Sulfur Containing Compound Sorbed Patents (Class 95/135)
Hydrogen sulfide sorbed (Class 95/136)
Sulfur dioxide or sulfur trioxide sorbed (Class 95/137)
  • Substituted stannosilicates, their preparation and use as natural gas purification agents (C-2668)
    Patent number: 5264193
    Abstract: Natural gas containing hydrogen sulfide is treated at well-head pressures by contact with a crystalline substituted or unsubstituted stannosilicate for removal of hydrogen sulfide.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: November 23, 1993
    Assignee: Exxon Research and Engineering Company
    Inventors: Edward W. Corcoran, Jr., David E. W. Vaughan, Paul E. Eberly, Jr., Killian D. Efird
  • Fluidizable zinc titanate materials with high chemical reactivity and attrition resistance
    Patent number: 5254516
    Abstract: Highly durable and chemically reactive zinc titanate materials are prepared in a particle size range of 50 to 400 .mu.m suitable for a fluidized-bed reactor for removing reduced sulfur species in a gaseous form by granulating a mixture of fine zinc oxide and titanium oxide with inorganic and organic binders and by optional additions of small amounts of activators such as CoO and MoO.sub.3 ; and then indurating it at 800.degree. to 900.degree. C. for a time sufficient to produce attrition-resistant granules.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: October 19, 1993
    Assignee: Research Triangle Institute
    Inventors: Raghubir P. Gupta, Santosh K. Gangwal, Suresh C. Jain