Patents by Inventor Anna Tonkovich

Anna Tonkovich 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).

  • Publication number: 20080031788
    Abstract: This invention relates to a process for converting a hydrocarbon reactant to a product comprising an oxygenate or a nitrile, the process comprising: (A) flowing a reactant composition comprising the hydrocarbon reactant, and oxygen or a source of oxygen, and optionally ammonia, through a microchannel reactor in contact with a catalyst to convert the hydrocarbon reactant to the product, the hydrocarbon reactant undergoing an exothermic reaction in the microchannel reactor; (B) transferring heat from the microchannel reactor to a heat exchanger during step (A); and (C) quenching the product from step (A).
    Type: Application
    Filed: August 10, 2007
    Publication date: February 7, 2008
    Inventors: John Brophy, Frederick Pesa, Anna Tonkovich, Jeffrey McDaniel, Kai Jarosch
  • Publication number: 20080025884
    Abstract: Integrated Combustion Reactors (ICRs) and methods of making ICRs are described in which combustion chambers (or channels) are in direct thermal contact to reaction chambers for an endothermic reaction. Particular reactor designs are also described. Processes of conducting reactions in integrated combustion reactors are described and results presented. Some of these processes are characterized by unexpected and superior results, and/or results that can not be achieved with any prior art devices.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 31, 2008
    Inventors: Anna Tonkovich, Gary Roberts, Sean Fitzgerald, Paul Neagle, Dongming Qiu, Matthew Schmidt, Steven Perry, David Hesse, Robert Luzenski, G. Chadwell, Ying Peng, James Mathias, Nathan Gano, Richard Long, Wm. Rogers, Ravi Arora, Wayne Simmons, Barry Yang, David Kuhlmann, Yong Wang, Thomas Yuschak, Thomas Forte, John Monahan, Robert Jetter
  • Publication number: 20070298486
    Abstract: The invention described herein concerns microchannel apparatus that contains, within the same device, at least one manifold and multiple connecting microchannels that connect with the manifold. For superior heat or mass flux in the device, the volume of the connecting microchannels should exceed the volume of manifold or manifolds. Methods of conducting unit operations in microchannel devices having simultaneous disrupted and non-disrupted flow through microchannels is also described.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 27, 2007
    Applicant: Velocys Inc.
    Inventors: Ravi Arora, Anna Tonkovich, Dongming Qiu, Laura Silva
  • Publication number: 20070246106
    Abstract: The invention describes features that can be used to control flow to an array of microchannels. The invention also describes methods in which a process stream is distributed to plural microchannels.
    Type: Application
    Filed: April 20, 2007
    Publication date: October 25, 2007
    Applicant: Velocys Inc.
    Inventors: Anna Tonkovich, Ravi Arora, David Kilanowski
  • Publication number: 20070225532
    Abstract: The disclosed invention relates to a process for converting ethylbenzene to styrene, comprising: flowing a feed composition comprising ethylbenzene in at least one process microchannel in contact with at least one catalyst to dehydrogenate the ethylbenzene and form a product comprising styrene; exchanging heat between the process microchannel and at least one heat exchange channel in thermal contact with the process microchannel; and removing product from the process microchannel. Also disclosed is an apparatus comprising a process microchannel, a heat exchange channel, and a heat transfer wall positioned between the process microchannel and heat exchange channel wherein the heat transfer wall comprises a thermal resistance layer.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 27, 2007
    Inventors: Anna Tonkovich, Kai Paul Jarosch, Bin Yang, Francis Daly, Thomas Hickey, Jeffrey Marco
  • Publication number: 20070140955
    Abstract: This invention relates to an apparatus, comprising: at least one process microchannel having a height, width and length, the height being up to about 10 mm, the process microchannel having a base wall extending in one direction along the width of the process microchannel and in another direction along the length of the process microchannel; at least one fin projecting into the process microchannel from the base wall and extending along at least part of the length of the process microchannel; and a catalyst or sorption medium supported by the fin.
    Type: Application
    Filed: December 28, 2006
    Publication date: June 21, 2007
    Inventors: Anna Tonkovich, Dongming Qiu, Richard Long, Barry Yang, Thomas Yuschak, Steven Perry
  • Publication number: 20070085227
    Abstract: The disclosed technology relates to a process for contacting a liquid phase and a second fluid phase, comprising: flowing the liquid phase and/or second fluid phase in a process microchannel in contact with surface features in the process microchannel, the contacting of the surface features with the liquid phase and/or second fluid phase imparting a disruptive flow to the liquid phase and/or second fluid phase; contacting the liquid phase with the second fluid phase in the process microchannel; and transferring mass from the liquid phase to the second fluid phase and/or from the second fluid phase to the liquid phase.
    Type: Application
    Filed: July 7, 2006
    Publication date: April 19, 2007
    Inventors: Anna Tonkovich, Maddalena Fanelli, Ravi Arora, Timothy Sullivan, Steven Perry, David Kuhlmann
  • Publication number: 20070017633
    Abstract: This invention relates to microchannel apparatus that includes microchannels with interior surface features for modifying flow; processes utilizing this microchannel architecture, and methods of making apparatus having these features.
    Type: Application
    Filed: March 23, 2006
    Publication date: January 25, 2007
    Inventors: Anna Tonkovich, Bin Yang, Steven Perry, Sean Fitzgerald, Ravi Arora, Kai Jarosch, Thomas Yuschak, Maddalena Fanelli, Tim Sullivan, Terry Masanec
  • Publication number: 20070004810
    Abstract: The disclosed invention relates to a novel cobalt catalyst and to a process for converting a reactant composition comprising H2 and CO to a product comprising at least one aliphatic hydrocarbon having at least about 5 carbon atoms in a reactor using the catalyst. The process can be conducted in any reactor and is particularly suitable for microchannel reactors.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Inventors: Yong Wang, Chunshe Cao, Rachid Taha, Rick Watson, David VanderWiel, Anna Tonkovich, Kai Jarosch
  • Publication number: 20060275185
    Abstract: The invention provides apparatuses and techniques for controlling flow between a manifold and two or more connecting microchannels. Flow between plural connecting microchannels, that share a common manifold, can be made more uniform by the use of flow straighteners and distributors that equalize flow in connecting channels. Alternatively, flow can be made more uniform by sections of narrowed diameter within the channels. Methods of making apparatus and methods of conducting unit operations in connecting channels are also described.
    Type: Application
    Filed: April 7, 2006
    Publication date: December 7, 2006
    Inventors: Anna Tonkovich, Bin Yang, Steven Perry, Sean Fitzgerald, Ravi Arora, Robert Luzenski, Thomas Yuschak
  • Publication number: 20060249020
    Abstract: The disclosed invention relates to a process and apparatus for separating a first fluid from a fluid mixture comprising the first fluid. The process comprises: (A) flowing the fluid mixture into a microchannel separator in contact with a sorption medium, the fluid mixture being maintained in the microchannel separator until at least part of the first fluid is sorbed by the sorption medium, removing non-sorbed parts of the fluid mixture from the microchannel separator; and (B) desorbing first fluid from the sorption medium and removing desorbed first fluid from the microchannel separator. The process and apparatus are suitable for separating nitrogen or methane from a fluid mixture comprising nitrogen and methane. The process and apparatus may be used for rejecting nitrogen in the upgrading of sub-quality methane.
    Type: Application
    Filed: March 2, 2006
    Publication date: November 9, 2006
    Inventors: Anna Tonkovich, Steven Perry, Ravi Arora, Dongming Qiu, Micheal Lamont, Deanna Burwell, Terence Dritz, Jeffrey McDaniel, William Rogers, Laura Silva, Daniel Weidert, Wayne Simmons, G. Chadwell
  • Publication number: 20060251552
    Abstract: The disclosed invention relates to a process for converting a reactant composition comprising H2 and CO to a product comprising at least one aliphatic hydrocarbon having at least about 5 carbon atoms, the process comprising: flowing the reactant composition through a microchannel reactor in contact with a Fischer-Tropsch catalyst to convert the reactant composition to the product, the microchannel reactor comprising a plurality of process microchannels containing the catalyst; transferring heat from the process microchannels to a heat exchanger; and removing the product from the microchannel reactor; the process producing at least about 0.5 gram of aliphatic hydrocarbon having at least about 5 carbon atoms per gram of catalyst per hour; the selectivity to methane in the product being less than about 25%. The disclosed invention also relates to a supported catalyst comprising Co, and a microchannel reactor comprising at least one process microchannel and at least one adjacent heat exchange zone.
    Type: Application
    Filed: July 11, 2006
    Publication date: November 9, 2006
    Inventors: Yong Wang, Anna Tonkovich, Terry Mazanec, Francis Daly, Dave VanderWiel, Jianli Hu, Chunshe Cao, Charles Kibby, Xiaohong Li, Michael Briscoe, Nathan Gano, Ya-Huei Chin
  • Publication number: 20060153751
    Abstract: Integrated Combustion Reactors (ICRs) and methods of making ICRs are described in which combustion chambers (or channels) are in direct thermal contact to reaction chambers for an endothermic reaction. Superior results were achieved for combustion chambers which contained a gap for flee flow through the chamber. Particular reactor designs are also described. Processes of conducting reactions in integrated combustion reactors are described and results presented. Some of these processes are characterized by unexpected and superior results.
    Type: Application
    Filed: September 21, 2005
    Publication date: July 13, 2006
    Inventors: Anna Tonkovich, Gary Roberts, Steven Perry, Sean Fitzgerald
  • Publication number: 20060148910
    Abstract: The present invention includes a catalyst structure and method of making the catalyst structure for Fischer-Tropsch synthesis that both rely upon the catalyst structure having a first porous structure with a first pore surface area and a first pore size of at least about 0.1 ?m, preferably from about 10 ?m to about 300 ?m. A porous interfacial layer with a second pore surface area and a second pore size less than the first pore size is placed upon the first pore surface area. Finally, a Fischer-Tropsch catalyst selected from the group consisting of cobalt, ruthenium, iron and combinations thereof is placed upon the second pore surface area. Further improvement is achieved by using a microchannel reactor wherein the reaction chamber walls define a microchannel with the catalyst structure placed therein through which pass reactants. The walls may separate the reaction chamber from at least one cooling chamber. The present invention also includes a method of Fischer-Tropsch synthesis.
    Type: Application
    Filed: February 27, 2006
    Publication date: July 6, 2006
    Inventors: Yong Wang, David Vanderwiel, Anna Tonkovich, Yufei Gao, Eddie Baker
  • Publication number: 20060142401
    Abstract: The invention provides methods, apparatus and systems in which there is partial boiling of a liquid in a mini-channel or microchannel. The partial boiling removes heat from an exothermic process.
    Type: Application
    Filed: November 3, 2005
    Publication date: June 29, 2006
    Inventors: Anna Tonkovich, David Hesse, Sean Fitzgerald, Bin Yang, Ravi Arora, Laura Silva, G. Chadwell, Kai Jarosch, Dongming Qiu
  • Publication number: 20060129015
    Abstract: The disclosed invention relates to a process, comprising: flowing a first reactant feed stream comprising a reactant substrate and a second reactant feed stream comprising an alkylating agent, an acylating agent or a mixture thereof, in a process microchannel in contact with each other to form a product comprising at least one alkylation product, at least one acylation product, or a mixture thereof; transferring heat from the process microchannel to a heat sink; and removing the product from the process microchannel.
    Type: Application
    Filed: November 11, 2005
    Publication date: June 15, 2006
    Inventors: Anna Tonkovich, Steven Perry, Timothy LaPlante, Kai Jarosch, Thomas Hickey, Sean Fitzgerald, Dongming Qiu, Ravi Arora, Timothy Sullivan, Paul Neagle
  • Publication number: 20060120213
    Abstract: The disclosed invention relates to a process for treating or making an emulsion in a microchannel. The emulsion comprises a first liquid and a second liquid, the first liquid forming a continuous phase, the second liquid forming droplets dispersed in the continuous phase.
    Type: Application
    Filed: November 17, 2005
    Publication date: June 8, 2006
    Inventors: Anna Tonkovich, Jennifer Freeman, Bin Yang, Laura Silva, Richard Long, Paul Neagle, Barry Yang, Thomas Yuschak, Eric Daymo, Dongming Qiu, Kristina Pagnotto, Michael Marchiando, Amanda Glass, David Kuhlmann, Jeffrey Marco, Harley Freeman, William Rogers
  • Publication number: 20060116528
    Abstract: The invention provides methods, apparatus and chemical systems for making vinyl acetate from ethylene, oxygen, and acetic acid.
    Type: Application
    Filed: October 20, 2005
    Publication date: June 1, 2006
    Inventors: Terry Mazanec, Victor Johnston, Michael Huckman, Sean Fitzgerald, James Foster, Daniel Lindley, Anna Tonkovich, Francis Daly, Leslie Wade, Tony Hammock, Thomas Yuschak, Bin Yang, Kai Jarosch
  • Publication number: 20060108397
    Abstract: Novel methods of making laminated, microchannel devices are described. Examples include: assembly from thin strips rather than sheets; and hot isostatic pressing (HIPing) to form devices with a hermetically sealed wall. Laminated microchannel articles having novel features are also described. The invention includes processes conducted using any of the articles described.
    Type: Application
    Filed: October 24, 2005
    Publication date: May 25, 2006
    Inventors: Anna Tonkovich, Gary Roberts, Sean Fitzgerald, Timothy Werner, Matthew Schmidt, Robert Luzenski, G. Chadwell, James Mathias, Abhishek Gupta, David Kuhlmann, Thomas Yuschak
  • Publication number: 20060102519
    Abstract: The disclosed invention relates to a process for conducting a multiphase reaction in a microchannel. The process comprises: forming a multiphase reaction mixture comprising a first reactant and a second reactant; the first reactant comprising at least one liquid; the second reactant comprising at least one gas, at least one liquid, or a combination of at least one gas and at least one liquid; the first reactant forming a continuous phase in the multiphase reaction mixture; the second reactant forming gas bubbles and/or liquid droplets dispersed in the continuous phase; and reacting the first reactant with the second reactant in a process microchannel in the presence of at least one catalyst to form at least one product.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 18, 2006
    Inventors: Anna Tonkovich, David Hesse, Paul Neagle, Micheal Lamont, Francis Daly, Kai Paul Jarosch, Richard Stevenson, Laura Silva