Patents by Inventor Sherri L. Boyd
Sherri L. Boyd 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: 7074371Abstract: A mixing system is disclosed which provides improved multiphase mixing through the use of a novel quench injection means. The mixing system comprises a horizontal collection tray, a mixing chamber positioned below the collection tray, and at least one passageway extending through the collection tray into the mixing chamber. The mixing chamber and the collection tray define a two-phase mixing volume. The passageway conducts fluid from above the collection tray into the mixing chamber. The mixing chamber preferably includes at least one outlet opening for the downward passage of fluid. In particular, mixing of quench fluid is significantly improved when quench is introduced into a region above the collection tray and where (i) lateral velocities of the process fluids are low, (ii) sufficient volume is available for the quench fluid to mix with the process fluids, and (iii) quench injection occurs opposite the prevailing direction of process fluid flow.Type: GrantFiled: May 16, 2003Date of Patent: July 11, 2006Assignee: ExxonMobil Research and Engineering CompanyInventors: Neil K. McDougald, Gregory P. Muldowney, Sherri L. Boyd
-
Patent number: 7052654Abstract: The present invention comprises a mixing system that provides improved mixing of quench gas and process fluids in a height constrained interbed space while not increasing pressure drop. In particular, the device improves the effectiveness of an existing mixing volume in mixing the gas phase of two-phase systems. The mixing system includes a horizontal collection tray, a mixing chamber positioned below the collection tray, at least one passageway extending through the collection tray into the mixing chamber, and a vapor slipstream passageway extending through the collection tray into the mixing chamber for directing a vapor slipstream from above the collection tray into the mixing chamber. The mixing chamber and the collection tray define a two-phase mixing volume. The passageway conducts fluid containing at least some vapor from above the collection tray into the mixing chamber. The mixing chamber preferably includes at least one outlet opening for the downward passage of fluid.Type: GrantFiled: February 5, 2003Date of Patent: May 30, 2006Assignee: ExxonMobile Research and Engineering CompanyInventors: Neil K. McDougald, Sherri L. Boyd, Gregory P. Muldowney
-
Patent number: 7045103Abstract: The present invention provides a novel means to provide more effective mixing of quench gas and process fluids in a height constrained interbed space of a catalytic reactor without increasing pressure drop. In particular, the device improves the effectiveness of an existing mixing volume in mixing the gas phase of two-phase systems. According to the present invention, the quench zone hardware contained within the reactor includes a substantially vertical continuous perimeter solid baffle attached to the underside of the collection tray.Type: GrantFiled: January 13, 2003Date of Patent: May 16, 2006Assignee: ExxonMobil Research and Engineering CompanyInventors: Neil K. McDougald, Sherri L. Boyd, Gregory P. Muldowney
-
Publication number: 20040228779Abstract: A mixing system is disclosed which provides improved multiphase mixing through the use of a novel quench injection means. The mixing system comprises a horizontal collection tray, a mixing chamber positioned below the collection tray, and at least one passageway extending through the collection tray into the mixing chamber. The mixing chamber and the collection tray define a two-phase mixing volume. The passageway conducts fluid from above the collection tray into the mixing chamber. The mixing chamber preferably includes at least one outlet opening for the downward passage of fluid. In particular, mixing of quench fluid is significantly improved when quench is introduced into a region above the collection tray and where (i) lateral velocities of the process fluids are low, (ii) sufficient volume is available for the quench fluid to mix with the process fluids, and (iii) quench injection occurs opposite the prevailing direction of process fluid flow.Type: ApplicationFiled: May 16, 2003Publication date: November 18, 2004Inventors: Neil K. McDougald, Gregory P. Muldowney, Sherri L. Boyd
-
Publication number: 20040151643Abstract: The present invention comprises a mixing system that provides improved mixing of quench gas and process fluids in a height constrained interbed space while not increasing pressure drop. In particular, the device improves the effectiveness of an existing mixing volume in mixing the gas phase of two-phase systems. The mixing system includes a horizontal collection tray, a mixing chamber positioned below the collection tray, at least one passageway extending through the collection tray into the mixing chamber, and a vapor slipstream passageway extending through the collection tray into the mixing chamber for directing a vapor slipstream from above the collection tray into the mixing chamber. The mixing chamber and the collection tray define a two-phase mixing volume. The passageway conducts fluid containing at least some vapor from above the collection tray into the mixing chamber. The mixing chamber preferably includes at least one outlet opening for the downward passage of fluid.Type: ApplicationFiled: February 5, 2003Publication date: August 5, 2004Applicant: ExxonMobil Research and Engineering Company (formerly Exxon Research and Engineering Company)Inventors: Neil K. McDougald, Sherri L. Boyd, Gregory P. Muldowney
-
Publication number: 20040136886Abstract: The present invention provides a novel means to provide more effective mixing of quench gas and process fluids in a height constrained interbed space of a catalytic reactor without increasing pressure drop. In particular, the device improves the effectiveness of an existing mixing volume in mixing the gas phase of two-phase systems. According to the present invention, the quench zone hardware contained within the reactor includes a substantially vertical continuous perimeter solid baffle attached to the underside of the collection tray.Type: ApplicationFiled: January 13, 2003Publication date: July 15, 2004Inventors: Neil K. McDougald, Sherri L. Boyd, Gregory P. Muldowney
-
Patent number: 6669915Abstract: A fluid inlet nozzle distributor for a downflow fixed bed reactor which is a cylindrical housing having inlet and outlet openings and a swirl chamber disposed within said housing, whereby said swirl chamber imparts rotational motion to a fluid exiting said inlet nozzle.Type: GrantFiled: July 13, 1999Date of Patent: December 30, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Sherri L. Boyd, Gregory P. Muldowney
-
Patent number: 6180068Abstract: An apparatus for mixing vapor and liquid reactants within a column. The apparatus forms a first mixing zone into which a first reactant (e.g. vapor) is homogenized by swirl flow and flows vertically downward. The apparatus further forms a second mixing zone into which a second reactant (e.g., liquid) is homogenized by swirl flow and flows vertically downward. Additional amounts of either the first reactant, the second reactant or both may be added into or ahead of the first mixing zone or the second mixing zone as appropriate. The first reactant is directed radially to collide in crossflow with a thin sheet of the second reactant to provide intense mixing of the first and second reactants. Due to separate mixing zones for the two reactants, the mixing conditions for each can be tailored to best mix each reactant while minimizing pressure drop and minimizing the space and volume requirements for this mixing.Type: GrantFiled: May 13, 1999Date of Patent: January 30, 2001Assignee: Mobil Oil CorporationInventors: Sherri L. Boyd, Gregory P. Muldowney
-
Patent number: 5935413Abstract: An apparatus for mixing vapor and liquid reactants within a column. The apparatus forms a first mixing zone into which a first reactant (e.g., vapor) is homogenized by swirl flow and flows vertically downward. The apparatus further forms a second mixing zone into which a second reactant (e.g., liquid) is homogenized by swirl flow and flows vertically downward. Additional amounts of either the first reactant, the second reactant or both may be added into or ahead of the first mixing zone or the second mixing zone as appropriate. The first reactant is directed radially to collide in crossflow with a thin sheet of the second reactant to provide intense mixing of the first and second reactants. Due to separate mixing zones for the two reactants, the mixing conditions for each can be tailored to best mix each reactant while minimizing pressure drop and minimizing the space and volume requirements for this mixing.Type: GrantFiled: December 3, 1997Date of Patent: August 10, 1999Assignee: Mobil Oil CorporationInventors: Sherri L. Boyd, Gregory P. Muldowney