Patent · US Active

Process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed

US9422218B2 · kind B2 · utility

0Cited by

19References

6Claims

0Family size

Assignee

BASF SE

Inventors

Volker Schliephake · Schifferstadt, DE
Klaus Bott · Ludwigshafen, DE
Rolf-Dieter Becher · Mannheim, DE
Klaus Joachim Mueller-Engel · Blankenloch, DE
Jochen Petzoldt · Mannheim, DE
Ulrich Cremer · Mannheim, DE
Andreas Raichle · Ludwigshafen, DE

Key dates

Filing date	Jun 12, 2015
Grant date	Aug 23, 2016
Priority date	—
Expiry date	Jun 12, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2208/00761
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed, in which a heterogeneously catalyzed partial gas phase oxidation of an organic compound had been performed beforehand in a preceding fixed catalyst bed comprising Mo-comprising multielement oxide active compositions to form a steam-comprising product gas mixture, in which, before the recharge, solid deposit which had been deposited on the tube inner walls and comprises molybdenum oxide and/or molybdenum oxide hydrate is brushed away with the aid of a brush.

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