Patents by Inventor Christopher G. Meller

Christopher G. Meller 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).

  • Staged countercurrent oxidation
    Patent number: 7485746
    Abstract: A process for oxidation with oxygen of at least one aromatic hydrocarbon having oxidizable, substituents that maximizes the utilization of oxygen without reduction in the quality of the carboxylic acid products produced by means of a stagewise countercurrent oxidation system is disclosed.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: February 3, 2009
    Assignee: BP Corporation North America Inc.
    Inventors: Frank G. Belmonte, David L. Sikkenga, Olusola Sunday Ogundiran, Kenneth J. Abrams, Linus Kai-Wah Leung, Christopher G. Meller, Dale A. Figgins, Allen B. Mossman
  • Process for the production of high purity aromatic carboxylic acids using a benzoic acid and water solvent for oxidation and purification
    Patent number: 7465824
    Abstract: A process is disclosed for producing at least one high purity aromatic carboxylic acid by oxidizing an aromatic feedstock with oxygen in a reaction medium comprising the aromatic feedstock, a promoter, a heavy metal catalyst, and a solvent which comprises benzoic acid and water to produce a reactor effluent wherein substantially all of the aromatic carboxylic acid produced remains in solution; and then hydrogenating the reactor effluent in the presence of a catalyst and hydrogen. This process efficiently and effectively produces high purity aromatic carboxylic acids by utilizing a common solvent for both oxidation and purification and eliminating the need for intermediate process steps and equipment.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: December 16, 2008
    Assignee: BP Corporation North America Inc.
    Inventors: Carolyn E. Schmit, David L. Sikkenga, Christopher G. Meller
  • Process for the Production of High Purity Aromatic Carboxylic Acids Using a Benzoic Acid and Water Solvent for Oxidation and Purification
    Publication number: 20080194866
    Abstract: A process is disclosed for producing at least one high purity aromatic carboxylic acid by oxidizing an aromatic feedstock with oxygen in a reaction medium comprising the aromatic feedstock, a promoter, a heavy metal catalyst, and a solvent which comprises benzoic acid and water to produce a reactor effluent wherein substantially all of the aromatic carboxylic acid produced remains in solution; and then hydrogenating the reactor effluent in the presence of a catalyst and hydrogen. This process efficiently and effectively produces high purity aromatic carboxylic acids by utilizing a common solvent for both oxidation and purification and eliminating the need for intermediate process steps and equipment.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 14, 2008
    Applicant: BP Corporation North America Inc.
    Inventors: Carolyn E. Schmit, David L. Sikkenga, Christopher G. Meller