PROCESS FOR FLUID CATALYTIC CRACKING OF HYDROCARBON FEEDSTOCKS WITH HIGH LEVELS OF BASIC NITROGEN
摘要
<p>A process is described for fluid catalytic cracking of hydrocarbons with high levels of basic nitrogen, where hydrocarbon feedstocks A and B with different levels of basic nitrogen are injected in a segregated fashion, into different risers of a multiple riser FCCU that possesses at least two risers. The injection of the feedstocks is made in such a way that feedstock A, to be injected in the riser with greater volume - main riser (7) - possessing a level of basic nitrogen at least 200 ppm lower than the level of feedstock B to be injected into the riser with lower volume - secondary riser (8).</p>
申请公布号
WO2004039921(A1)
申请公布日期
2004.05.13
申请号
WO2003GB04664
申请日期
2003.10.29
申请人
PETROLEO BRASILEIRO S.A. - PETROBRAS;BENSON, JOHN, EVERETT
发明人
DE LACERDA, CLAUDIA, MARIA;MOREIRA, ELIZABETH, MARQUES;CERQUEIRA, HENRIQUE, SOARES