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
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
Abstract: Methods of oxidative dehydrogenation (ODH) is provided wherein 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.
Type:
Grant
Filed:
June 28, 2010
Date of Patent:
January 31, 2012
Assignee:
Velocys
Inventors:
John H. Brophy, Kai Jarosch, Terry J. Mazanec, Matthew B. Schmidt, Laura J. Silva, Anna Lee Tonkovich, Fred Pesa, David J. Hesse
Abstract: This invention relates to a process for converting a carbonaceous material to a desired product comprising one or more hydrocarbons or one or more alcohols, the process comprising: (A) gasifying the carbonaceous material at a temperature in excess of about 700° C. to form synthesis gas; and (B) flowing the synthesis gas in a microchannel reactor in contact with a catalyst to convert the synthesis gas to the desired product.
Type:
Grant
Filed:
April 9, 2009
Date of Patent:
January 24, 2012
Assignee:
Velocys, Inc.
Inventors:
Wayne W. Simmons, Robert Dwayne Litt, Anna Lee Tonkovich, Laura J. Silva, Daniel Francis Ryan, Bruce Stangeland, John Brophy, Jeffrey S. McDaniel
Abstract: Catalysts containing 30 weight percent or more platinum have surprisingly been discovered to possess superior stability and activity for catalyzing combustion reactions. The addition of rhenium improves catalyst performance in fuel lean conditions but has undesirable effects in fuel rich conditions. The invention provides integrated combustion microreactors, chemical systems utilizing these integrated combustion microreactors, methods of combustion, and methods of providing heat to endothermic reactions in integrated combustion microreactors.
Type:
Grant
Filed:
October 15, 2004
Date of Patent:
November 22, 2011
Assignee:
Velocys
Inventors:
Francis P. Daly, Junko M. Watson, Yong Wang, Jianli Hu, Chunshe Cao, Richard Long
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:
April 20, 2007
Date of Patent:
November 1, 2011
Assignee:
Velocys, Inc.
Inventors:
Anna Lee Tonkovich, Ravi Arora, David Kilanowski, Eric Daymo
Abstract: The invention provides methods, apparatus and chemical systems for making vinyl acetate from ethylene, oxygen, and acetic acid.
Type:
Grant
Filed:
November 18, 2008
Date of Patent:
October 4, 2011
Assignees:
Velocys, Inc, Celanese International Corporation
Inventors:
Terry Mazanec, Victor J. Johnston, Michael Huckman, Sean P. Fitzgerald, James A. Foster, Daniel Lindley, Anna Lee Tonkovich, Francis P. Daly, Leslie Wade, Tony Hammock, Thomas Yuschak, Bin Yang, Kai Jarosch
Abstract: Methods of using microchannel separation systems including absorbents to improve thermal efficiency and reduce parasitic power loss. Energy is typically added to desorb methane and then energy or heat is removed to absorb methane using a working solution. The working solution or absorbent may comprise an ionic liquid, or other fluids that demonstrate a difference in affinity between methane and nitrogen in a solution.
Type:
Grant
Filed:
August 1, 2008
Date of Patent:
October 4, 2011
Assignee:
Velocys, Inc.
Inventors:
Anna Lee Y. Tonkovich, Robert D. Litt, Qiu Dongming, Laura J. Silva, Micheal Jay Lamont, Maddalena Fanelli, Wayne W. Simmons, Steven Perry
Abstract: Methods of oxidative dehydrogenation are described. Surprisingly, Pd and Au alloys of Pt have been discovered to be superior for oxidative dehydrogenation in microchannels. Methods of forming these catalysts via an electroless plating methodology are also described. An apparatus design that minimizes heat transfer to the apparatus' exterior is also described.
Type:
Grant
Filed:
September 1, 2006
Date of Patent:
August 16, 2011
Assignee:
Velocys
Inventors:
Anna Lee Tonkovich, Bin Yang, Steven T. Perry, Terry Mazanec, Ravi Arora, Francis P. Daly, Richard Long, Thomas D. Yuschak, Paul W. Neagle, Amanda Glass
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:
Application
Filed:
January 24, 2011
Publication date:
July 28, 2011
Applicant:
VELOCYS INC.
Inventors:
Richard Long, Barry L. Yang, Francis P. Daly, Junko M. Watson, Terry Mazanec, Sean P. Fitzgerald, Bradley R. Johnson, Xiaohong Li, Chunshe Cao, Ya-Huei Chin, Anna Lee Tonkovich, Ravi Arora, David J. Hesse, Dongming Qiu, Rachid Taha, Jeffrey J. Ramler, Yong Wang
Abstract: Catalysts are described in which an active catalyst is disposed on a low surface area, oxide support. Methods of forming catalysts are described in which a Cr-containing metal is oxidized to form a chromium oxide layer and an active catalyst is applied directly on the chromium oxide layer. Methods of making new catalysts are described in which the surface is sonicated prior to depositing the catalyst. Catalyst systems and methods of oxidation are also described. The inventive systems, catalysts and methods are, in some instances, characterized by surprisingly superior results.
Type:
Grant
Filed:
December 18, 2007
Date of Patent:
July 19, 2011
Assignee:
Velocys
Inventors:
Barry Lee-Mean Yang, Ruiqiang Long, Junko M. Watson, Abhishek Gupta
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:
Application
Filed:
December 18, 2009
Publication date:
June 23, 2011
Applicant:
VELOCYS INC.
Inventors:
Paul W. Neagle, Anna Lee Tonkovich, Soumitra Deshmukh, Ravi Arora
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.
Type:
Application
Filed:
June 28, 2010
Publication date:
June 23, 2011
Applicant:
Velocys Inc.
Inventors:
John H. Brophy, Kai Jarosch, Terry J. Mazanec, Matthew B. Schmidt, Laura J. Silva, Anna Lee Tonkovich, Fred Pesa, David J. Hesse
Abstract: The present invention includes methods and apparatuses for producing hydrogen peroxide using microchannel technology. An exemplary process for producing hydrogen peroxide comprises flowing feed streams into intimate fluid communication with one another within a process microchannel to form a reactant mixture stream comprising a hydrogen source and an oxygen source such as, without limitation, hydrogen gas and oxygen gas. Thereafter, a catalyst is contacted by the reactant mixture and is operative to convert a majority of the reactant mixture to hydrogen peroxide that is withdrawn via an egressing product stream. During the hydrogen peroxide chemical reaction, exothermic energy is generated and absorbed by the fluid within the microchannel as well as the microchannel itself.
Type:
Grant
Filed:
June 11, 2008
Date of Patent:
June 14, 2011
Assignee:
Velocys, Inc.
Inventors:
Anna Lee Y. Tonkovich, Bin Yang, William Allen Rogers, Jr., Paul William Neagle, Sean P. Fitzgerald, Kai Tod Paul Jarosch, Dongming Qiu, David J. Hesse, Micheal Lamont
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:
July 3, 2007
Date of Patent:
April 26, 2011
Assignee:
Velocys
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, Ravi Arora, Barry L. Yang, David J. Kuhlmann, Thomas D. Yuschak, John Arthur Monahan
Abstract: The disclosed invention relates to a process for converting a feed composition comprising one or more hydrocarbons to a product comprising one or more unsaturated hydrocarbons, the process comprising: flowing the feed composition and steam in contact with each other in a microchannel reactor at a temperature in the range from about 200° C. to about 1200° C. to convert the feed composition to the product, the process being characterized by the absence of catalyst for converting the one or more hydrocarbons to one or more unsaturated hydrocarbons. Hydrogen and/or oxygen may be combined with the feed composition and steam.
Type:
Grant
Filed:
February 2, 2007
Date of Patent:
April 12, 2011
Assignee:
Velocys, Inc.
Inventors:
Anna Lee Tonkovich, Thomas Yuschak, Timothy J. LaPlante, Scott Rankin, Steven T. Perry, Sean Patrick Fitzgerald, Wayne W. Simmons, Terry Mazanec, Eric Daymo
Abstract: A process of conducting a catalyst reaction or fluid separation in 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:
Grant
Filed:
December 28, 2006
Date of Patent:
March 1, 2011
Assignee:
Velocys, Inc.
Inventors:
Anna Lee Tonkovich, Dongming Qiu, Richard Q. Long, Barry L. Yang, Thomas Yuschak, Steven T. Perry
Abstract: This invention describes gas-solid, liquid-solid and gas-solid-liquid processes in microchannels devices including such processes as heterogeneous catalysis, particle formation, particle attrition, particle separation and adsorption or desorption of selected species. Various processes can be enhanced by the unique properties of microchannels such as the predominance of laminar flow, high rates of shear, high rates of heat transfer and high rates of mass transfer. Also encompassed by this invention are methods for the introduction to and removal from microchannels of particle containing fluid streams.
Type:
Application
Filed:
October 25, 2010
Publication date:
February 17, 2011
Applicant:
VELOCYS INC.
Inventors:
Kai Jarosch, Anna Lee Tonkovich, David J. Hesse, Eric Daymo, Steven T. Perry, Laura J. Silva
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:
March 23, 2005
Date of Patent:
January 25, 2011
Assignee:
Velocys
Inventors:
Barry L. Yang, Francis P. Daly, Junko M. Watson, Terry Manzanec, Sean P. Fitzgerald, Bradley R. Johnson, Xiaohong Li, Chunshe Cao, Ya-Huei Chin, Anna Lee Tonkovich, Ravi Arora, David J. Hesse, Dongming Qiu, Rachid Taha, Jeffrey J. Ramler, Yong Wang, Richard Long
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:
Grant
Filed:
March 23, 2007
Date of Patent:
December 7, 2010
Assignee:
Velocys, Inc.
Inventors:
Anna Lee Tonkovich, Kai Tod Paul Jarosch, Bin Yang, Francis P. Daly, Thomas P. Hickey, Jeffrey Marco, Timothy J. LaPlante, Richard Q. Long