Patents Assigned to Schoofs, Inc.
  • Claus process improvement
    Patent number: 4508699
    Abstract: An improvement in the Claus Process for producing sulfur by reaction of hydrogen sulfide with sulfur dioxide at elevated temperature in the presence of a porous catalyst is described. The improvement lies in employing a porous catalyst, preferably alumina, having a large surface area at least 40% of which is provided by pores having diameters over the range 40 A.degree. to 150 A.degree. or having at least 20% of its surface area provided by pores having diameters over the range 80 A.degree. to 150 A.degree..
    Type: Grant
    Filed: January 13, 1984
    Date of Patent: April 2, 1985
    Assignee: Schoofs, Inc.
    Inventor: Richard J. Schoofs