The Study Of Hazard Identification And Risk Control Measures For Ethylene Oxide Device

Ethylene oxide is a very important organic chemical product in the ethylene derivatives,the production, market consumption and prices of ethylene oxide at home and abroad hasbecome the important factors for the development of today’s non-ionic surface active agentand ethylene oxide derivatives fine chemical industry according to the statistics, ethyleneoxide is second only to polyethylene and polyvinyl chloride in ethylene derivatives andbecome third most important organic chemical products.High ethylene oxide process complexity and high dangerous substances have brought alot of potential risks, in order to establish reasonable security measures to reduce the risk ofethylene oxide device, from the current ethylene oxide technology research progress andapplications of ethylene oxide device in China, through the hazard and operability (HAZOP)analysis method for device related risk identification methods, identify the main risks of thedevice, and apply more popular and widely recognized software simulation of PHAST andALOHA, and methods of protection analysis (LOPA) analysis, obtained hazardous materialsin ethylene oxide device and the main risk control measures should be taken for differentprocesses nodes. The main contents include:1. Identify the main risk of ethylene oxide equipment, firstly do material hazard analysisfor all kinds of materials involved in the productive process of ethylene oxide device, adoptthe idea system of hazard and operability analysis (HAZOP) to identify the main potentialrisks of the ethylene oxide device, for the potential risks analyses causes and consequences,and finally concludes that sums up the27main risks;2. Determine the risk level of main potential risk in ethylene oxide device: theprobability estimation method is adopted for each potential risk accident probability is calculated. For serious accident scene, using PHAST and ALOHA accident consequencesimulation software, and the fireball radiation values, such as explosion shock wave limit toquantify the accident consequences, realize the consequences of quantitative classification,finally the risk matrix method is used to determine the level of each risk;3. For possible and greatly influenced the accident scene (level2), through the layer ofprotection analysis (LOPA) to determine the protection measures should be taken, andanalyses the technological process of the protection measures again, concluded that theeffectiveness of the protection measures taken by, finally puts forward the different processnodes for ethylene oxide device the41main risk control measures should be taken, amongthem, the reaction system, EO absorption and EO refined system control measures is more,should pay attention, the research conclusion is good guiding significance for field work.