2007 年 15 巻 1 号 p. 63-71
Unlike continuous processes, the batch flow processes frequently used for chemicals produce quality that differs from batch to batch, and process stabilization is a key issue. Stabilization of a batch polymerization reaction (robust design) was studied through simulation and quality engineering. A two-step design methodology was followed, using the standard signal-to-noise ratio, and production conditions three times more stable than the collditions conjectured by experienced engineers were found in the short time of about a week. This study shows that quality engineering is effective for stabilizing batch processes and that it is efficient to use quality engineering in studying by simulation.