Method of using spent cracking catalyst as a waste material absorbant
AssigneeMobile Companies, Inc.
InventorRobert Habermehl
Life of this patent
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Abstract
A method of using spent silica-alumina catalyst previously used in a fluid-bed type catalytic cracking process by contacting a volume of particles of the spent catalyst with a liquid and allowing the spent catalyst particles to absorb at least a portion of the liquid. The method is particularly useful in the removal of hazardous liquid spills.
Claims5
A method of collecting a volume of liquid comprising the step of (a) bringing a predetermined volume of particles of untreated spent silica-alumina catalyst previously used in a fluid-bed type catalytic cracking process into intimate contact with a liquid and (b) allowing the particles to remain in contact with the liquid for a time sufficient for the particles to absorb a portion of the liquid;
- and (c) collecting said particles having said portion of said liquid absorbed therein, said predetermined volume of collected particles forming a nonflowable substantially solid mass.
A method of removing hazardous liquid spills comprising the steps of:
- (a) contacting the hazardous liquid spill with a predetermined volume of particles of untreated spent silica-alumina catalyst previously used in a fluid-bed type catalytic cracking process;
- (b) allowing the particles to remain in contact with the hazardous liquid spill for a time sufficient to permit the particles to absorb at least a portion of the hazardous liquid;
- and
- (c) collecting the particles having hazardous liquid absorbed therein, said predetermined volume of collected particles forming a nonflowable substantially solid mass.
Dependencies are inferred from the claim text.