Patents by Inventor Max M. Tirtowidjojo

Max M. Tirtowidjojo 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: 10513478
    Abstract: The present invention provides improved processes for preparing halogenated alkanes. In particular, the processes comprise reacting an alkene, a halogenated alkene, or combinations thereof and a halogenated methane with at least one chlorine atom.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: December 24, 2019
    Assignee: BLUE CUBE IP LLC
    Inventors: John D. Myers, Max M. Tirtowidjojo, Thomas U. Luebbe, Marc Sell
  • Publication number: 20190202759
    Abstract: The present invention provides a process for the dehydrochlorination of a chlorinated alkane to produce a chlorinated alkene. In particular, the processes comprise contacting a chlorinated alkane, a base, and a phase transfer catalyst.
    Type: Application
    Filed: September 5, 2017
    Publication date: July 4, 2019
    Inventors: John D. Myers, Max M. Tirtowidjojo
  • Patent number: 10189756
    Abstract: The present invention provides adiabatic plug flow reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors comprise one or more designs that minimize the production of by-products at a desired conversion.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: January 29, 2019
    Assignee: BLUE CUBE IP LLC
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Thomas U. Luebbe, Thomas J. Parsons, Avani Maulik Patel, Marcus Wobser
  • Publication number: 20190023631
    Abstract: The present invention provides improved processes for preparing halogenated alkanes. In particular, the processes comprise reacting an alkene, a halogenated alkene, or combinations thereof and a halogenated methane with at least one chlorine atom.
    Type: Application
    Filed: January 4, 2017
    Publication date: January 24, 2019
    Inventors: John D. Myers, Max M. Tirtowidjojo, Thomas U. Luebbe, Marc M. Sell
  • Patent number: 10065157
    Abstract: The present invention relates to a mixer, an apparatus comprising the mixer and a reactor, and processes incorporating the same. The mixer comprises an inlet (104) to a chamber (102), wherein the chamber inlet angle is less than 90°. The mixer further comprises an expander zone (106) that expands outwardly at an expander angle of less than 90°. The mixer may be coupled to a reactor at its outlet, which may closely approximate the size of the reactor inlet due to the expander (106).
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: September 4, 2018
    Assignee: Blue Cube IP LLC
    Inventors: Max M. Tirtowidjojo, Hua Bai, Edward M. Calverley
  • Patent number: 10047025
    Abstract: A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce ethylene, hydrogen chloride (HCl) and vinyl chloride monomer (VCM).
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: August 14, 2018
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Barry B. Fish, Matthew T. Pretz, Max M. Tirtowidjojo
  • Patent number: 10047024
    Abstract: A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce ethylene, hydrogen chloride (HCl) and vinyl chloride monomer (VCM).
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: August 14, 2018
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Barry B. Fish, Matthew T. Pretz, Max M. Tirtowidjojo
  • Patent number: 10023511
    Abstract: A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce vinylidene (1,1-dichloroethylene), hydrogen chloride and ethylene.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: July 17, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Barry B. Fish, Matthew T. Pretz, Max M. Tirtowidjojo
  • Patent number: 10010856
    Abstract: At least one method to efficiently produce alkylene oxide from partial oxidation of hydrocarbons using a high efficiency heterogeneous catalyst in a fixed bed enclosed within a reaction vessel, and a reaction vessel constructed to facilitate the same.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: July 3, 2018
    Assignee: DOW TECHNOLOGY INVESTMENTS LLC
    Inventors: Max M. Tirtowidjojo, Christina Zarth, Subrata Sen, Pramod D. Patil
  • Patent number: 9919981
    Abstract: A feedstream comprising hydrogen and a gas selected from carbon monoxide, carbon dioxide, or a combination thereof is converted to a product mixture containing a combination of saturated and unsaturated two carbon atom and three carbon atom hydrocarbons via contact with a mixed catalyst comprising a mixed metal oxide catalyst selected from a copper oxide, copper oxide/zinc oxide, copper oxide/alumina, copper oxide/zinc oxide/alumina catalyst, a zinc oxide/chromium oxide catalyst, or a combination thereof, in admixture with a molecular sieve catalyst having a CHA, AEI, AEL, AFI, BEA, or DDR framework type, or a combination of such molecular sieves. Exemplary molecular sieve catalysts include SAPO-34, SAPO-18, SAPO-5, and Beta. Advantages include reduced production of C1 hydrocarbons, C4 and higher hydrocarbons, or both; long catalyst lifetimes; desirable conversions; and desirable proportions of C2 and C3 paraffins.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: March 20, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Adam Chojecki, Davy Nieskens, Thomas Davidian, Peter E. Groenendijk, Matthijs Ruitenbeek, Barry B. Fish, Max M. Tirtowidjojo, Garmt R. Meima
  • Publication number: 20170334813
    Abstract: A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce ethylene, hydrogen chloride (HCl) and vinyl chloride monomer (VCM).
    Type: Application
    Filed: November 10, 2015
    Publication date: November 23, 2017
    Inventors: Barry B. Fish, Matthew T. Pretz, Max M. Tirtowidjojo
  • Publication number: 20170334811
    Abstract: A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce ethylene, hydrogen chloride (HCl) and vinyl chloride monomer (VCM).
    Type: Application
    Filed: November 10, 2015
    Publication date: November 23, 2017
    Inventors: Barry B. Fish, Matthew T. Pretz, Max M. Tirtowidjojo
  • Publication number: 20170334812
    Abstract: A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce vinylidene (1,1-dichloroethylene), hydrogen chloride and ethylene.
    Type: Application
    Filed: November 10, 2015
    Publication date: November 23, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Barry B. Fish, Matthew T. Pretz, Max M. Tirtowidjojo
  • Patent number: 9795941
    Abstract: The present invention provides a weir quench, an apparatus utilizing the weir quench and processes incorporating the same. The weir quench incorporates an inlet having an inner diameter (Di) and an upper chamber having an inner diameter (Duc), wherein the inlet inner diameter (Di) is at least 90% of the upper chamber inner diameter (Duc). The apparatus constitutes a reactor having an outlet with an inner diameter fluidly coupled with the weir quench inlet, wherein the ratio of the reactor oulet inner diameter (Dr) to the weir quench inlet diameter (Di) is greater than one. The weir quench, and apparatus are advantageously utilized in processes utilizing a limiting reagent.
    Type: Grant
    Filed: September 29, 2013
    Date of Patent: October 24, 2017
    Assignee: BLUE CUBE IP LLC
    Inventors: Max M. Tirtowidjojo, Hua Bai, Thomas U. Luebbe, Victor E. McMurray
  • Publication number: 20170210679
    Abstract: A feedstream comprising hydrogen and a gas selected from carbon monoxide, carbon dioxide, or a combination thereof is converted to a product mixture containing a combination of saturated and unsaturated two carbon atom and three carbon atom hydrocarbons via contact with a mixed catalyst comprising a mixed metal oxide catalyst selected from a copper oxide, copper oxide/zinc oxide, copper oxide/alumina, copper oxide/zinc oxide/alumina catalyst, a zinc oxide/chromium oxide catalyst, or a combination thereof, in admixture with a molecular sieve catalyst having a CHA, AEI, AEL, AFI, BEA, or DDR framework type, or a combination of such molecular sieves. Exemplary molecular sieve catalysts include SAPO-34, SAPO-18, SAPO-5, and Beta. Advantages include reduced production of C1 hydrocarbons, C4 and higher hydrocarbons, or both; long catalyst lifetimes; desirable conversions; and desirable proportions of C2 and C3 paraffins.
    Type: Application
    Filed: July 8, 2015
    Publication date: July 27, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Adam CHOJECKI, Davy NIESKENS, Thomas DAVIDIAN, Peter E. GROENENDIJK, Matthijs RUITENBEEK, Barry B. FISH, Max M. TIRTOWIDJOJO, Garmt R. MEIMA
  • Patent number: 9598334
    Abstract: Processes for the production of chlorinated propenes are provided. The present processes make use of 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material, alone or in combination with 1,2,3-trichloropropane. At least one dehydrochlorination is conducted in the gas phase, and is the first process step. The present processes can also generate anhydrous HCl as a byproduct that can be removed from the process and used as a feedstock for other processes, providing further time and cost savings.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: March 21, 2017
    Assignee: BLUE CUBE IP LLC
    Inventor: Max M. Tirtowidjojo
  • Patent number: 9512053
    Abstract: Processes for the production of chlorinated propenes are provided. The processes make use of 1,2-dichloropropane as a starting material and subject a feedstream comprising the same to an ionic chlorination process. At least a portion of any tri- and tetrachlorinated propanes not amenable to ionic chlorination conditions are removed from the ionic chlorination product stream, or, are subjected to chemical base dehydrochlorination step. In this way, recycle of intermediates not amenable to ionic chlorination reactions is reduced or avoided, as is the buildup of these intermediates within the process. Selectivity and, in some embodiments, yield of the process is thus enhanced.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: December 6, 2016
    Assignee: BLUE CUBE IP LLC
    Inventors: Max M. Tirtowidjojo, David S. Laitar, Barry B. Fish, Matthew L. Grandbois
  • Publication number: 20160347692
    Abstract: The present invention provides adiabatic plug flow reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors comprise one or more designs that minimize the production of by-products at a desired conversion.
    Type: Application
    Filed: July 7, 2016
    Publication date: December 1, 2016
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Thomas U. Luebbe, Thomas J. Parsons, Avani Maulik Patel, Marcus Wobser
  • Patent number: 9475739
    Abstract: Processes for the production of chlorinated propenes are provided. The present processes make use of a feedstock comprising 1,2,3-trichloropropane and chlorinates the 1,1,2,3-tetrachloropropane generated by the process prior to a dehydrochlorination step. Production of the less desirable pentachloropropane isomer, 1,1,2,3,3-pentachloropropane, is thus minimized. The present processes provide better reaction yield as compared to conventional processes that require dehydrochlorination of 1,1,2,3-tetrachloropropane prior to chlorinating the same. The present process can also generate anhydrous HCl as a byproduct that can be removed from the process and used as a feedstock for other processes, while limiting the production of waste water, thus providing further time and cost savings.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: October 25, 2016
    Assignee: BLUE CUBE IP LLC
    Inventors: Max M. Tirtowidjojo, Barry B. Fish, David S. Laitar
  • Patent number: 9475740
    Abstract: Processes for the production of chlorinated propenes are provided. The present processes make use of 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material. 1,1,1,2,2-pentachloropropane produced by the process is subjected to catalytic dehydrochlorination and build-up of the same within the process is avoided.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: October 25, 2016
    Assignee: BLUE CUBE IP LLC
    Inventors: Max M. Tirtowidjojo, David S. Laitar, Barry B. Fish, William J. Kruper, Jr.