Measurement of local gas holdup in bubble columns via a non-isokinetic withdrawal method

García-Salas, Sergio; Orozco-Álvarez, Carlos; Porter, R. Michael; Thalasso, F.

doi:10.1016/j.ces.2005.06.010

Search citation statements

Order By: Relevance

Paper Sections

Select...

Contração Térmica1

Citation Types

Supporting

Mentioning

Contrasting

Unclassified

Year Published

2008

2023

Publication Types

Select...

Article5

Other1

Relationship

Self Cite0

Independent6

Authors

Journals

Cited by 10 publications

(1 citation statement)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A formação desses espaços "vazios" como resultado do encolhimento térmico faz com que o petróleo parafínico gelificado seja um fluido compressível (46).…”

Section: Contração Térmicaunclassified

Estudo Sobre a Influência Da Contração Do Petróleo Ao Gelificar No Reinício Do Escoamento

ALVES¹

View full text Add to dashboard Cite

“…A formação desses espaços "vazios" como resultado do encolhimento térmico faz com que o petróleo parafínico gelificado seja um fluido compressível (46).…”

Section: Contração Térmicaunclassified

Estudo Sobre a Influência Da Contração Do Petróleo Ao Gelificar No Reinício Do Escoamento

ALVES¹

View full text Add to dashboard Cite

An ultrasound‐conductivity method for measuring gas holdup in a microbubble‐based gas‐liquid system

Weng

Zhang

2017

Can J Chem Eng

View full text Add to dashboard Cite

Due to the high specific surface area of microbubble‐based systems, the concept of gas‐liquid separation has successful applications in many fields, such as oil‐water separation, algal harvesting, micro‐extraction, membrane pretreatment, and water treatment. Gas holdup is an important parameter in such systems. However, the conventional measurement methods for the macrobubble system may not be directly applicable to the microbubble system due to small bubble size and low gas holdup. In this study, an ultrasound‐conductivity method under non‐isokinetic sampling conditions was developed to measure gas holdup in the microbubble‐based gas‐liquid system. The measurement setup consists of a sampling probe, a bubble coalescence unit, and a conductivity measurement unit. A key feature of the setup is a bubble coalescence unit to convert microbubbles to macrobubbles for conductivity measurement. The results showed that the bubble coalescence unit, made of an ultrasonic bath and a bubble‐coalescence cell, was successful in forming macrobubbles so that accurate conductivity measurements could be made. Under non‐isokinetic sampling conditions, the relationship between the extraction parameter (the gas volume fraction in the sampling probe) and the true gas holdup was established in flotation columns. The results indicate that the relationship does not depend on other factors, such as sampling probe orientation and flotation column diameter. Therefore, the developed ultrasound‐conductivity method has great potential in microbubble‐based gas‐liquid system.

show abstract

Measurement of local specific interfacial area in bubble columns via a non-isokinetic withdrawal method coupled to electro-optical detector

García-Salas¹,

Alfaro²,

Porter

et al. 2008

Chemical Engineering Science

View full text Add to dashboard Cite

Measurement of local gas holdup in bubble columns via a non-isokinetic withdrawal method

Cited by 10 publications

References 16 publications

Estudo Sobre a Influência Da Contração Do Petróleo Ao Gelificar No Reinício Do Escoamento

Estudo Sobre a Influência Da Contração Do Petróleo Ao Gelificar No Reinício Do Escoamento

An ultrasound‐conductivity method for measuring gas holdup in a microbubble‐based gas‐liquid system

Measurement of local specific interfacial area in bubble columns via a non-isokinetic withdrawal method coupled to electro-optical detector

Contact Info

Product

Resources

About