Methanol-gas saturator for catalytic conversion system

Patent · Tue Feb 28 04:00:00 EST 1989

OSTI ID:6240855

Fremuth, D R.A.; Rogers, A E; Zahner, J C

This patent describes a process for catalytically converting methanol to gasoline boiling range hydrocarbons by contacting methanol in a gaseous stream with an acid crystalline zeolite catalyst of the ZSM-5 type in a reaction system comprising: feeding a heated liquid methanol stream to a multi-phase gas-liquid saturator contact unit at an inlet temperature substantially below the methanol feedstock boiling point under superatmospheric process pressure; contacting the methanol feedstock in a contact tower with sufficient compressed recycle gas from the reactor system to partially vaporize methanol feedstock, thereby forming a gaseous methanol-recycle stream; heating and introducing the gaseous methanol-recycle stream directly to the ZSM-5 catalytic reactor system to convert methanol to gasoline hydrocarbon product and a gaseous by-product; cooling reactor system effluent in heat exchange relationship with the liquid methanol stream in step (a) to heat the liquid methanol and recover liquid hydrocarbon product; separating gaseous by-product from the liquid hydrocarbon product; and compressing and recycling the gaseous by-product.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4808764
• OSTI ID: 6240855
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALCOHOLS
BOILING POINTS
CATALYSTS
CHEMICAL COMPOSITION
COMPRESSION
COOLING
ENERGY SOURCES
EVAPORATION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GASOLINE
HEATING
HYDROCARBONS
HYDROXY COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MATERIALS
METHANOL
MINERALS
NATURAL GAS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PRESSURIZING
PROCESSING
PRODUCTION
RECYCLING
SATURATION
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ZEOLITES