Mineral oils: processes and products – Chemical conversion of hydrocarbons – Reforming
Patent
1999-12-08
2000-11-28
Griffin, Walter D.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Reforming
502 34, 502 35, 502 38, 502 56, 208134, 208139, C10G 35085
Patent
active
061530913
ABSTRACT:
A method is disclosed for decreasing the emissions of chlorine-containing species from a moving bed process for regenerating spent catalyst particles with a recycle gas stream. A recycle gas stream contacts spent catalyst particles at regeneration conditions, thereby producing a flue gas stream. The flue gas stream which contains chlorine-containing species contacts spent catalyst particles at sorption conditions. The spent catalyst particles sorb the chlorine-containing species from the flue gas stream, thereby producing the recycle gas stream. A portion of the recycle gas stream is vented from the process. 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 in a moving bed.
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Robinson Delmar W.
Sechrist Paul A.
Griffin Walter D.
Moore Michael A.
Preisch Nadine
Spears Jr. John F.
Tolomei John G.
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