • Synthetic layered MCM-56, its synthesis and use
    Patent number: 5362697
    Abstract: This invention relates to a new synthetic layered material, a method for its preparation and use thereof as a sorbent and as a catalyst component in catalytic conversion of organic compounds.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: November 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Anthony S. Fung, Stephen L. Lawton, Wieslaw J. Roth
  • Synthesis of crystalline ZSM-18
    Patent number: 5350570
    Abstract: This invention relates to a new form of crystalline material identified as having the structure of ZSM-18, to a new and useful method for synthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound, e.g., hydrocarbon compound, conversion.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: September 27, 1994
    Assignee: Mobil Oil Corp.
    Inventor: Kirk D. Schmitt
  • Catalytic conversion with improved catalyst
    Patent number: 5348643
    Abstract: A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises clay and a zeolite component, at least one of which has been treated with a phosphorus-containing compound, for example, ammonium dihydrogen phosphate or phosphoric acid, and which is spray dried at a low pH, preferably lower than about 3. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline and increased lower olefins, especially propylene and butylene.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: September 20, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Robert P. L. Absil, Joseph A. Herbst
  • Process for sorption separation
    Patent number: 5349117
    Abstract: A process for separating at least one component from a mixture of components which comprises contacting the mixture with a sorbent structure comprising a film of interconnected zeolite crystals bonded to a substrate, said sorbent structure being characterized by a value r representing the mg of zeolite/cm.sup.2 of substrate surface and a value e representing the coating efficiency as mg of bonded zeolite/mg of YO.sub.2 initially in the synthesis mixture, wherein r is at least 0.5 and e is at least 0.05.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: September 20, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Robert K. Grasselli, Rudolph M. Lago, Richard F. Socha, John G. Tsikoyiannis
  • Shape selective hydrocarbon conversions over modified catalyst
    Patent number: 5349114
    Abstract: A process for shape selective hydrocarbon conversion involves contacting a hydrocarbon feedsteam under conversion conditions with a modified catalytic molecular sieve which has been modified by being pre-selectivated with a first silicon source, then steamed. The feedstream may also contain a second silicon source which is a high efficiency para-xylene selectivating agent. The method for modifying the molecular sieve is also described.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: September 20, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Rudolph M. Lago, David O. Marler, Sharon B. McCullen