Patent · US Active

Low pressure stripping in a gas purification process and systems thereof

US8470077B2 · kind B2 · utility

2Cited by

6References

11Claims

0Family size

Assignee

ALSTOM Technology Ltd · CH

Inventors

Sanjay Kumar Dube · Knoxville, US
Daniel Nicolaus Secundus Mattstedt · Hamburg, DE
Joseph P. Naumovitz · Lebanon, US

Key dates

Filing date	Nov 17, 2011
Grant date	Jun 25, 2013
Priority date	—
Expiry date	Nov 17, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02C20/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Processes for operating an ammonia stripper at a low pressure in a gas purification system include providing a first side-draw stream from the ammonia stripper; heating the first side-draw stream with a second side-draw stream from a regenerator; providing a stripper offgas stream from the ammonia stripper to a stripper overhead condenser; and utilizing the stripper offgas stream as a heat source for a regenerating system fluidly coupled to the stripper overhead condenser. Also disclosed are systems for implementing the processes.

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