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:
Apr. 23, 2019
Filed:
Oct. 03, 2017
Petroleo Brasileiro S.a.—petrobras, Rio de Janeiro, RJ, BR;
Jose Antonio Vidal Vieira, Rio de Janeiro, BR;
Vitor Loureiro Ximenes, Rio de Janeiro, BR;
Carolina Ludwig Quintani, Rio de Janeiro, BR;
Marcio De Figueiredo Portilho, Rio de Janeiro, BR;
Roberto Ricardo Rangel, Rio de Janeiro, BR;
PETRÓLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro, BR;
Abstract
The present invention describes a process for purifying biodiesel without using a filter aid, in which purification of the biodiesel takes place by a sequence of washing operations after the reaction section, with stirring that is sufficiently vigorous to assist in the transformation of the molecules of esterified steryl glycosides, in order to convert them to a chemical form that can be removed by the process.