Study of electrostatic phenomenon in gas-solid processes

气固过程中静电现象的研究

• 批准号: 342429-2007
• 负责人: Mehrani, Poupak
• 金额: $ 1.75万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=430094
• 关键词: Study; electrostatic; phenomenon; gas; solid

Electrostatic charges are generated during particle handling, transport, and processing due to particle-particle, fluid-particle and particle-wall contacts by frictional charging, tribo-electrification and contact charging. The charge build-up results in particle agglomeration, particle-wall adhesion and generation of high-voltage electrical fields, which can cause explosions and therefore be a major hazard. Gas-solid processes such as gas-solid fluidized bed reactors in polymer industries, fluid catalytic crackers in oil and gas industries and tabletting and encapsulation in pharmaceuticals provide ideal environment for electrostatic phenomenon to occur. This research program will attempt to help to gain a better understanding of electrostatic charge generation in mentioned industries by developing a new measurement technique, studying the dominating charge generation mechanisms and determining charge generation control strategies.

由于粒子颗粒，流体粒子和颗粒壁接触，在颗粒处理，运输和加工过程中产生静电电荷，该静电电荷通过摩擦充电，摩擦电气化和接触充电。电荷积聚会导致颗粒聚集，颗粒壁的粘附和高压电场的产生，这可能引起爆炸，因此是主要危害。气化过程，例如聚合物工业中的气体固流化床反应器，油气和天然气工业中的流体催化裂缝以及药品中的片剂和封装为发生静电现象提供了理想的环境。该研究计划将尝试通过开发一种新的测量技术，研究主导电荷产生机制并确定电荷产生控制策略，以帮助更好地了解上述行业中的静电电荷产生。