Chemical engineering applications of electrical process tomography

Henri S. Tapp, A. J. Peyton, E. Kate Kemsley, Reg H. Wilson

Research output: Contribution to journalArticlepeer-review

134 Citations (Scopus)


Electrical tomographic imaging has been applied to a broad range of chemical engineering processes, including: bubble columns, fluidised beds, pneumatic transport, liquid mixing, cyclonic separation, pressure filtration, liquid pipe-flow, polymerisation, emergency depressurisation, and paste extrusion. Two imaging approaches are described, electrical capacitance tomography (ECT) and electrical impedance tomography (EIT). To date, these have primarily been used as low-cost research tools for studying process dynamics, although they potentially may also act as sensors permitting on-line monitoring and control. Various aspects of design, operation and data processing are described, along with a review of applications in the literature.

Original languageEnglish
Pages (from-to)17-24
Number of pages8
JournalSensors and Actuators, B: Chemical
Issue number1-2
Publication statusPublished - 1 Jul 2003
Externally publishedYes


  • Chemical applications
  • Electrical tomography
  • Imaging
  • Low-cost
  • Review

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