Aromatics production

Chemistry of hydrocarbon compounds – Plural serial diverse syntheses – With hydrocarbon recycle from later to earlier synthesis

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585312, 585314, 585408, 585415, 585469, 585640, C07C 120

Patent

active

046863125

ABSTRACT:
Disclosed is a multistage process for converting lower aliphatic oxygeanated hydrocarbon feedstock to hydrocarbon product rich in benzene, toluene and/or xylene which comprises:
contacting said oxygenated hydrocarbons in a primary stage with a medium pore shape selective acidic zeolite to an intermediate hydrocarbon product comprising predominantly aliphatic hydrocarbons;
contacting at least a portion of the aliphatic hydrocarbons from the primary stage with a secondary stage catalyst comprising gallium-promoted medium pore shape selective zeolite characterized by a constraint index within the approximate range of 1 to 12 and a silica to alumina ratio of about 20 to 100:1; thereby producing benzene, toluene and/or xylene.

REFERENCES:
patent: 4058576 (1977-11-01), Chang et al.
patent: 4180689 (1979-12-01), Davies et al.
patent: 4245130 (1981-06-01), Jones et al.
patent: 4276437 (1981-06-01), Chu
patent: 4334114 (1982-06-01), Ellis
patent: 4392989 (1983-07-01), Chu et al.
patent: 4544788 (1985-10-01), Daviduk et al.
patent: 4547612 (1985-10-01), Tabak
patent: 4642402 (1987-02-01), Jensen

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