| 简介 |
“ADDITIVE FOR the REDUCTION OF EMISSIONS DE NOx OF GASES OF COMBUSTION OF UNITS OF FCC, PROCESS TO REDUCE EMISSIONS DE NOx DURING the FLUID CATALYTIC CRAQUEAMENTO, AND PROCESS OF FCC”. They are described additives to be incorporated in 0, 1 the 10, 0% in weight in relation to the total inventory of catalyser of a unit of FCC and useful to reduce the emissions of NOx of the gases of combustion of FCC processes, additives understanding of 5 40% in weight of a particle constituted of a zeolite ZSM-5 of high SAR on 95 60% in weight of a porous silica matrix alumina, 40-60% of the changed with Ni or Co, calcined small farms of the zeolite being and later the remaining small farms of the zeolite are changed with Have covered in order to get the desired particle. The additive is steady under the usual conditions of FCC and not it modifies the activity nor the selectivity of the FCC catalysers. Match and rare lands can equally be incorporated in the additive |
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