Endothermic hydrocarbon upgrading process

Patent · Tue Jul 09 04:00:00 EDT 1991

OSTI ID:5794486

Harandi, M N; Owen, H

This patent describes a process for upgrading aliphatic hydrocarbons to aromatic hydrocarbons. It comprises burning a hydrogen-deficient fuel under oxygen-deficient conditions to evolve a hot flue gas containing essentially no oxygen; providing an aromatization reaction zone containing a zeolite catalyst; directly transferring a quantity of thermal energy from the hot flue gas to the aromatization reaction zone by flowing hot flue gas through the aromatization reaction zone, the quantity of thermal energy being sufficient to supply the endothermic heat of reaction to aromatize at least a portion of the aliphatic feedstream; contacting an aliphatic hydrocarbon feedstream with the zeolite catalyst under primary conversion conditions in the aromatization reaction zone to evolve an aromatization reaction zone effluent stream containing aromatics; withdrawing the aromatization reaction zone effluent stream from the aromatization reaction zone; separating the aromatization reaction zone effluent stream into a product stream, a secondary conversion feedstream comprising CO, CO{sub 2}, and H{sub 2} and a stream containing C{sub 3}-C{sub 5} aliphatics; and charging the secondary conversion feedstream.

• Assignee: Mobil Oil Corp., Fairfax, VA (United States)
• Patent Number(s): US 5030783; A
• Application Number: PPN: US 7-569309
• OSTI ID: 5794486
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
10 SYNTHETIC FUELS
100200 -- Synthetic Fuels-- Production-- (1990-)
AROMATICS
AROMATIZATION
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
FLUE GAS
FUELS
GASEOUS WASTES
HYDROCARBONS
INDUSTRIAL PLANTS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
PETROLEUM REFINERIES
PROCESSING
PYROLYSIS
REFINING
SILICATE MINERALS
SYNTHETIC FUELS
THERMAL CRACKING
THERMOCHEMICAL PROCESSES
WASTES
ZEOLITES