Abstract: A process is described for hydroconversion of a mixture of organic oils of different origins in a conventional hydrotreatment unit, constituted by at least two catalyst beds, under moderately severe process conditions to obtain diesel fuel oil. The process includes injection of a stream of oil of animal or plant origin, with independently adjusted flow rates, from the second catalyst bed of the hydrotreatment unit onwards, in accordance with the variations in temperature observed in each of the catalyst beds after the first bed. The process is applicable to conventional hydrotreatment units, and makes it possible to overcome the effects of the highly exothermic nature of hydroconversion reactions in oils of animal and/or plant origin in hydrotreatment process for obtaining specified diesel fuel oil.
Type:
Application
Filed:
April 26, 2007
Publication date:
December 10, 2009
Applicant:
PETROLEO BRAISLEIRO S.A. - PETROBRAS
Inventors:
Jefferson Roberto Gomes, Raissa Maria Cotta Ferreira da Silva, Rogerio Oddone, Adriana De Souza Ferreira, Nelmo Furtado Fernandes