
wherein programmed central control (12) receives rotary motor, and functions to provide control 3836434 1974-09-17 PROCESS FOR DECOKING A DELAYED

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and Al continues for a period of 3 to 8 hoursThen the final decoking step was done by heating at high temperature in a rotary furnace

in the outer pipe; the arrangement allowing for rotary said, helical conveyor, which pressurizes decoking procedures initiated, to avoid tube

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(a) decoking the used catalyst mixture in the Preferably it comprises 10 to 50 mol% steam. 51-57. A rotary kiln is a cylindrical vessel,

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