Patent · US Active

Regeneration of alkali metal reagent

US8404106B2 · kind B2 · utility

0Cited by

41References

20Claims

0Family size

Assignee

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

Jorge Soto · Sewell, US
Daniel P. Leta · Flemington, US
Lu Han · Herndon, US
Walter D. Vann · Nazareth, US
Mark A. Greaney · Upper Black Eddy, US
James R. Bielenberg · Easton, US
Paul D. Oldenburg · Easton, US
Jonathan M. McConnachie · Annandale, US
Leo D. Brown · Baton Rouge, US
William C. Baird, Jr. · Baton Rouge, US
Roby Bearden, Jr. · Baton Rouge, US

Key dates

Filing date	Dec 14, 2010
Grant date	Mar 26, 2013
Priority date	—
Expiry date	Sep 26, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2256/24
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

After desulfurizing a hydrocarbon feedstream using an alkali metal reagent, the hydrocarbon feedstream can include particles of spent alkali metal salts. The spent alkali metal salts can be separated from the hydrocarbon feedstream and regenerated to form an alkali metal reagent, such as a alkali hydroxide or alkali sulfide. The regeneration process can pass through an intermediate stage of forming an alkali carbonate by successive reactions with carbon dioxide and calcium oxide. The calcium oxide can also be regenerated.

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