Method for measuring the coefficient of thermal expansion of coke.

摘要

A method for measuring the coefficient of thermal expansion of calcined petroleum coke involves pressing a sample of the calcined coke with a binder pitch to form a pellet and baking the pellet at a temperature of at least 800 DEG C. The coefficient of thermal expansion of the pellet is then measured. The method has the advantage of eliminating the graphitization and machining steps resulting in reduced manpower and turnaround time and requires less sample which allows CTE determination of laboratory scale cokers. Results show good correlation between this technique and traditional extrusion techniques.