Laura J Silva

US Patent:

6622519, Sep 23, 2003

Filed:

Aug 15, 2002

Appl. No.:

10/219990

Inventors:

James A. Mathias - Columbus OH
Ravi Arora - Dublin OH
Wayne W. Simmons - Dublin OH
Jeffrey S. McDaniel - Columbus OH
Anna Lee Tonkovich - Marysville OH
William A. Krause - Houston TX
Laura J. Silva - Dublin OH

Assignee:

Velocys, Inc. - Plain City OH

International Classification:

F25J 100

US Classification:

62611, 62613

Abstract:

This invention relates to a process for cooling a product in a heat exchanger, the process comprising: flowing a refrigerant through a set of first microchannels in the heat exchanger; flowing a refrigerant through a set of second microchannels in the heat exchanger, the refrigerant flowing through the set of second microchannels being at a lower temperature, a lower pressure or both a lower temperature and a lower pressure than the refrigerant flowing through the set of first microchannels; and flowing a product through a set of third microchannels in the heat exchanger, the product exiting the set of third microchannels having a cooler temperature than the product entering the set of third microchannels. This process is suitable for liquefying gaseous products including natural gas.

US Patent:

7000427, Feb 21, 2006

Filed:

Aug 8, 2003

Appl. No.:

10/636659

Inventors:

James A. Mathias - Columbus OH, US
Ravi Arora - Dublin OH, US
Wayne W. Simmons - Dublin OH, US
Jeffrey S. McDaniel - Columbus OH, US
Anna Lee Tonkovich - Marysville OH, US
William A. Krause - Houston TX, US
Laura J. Silva - Dublin OH, US
Dongming Qiu - Dublin OH, US

Assignee:

Velocys, Inc. - Plain City OH

International Classification:

F25J 1/00

US Classification:

62612, 62611, 165165

Abstract:

This invention relates to a process for cooling or liquefying a fluid product (e. g. , natural gas) in a heat exchanger, the process comprising: flowing a fluid refrigerant through a set of refrigerant microchannels in the heat exchanger; and flowing the product through a set of product microchannels in the heat exchanger, the product flowing through the product microchannels exchanging heat with the refrigerant flowing through the refrigerant microchannels, the product exiting the set of product microchannels being cooler than the product entering the set of product microchannels. The process has a wide range of applications, including liquefying natural gas.

US Patent:

7305850, Dec 11, 2007

Filed:

Jul 23, 2004

Appl. No.:

10/898687

Inventors:

Anna Lee Tonkovich - Marysville OH, US
Wayne W. Simmons - Dublin OH, US
Laura J. Silva - Dublin OH, US
Dongming Qiu - Dublin OH, US
Steven T. Perry - Galloway OH, US
Thomas Yuschak - Dublin OH, US

Assignee:

Velocys, Inc. - Plain City OH

International Classification:

F25J 3/00

US Classification:

62617, 62623, 62643, 62902

Abstract:

The disclosed invention relates to a process for distilling a fluid mixture in a microchannel distillation unit, the microchannel distillation unit comprising a plurality of microchannel distillation sections, the fluid mixture comprising a more volatile component and a less volatile component, the process comprising: flowing a vapor phase of the fluid mixture in a first microchannel distillation section in contact with a liquid phase of the fluid mixture, part of the more volatile component transferring from the liquid phase to the vapor phase to form a more volatile component rich vapor phase, part of the less volatile component transferring from the vapor phase to the liquid phase to form a less volatile component rich liquid phase; separating the more volatile component rich vapor phase from the less volatile component rich liquid phase; flowing the less volatile component rich liquid phase to another microchannel distillation section upstream from the first microchannel distillation section; and flowing the more volatile rich vapor phase to another microchannel distillation section downstream from the first microchannel distillation section.

US Patent:

7307104, Dec 11, 2007

Filed:

May 12, 2004

Appl. No.:

10/844061

Inventors:

Dongming Qiu - Dublin OH, US
Anna Lee Tonkovich - Marysville OH, US
Laura J. Silva - Dublin OH, US
Richard Q. Long - Columbus OH, US
Barry L. Yang - Dublin OH, US
Kristina Marie Trenkamp - Dublin OH, US
Jennifer Anne Freeman - Columbus OH, US

Assignee:

Velocys, Inc. - Plain City OH

International Classification:

B01F 3/08
B01F 17/00

US Classification:

516 54, 516 21, 516 22, 516 23, 516928

Abstract:

The disclosed invention relates to a process for making an emulsion. The process comprises: flowing a first liquid through a process microchannel, the process microchannel having a wall with an apertured section; flowing a second liquid through the apertured section into the process microchannel in contact with the first liquid, the first liquid forming a continuous phase, the second liquid forming a discontinuous phase dispersed in the continuous phase.

US Patent:

7402719, Jul 22, 2008

Filed:

May 19, 2003

Appl. No.:

10/441921

Inventors:

John H. Brophy - Bristol, GB
Kai Jarosch - Bexley OH, US
Terry J. Mazanec - Solon OH, US
Matthew B. Schmidt - Columbus OH, US
Laura J. Silva - Dublin OH, US
Anna Lee Tonkovich - Marysville OH, US
Fred Pesa - Aurora OH, US
David J. Hesse - Columbus OH, US

Assignee:

Velocys - Plain City OH

International Classification:

C07C 5/327
C07C 5/333

US Classification:

585658, 585660, 585661, 585662, 585663, 585921, 585925

Abstract:

The invention provides methods of oxidative dehydrogenation (ODH). Conducting ODH in microchannels has unexpectedly been found to yield superior performance when compared to the same reactions at the same conditions in larger reactors. ODH methods employing a Mo—V—Mg—O catalyst is also described. Microchannel apparatus for conducting ODH is also disclosed.

US Patent:

7404936, Jul 29, 2008

Filed:

Oct 22, 2002

Appl. No.:

10/279089

Inventors:

Terry J. Mazanec - Solon OH, US
Yong Wang - Richland WA, US
Laura J. Silva - Dublin OH, US
David P. VanderWiel - Columbus OH, US

Assignee:

Velocys - Plain City OH

International Classification:

F28D 15/00

US Classification:

422198

Abstract:

The present invention provides new microreactor systems, catalysts, and chemical processes. Methods of making novel catalysts and reaction apparatus are also described.

US Patent:

7422910, Sep 9, 2008

Filed:

Oct 27, 2003

Appl. No.:

10/695400

Inventors:

Sean P. Fitzgerald - Columbus OH, US
Anna Lee Tonkovich - Marysville OH, US
Ravi Arora - Dublin OH, US
Dongming Qiu - Dublin OH, US
Thomas D. Yuschak - Dublin OH, US
Laura J. Silva - Dublin OH, US
Wm. Allen Rogers - Marysville OH, US
Kai Jarosch - Bexley OH, US
Matthew B. Schmidt - Columbus OH, US

Assignee:

Velocys - Plain City OH

International Classification:

G01N 1/10

US Classification:

436180, 422 99, 422100, 422101

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.

US Patent:

7459508, Dec 2, 2008

Filed:

Mar 2, 2005

Appl. No.:

11/073350

Inventors:

Sean P. Fitzgerald - Columbus OH, US
David J. Hesse - Columbus OH, US
Laura J. Silva - Plain City OH, US

Assignee:

Velocys, Inc. - Plain City OH

International Classification:

C08F 2/00
B01J 19/24

US Classification:

526 88, 526918, 528502 A, 422131, 422138, 422228

Abstract:

A microchannel polymerization reactor comprising: (a) a first microchannel adapted to carry a reactant stream; (b) a fluid conduit adapted to carry a fluid in thermal communication with the first microchannel; and (c) a static mixer in fluid communication with the first microchannel adapted to provide a mixing zone operative to change the cross-sectional fluid flow profile at a predetermined point along the first microchannel without changing the primary direction of the reactant stream through the first microchannel. The present invention also includes a method of carrying out a polymerization reaction within a microchannel reactor comprising: (i) directing at least one of monomer, initiator, water, surfactant, coagulant, and solvent into a reactant stream and into contact with reactant flowing within a first microchannel to initiate a polymerization reaction occurring within a first microchannel; and (ii) mixing the reactant of the reactant stream by positioning at least one static mixer in series with the reactant stream, where the static mixer is adapted to change a cross-sectional fluid flow profile of the reactant stream flowing through the first microchannel without changing a primary direction of the reactant stream through the first microchannel.