SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2019, Vol. 27 ›› Issue (2): 257-277.DOI: 10.1016/j.cjche.2018.11.011

• Fluid Dynamics and Transport Phenomena • Previous Articles     Next Articles

Optical inline analysis and monitoring of particle size and shape distributions for multiple applications: Scientific and industrial relevance

Jörn Emmerich1,2, Qiao Tang3, Yundong Wang3, Peter Neubauer1, Stefan Junne1, Sebastian Maaß2   

  1. 1 Bioprocess Engineering Department of Biotechnology, Technische Universität Berlin, Ackerstrasse 76, ACK 24, D-13355 Berlin, Germany;
    2 SOPAT GmbH, D-10115 Berlin, Germany;
    3 The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084 China
  • Received:2017-12-05 Revised:2018-10-29 Online:2019-03-18 Published:2019-02-28
  • Contact: Sebastian Maaß

Optical inline analysis and monitoring of particle size and shape distributions for multiple applications: Scientific and industrial relevance

Jörn Emmerich1,2, Qiao Tang3, Yundong Wang3, Peter Neubauer1, Stefan Junne1, Sebastian Maaß2   

  1. 1 Bioprocess Engineering Department of Biotechnology, Technische Universität Berlin, Ackerstrasse 76, ACK 24, D-13355 Berlin, Germany;
    2 SOPAT GmbH, D-10115 Berlin, Germany;
    3 The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084 China
  • 通讯作者: Sebastian Maaß

Abstract: Particles occur in almost all processes in chemical and life sciences. The particle size and shape influence the process performance and product quality, and in turn they are influenced by the flow behavior of the particles during production. Monitoring and controlling such characteristics in multiphase systems to obtain sufficient qualities will greatly facilitate the achievement of reproducible and defined distributions. So far, obtaining this information inline has been challenging, because existing instruments lack measurement precision, being unable to process overlapping signals from different particle phases in highly concentrated multiphase systems. However, recent advances in photo-optics made it possible to monitor such features (particle size distribution (PSD), aspect ratio and particle concentration) with advanced image analysis (IA) in real-time. New analysis workflows as well as single feature extractions from the images using multiple image analysis algorithms allowed the precise real-time measurements of size, shape and concentration of particle collectives even separated from each other in three phase systems. The performances, advantages and drawbacks with other non-photo-optical methods for assessing the particle size distribution are compared and discussed.

Key words: Particle, Multiphase flow, Algorithm, Inline, Photo-optical, Concentration

摘要: Particles occur in almost all processes in chemical and life sciences. The particle size and shape influence the process performance and product quality, and in turn they are influenced by the flow behavior of the particles during production. Monitoring and controlling such characteristics in multiphase systems to obtain sufficient qualities will greatly facilitate the achievement of reproducible and defined distributions. So far, obtaining this information inline has been challenging, because existing instruments lack measurement precision, being unable to process overlapping signals from different particle phases in highly concentrated multiphase systems. However, recent advances in photo-optics made it possible to monitor such features (particle size distribution (PSD), aspect ratio and particle concentration) with advanced image analysis (IA) in real-time. New analysis workflows as well as single feature extractions from the images using multiple image analysis algorithms allowed the precise real-time measurements of size, shape and concentration of particle collectives even separated from each other in three phase systems. The performances, advantages and drawbacks with other non-photo-optical methods for assessing the particle size distribution are compared and discussed.

关键词: Particle, Multiphase flow, Algorithm, Inline, Photo-optical, Concentration