Patents Represented by Attorney Edward F. Kenehan, Jr.
  • Patent number: 5334368
    Abstract: There is provided a method for synthesizing a new synthetic composition of ultra-large pore crystalline material which can be used as a sorbent or catalyst component for conversion of organic and inorganic compounds. The crystalline material product of this method exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C. This material may have a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units. The reaction mixture for preparing this material is prepared by forming a solution containing a source of an oxide, followed by adding a gelling reagent to this solution to form a gel.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: August 2, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Jeffrey S. Beck, Kirk D. Schmitt, James C. Vartuli
  • Patent number: 5334367
    Abstract: This invention relates to a new synthetic porous zeolite, characterize as ZSM-45, a method for its preparation and use thereof in catalytic conversion of organic compounds. This crystalline material may have a ratio of XO.sub.2 :Y.sub.2 O.sub.3 of at least 8, wherein X represents silicon and/or germanium and Y represents aluminum, boron, chromium, iron and/or gallium. When X is silicon and Y is aluminum, the new, synthetic zeolite is analogous, in some respects, to the naturally occuring zeolite, levynite. The silica/alumina form of this new crystalline material has a silica to alumina ratio of at least 8 and may be prepared with directing agents which are 2-(hydroxyalkyl) trialkylammonium compounds, dimethyldiethylammonium compounds or cobalticinium compounds. The new crystalline material exhibits a characteristic X-ray diffraction pattern.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: August 2, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Edward J. Rosinski, Mae K. Rubin
  • Patent number: 5334795
    Abstract: Ethylbenzene is produced by the alkylation of benzene with ethylene in the presence of an alkylation catalyst having a particular structure defined by its X-ray diffraction pattern. A preferred catalyst is the zeolite MCM-22. The process is typically carried out at a temperature of 300.degree. to 1000.degree. F. but the catalyst provides sufficient activity for the reaction to be carried out at temperatures below 700.degree. F. Liquid phase operation is preferred, giving a lower yield of polyethylated products. The use of the selected catalyst also results in a reduction of the xylene impurity level to values below 500 ppm in the product.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: August 2, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Pochen Chu, Michael E. Landis, Quang N. Le
  • Patent number: 5326922
    Abstract: The transfer of hydrogen from a paraffin to an olefin is carried out in the presence of, as catalyst, MCM-36. Especially when the paraffin reactant is an isoparaffin, the olefin produced from the reacted isoparaffin may react with unreacted isoparaffin to also produce an alkylate product.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: July 5, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Albin Huss, Jr., Quang N. Le, Robert T. Thomson
  • Patent number: 5324881
    Abstract: The alkylation of isoparaffin with olefin to provide alkylate is carried out in the presence of, as catalyst, a supported heteropoly acid. The support may be MCM-41, and the heteropoly acid may be dodecawolframophosphoric acid (i.e., phosphotungstic acid, i.e., H.sub.3 PW.sub.12 O.sub.40).
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: June 28, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, David O. Marler, Gayatri S. Rav, Brenda H. Rose
  • Patent number: 5321183
    Abstract: Processes for converting a wide variety of aromatic hydrocarbons, such as polyalkylaromatics, into commercially useful para-substituted aromatics such as para-xylene are disclosed. The aromatic hydrocarbon feed stream is first partially converted into toluene which is then subjected to a highly para-selective methylation process. The present invention therefore provides novel processes and catalysts for increasing the para-selectivity in the selective production of para-substituted aromatic compounds. From the description provided herein, those skilled in the art will appreciate that the catalysts and processes of the present invention provide greater para-selectivity at conversion rates unattained by previously known methods.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: June 14, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Clarence D. Chang, Paul G. Rodewald
  • Patent number: 5321190
    Abstract: There is provided a catalyst comprising nickel supported on a pillared (e.g., silica pillared) vacancy titanate material. There is also provided a method for preparing this catalyst. This method may involve impregnating a pillared vacancy titanate material with a nickel nitrate solution. There is further provided a process for oligomerizing ethylene using this catalyst.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: June 14, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Brent A. Aufdembrink, Margaret M. Wu
  • Patent number: 5310715
    Abstract: There is provided a method for preparing a pillared layered material, designated MCM-36, with a characteristic X-ray diffraction pattern. Upon calcination of the swollen, non-pillared form of this material, the layers collapse and condense upon one another in a somewhat disordered fashion to form a non-swellable material. However, when the swollen layered material is intercalated with polymeric oxide pillars, the layer separation is maintained, even after calcination. A quaternary ammonium silicate, such as tetramethylammonium silicate, is used as a pillaring agent for treating the swollen material.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: May 10, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth
  • Patent number: 5308602
    Abstract: There is provided a method for preparing crystalline ultra-large pore oxide materials. The materials are formed from reaction mixtures comprising an amphiphilic compound, such as a cetyltrimethylammonium compound, a source of at least one oxide, such as silica, and water. The concentration of amphiphilic compounds in these reaction mixtures is rather low. The addition of an inorganic salt, such as sodium bromide, to the reaction mixture may result in the increased thermal stability of the as-synthesized form of the crystalline material and may also alter the crystalline phase of the product.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: May 3, 1994
    Assignee: Mobil Oil Corp.
    Inventors: David C. Calabro, John Hen
  • Patent number: 5304363
    Abstract: There is provided 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: July 2, 1992
    Date of Patent: April 19, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Jeffrey S. Beck, Charles T. Kresge, Sharon B. McCullen, Wieslaw J. Roth, James C. Vartuli
  • Patent number: 5296428
    Abstract: There is provided a catalyst comprising MCM-36 and a hydrogenation/dehydrogenation component. A particular example of such a catalyst comprises MCM-36, nickel and tungsten.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: March 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Thomas F. Degnan, Kathleen M. Keville, Charles T. Kresge, David O. Marler, Brenda H. Rose, Wieslaw J. Roth, Kenneth G. Simons, deceased, Hye K. C. Timken, James C. Vartuli
  • Patent number: 5294330
    Abstract: There is provided a hydrocracking process with a catalyst comprising MCM-36.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: March 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Thomas F. Degnan, Kathleen M. Keville, Charles T. Kresge, David O. Marler, Brenda H. Rose, Wieslaw J. Roth, Hye Kyung C. Timken
  • Patent number: 5292698
    Abstract: There is provided a catalyst comprising MCM-36 and a binder material.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: March 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Cynthia T-W. Chu, Charles T. Kresge, Wieslaw J. Roth, Kenneth G. Simmons, deceased, James C. Vartuli
  • Patent number: 5288475
    Abstract: This invention relates to a method for synthesizing ZSM-35 using a 1,4-dimethylpiperazine directing agent.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: February 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Clarence D. Chang, Stuart D. Hellring
  • Patent number: 5288927
    Abstract: There is provided a process for reacting phenol with butene or butanol over fairly large-pore zeolites to give butylphenol with high para-selectivity. Particular zeolites for use in this reaction include ZSM-12 and zeolite beta. A particular butene or butanol reactant is isobutanol. The product of this reaction may have a high content of the mono-alkylated, tert-butyl product.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: February 22, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Clarence D. Chang, Stuart D. Hellring
  • Patent number: 5284643
    Abstract: There is provided a gallium-containing MCM-22 zeolite. There are also provided methods for making this zeolite and processes for using this zeolite as a catalyst for the conversion of organic molecules. Particular conversions are reforming and the dehydrogenation of methylcyclohexane to form toluene.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Roger A. Morrison, Mae K. Rubin
  • Patent number: 5284577
    Abstract: There is provided a catalyst comprising at least one hydrogenation metal, such as Ni and Mo, supported on a delaminated layered silicate, such as kenyaite, which has been swollen and calcined. There is also provided a method for making this catalyst. There is further provided a process for using this catalyst to demetalize a petroleum feedstock, such as a gas oil.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: February 8, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Stuart S. Shih, James C. Vartuli
  • Patent number: 5283043
    Abstract: There is provided a method for preparing organic-swelled layered silicate by direct crystallization from an alkaline reaction mixture containing a source of silicon oxide and organic onium compound, e.g., a cetyltrimethylammonium salt. Layered silicates containing interlayer polymeric chalcogenide are prepared by contacting the organic-swelled layered silicate with a source of polymeric chalcogenide, e.g., tetraethylorthosilicate.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: February 1, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Ivy D. Johnson, Michael E. Landis
  • Patent number: 5278115
    Abstract: There is provided a method for preparing a pillared layered material, designated MCM-36, with a characteristic X-ray diffraction pattern. Upon calcination of the swollen, non-pillared form of this material, the layers collapse and condense upon one another in a somewhat disordered fashion to form a non-swellable material. However, when the swollen layered material is intercalated with polymeric oxide pillars, the layer separation is maintained, even after calcination. A combination of tetraethylorthosilicate and zirconium alkoxide is used as a pillaring agent for treating the swollen material.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: January 11, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth
  • Patent number: 5278116
    Abstract: There is provided a method for preparing a pillared layered material, designated MCM-36, with a characteristic X-ray diffraction pattern. Upon calcination of the swollen, non-pillared form of this material, the layers collapse and condense upon one another in a somewhat disordered fashion to form a non-swellable material. However, when the swollen layered material is intercalated with polymeric oxide pillars, the layer separation is maintained, even after calcination. Cerium-containing aluminum phosphate gel particles are used to pillar the layered material.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: January 11, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, Wieslaw J. Roth