Evaluating the Operating Conditions

of a Rectifier Column

Using Gamma Column Scanning

DENIS D. AQUINO

Isotope Techniques Section

Philippine Nuclear Research Institute

Department of Science and Technology

International Conference on Applications

of Radiation Science and Technology 2017

I. Objectives

II. Methodology III. Results

IV. Conclusion V. Acknowledgement

OUTLINE

OBJECTIVES

To gather information on the condition of the vessel at

varying process parameters

To make an assessment prior to arranging necessary maintenance operations

Column Diameter = 1m

Wall Thickness = 10mm Total height to be scanned =

440cm

Number of scans = 12

METHODOLOGY

METHODOLOGY

NaI Detector

10 mCi Co-60 Source

Laptop and Ratemeter

Hand winch system

METHODOLOGY

RESULTS

RESULTS

RESULTS

RESULTS

RESULTS

RESULTS

Blockage below Tray 1

Blockage on top of Tray 2

Partial blockage on top of

Tray 4

Flooding during Scans 3 & 8

RESULTS

Gamma column scanning was able to identify blockage that caused the anomalies in the flow of liquid inside the rectifier column.

Result of gamma scanning provided necessary information for

planning efficient repair and maintenance operations.

CONCLUSION

International Atomic Energy Agency Technical Cooperation Programme

Patrick Brisset, Technical Officer, IAEA IAEA RCA Counterparts

DOST – Philippine Council for Industry, Energy and Emerging

Technology Research and Development (DOST-PCIEERD)

ACKNOWLEDGEMENT

THANK YOU!!!

Philippine Nuclear Research Institute

Department of Science and Technology

www.pnri.dost.gov.ph