Title:
原料炭化水素流からの汚染物質の抽出酸化方法
Document Type and Number:
Japanese Patent JP2006525401
Kind Code:
A
Abstract:
A process for the extractive oxidation of contaminants from raw hydrocarbon streams rich in heteroatomic polar compounds is described, the said process involving the extractive oxidation of sulfur and nitrogen compounds from said streams, the said process comprising treating said streams with a peroxide solution/organic acid couple, the weight percent of the peroxide solution and organic acid based on raw hydrocarbon being at least 3 for both the peroxide and organic acid solution, under an acidic pH, atmospheric or higher pressure and ambient or higher temperature. As a result of the reaction, the oxidized heteroatomic compounds, having strong affinity for the aqueous phase, are extracted into said aqueous phase, while the oxidized hydrocarbon is neutralized, water washed and dried, the resulting end product being a hydrocarbon stream from which have been removed 88.1 wt % or more of total nitrogen compounds and basic nitrogen up to 99.1 wt %, both calculated as mass contents, total Sulfur 23.3% removal, and removal of total olefins is limited to 6.5 weight %. The treated product is further directed to any refining process.
Inventors:
De Souza, Vladimir, Ferrads
Application Number:
JP2006506227A
Publication Date:
November 09, 2006
Filing Date:
May 06, 2004
Export Citation:
Assignee:
Petroleo Brasileiro Sociedad Anonima-Petrobras
International Classes:
C10G27/04; C10G17/04; C10G27/12; C10G45/00; C10G67/08; C10G67/12; C10G69/04
Domestic Patent References:
| JP2002322483A | 2002-11-08 |
Foreign References:
| WO2002062926A2 | 2002-08-15 | |||
| WO2002018518A1 | 2002-03-07 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yukihiro Ikeda
Kajiwara Saiko
Hajime Asamura
Yukihiro Ikeda
Kajiwara Saiko