Extended contact time riser

A riser includes a housing in communication with a entry conduit and an exit conduit. The housing is defined by a holdup chamber having a volume of between 1133 liters and 45307 liters. The riser is designed to receive a hydrocarbon feed and a catalyst. An apparatus for fluid catalytic cracking incl...

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Bibliographic Details
Main Authors LIPPMANN, MATTHEW, MARK, SCHNAITH, WALKER, PATRICK D
Format Patent
LanguageChinese
English
Published 16.01.2015
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
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Summary:A riser includes a housing in communication with a entry conduit and an exit conduit. The housing is defined by a holdup chamber having a volume of between 1133 liters and 45307 liters. The riser is designed to receive a hydrocarbon feed and a catalyst. An apparatus for fluid catalytic cracking includes a riser in fluid communication with a reactor vessel. A hydrocarbon feed stream and a catalyst travel through a first section of the riser at a first velocity of between 1.5 m/sec to 10 m/sec and through a second section of the riser at a second velocity of more than 15 m/sec. A process for fluid catalytic cracking uses a riser with a holdup chamber. A hydrocarbon feed and a catalyst decrease in velocity in the holdup chamber to between 1.5 m/sec and 10 m/sec.
Bibliography:Application Number: TW20140118299