Patent · US Active

Method for treating spent caustic to recover caustic and sulphur by a bioelectrochemical process

US11174563B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

Indian Oil Corporation Limited · IN

Inventors

Mahendara Pratap Singh · Faridabad, IN
Manoj Kumar · Barwala, IN
Srikanth Sandipam · Faridabad, IN
Amardeep Singh · Houston, US
Dheer Singh · Faridabad, IN
Umish Srivastava · Faridabad, IN
Suresh Kumar Puri · Faridabad, IN
Sanjiv Kumar Mazumdar · Faridabad, IN
Sankara Sri Venkata RAMAKUMAR · Faridabad, IN

Key dates

Filing date	Sep 29, 2018
Grant date	Nov 16, 2021
Priority date	—
Expiry date	Oct 7, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/37
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The present invention relates to an apparatus and method for bio-assisted treatment of spent caustic obtained from hydrocarbon and gas processing installations. The present invention also relates to method for recovery of caustic and recovery of sulfur from spent caustic. According to present invention, the sulfide removal is about 96% and the sulphur formation and deposition on the electrode lies in range of 72±8%.

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