Iron doped manganese oxide octahedral molecular sieve as potential catalyst for SOx removal at FCC

Iron doped manganese oxide octahedral molecular sieve as potential catalyst for SOx removal at FCC

Type	Journal Article
Author	Cirlene M. Vasconcellos
Author	Maria L. A. Gonçalves
URL	http://www.sciencedirect.com/science/article/pii/S0926860X15000459
Volume	498
Pages	69-75
Publication	Applied Catalysis A: General
Date	June 5, 2015
Abstract	The fluid catalytic cracking (FCC) process is a major source of sulfur emission in a refinery. DeSOx additive is composed of two main steps: SO2 oxidation to SO3 and trap through sulfate formation, followed by reduction to H2S. Authors describe the application of undoped and iron doped Manganese Oxide Octahedral Molecular Sieves, OMS-2 and Fe/OMS-2, as potential catalysts for DeSOx in FCC. The two materials exhibited similar SOx uptake, but Fe/OMS-2 displayed significantly more efficiencyt in the reduction step, increasing one order of magnitude the rate of the reduced gases formation compared with pristine OMS-2. Moreover, three DeSOx cycles were run with no significant loss of activity.