Oxidative desulfurization and denitrogenation of petroleum oils
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 23, 2010
Grant Date -
May 10, 2007
app pub date -
Dec 21, 2006
filing date -
Nov 23, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved oxidative process that employ a robust, non-aqueous, and oil-soluble organic peroxide oxidant for effective desulfurization and denitrogenation of hydrocarbons including petroleum fuels, hydrotreated vacuum gas oil (VGO), non-hydrotreated VGO, petroleum crude oil, synthetic crude oil from oil sand, and residual oil. Even at low concentrations and without the assistance of catalysts, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks. Furthermore, the process generates a valuable organic acid by-product that is also used internally as the extractive solvent for effective removal of the oxidized sulfur and nitrogen from the hydrocarbons without the need of a final adsorption step. Novel process steps are also disclosed to substantially prevent yield loss in the oxidative process.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2006 Application Filing Year
- C10G Class
- 263 Applications Filed
- 165 Patents Issued To-Date
- 62.74 % Issued To-Date
