Patents by Inventor Ravi Arora

Ravi Arora 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: 8869830
    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: Grant
    Filed: November 23, 2011
    Date of Patent: October 28, 2014
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Ravi Arora, David Kilanowski
  • Publication number: 20140291204
    Abstract: This invention relates to a process for conducting a hydrocracking or a hydrotreating process in a microchannel reactor. This invention also relates to a process and apparatus for flowing a vapor and liquid into a plurality of microchannels in a microchannel processing unit.
    Type: Application
    Filed: May 28, 2014
    Publication date: October 2, 2014
    Applicant: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Ravi Arora, John Brophy, Francis P. Daly, Soumitra Deshmukh, Maddalena Fanelli, Kai Tod Paul Jarosch, Timothy J. LaPlante, Richard Q. Long, Terry Mazanec, Daniel Francis Ryan, Laura J. Silva, Wayne W. Simmons, Bruce Strangeland, Yong Wang, Thomas Yuschak, Steven T. Perry, Jeffrey Dale Marco, Michael Alan Marchiando, Robert Lewis Litt
  • Publication number: 20140264175
    Abstract: This invention relates to a process and an apparatus for conducting simultaneous endothermic and exothermic reactions in a microchannel reactor. A start-up procedure for the microchannel reactor is disclosed.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: VELOCYS, INC.
    Inventors: Steven T. Perry, Ravi Arora, Martyn Twigg, Bin Yang, Thomas Yuschak, Kai Tod Paul Jarosch, Eric Hans Drescher, Franck Letellier, Anders Gabrielsson
  • Publication number: 20140246625
    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: February 25, 2013
    Publication date: September 4, 2014
    Applicant: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Gary Roberts, Sean P. Fitzgerald, Paul W. Neagle, Dongming Qiu, Matthew B. Schmidt, Steven T. Perry, David J. Hesse, Robert J. Luzenski, G. Bradley Chadwell, Ying Peng, James A. Mathias, Nathan P. Gano, Richard Q. Long, Wm. Allen Rogers, Ravi Arora, Wayne W. Simmons, Barry L. Yang, David J. Kuhlmann, Yong Wang, Thomas D. Yuschak, Thomas Forte, John Arthur Monahan, Robert Jetter
  • Patent number: 8802039
    Abstract: Novel designs for microchannel apparatus are described in which microchannels are shaped to reduce the amount of material needed to build an apparatus. In these designs, some microchannels are shaped, in cross-section, to provide relatively more structural material in areas of greatest stress, while leaving greater area for unit operations in areas of the apparatus that are subjected to relatively less stress.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 12, 2014
    Assignee: Velocys, Inc.
    Inventors: Paul W. Neagle, Anna Lee Tonkovich, Soumitra Deshmukh, Ravi Arora
  • Patent number: 8747656
    Abstract: This invention relates to a process for conducting a hydrocracking or a hydrotreating process in a microchannel reactor. This invention also relates to a process and apparatus for flowing a vapor and liquid into a plurality of microchannels in a microchannel processing unit.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: June 10, 2014
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Ravi Arora, John Brophy, Francis P. Daly, Soumitra Deshmukh, Maddalena Fanelli, Kai Tod Paul Jarosch, Timothy J. LaPlante, Richard Q. Long, Terry Mazanec, Daniel Francis Ryan, Laura J. Silva, Wayne W. Simmons, Bruce Stangeland, Yong Wang, Thomas Yuschak, Steven T. Perry, Jeffrey Dale Marco, Michael Alan Marchiando, Robert Dwayne Litt
  • Patent number: 8721974
    Abstract: The disclosed invention relates to a process, comprising: conducting unit operations in at least two process zones in a process microchannel to treat and/or form a non-Newtonian fluid, a different unit operation being conducted in each process zone; and applying an effective amount of shear stress to the non-Newtonian fluid to reduce the viscosity of the non-Newtonian fluid in each process zone, the average shear rate in one process zone differing from the average shear rate in another process zone by a factor of at least about 1.2.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: May 13, 2014
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Ravi Arora, David Kilanowski, Eric Daymo
  • Patent number: 8492164
    Abstract: Novel manifolds and methods of flow through manifolds are described. Apparatus and techniques are described in which flow from a relatively large volume header is equally distributed to process channels. Methods of making laminated, microchannel devices are also described.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: July 23, 2013
    Assignee: Velocys, Inc.
    Inventors: Sean P. Fitzgerald, Anna Lee Tonkovich, Ravi Arora, Matthew B. Schmidt, Dongming Qiu, Thomas D. Yuschak, Laura J. Silva, William Allen Rogers, Kai Jarosch
  • Publication number: 20130165536
    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: August 27, 2012
    Publication date: June 27, 2013
    Inventors: Anna Lee Tonkovich, David J. Hesse, Sean P. Fitzgerald, Bin Yang, Ravi Arora, Laura J. Silva, G. Bradley Chadwell, Kai Jarosch, Dongming Qiu
  • Patent number: 8383054
    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: Grant
    Filed: April 25, 2011
    Date of Patent: February 26, 2013
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Gary Roberts, Sean P. Fitzgerald, Paul W. Neagle, Dongming Qiu, Matthew B. Schmidt, Steven T. Perry, David J. Hesse, Robert J. Luzenski, G. Bradley Chadwell, Ying Peng, James A. Mathias, Nathan P. Gano, Richard Q. Long, Wm. Allen Rogers, Ravi Arora, Wayne W. Simmons, Barry L. Yang, David J. Kuhlmann, Yong Wang, Thomas D. Yuschak, Thomas Forte, John Arthur Monahan, Robert Jetter
  • Patent number: 8298491
    Abstract: The disclosed invention relates to a process, comprising: conducting unit operations in at least two process zones in a process microchannel to treat and/or form a non-Newtonian fluid, a different unit operation being conducted in each process zone; and applying an effective amount of shear stress to the non-Newtonian fluid to reduce the viscosity of the non-Newtonian fluid in each process zone, the average shear rate in one process zone differing from the average shear rate in another process zone by a factor of at least about 1.2.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: October 30, 2012
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, Ravi Arora, David Kilanowski, Eric Daymo
  • Patent number: 8252245
    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: Grant
    Filed: November 3, 2005
    Date of Patent: August 28, 2012
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Tonkovich, David J. Hesse, Sean P. Fitzgerald, Bin Yang, Ravi Arora, Laura J. Silva, G. Bradley Chadwell, Kai Jarosch, Dongming Qiu
  • Patent number: 8221528
    Abstract: Methods of using microchannel separation systems including absorbents to improve thermal efficiency and reduce parasitic power loss. Energy is typically added to desorb a solute and then energy or heat is removed to absorb a solute using a working solution. The working solution or absorbent may comprise an ionic liquid, or other fluids that demonstrate a difference in affinity between a solute and other gases in a solution.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: July 17, 2012
    Assignee: Velocys, Inc.
    Inventors: Anna Lee Y. Tonkovich, Robert D. Litt, Ravi Arora, Qiu Dongming, Micheal Jay Lamont, Maddalena Fanelli, Wayne W. Simmons, Laura J. Silva, Steven Perry
  • Patent number: 8206597
    Abstract: The invention describes microchannel apparatus and catalysts that contain a layer of a metal aluminide or are made in a process in which a metal aluminide layer is formed as an intermediate. Certain processing conditions have surprisingly been found to result in superior coatings. The invention includes chemical processes conducted through apparatus described in the specification. Other catalysts and catalyst synthesis techniques are also described.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: June 26, 2012
    Assignee: Velocys, Inc.
    Inventors: Barry L. Yang, Anna Lee Tonkovich, Junko M. Watson, Francis P. Daly, Sean P. Fitzgerald, Chunshe Cao, Xiaohong Li, Terry Mazanec, Bradley R. Johnson, Ravi Arora, David J. Hesse, Dongming Qiu, Rachid Taha, Jeffrey J. Ramler, Yong Wang, Richard Long, Ya-Huei Chin
  • Publication number: 20120138151
    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: November 23, 2011
    Publication date: June 7, 2012
    Applicant: VELOCYS INC.
    Inventors: Anna Lee Tonkovich, Ravi Arora, David Kilanowski
  • Publication number: 20120095268
    Abstract: This invention relates to an apparatus, comprising: a plurality of plates in a stack defining at least one process layer and at least one heat exchange layer, each plate having a peripheral edge, the peripheral edge of each plate being welded to the peripheral edge of the next adjacent plate to provide a perimeter seal for the stack, the ratio of the average surface area of each of the adjacent plates to the average penetration of the weld between the adjacent plates being at least about 100 cm2/mm. The stack may be used as the core assembly for a microchannel processor. The microchannel processor may be used for conducting one or more unit operations, including chemical reactions such as SMR reactions.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 19, 2012
    Inventors: Anna Lee Tonkovich, Thomas Yuschak, Kai Tod Paul Jarosch, Paul Neagle, Bin Yang, Ravi Arora, Jeffrey Marco, Jennifer Marco, Barry L. Yang, Andreas Munding, Sara Kampfe
  • Publication number: 20120058063
    Abstract: The disclosed invention relates to a process, comprising: conducting unit operations in at least two process zones in a process microchannel to treat and/or form a non-Newtonian fluid, a different unit operation being conducted in each process zone; and applying an effective amount of shear stress to the non-Newtonian fluid to reduce the viscosity of the non-Newtonian fluid in each process zone, the average shear rate in one process zone differing from the average shear rate in another process zone by a factor of at least about 1.2.
    Type: Application
    Filed: October 26, 2011
    Publication date: March 8, 2012
    Inventors: Anna Lee Tonkovich, Ravi Arora, David Kilanowski, Eric Daymo
  • Patent number: 8124177
    Abstract: Interior microchannels within microchannel apparatus are uniformly coated. Remarkably, these uniform coatings are formed from materials that are applied to the interior microchannels after an apparatus has been assembled or manufactured. Coatings can be made uniform along the length of a microchannel, in the corner of a microchannel, and/or throughout numerous microchannels in an array of microchannels. Techniques for tailoring the application of washcoats onto microchannels is also described.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: February 28, 2012
    Assignee: Velocys
    Inventors: Anna Lee Tonkovich, Barry L. Yang, Terry Mazanec, Francis P. Daly, Sean P. Fitzgerald, Ravi Arora, Dongming Qiu, Bin Yang, Steven T. Perry, Kai Jarosh, Paul W. Neagle, David J. Hesse, Rachid Taha, Richard Long, Jeff Marco, Thomas D. Yuschak, Jeffrey J. Ramler, Mike Marchiando
  • Patent number: 8122909
    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: Grant
    Filed: March 23, 2006
    Date of Patent: February 28, 2012
    Assignee: Velocys
    Inventors: Anna Lee Tonkovich, Bin Yang, Steven T. Perry, Sean P. Fitzgerald, Ravi Arora, Kai Jarosch, Thomas D. Yuschak, Maddalena Fanelli, Tim Sullivan, Terry Mazanec
  • Publication number: 20110300039
    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: April 25, 2011
    Publication date: December 8, 2011
    Inventors: Anna Lee Tonkovich, Gary Roberts, Sean P. Fitzgerald, Paul W. Neagle, Dongming Qiu, Matthew B. Schmidt, Steven T. Perry, David J. Hesse, Robert J. Luzenski, G. Bradley Chadwell, Ying Peng, James A. Mathias, Nathan P. Gano, Richard Q. Long, Wm. Allen Rogers, Ravi Arora, Wayne W. Simmons, Barry L. Yang, David J. Kuhlmann, Yong Wang, Thomas D. Yuschak, Thomas Forte, John Arthur Monahan, Robert Jetter