Adding Disparate Non-gaseous Material To Feed Patents (Class 201/20)
  • Process for producing low sulfur coke
    Patent number: 4007092
    Abstract: A low sulfur coke product is obtained in an integrated fluid coking and gasification process in which an oxygen-containing gas is introduced into the upper portion of the gasification zone and steam is introduced into the lower portion of the gasification zone. The desired degree of coke desulfurization is controlled by controlling the thickness of the gasifier coke layer on the gaseous reactor leaving solids per pass.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: February 8, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: William J. Metrailer, Walter Weissman
  • Desulfurization of coke
    Patent number: 3933596
    Abstract: Coke is desulfurized by calcining coke at a temperature of 1600.degree. - 2200.degree. F. in admixture with sodium carbonate, followed by direct contact with phosgene or a mixture of carbon monoxide and chlorine at a temperature of 1200.degree. - 1800.degree. F. to produce coke having sulfur contents of less than 0.5 percent.
    Type: Grant
    Filed: April 1, 1974
    Date of Patent: January 20, 1976
    Assignee: The Lummus Company
    Inventors: Raymond H. Long, Morgan C. Sze