The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2009
Filed:
Aug. 31, 2006
Oscar René Chamberlain Pravia, Rio de Janeiro, BR;
Henrique Soares Cerqueira, Rio de Janeiro, BR;
Elizabeth M. Moreira, Rio de Janeiro, BR;
Cláudia Maria DE L. Alvarenga Baptista, Rio de Janeiro, BR;
Jefferson Roberto Gomes, Rio de Janeiro, BR;
Paulo César Peixoto Bugueta, Rio de Janeiro, BR;
Oscar René Chamberlain Pravia, Rio de Janeiro, BR;
Henrique Soares Cerqueira, Rio de Janeiro, BR;
Elizabeth M. Moreira, Rio de Janeiro, BR;
Cláudia Maria de L. Alvarenga Baptista, Rio de Janeiro, BR;
Jefferson Roberto Gomes, Rio de Janeiro, BR;
Paulo César Peixoto Bugueta, Rio de Janeiro, BR;
Petroleo Brasileiro S.A., Rio de Janeiro, BR;
Abstract
A process for reducing the naphthenic acidity of petroleum oils, or their liquid fractions, is described, the process comprising a thermal treatment of the petroleum oils, or their liquid fractions, in the presence of an adsorbent the surface of which is covered by high molecular weight carbon compounds. Preferred adsorbents are the spent or coked FCC catalysts.