Patent · US Active

Fibrous substrate-based hydroprocessing catalysts and associated methods

US8877670B2 · kind B2 · utility

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1References
6Claims
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Key dates

Filing dateAug 7, 2013
Grant dateNov 4, 2014
Priority date—
Expiry dateAug 7, 2033

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J2229/64
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Catalysts are disclosed comprising fibrous substrates having silica-containing fibers with diameters generally from about 1 to about 50 microns, which act effectively as “micro cylinders.” Such catalysts can dramatically improve physical surface area, for example per unit length of a reactor or reaction zone. At least a portion of the silica, originally present in the silica-containing fibers of a fibrous material used to form the fibrous substrate, is converted to a zeolite (e.g., having a SiO2/Al2O3 ratio of at least about 150) that remains deposited on these fibers. The fibrous substrates possess important properties, for example in terms of acidity, which are useful in hydroprocessing (e.g., hydrotreating or hydrocracking) applications.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.