Suppressing sediment formation in an ebullated bed process

Patent · Tue Jan 23 00:00:00 EST 1990

OSTI ID:6975822

Bellinger, M P; Sayles, S M

This patent describes an improved continuous process for treating a fluid hydrocarbon feedstock with a hydrogen-containing gas at elevated catalytic reaction temperatures and pressures in the presence of a bed of hydrocracking catalyst. The process comprising introducing the hydrogen-containing gas and feedstock into the lower end of a generally vertical catalyst containing reaction vessel wherein the catalyst is placed in random motion within the fluid hydrocarbon whereby the catalyst bed is expanded to a volume greater than its static volume, wherein the mixture of feedstock, gas and catalyst constitutes a turbulent zone from which zone aged, carbon containing catalyst is removed and fresh hydrocracking catalyst reduced in carbon is added. The upper portion of the turbulent zone is defined by an interface with a substantially catalyst depleted zone from which zone hydrocracked product is removed.

• Assignee: Texaco, Inc., White Plains, NY
• Patent Number(s): US 4895639; A
• Application Number: PPN: US 7-321112A
• OSTI ID: 6975822
• Resource Relation: Patent File Date: 9 Mar 1989
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HYDROCARBONS
CATALYTIC CRACKING
ACTIVATED CARBON
CATALYSTS
CHEMICAL FEEDSTOCKS
CHEMICAL REACTION KINETICS
CHEMICAL REACTORS
MINIMIZATION
PACKED BED
SEDIMENTS
TECHNOLOGY ASSESSMENT
ADSORBENTS
CARBON
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
KINETICS
NONMETALS
ORGANIC COMPOUNDS
PYROLYSIS
REACTION KINETICS
THERMOCHEMICAL PROCESSES
020400* - Petroleum- Processing
400201 - Chemical & Physicochemical Properties