title: NMR sensor for onboard ship detection of catalytic fines in marine fuel oils.
abstract: A mobile, low-field nuclear magnetic resonance (NMR) sensor for onboard, inline detection of catalytic fines in fuel oil in the shipping industry is presented as an alternative to onshore laboratory measurements. Catalytic fines (called cat fines) are aluminosilicate zeolite catalysts utilized in the oil cracking process at refineries. When present in fuel oil, cat fines cause abrasive wear of engine parts and may ultimately lead to engine breakdown with large economical consequences, thereby motivating methods for inline measurements. Here, we report on a robust, mobile, and low-cost (27)Al NMR sensor for continuous online measurement of the level of catalytic fines in fuel oil onboard ships. The sensor enables accurate measurements of aluminum (catalytic fines) in ppm concentrations in good agreement with commercial laboratory reference measurements.
authors.affiliation: Center for Insoluble Protein Structures (inSPIN), Interdisciplinary Nanoscience Center (iNANO) and Department Chemistry, Aarhus University , Gustav Wieds Vej 14, Aarhus C, DK-8000, Denmark.
authors.forename: Morten K
authors.initials: MK
authors.lastname: Sørensen
authors.forename: Mads S
authors.initials: MS
authors.lastname: Vinding
authors.forename: Oleg N
authors.initials: ON
authors.lastname: Bakharev
authors.forename: Tomas
authors.initials: T
authors.lastname: Nesgaard
authors.forename: Ole
authors.initials: O
authors.lastname: Jensen
authors.forename: Niels Chr
authors.initials: NC
authors.lastname: Nielsen
mesh_terms: D002384:Catalysis; D005648:Fuel Oils / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation*
chemical_list: D005648:Fuel Oils