Abstract
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.
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