회분식 중합반응공정의 폭주반응 시 사고결과 분석 및 안전성 확보 방안에 관한 연구

초록

In this study, accident scenarios in polystyrene, poly(vinyl acetate), and phenol-formaldehyde resin manufacturing process were designed. These are the processes in which the thermal risk assessment due to the runaway reaction was performed. The damage distance was estimated using ALOHA and PHAST. In addition, the damage distance in the actual accident is numerically calculated and compared with the calculated damage distance by the program. As a result, the PHAST program was more likely to simulate the actual accidents that were the subject of this study. The damage distance is calculated under normal operating conditions, and then the damage distance is additionally calculated by using temperature and pressure as variables. As a result, there was no damage by explosion, and it was found that it was affected by the phase change of the material due to the temperature change. When the runaway reaction occurs in the actual polymerization reaction process, it is important to control the temperature in the reactor because the reaction is accompanied by a sudden rise in temperature and a pressure rise in the reactor. As a safety assurance method, a polymerization method capable of easily controlling the reaction heat is selected and a facility for introducing a polymerization inhibitor must be installed. Also, a pressure relief device, such as a rupture disc, should be installed to prevent the congestion reaction from leading to an accident.

키워드