Analysis of Metallurgical Failures in the Solvent-Refined-Coal Pilot Plant at Wilsonville, Alabama

摘要

The six-ton/day Solvent Refined Coal (SRC) pilot plant at Wilsonville, Alabama, has produced coal-derived liquid and solid fuels since 1973. During the past four years engineers from Oak Ridge National Laboratory (ORNL) have worked with pilot plant personnel to assess the performance of materials in the pilot plant. One aspect of this assistance has been failure analysis services, both on site and at ORNL. Corrosion mechanisms that have been observed include sulfidation, chloride stress-corrosion cracking, polythionic acid stress-corrosion cracking, erosion, and chloride-related general corrosion. The information gained from this failure analysis work is assisting engineers and designers in selecting materials for future coal liquefaction systems. (ERA citation 07:052481)