Patent · US Active

Device and method for the flexible use of electricity

US10337110B2 · kind B2 · utility

0Cited by

26References

20Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Georg Markowz · Alzenau, DE
Imad Moussallem · Hanau, DE
Rudiger Schutte · Scheinfeld, DE
Jurgen Lang · Ludwigsburg, DE

Key dates

Filing date	Nov 28, 2014
Grant date	Jul 2, 2019
Priority date	—
Expiry date	Oct 23, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25B15/02
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

An apparatus for chlor-alkali electrolysis, comprising a cathode half-cell, an oxygen-consuming electrode arranged therein, a conduit for supply of gaseous oxygen to the cathode half-cell and a conduit for purging the cathode half-cell with inert gas, enables the flexible use of power by a method in which chlorine is produced in the apparatus by chlor-alkali electrolysis, wherein, when power supply is low, the oxygen-consuming electrode is supplied with gaseous oxygen, and oxygen is reduced at the oxygen-consuming electrode at a first cell voltage, and when power supply is high, the oxygen-consuming electrode is not supplied with any oxygen, and hydrogen is generated at the cathode at a second cell voltage which is higher than the first cell voltage.

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