Deposit Characterization and Measurements

John Chew, Himanshu M. Joshi, Sergei G. Kazarian, Marcos Millan-Agorio, Feng H. Tay, Silvia Venditti

Research output: Chapter or section in a book/report/conference proceedingChapter or section

9 Citations (SciVal)


The analysis of the structure and chemistry of deposits formed by the crude oil fouling process is paramount in gaining an understanding of the underlying causes and mechanisms. Chapter 4 begins with a review of industrial practice and findings in this context and suggests recommended practice for the collection, preparation, and analysis of refinery samples. The second part of this chapter discusses more advanced techniques for the determination of the chemical structure and molecular weight of deposits and the third part of Chapter 4 introduces a novel technique (. chemical imaging) by which the location of various chemical species in a surface layer can be established. The final part of Chapter 4 gives a description of a fluid dynamic gauging technique developed for measuring the thickness and strength of deposits in situ, in real time, and in a liquid environment.

Original languageEnglish
Title of host publicationCrude Oil Fouling
Subtitle of host publicationDeposit Characterization, Measurements, and Modeling
EditorsFrrancesco Coletti, Geoffrey Hewitt
Place of PublicationOxford, U. K.
Number of pages84
ISBN (Print)978-0-12-801256-7
Publication statusPublished - 2015


  • Asphaltenes
  • Characterization of fouling deposits
  • Chemical imaging
  • Crude oil fouling
  • Dynamic gauging
  • Elemental analysis
  • Recommended refinery practice
  • Thermogravimetric analysis
  • Thickness


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