Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural parallel stages of chemical conversion
Patent
1988-10-31
1990-04-24
Konopka, Paul E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural parallel stages of chemical conversion
208120, 502 25, 502 26, 502 55, 585408, C10G 5700, C10G 1105, B01J 2938, B01J 3864
Patent
active
049197908
ABSTRACT:
A method for hydrocarbon dewaxing which utilizes a reactivated acidic zeolite catalyst deactivated from MTG processing is disclosed. The deactivated MTG catalyst is contacted with a reactivation-effective amount of an alkali metal carbonate and/or an alkaline earth metal carbonate to reactivate the catalyst. The catalyst is, thereafter, converted to the catalytically active form. The catalyst is then steamed at a temperature and for a time period sufficient to reduce its alpha value to a level which is substantially equal to that of a fresh hydrocarbon dewaxing acidic zeolite catalyst. The reactivated catalyst is than used for catalyzing hydrocarbon dewaxing processes.
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Absil Robert P. L.
Chang Clarence D.
Chu Cynthia T-W.
Klocke Donald J.
Keen Malcolm D.
Konopka Paul E.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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