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

Paper ID Volume ID Publish Year Pages File Format Full-Text
39119 45807 2015 7 PDF Available
Title
Iron doped manganese oxide octahedral molecular sieve as potential catalyst for SOx removal at FCC
Abstract

•Iron doped manganese oxide octahedral molecular sieves was tested as DeSOx catalyst.•The catalyst reacted with SOx to form metal sulfates, K2Mn2(SO4)3 and MnSO4.•The catalysts presented high capacity of sulfur absorption.•The reduction process was remarkably improved in the presence of iron.•Three DeSOx cycles were carried out without significant loss of activity.

The fluid catalytic cracking (FCC) process is the main source for sulfur emission in the refinery. DeSOx additive comprises two main steps, i.e. SO2 oxidation to SO3 and trap through sulfate formation, followed by reduction to H2S. This work describes 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. Both materials presented similar SOx uptake, but Fe/OMS-2 was much more efficient 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.

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Keywords
DeSOx; Manganese oxide; Fluid catalytic cracking
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Iron doped manganese oxide octahedral molecular sieve as potential catalyst for SOx removal at FCC
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 498, 5 June 2015, Pages 69–75
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us