Patents Assigned to Scientific Design Company, Inc.
  • Porous bodies with enhanced pore architecture
    Patent number: 9776169
    Abstract: A porous body is provided with enhanced fluid transport properties that is capable of performing or facilitating separations, or performing reactions and/or providing areas for such separations or reactions to take place. The porous body includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g and a surface area from 0.3 m2/g to 3.0 m2/g. The porous body further includes a pore architecture that provides at least one of a tortuosity of 7.0 or less, a constriction of 4.0 or less and a permeability of 30 mdarcys or greater. The porous body can be used in a wide variety of applications such as, for example, as a filter, as a membrane or as a catalyst carrier.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: October 3, 2017
    Assignee: Scientific Design Company, Inc.
    Inventor: Wojciech L. Suchanek
  • Carrier treatment to improve catalytic performance of an ethylene oxide catalyst
    Patent number: 9758498
    Abstract: A method for lowering the sodium content of different carriers which may have different physical properties as well as varying degrees of sodium is provided. The method, which lowers the sodium content from the surface, subsurface as well as the binding layer of the carrier, includes contacting a carrier with water. A rinse solution is recovered from the contacting. The rinse solution includes leached sodium from the carrier. The sodium content in the rinse solution is then determined. The contacting, recovering and determining are repeated until a steady state in the sodium content is achieved.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: September 12, 2017
    Assignee: Scientific Design Company, Inc.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • POROUS BODIES WITH ENHANCED PORE ARCHITECTURE
    Publication number: 20160354760
    Abstract: A porous body is provided with enhanced fluid transport properties that is capable of performing or facilitating separations, or performing reactions and/or providing areas for such separations or reactions to take place. The porous body includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g and a surface area from 0.3 m2/g to 3.0 m2/g. The porous body further includes a pore architecture that provides at least one of a tortuosity of 7.0 or less, a constriction of 4.0 or less and a permeability of 30 mdarcys or greater. The porous body can be used in a wide variety of applications such as, for example, as a filter, as a membrane or as a catalyst carrier.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 8, 2016
    Applicant: Scientific Design Company, Inc.
    Inventor: Wojciech L. Suchanek
  • METHOD FOR PRODUCING POROUS BODIES WITH ENHANCED PROPERTIES
    Publication number: 20160354759
    Abstract: A precursor mixture for producing a porous body, wherein the precursor mixture comprises: (i) milled alpha alumina powder having a particle size of 0.1 to 6 microns, (ii) boehmite powder that functions as a binder of the alpha alumina powders, and (iii) burnout materials having a particle sizes of 1-10 microns. In some embodiments, an unmilled alpha alumina powder having a particle size of 10 to 100 microns is also included in said precursor mixture. Also described herein is a method for producing a porous body in which the above-described precursor mixture is formed to a given shape, and subjected to a heat treatment step in which the formed shape is sintered to produce the porous body.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 8, 2016
    Applicant: Scientific Design Company, Inc.
    Inventors: Wojciech L. Suchanek, Matthew Julian
  • Carrier for ethylene oxide catalysts
    Patent number: 9452419
    Abstract: A carrier for an ethylene epoxidation catalyst is provided that includes an alumina first component and a mixed metal oxide of alumina second component. The mixed metal oxide of alumina second component comprises a corundum lattice structure having a plurality of O—Al—O bonds, wherein an Al atom of at least one O—Al—O bond of the plurality of O—Al—O bonds, but not all of the plurality of O—Al—O bonds, is replaced with a divalent or trivalent transition metal selected from the group consisting of scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni) copper (Cu), and zinc (Zn). A catalyst containing the carrier, as well as a process for the epoxidation of ethylene using the catalyst are also disclosed.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: September 27, 2016
    Assignee: Scientific Design Company, Inc.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • SILVER CATALYSTS WITH IMPROVED SIZE AND DISTRIBUTION DENSITY OF SILVER PARTICLES
    Publication number: 20160251326
    Abstract: A silver-based ethylene epoxidation catalyst is provided that exhibits improved performance, i.e., selectivity and activity decline. The catalyst that exhibits the improved performance includes greater than about 20% by weight of silver disposed on an alpha-alumina carrier, and a promoting amount of one or more promoters disposed on the alpha-alumina carrier. The silver is present on the alpha-alumina carrier as silver particles having a diameter of greater than about 150 nm and a distribution density of about 20 particles per 1 square micron or less.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 1, 2016
    Applicant: Scientific Design Company, Inc.
    Inventors: Wojciech L. Suchanek, Nabil Rizkalla, Andrzej Rokicki
  • Silver-based ethylene oxide catalyst having reduced sodium content
    Patent number: 9427729
    Abstract: A silver-based ethylene oxide catalyst that can be used in the vapor phase conversion of ethylene to ethylene oxide in the presence of oxygen is provided that includes a carrier; a catalytic effective amount of silver; and a promoting amount of at least one promoter, wherein the catalyst has a surface sodium content of 100 ppm or less.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: August 30, 2016
    Assignee: Scientific Design Company, Inc.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • Modified carrier for silver based ethylene oxide catalyst
    Patent number: 9321035
    Abstract: Silver based ethylene oxide catalysts having enhanced stability are disclosed. The enhanced stability silver based ethylene oxide catalysts include an alumina carrier which has been modified to include cavities on the surface of the carrier. The presence of the cavities on the surface of the modified carrier stops or at least impedes the motion of silver particles on the surface of the carrier during an epoxidation process. In particular, the cavities on the surface of the alumina carrier effectively trap and/or anchor silver particles and prevent them from further motion.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: April 26, 2016
    Assignee: Scientific Design Company, Inc.
    Inventors: Wojciech Suchanek, Andrzej Rokicki
  • Process for making ethanolamines
    Patent number: 9227912
    Abstract: A process for the preparation of ethanolamines comprising reacting a water-ammonia solution with ethylene oxide to form an effluent reaction mixture comprising unreacted ammonia, water and ethanolamines. This effluent reaction mixture is then subjected to a succession of steps to, inter alia, separate the ethanolamines.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: January 5, 2016
    Assignee: Scientific Design Company, Inc.
    Inventors: Katelyn Marvin, Barry Jay Billig
  • Epoxidation on process with added moderator
    Patent number: 9221774
    Abstract: A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having an optimal moderator concentration in the presence of an epoxidation catalyst at a first temperature and having a first selectivity; and increasing the optimal moderator concentration to a second moderator concentration and whereby the first selectivity is lowed to a second selectivity and the first temperature to a second temperature.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: December 29, 2015
    Assignee: Scientific Design Company, Inc.
    Inventors: Hassan Eisa Al-Ahmadi, Ashok S. Padia
  • Epoxidation process
    Patent number: 9221776
    Abstract: A method for the epoxidation of an olefin comprising reacting a feed gas composition containing an olefin, oxygen, and a halocarbon moderator having a first moderator concentration M1 in the presence of an epoxidation catalyst at a first temperature T1; increasing the first temperature to a second temperature T2; and increasing the first moderator concentration to a second moderator concentration M2, wherein the second moderator concentration is defined by: M2=M1(1+r)T2?T1 wherein the temperature has the units of degrees Celsius, and r is a constant factor which is in the range of from 0.001% to 100%.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: December 29, 2015
    Assignee: Scientific Design Company, Inc.
    Inventors: Andrew D. Schmitz, William Crudge
  • CARRIER TREATMENT TO IMPROVE CATALYTIC PERFORMANCE OF AN ETHYLENE OXIDE CATALYST
    Publication number: 20150329510
    Abstract: A method for lowering the sodium content of different carriers which may have different physical properties as well as varying degrees of sodium is provided. The method, which lowers the sodium content from the surface, subsurface as well as the binding layer of the carrier, includes contacting a carrier with water. A rinse solution is recovered from the contacting. The rinse solution includes leached sodium from the carrier. The sodium content in the rinse solution is then determined. The contacting, recovering and determining are repeated until a steady state in the sodium content is achieved.
    Type: Application
    Filed: July 28, 2015
    Publication date: November 19, 2015
    Applicant: SCIENTIFIC DESIGN COMPANY, INC.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • Process for making ethanolamines
    Patent number: 9120720
    Abstract: A process for the preparation of ethanolamines comprising reacting a water-ammonia solution comprising ammonia and water with ethylene oxide.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: September 1, 2015
    Assignee: Scientific Design Company, Inc.
    Inventors: Katelyn Marvin, Barry Jay Billig
  • Ethylene oxide catalyst with optimized cesium content
    Patent number: 9115104
    Abstract: The invention is directed to a catalyst useful in the epoxidation of an olefin to an olefin oxide, the catalyst comprising a support having a multimodal pore size distribution comprising a first and a second distribution of pore sizes wherein each distribution of pore sizes possesses a different mean pore size and a different pore size of maximum concentration, the support having a catalytically effective amount of silver, a promoting amount of rhenium, and cesium in an amount up to, but not exceeding 700 ppm disposed thereon. The invention is also directed to methods for using the catalyst for the commercial production of an olefin oxide from olefin and oxygen-containing feed gases.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: August 25, 2015
    Assignee: Scientific Design Company, Inc.
    Inventor: Christian Gückel
  • Epoxidation process
    Patent number: 9096562
    Abstract: A method for producing ethylene oxide comprising: providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; contacting the one or more feed components with a desulfurization catalyst comprising a high surface area support and an amount of silver, wherein at least 20% of the silver is present as oxidized silver; and contacting the one or more feed components with a silver-containing epoxidation catalyst disposed inside an ethylene oxide reactor to form a reaction gas comprising ethylene oxide.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: August 4, 2015
    Assignee: Scientific Design Company, Inc.
    Inventors: Andrzej Rokicki, Jason Durand, Rudy Anthony Morin, Wojciech Suchanek
  • Epoxidation process
    Patent number: 9096561
    Abstract: A method for the oxidation of ethylene to form ethylene oxide is provided that includes passing an aqueous stream through a guard bed and one or more ion exchange treatment beds. The guard bed and the aqueous stream contain from about 0.2 to 20 wt % ethylene glycol. The guard bed contains a cross-linked polystyrene resin, partially functionalized with quaternary ammonium functional groups and the resin has a surface area of greater than 400 m2/g.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: August 4, 2015
    Assignee: Scientific Design Company, Inc.
    Inventor: Mansoor Husain
  • Carrier treatment to improve catalytic performance of an ethylene oxide catalyst
    Patent number: 9095843
    Abstract: A method for lowering the sodium content of different carriers which may have different physical properties as well as varying degrees of sodium is provided. The method, which lowers the sodium content from the surface, subsurface as well as the binding layer of the carrier, includes contacting a carrier with water. A rinse solution is recovered from the contacting. The rinse solution includes leached sodium from the carrier. The sodium content in the rinse solution is then determined. The contacting, recovering and determining are repeated until a steady state in the sodium content is achieved.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: August 4, 2015
    Assignee: Scientific Design Company, Inc.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • Start-up process for high selectivity ethylene oxide catalysts
    Patent number: 9096563
    Abstract: A high selectivity catalyst start-up process is provided in which an excess level of chloride moderator (greater than 1 ppm) is present in the feed gas composition during each of the various stages of the start-up process. The excess level of chloride used in the start-up process maintains a low level of selectivity (less than 86%) during the entire start-up process. Despite the low selectivity values achieved during the start-up process of the present disclosure, high selectivity catalysts that are conditioned by such a start-up process exhibit improved catalyst performance during the normal operation of the catalyst.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: August 4, 2015
    Assignee: Scientific Design Company, Inc.
    Inventor: Serguei Pak
  • PROCESS FOR MAKING ETHANOLAMINES
    Publication number: 20150183719
    Abstract: A process for the preparation of ethanolamines comprising reacting a water-ammonia solution with ethylene oxide to form an effluent reaction mixture comprising unreacted ammonia, water and ethanolamines. This effluent reaction mixture is then subjected to a succession of steps to, inter alia, separate the ethanolamines.
    Type: Application
    Filed: December 22, 2014
    Publication date: July 2, 2015
    Applicant: SCIENTIFIC DESIGN COMPANY, INC.
    Inventors: Katelyn Marvin, Barry Jay Billig
  • PROCESS FOR MAKING ETHANOLAMINES
    Publication number: 20150183720
    Abstract: A process for the preparation of ethanolamines comprising reacting a water-ammonia solution comprising ammonia and water with ethylene oxide.
    Type: Application
    Filed: December 22, 2014
    Publication date: July 2, 2015
    Applicant: SCIENTIFIC DESIGN COMPANY, INC.
    Inventors: Katelyn Marvin, Barry Jay Billig