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07685 Assessing the Erosion Corrosion Properties of Materials for Slurry Transportation and Processing in the Oil Sands Industry

Picture for 07685 Assessing the Erosion Corrosion Properties of Materials for Slurry Transportation and Processi
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Product Number: 51300-07685-SG
ISBN: 07685 2007 CP
Author: Mark Jones and Rees Llewellyn
Publication Date: 2007
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$20.00
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Two approaches are being utilized to assess a range of materials for service in erosion-corrosion (E-C) conditions that occur during processing and transportation of aqueous slurries in oil sands operation. These are (1) using a custom-built slurry pot erosion-corrosion (SPEC) evaluation system and (2) compiling E-C maps using data from separate slurry erosion and static corrosion tests. Using slurries containing 3.5wt% NaCl solution and 20wt% silica sand, the SPEC system confirmed that bi-metallic high Cr steel pipe product and WC/Stellite 21 PTAW overlay have provided the highest erosion-corrosion resistance of materials tested to date. The E-C maps confirmed that Stellite Co-based alloys exhibited the superior corrosion resistance whilst WC-based overlays produced the best erosion resistance of the material classes evaluated. Despite having certain limitations, both approaches provide satisfactory means of assessing materials in erosion-corrosion environments. Test conditions for both systems can be tailored to simulate particular industrial operations.
Two approaches are being utilized to assess a range of materials for service in erosion-corrosion (E-C) conditions that occur during processing and transportation of aqueous slurries in oil sands operation. These are (1) using a custom-built slurry pot erosion-corrosion (SPEC) evaluation system and (2) compiling E-C maps using data from separate slurry erosion and static corrosion tests. Using slurries containing 3.5wt% NaCl solution and 20wt% silica sand, the SPEC system confirmed that bi-metallic high Cr steel pipe product and WC/Stellite 21 PTAW overlay have provided the highest erosion-corrosion resistance of materials tested to date. The E-C maps confirmed that Stellite Co-based alloys exhibited the superior corrosion resistance whilst WC-based overlays produced the best erosion resistance of the material classes evaluated. Despite having certain limitations, both approaches provide satisfactory means of assessing materials in erosion-corrosion environments. Test conditions for both systems can be tailored to simulate particular industrial operations.
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The objective of this study is to develop predictive wear model for dense slurry flow to narrow the gap left by extrapolation from models meant for more dilute sand conditions.

 
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