Production of high octane gasoline

Patent · Tue Jun 30 04:00:00 EDT 1987

OSTI ID:6353516

Fischer, R H; Huang, Y Y; La Pierre, R B; Varghese, P

This patent describes a process for the production of a high octane gasoline having an octane number not less than 87 (RON+0), from a substantially dealkylated hydrocarbon feedstock comprising not less than 50 vol % aromatic content, an API gravity between 5 and 25, a nitrogen content between 50 and 650 ppm, and a hydrogen content between 8.9 and 12.5 wt %, comprising: hydrotreating the substantially dealkylated feedstock in the presence of a hydrotreating catalyst comprising a hydrogenation/dehydrogenation metal on a support, under hydrotreating conditions, including a pressure not greater than 1200 psig, LHSV between 0.25 and 5, temperature between 600/sup 0/ and 800/sup 0/F; contacting the hydrotreated substantially dealkylated feedstock with a crystalline silicate zeolite having a Constraint Index less than 2, the contacting being conducted at hydrogen partial pressure between 600 and 1000 psi, temperatures not less than 700/sup 0/F, LHSV between 0.25 and 2.5, and a conversion per pass to 385/sup 0/F end point gasoline no greater than 50% to form a product comprising a 385/sup 0/F end point gasoline and an unconverted, upgraded bottom fraction; and passing the unconverted, upgraded bottom fraction to an FCC unit for further processing.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4676887
• OSTI ID: 6353516
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKANES
ANTIKNOCK RATINGS
API GRAVITY
AROMATICS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CRACKING
DEALKYLATION
DECOMPOSITION
DEHYDROGENATION
DENSITY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASOLINE
HIGH TEMPERATURE
HYDROCARBONS
HYDROCRACKING
HYDROGEN
HYDROGENATION
LIQUID FUELS
MEDIUM PRESSURE
METALS
NITROGEN
NONMETALS
OCTANE
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PYROLYSIS
QUANTITY RATIO
SYNTHESIS
THERMOCHEMICAL PROCESSES