Patents by Inventor Christine N. Elia

Christine N. Elia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7928274
    Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: April 19, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent
  • Patent number: 7919421
    Abstract: A catalyst composition comprises a crystalline MCM-22 family molecular sieve and a binder, wherein the catalyst composition is characterized by an extra-molecular sieve porosity greater than or equal to 0.122 ml/g for pores having a pore diameter ranging from about 2 nm to about 8 nm, wherein the porosity is measured by N2 porosimetry. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent. The molecular sieve may have a Constraint Index of less than 12, e.g., less than 2. Examples of molecular sieve useful for this disclosure are a MCM-22 family molecular sieve, zeolite Y, and zeolite Beta.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: April 5, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Mohan Kalyanaraman, Christine N. Elia, Darryl D. Lacy, Jean W. Beeckman, Michael C. Clark
  • Publication number: 20110065972
    Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 17, 2011
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent
  • Publication number: 20110028772
    Abstract: A catalyst composition comprises a crystalline MCM-22 family molecular sieve and a binder, wherein the catalyst composition is characterized by an extra-molecular sieve porosity greater than or equal to 0.122 ml/g for pores having a pore diameter ranging from about 2 nm to about 8 nm, wherein the porosity is measured by N2 porosimetry. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent. The molecular sieve may have a Constraint Index of less than 12, e.g., less than 2.
    Type: Application
    Filed: October 18, 2010
    Publication date: February 3, 2011
    Inventors: Mohan Kalyanaraman, Christine N. Elia, Darryl D. Lacy, Jean W. Beeckman, Michael C. Clark
  • Patent number: 7858832
    Abstract: A process for producing sec-butylbenzene comprises contacting a feed comprising benzene and a C4 alkylating agent under alkylation conditions comprising a temperature of about 110° C. to about 150° C. with a catalyst comprising at least one molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom. The sec-butylbenzene can be then oxidized to produce a hydroperoxide and the hydroperoxide decomposed to produce phenol and methyl ethyl ketone.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: December 28, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jane C. Cheng, John S. Buchanan, Jon E. Stanat, Christine N. Elia, Jihad M. Dakka
  • Publication number: 20100304959
    Abstract: A catalyst composition comprises (a) a MCM-22 family molecular sieve; and (b) a binder, wherein the MCM-22 family molecular sieve is characterized by an average crystal agglomerate size of less than or equal to 16 microns. The catalyst composition may further have a second molecular sieve having a Constraint Index of less than 12, e.g., less than 2. Examples of molecular sieve useful for this disclosure are a MCM-22 family molecular sieve, zeolite Y, and zeolite Beta. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent.
    Type: Application
    Filed: April 26, 2010
    Publication date: December 2, 2010
    Inventors: Christine N. Elia, Frederick Y. Lo, Michael C. Clark, C. Morris Smith, Mohan Kalyanaraman
  • Publication number: 20100280298
    Abstract: The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g., a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g.
    Type: Application
    Filed: July 13, 2010
    Publication date: November 4, 2010
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Matthew J. Vincent
  • Patent number: 7816574
    Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: October 19, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent
  • Patent number: 7816573
    Abstract: The invention relates to a process for converting hydrocarbons with a catalyst comprising a crystalline molecular sieve composition which is obtainable by crystallizing a pre-formed extrudate mixture in a reactor and, during crystallization, removing excess alkali metal hydroxide from the pre-formed extrudate. The pre-formed extrudate mixture comprises at least one source of ions of tetravalent element Y, at least one source of alkali metal hydroxide, water, optionally at least one seed crystal, and optionally at least one source of ions of trivalent element X. The reaction mixture has the following mole composition: Y:X2=10 to infinity; OH?:Y=0.001 to 2; and M+:Y=0.001 to 2; wherein M is an alkali metal. The amount of water in the mixture is at least sufficient to permit extrusion of said reaction mixture.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: October 19, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Wenyih Frank Lai, Robert Ellis Kay, Christine N. Elia, Frederick Y. Lo, David O. Marler
  • Patent number: 7790940
    Abstract: The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g. a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g. MCM-49, or a mixture thereof.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: September 7, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Matthew J. Vincent
  • Publication number: 20100147747
    Abstract: A process for dewaxing a waxy component-containing hydrocarbon feedstock comprises contacting the feedstock under dewaxing conditions with a catalyst system comprising ZSM-48 and a molecular sieve of the MTT framework type.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 17, 2010
    Inventors: Christine N. Elia, Wenyih F. Lai
  • Publication number: 20100147741
    Abstract: A process is described of producing an MTT framework type molecular sieve by crystallizing a mixture capable of forming said molecular sieve, wherein the mixture comprises sources of alkali or alkaline earth metal (M), an oxide of trivalent element (X), an oxide of tetravalent element (Y), water and a directing agent (R) of the formula (CH3)3N+CH2CH2CH2N+(CH3)2CH2CH2CH2N+(CH3)3, and has a composition, in terms of mole ratios, within the following ranges. YO2/X2O3 less than 45 H2O/YO2 5 to 100 OH?/YO2 0.05 to 0.5 M/YO2 0.05 to 0.5 and R/YO2>0 to <0.5.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 17, 2010
    Inventors: Wenyih F. Lai, Christine N. Elia
  • Patent number: 7737313
    Abstract: A catalyst composition comprises (a) a MCM-22 family molecular sieve; and (b) a binder, wherein the MCM-22 family molecular sieve is characterized by an average crystal agglomerate size of less than or equal to 16 microns. The catalyst composition may further have a second molecular sieve having a Constraint Index of less than 12, e.g., less than 2. Examples of molecular sieve useful for this disclosure are a MCM-22 family molecular sieve, zeolite Y, and zeolite Beta. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: June 15, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christine N. Elia, Frederick Y. Lo, Michael C. Clark, C. Morris Smith, Michael Hryniszak, Mohan Kalyanaraman
  • Publication number: 20100075831
    Abstract: Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include at least two zeolites, including a zeolite with a low silica to alumina ratio. The catalysts may be combined with a low surface binder, or alternatively the catalysts as formulated may have a high ratio of zeolite surface area to external surface area.
    Type: Application
    Filed: December 18, 2008
    Publication date: March 25, 2010
    Inventors: Christine N. Elia, Mohan Kalyanaraman, Lei Zhang, Michel A. Daage, Darden Sinclair, Valery Sokolovskii, David M. Lowe, Jun Han, Nicholas Ohler, Daniel M. Giaquinta, Anthony F. Volpe, JR.
  • Publication number: 20100036184
    Abstract: This disclosure relates to a catalyst composition comprising (a) a crystalline MCM-49 molecular sieve; and (b) a binder comprising at least 1 wt. % of a titanium compound. In one aspect of this disclosure, the titanium compound comprises at least one of titanium oxide, titanium hydroxide, titanium sulfate, titanium phosphate, or any combination thereof. In another aspect of this disclosure, the catalyst composition further comprises a crystalline MCM-22 family molecular sieve comprising at least one of MCM-22, MCM-36, MCM-49, MCM-56, ITQ-1, ITQ-2, ITQ-30, PSH-3, ERB-1, SSZ-25, or any combination thereof. In other embodiments, this disclosure relates to a process for preparing the catalyst composition of this disclosure, the process comprises (a) providing the crystalline MCM-49 molecular sieve and the binder comprising at least 1 wt. % of a titanium compound to form a mixture; and (b) forming the mixture into the catalyst composition. In a preferred embodiment, the forming step comprises extruding.
    Type: Application
    Filed: December 20, 2007
    Publication date: February 11, 2010
    Inventors: Christine N. Elia, Frederick Y. Lo, Jeffrey T. Elks, Darryl D. Lacy, Mohan Kalyanaraman
  • Publication number: 20090312580
    Abstract: A process for producing sec-butylbenzene comprises contacting a feed comprising benzene and a C4 alkylating agent under alkylation conditions comprising a temperature of about 110° C. to about 150° C. with a catalyst comprising at least one molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom. The sec-butylbenzene can be then oxidized to produce a hydroperoxide and the hydroperoxide decomposed to produce phenol and methyl ethyl ketone.
    Type: Application
    Filed: February 8, 2007
    Publication date: December 17, 2009
    Inventors: Jane C. Cheng, John S. Buchanan, Jon E. Stanat, Christine N. Elia, Jihad M. Dakka
  • Publication number: 20090306446
    Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material having a ratio of surface area over surface volume ratio greater than about 79 cm?1, (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).
    Type: Application
    Filed: April 17, 2007
    Publication date: December 10, 2009
    Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
    Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Yun-Feng Chang
  • Publication number: 20090176643
    Abstract: Catalysts for dewaxing of hydrocarbon feeds, particularly feeds with elevated sulfur and nitrogen levels, are provided. The dewaxing catalysts include a zeolite with a low silica to alumina ratio combined with a low surface binder, or alternatively the formulated catalyst has a high ratio of zeolite surface area to external surface area.
    Type: Application
    Filed: December 18, 2008
    Publication date: July 9, 2009
    Inventors: Christine N. Elia, Mohan Kalyanaraman, Michel A. Daage, Stephen H. Brown, Lei Zhang, Robert A. Crane, Valery Sokolovskii, David M. Lowe, Jun Han, Nicholas Ohler, Daniel M. Giaquinta, Anthony F. Volpe, JR.
  • Patent number: 7553790
    Abstract: The present invention describes a method to increase the activity of a catalyst by first performing an ion exchange step with a potassium ion, followed by performing an ion-exchange step with an ammonium ion. Specifically, the present invention describes a method to increase the acidity of a zeolite by incorporating a potassium salt ion-exchange prior to an ammonium salt ion-exchange step. Even more specifically, the present invention is drawn to a method of increasing the activity of a zeolite by employing more than one potassium ion exchanges followed by at least one ammonium ion exchange. The present invention also describes a method to reduce the amount of sodium normally found in commercially produced zeolite by employing any of these methods. The present invention is also drawn to the catalysts produced by any of these methods.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: June 30, 2009
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jean W. Beeckman, Glenn R. Sweeten, Daria N. Lissy, David L. Stern, Stephen J. McCarthy, Dominick N. Mazzone, Christine N. Elia
  • Publication number: 20090076317
    Abstract: A process for producing ZSM-48 comprises crystallizing an aqueous reaction mixture comprising at least one source of silica, at least one source of alumina, at least one source of hydroxyl ions, at least one source of diquaternary alkylammonium, R2+, ions having the formula: (CH3)3N+(CH2)5N+(CH3)3 and optionally ZSM-48 seed crystals, wherein said reaction mixture has a composition including the following molar ratios: R2+:SiO2 less than 0.1 SiO2:Al2O3 less than 100 OH?:SiO2 less than 0.2.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 19, 2009
    Inventors: Wenyih Frank Lai, Wieslaw J. Roth, Robert E. Kay, Christine N. Elia