Solid Sludge (Shoe Polish) Evaluation in Refinery Tail Gas Treating Units

摘要

The performed tests and analysis indicated that for this particular case, the "Shoe Polish" sludge material composition was consistent predominantly with insoluble and crystalline iron sulfide clusters encapsulated in a matrix of water soluble polymeric iron sulfides, heat stable salts, amine residues and minor hydrocarbon traces. We believe that this characterization is representative of similar materials in other amine units and some TGTU units. However, caution has to be used as these process units can experience considerable variability and the composition of these materials might vary somewhat.