API TR 977-ed.1

Anotácia textu normy API TR 977-ed.1 :

API TR 977, 1st Edition, February 2018 - ASTM C704 Test Variability Reduced to Allow Further Optimization of Erosion-resistant Refractories for Critical Oil Refining Applications

This technical report documents the results of a joint project conducted by the API CRE Subcommittee on Refractory Materials (SCRM) and the ASTM C08 Committee to improve the reproducibility of the ASTM C704/C704M, 2015 Edition, Standard Test Method for Abrasion Resistance of Refractory Materials at Room Temperature. Erosion-resistant refractories are used in many oil refining applications, such as fluid catalytic cracking units (FCCUs), to resist the wearing effects of solids particles (5 µm to 100 µm is typical) circulating at elevated velocities [30 ft/s to 200 ft/s (9 m/s to 61 m/s)] in a high-temperature process environment [900 °F to 1400 °F (482 °C to 760 °C)].

This technical report also reviews the drivers for continuing improvement in erosion-resistant refractories and the role of ASTM C704/C704M for the selection and installation quality control of refractories used in these installations. This report documents changes made to the setup and procedures to improve the reproducibility of the test. These changes are designed to achieve this end, while providing a rough equivalency consistent with historical data before the changes were made. These results are validated by extensive international round robin and ruggedness testing and are reported herein