Powdered materials are widely used in industrial processes, chemical processing, and nanoscience. Because most flammable powders and chemicals are not pure substances, their flammability and self-heating characteristics cannot be accurately identified using safety data sheets. Therefore, site staff can easily underestimate the risks they pose. Flammable dust accidents are frequent and force industrial process managers to pay attention to the characteristics of flammable powders and create inherently safer designs.

This study verified that although the flammable powders used by petrochemical plants have been tested, some powders have different minimum ignition energies (MIEs) before and after drying, whereas some of the powders are released of flammable gases. These hazard characteristics are usually neglected, leading to the neglect of preventive parameters for fires and explosions, such as dust particle size specified by NFPA-654, MIE, the minimum ignition temperature of the dust cloud, the minimum ignition temperature of the dust layer, and limiting oxygen concentration. Unless these parameters are fully integrated into process hazard analysis and process safety management, the risks cannot be fully identified, and the reliability of process hazard analysis cannot be improved to facilitate the development of appropriate countermeasures. Preventing the underestimation of process risk severity due to the fire and explosion parameters of unknown flammable dusts and overestimation of existing safety measures is crucial for effective accident prevention.

粉末材料广泛用于工业过程，化学加工和纳米科学中。由于大多数易燃粉末和化学物质不是纯物质，因此无法使用安全数据表准确识别其易燃性和自热特性。因此，现场工作人员很容易低估他们带来的风险。易燃粉尘事故频繁发生，迫使工业过程管理人员注意易燃粉末的特性，并创建本质上更安全的设计。

这项研究证实，尽管已经对石化厂使用的易燃粉末进行了测试，但某些粉末在干燥前后具有不同的最低点燃能量（MIE），而某些粉末则释放出易燃气体。这些危险特性通常被忽略，导致火灾和爆炸的预防性参数被忽略，例如由MIE NFPA-654指定的粉尘粒径，粉尘云的最低着火温度，粉尘层的最低着火温度以及极限氧气浓度。除非将这些参数完全集成到过程危害分析和过程安全管理中，否则无法完全识别风险，并且不能提高过程危害分析的可靠性以促进制定适当的对策。预防因未知易燃粉尘的火灾和爆炸参数而导致的过程风险严重性的低估，以及对现有安全措施的高估，对于有效预防事故至关重要。