Method for reducing chloride emissions from a catalyst regenerat

Details Method for reducing chloride emissions from a catalyst regenerat Method for reducing chloride emissions from a catalyst regenerat

1996-10-03

1998-11-17

Lewis, Michael L.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

502 34, B01J 3842, B01J 2034

Patent

active

058376364

ABSTRACT:
A method is disclosed for decreasing the emissions of chlorine-containing species from a process for contacting catalyst particles with a recycle stream containing chlorine-containing species. Prior to contacting the catalyst particles with the recycle gas, an effluent stream that contains chlorine-containing species contacts the catalyst particles at sorption conditions. The catalyst particles sorb the chlorine-containing species from the effluent stream. This method captures and returns to the process the chlorine-containing species that would be lost from the process and that would need to be replaced by the injection of make-up chlorine-containing species. This method results in a significant savings in capital and operating costs of the process. This method is adaptable to many processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated.

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"Cat Reforming with In-Place Regeneration", written by W.H. Decker et al, published in the Jul. 4, 1995, issue of The Oil and Gas Journal beginning at p. 80.
Pp. 355-397 of book entitled Progress in Catalyst Deactivation, edited by J.L. Figueiredo, published by Martinus Nijhoff Publishers in Boston, Massachusetts in 1982 no month.

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