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US 5,780,001 AGranted
Sulfur absorbents
AssigneePhillips Petroleum Company
InventorsGyanesh P. Khare, Ralph E. Bonnell
Life of this patent
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Abstract
A composition and method of making a strength enhanced composition are described. The composition comprises zinc oxide, silica and colloidal oxide solution. The colloidal oxide solution is utilized as a binding agent to provide a strength enhanced absorbent composition that can be utilized in an absorption process for the purpose of removing sulfur contaminants from fluid streams.
Claims14
A process for absorbing hydrogen sulfide from a fluid stream, said process comprising:
- (a) mixing zinc oxide and silica to provide a dry homogeneous mixture;
- (b) providing said dry homogeneous mixture within a pan of a tumbling agglomerator;
- (c) spraying a colloidal oxide solution, wherein said colloidal oxide solution comprises particles of an oxide compound dispersed in a liquid medium said oxide compound comprises colloidal-size particles having a median particle size in a range from about 50 angstroms to about 10,000 angstroms upon said dry homogeneous mixture while rotating said pan to thereby form pellets;
- (d) drying said pellets to provide dried pellets having a crush strength of at least about 5 lb.sub.f ;
- and
- (e) contacting said dried pellets with a fluid stream containing hydrogen sulfide under conditions suitable for absorbing hydrogen sulfide.
3 more elements
A process for absorbing hydrogen sulfide from a fluid stream, said process comprising:
- (a) mixing zinc oxide and silica to provide a dry homogeneous mixture;
- (b) providing said dry homogeneous mixture within a pan of a tumbling agglomerator;
- (c) spraying a colloidal oxide solution, wherein said colloidal oxide solution comprises particles of an oxide compound dispersed in a liquid medium said oxide compound comprises colloidal-size particles having a median particle size in a range from about 50 angstroms to about 10,000 angstroms upon said dry homogeneous mixture while rotating said pan to thereby form pellets;
- (d) drying said pellets to provide dried pellets having a crush strength of at least about 5 lb.sub.f ;
- (e) calcining said dried pellets to provide calcined pellets having a crush strength of at least about 5 lb.sub.f ;
- and
- (f) contacting said calcined pellets with a fluid stream containing hydrogen sulfide under conditions suitable for absorbing hydrogen sulfide.
4 more elements
Dependencies are inferred from the claim text.