Manufacture Process Scale-Up and Industrial Testing of Novel Catalysts for SOx-Emissions Control in FCC Units
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Novel SOx-reducer (ReSOx) catalysts containing an Mg–Al–Fe anionic clay as precursor and primary constituent have been scaled-up for commercial application in fluid catalytic cracking (FCC). The catalysts are manufactured, on a large scale, through a facile, energy-wise, environment-friendly and economical procedure which, advantageously, does not require external binding agents to produce fluidizable microspheroidal particles. Ce is added into the catalysts’ composition in varying amounts to extend their flexibility for usage in partial or full combustion regenerators. When tested industrially in a 40 MBPD (1000 barrels per day), 180 ton of catalyst inventory, partial combustion FCC unit, ReSOx-catalysts exhibit a notably high SOx reduction activity removing around 35 kg SO2 per kg of catalyst, without detecting upsets neither in the base cracking performance nor in coke production in a continuous 48-days run.
KeywordsCatalytic cracking FCC unit SOx emissions ReSOx-catalysts Cracked products Efficiency for SOx removal
Technical aid from the staff of the Area de Plantas Piloto at IMP (Ing. Lázaro M. García). Administrative and technical facilities from PEMEX-Refinación (Ing. Víctor García) and Refinería of Salina Cruz, Oax. (Ings. Jorge Valdivieso and Alejandrino Toledo.)
Mexican Institute of Petroleum by means of the Research Project No. D.00355.
Compliance with Ethical Standards
Conflict of interest
The authors declare that they have no conflict of interest.
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