Patent · US Expired

Electrolytic method for purifying gases

US6071401A · kind A · utility

8Cited by

7References

9Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Dieter Engel · Kelsterbach, DE
Thomas Lehmann · Langenselbold, DE
Harald Troll · Alzenau, DE

Key dates

Filing date	Apr 9, 1997
Grant date	Jun 6, 2000
Priority date	—
Expiry date	Apr 9, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F1/467
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An electrolysis cell with a fixed-bed electrode and its use for the purification of waste gases. The electrolysis cell includes a fixed-bed electrode, a counterelectrode which is separated from it and designed as a gas diffusion electrode, devices for the supply and flow-off of an electrolyte as well as for the inlet and outlet of the gas to be purified and a space associated with the counterelectrode with devices for the supply and the removal of a gas. In order to purify gas the fixed-bed electrode is operated as a trickle bed and the gas to be purified flows in cocurrent or countercurrent flow to the electrolyte. In reductive purification hydrogen is supplied to the gas diffusion electrode and in oxidative purification oxygen is used.

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