Monitoring stability of reaction and dispersion states in a suspension polymerization reactor using electrical resistance tomography measurements

Study of solid–liquid mixing in agitated tanks through electrical resistance tomography

“…Among these, ERT is the most attractive method owing to its inherent simplicity, high-speed capability, and rugged construction of the tomographer. ERT is sufficiently robust to cope with most industrial environment, hence it is widely used in various chemical engineering processes, including bubble columns (Wang et al, 2001), solid-liquid filtration (Vlaev et al, 2000), polymerization (Kaminoyama et al, 2005), cyclonic separation , photoreactors (Zhao et al, 2008), and in the mixing processes (Holden et al, 1998;Stanley et al, 2002;Ricard et al, 2005;Stanley, 2006;Stanley and Bolton, 2008;Pakzad et al, 2008aPakzad et al, , 2008b.…”

Measuring Mixing Time in the Agitation of Non‐Newtonian Fluids through Electrical Resistance Tomography

“…The ERT method can detect local changes in conductivity and further generate a cross-sectional view of the mixing tank in a non-intrusive manner. ERT is a measurement technique with a wide range of research and development applications, including the investigation of mixing processes [8], monitoring the stability of reaction in the polymerization reactor [9], investigation of solid-liquid filtration processes [10], examination of the performance of a hydrocyclone [11], measurement and control of bubble columns [12,13], and monitoring multiphase processes such as solidliquid [14,15], gas-liquid [12,16], and liquid-liquid [17,18]. This technique provides not only the measurement of mixing time, but also insight into the dynamics of mixing which is critical in the industry, especially in the case of non-Newtonian fluids.…”

Evolution of volume fractions and droplet sizes by analysis of electrical conductance curves during destabilization of oil-in-water emulsions

“…Such techniques have been used in the past for monitoring other applications such as mixing [11], bubble columns [12], multiphase flows [13,14], solid-liquid filtration [15], and polymerization reactors [16]. In those studies different electrode geometries and possibilities to arrange/configure electrodes have been employed.…”