Patent · US Active

Modified crystalline aluminosilicate for dehydration of alcohols

US10512903B2 · kind B2 · utility

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5References
8Claims
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Key dates

Filing dateSep 24, 2015
Grant dateDec 24, 2019
Priority date
Expiry dateJan 12, 2036

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/584
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

The present invention relates to a catalyst composition comprising a modified crystalline aluminosilicate of the Framework Type FER having Si/Al framework molar ratio greater than 20 characterized in that in said modified crystalline aluminosilicate the ratio between the strong acid sites and the weak acid sites, S/W, is lower than 1.0 and having the extra framework aluminum (EFAL) content lowered to less than 10 wt % preferably 5 wt % even more preferably less than 2 wt % measured by 27 Al MAS NMR. The present invention further relates to a process for producing olefins from alcohols in presence of said catalyst composition.

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