Additive to maximize GLP and propene suitable for use in low-severity operations of a fluid catalytic cracking unit and its preparatory process

A process for the preparation and modification of additives, with a zeolite base and a high silica alumina ratio (SAR) like the ZSM-5, to increase the yield of propene and LPG in low severity FCC operations, that seeks to maximize the production of medium-distillates with low aromaticity and to mini...

Full description

Saved in:
Bibliographic Details
Main Authors LAU LAM YIU, ALVARENGA BAPTISTA CLAUDIA MARIA DE LACERDA, BASTIANI RAQUEL
Format Patent
LanguageEnglish
Published 06.04.2010
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
CRACKING HYDROCARBON OILS
FUELS
LUBRICANTS
METALLURGY
MINERAL WAXES
PEAT
PERFORMING OPERATIONS
PETROLEUM, GAS OR COKE INDUSTRIES
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION
RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES
REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS
REFORMING OF NAPHTHA
TECHNICAL GASES CONTAINING CARBON MONOXIDE
THEIR RELEVANT APPARATUS
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:A process for the preparation and modification of additives, with a zeolite base and a high silica alumina ratio (SAR) like the ZSM-5, to increase the yield of propene and LPG in low severity FCC operations, that seeks to maximize the production of medium-distillates with low aromaticity and to minimize molecular cracking in the LCO range. The additives involved guarantee an increase in light olefin yields without altering the yield or the quality of the LCO produced. The innovative process includes surprising actions from rare earths (RE) on the active sites of zeolite, that at once partially block their pores and, in this way, make molecular cracking in the medium-distillate range difficult, which preferably occur at low reaction temperatures and keeps the remaining sites quite active. These sites are sufficiently active to crack smaller molecules in the gasoline range, guaranteeing an overall increase in light olefins and allowing the additive involved to be used industrially in operations to maximize medium-distillates in an FCC unit. This new additive may be obtained by modifying any commercial ZSM-5 zeolite additive.
Bibliography:Application Number: US20070714117