Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2004-05-19
2010-06-15
Griffin, Walter D (Department: 1797)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C208S113000, C208S146000, C208S147000, C208S148000, C208S149000, C208S063000, C208S064000, C208S065000, C208S066000, C208S067000, C208S070000, C208S072000, C208S073000, C208S074000, C208S075000, C208S049000, C208S076000, C208S077000, C208S078000, C208S079000, C208S080000, C422S212000, C422S214000, C422S147000, C422S139000
Reexamination Certificate
active
07736491
ABSTRACT:
A process for the fluid catalytic cracking of mixed hydrocarbon feeds from different sources is described, such as feeds A and B of different crackability, the process being especially directed to obtaining light fractions such as LPG and comprising injecting feed A in the base of the riser reactive section and feed B, of lower crackability, at a height between 10% and 80% of the riser, with feed B comprising between 5% and 50% of the total processed feed. The process requires that the feeds present differences in the contaminant content, improved dispersion of feeds A and B and feed B injection temperature same or higher than that of feed A.
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“Increase Gasoline Octane and Light Olefin Yield with ZSM-5”, vol. 5, Issue 5—1999 Copyright Engelhard Corporation.
Baptista Claudia Maria de Lacerda Alvarenga
Cerqueira Henrique Soares
Sandes Emanuel Freire
Griffin Walter D
Nguyen Huy-Tram
Petroleo Brasileiro S.A. - Petrobras
Sughrue & Mion, PLLC
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