Patent · US Expired

Method of conducting reactions in a trickle-type reactor

US4281206A · kind A · utility

4Cited by

3References

10Claims

0Family size

Assignee

Deutsche Texaco Aktiengesellschaft · DE

Inventors

Gunter Brandes · Seevetal, DE
Johannes Wollner · Neukirchen-Vluyn, DE
Wilhelm Neier · Rheinberg, DE
Werner Webers · Dinslaken, DE

Key dates

Filing date	Jan 30, 1975
Grant date	Jul 28, 1981
Priority date	—
Expiry date	Jan 30, 1995

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2231/323
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Trickle-type fixed-bed catalytic reactions are improved, prior to starting or resuming an on-stream period, by purging air from the catalyst bed and reaction zone by downward flow of an inert gas therethrough, flooding the purged reaction zone by flowing a liquid upwardly through the catalyst bed to cover same, then removing the liquid and instituting the on-stream period by introducing gaseous and liquid reactants at the upper end of the catalyst bed to flow downwardly therethrough.

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