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.

在颗粒处理、运输和加工过程中，由于颗粒与颗粒、流体与颗粒以及颗粒与壁的接触，通过摩擦带电、摩擦带电和接触带电而产生静电荷。电荷积聚导致颗粒团聚、颗粒壁粘附并产生高压电场，这可能引起爆炸，因此是重大危险。气固过程，例如聚合物工业中的气固流化床反应器、石油和天然气工业中的流体催化裂化装置以及药品中的压片和封装，为静电现象的发生提供了理想的环境。该研究计划将尝试通过开发新的测量技术、研究主要的电荷生成机制和确定电荷生成控制策略，帮助更好地了解上述行业中的静电荷生成。