PRODUCTION OF AROMATIC HYDROCARBONS FROM METHANE

• Main Authors: NEERAJ SANGAR, LARRY L. IACCINO, ELIZABETH L. STAVENS
• Format: Patent
• Language: English
• Published: 15.06.2012
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CRACKING HYDROCARBON OILS; FUELS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; LUBRICANTS; METALLURGY; MINERAL WAXES; ORGANIC CHEMISTRY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; 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; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

IN A PROCESS FOR CONVERTING METHANE TO HIGHER HYDROCARBONS INCLUDING AROMATIC HYDROCARBONS, A FEED (25) CONTAINING METHANE IS CONTACTED WITH A DEHYDROCYCLIZATION CATALYST IN A REACTION ZONE UNDER CONDITIONS EFFECTIVE TO CONVERT SAID METHANE TO AROMATIC HYDROCARBONS. A FIRST PORTION OF THE CATALYST IS TRANSFERRED FROM THE REACTION ZONE TO A HEATING ZONE, WHERE THE FIRST CATALYST PORTION IS HEATED BY CONTACTING THE CATALYST WITH HOT COMBUSTION GASES GENERATED BY BURNING A SUPPLEMENTAL SOURCE OF FUEL. THE HEATED FIRST CATALYST PORTION IS THEN RETURNED TO THE REACTION ZONE.