FIELD: chemistry.
SUBSTANCE: method for the separation of catalyst fragments from the fuel oil stream comprises: separating catalyst dust from entering the fuel oil flow in a centrifugal separator to generate a stream of purified fuel oil; obtaining NMR-response signal from the NMR-device related to the amount of catalyst dust in the stream of purified fuel oil and/or in the incoming stream of fuel oil and to the top of adding or increasing the amount of separation additive to the incoming stream of fuel oil, when NMR-response signal indicates an increased amount of catalyst dust in the stream of purified fuel oil and/or in the incoming stream of fuel oil.
EFFECT: improved performance of dust separating catalyst from a fuel oil stream.
17 cl, 1 dwg
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