A FACILITY FOR HIGH-PRESSURE MEASUREMENT OF REACTION-RATES OF MILLIMETER-SIZED COAL

A study was undertaken to design, construct, characterize, and demonst rate a new facility for determination of reaction rates of large coal particles at elevated pressures, A cantilever balance attachment (CBA) was designed, fabricated, and utilized in conjunction with the existi ng high-pressure controlled profile (HPCP) reactor. Large particle (8 mm diameter) combustion experiments of Utah HVBB coal at both atmosphe ric and elevated pressures were performed to demonstrate the facility' s capabilities. Measurements were obtained of particle mass loss rate and surface temperature coupled with a video record for visual observa tion.