Patents by Inventor W. Patrick Hegarty

W. Patrick Hegarty 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: 4632818
    Abstract: A process and system are set forth for improving the recovery of sulfur from an oxygen-enriched Claus process by introducing a liquid sulfur stream into the reaction furnace zone to moderate oxygen-induced high temperatures which allow oxygen-enrichment and attendant throughput in the Claus process to higher levels than heretobefore practiced and alternatively to quench the reaction furnace effluent to maintain a hydrogen sulfide dioxide ratio of 2:1.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: December 30, 1986
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Michael S. K. Chen, W. Patrick Hegarty, Dipak J. Sampat