Patents by Inventor Zacheria M. George

Zacheria M. George 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).

  • Hydrodesulfurization of coke
    Patent number: 4529501
    Abstract: The extent of hydrodesulfurization of coke formed by coking bitumen is enhanced by the addition of small amounts of sodium hydroxide to the bitumen prior to coking the same.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: July 16, 1985
    Assignee: Research Council of Alberta
    Inventor: Zacheria M. George
  • Regeneration process for poisoned Claus alumina catalyst, including NaOH activation
    Patent number: 4469803
    Abstract: Poisoned catalyst is regenerated by first subjecting it to an oxidative burn-off and then soaking it in a base, preferably NaOH. The dried product is comparable in Claus activity to fresh catalyst.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: September 4, 1984
    Assignee: Alberta Research Council
    Inventor: Zacheria M. George
  • Regeneration process for poisoned claus alumina catalyst
    Patent number: 4183823
    Abstract: Poisoned alunina catalyst is removed from the reactor and washed with hot water to remove soluble sulfates. The carbon on the washed catalyst is then burned off and the product may again be washed to remove further sulfates formed during the oxidative burn-off. The activity of the catalyst thus regenerated is comparable to that of fresh alumina catalyst employed for sulfur recovery by the modified Claus process.
    Type: Grant
    Filed: September 14, 1977
    Date of Patent: January 15, 1980
    Assignee: The Research Council of Alberta
    Inventor: Zacheria M. George