Patent · US Active

Regeneration of oxidative dehydrogenation catalyst in a reactor

US9861976B2 · kind B2 · utility

0Cited by
4References
20Claims
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Assignee

Inventors

Key dates

Filing dateMar 1, 2017
Grant dateJan 9, 2018
Priority date—
Expiry dateMar 1, 2037

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J38/14
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Disclosed herein is a process for the regeneration of oxidative dehydrogenation (OXO-D) catalyst in an alternate or separate regeneration reactor by employing controlled steam:air and time/pressure/temperature conditions. The process avoids destruction of the catalyst, and wear/tear on an OXO-D reactor. The regenerated catalyst is an iron based oxide catalyst which can be zinc or zinc-free. The iron based oxide catalyst is regenerated in the regeneration reactor by feeding an air/steam stream over a set amount of time, preferably about 6 days to yield a regenerated OXO-D catalyst. The regenerated catalyst is activated and re-utilized to produce butadienes.

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