Flow start-up and transportation of waxy crude oil in pipelines-A review

GT Chala, SA Sulaiman, A Japper-Jaafar - Journal of non-newtonian fluid …, 2018 - Elsevier
Wax deposition and gel formation have been crucial problems to the oil industries. The
deposition of waxes would lead to gelation which blocks flow in pipelines and interrupts …

Effects of cooling regime on the formation of voids in statically cooled waxy crude oil

GT Chala, SA Sulaiman, A Japper-Jaafar… - International Journal of …, 2015 - Elsevier
Waxy crude oil solidifies when exposed to certain range of low seabed temperature. In this
condition, predicting an accurate restart pressure in the pipeline has remained to be a …

Analysis of the local gas hold-up, under constant retrofitted power input in a multiphasic mycelial fermentation model

A Holguín-Salas, F Thalasso, E Galindo - Chemical Engineering Research …, 2023 - Elsevier
Multiphase fermentations are still poorly understood since much of the available information
focused on global rather than local data and the most used parameter to control the …

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

L Weng, J Zhang, WH Zhang - The Canadian Journal of …, 2018 - Wiley Online Library
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 …

Gas holdup in cyclone-static micro-bubble flotation column

X Li, W Zhu, J Liu, J Zhang, H Xu… - Environmental …, 2016 - Taylor & Francis
The present work has been carried out to investigate the effect of process variables on gas
holdup and develop an empirical equation and a neural network model for online process …

[图书][B] Właściwości stacjonarne bioreaktorów barbotażowych typu airlift

R Grzywacz - 2012 - repozytorium.biblos.pk.edu.pl
Reaktory airlift znane są w inżynierii chemicznej i procesowej od roku 1958, kiedy to Lamont
[53] zaproponował, aby do wnętrza zbiornika służącego do flotacji rudy złota wprowadzić …

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

S García-Salas, MERP Alfaro, RM Porter… - Chemical engineering …, 2008 - Elsevier
Precise measurement of gas–liquid interfacial surface area is essential to reactor design
and operation. Mass transfer from the gas phase to the liquid phase is often a key feature …

Temperature profile and its effects on the location of lower denser substance in waxy crude oil: A numerical study

GT Chala, CK Chan, H Sadig - Advanced Science Letters, 2018 - ingentaconnect.com
When waxy crude oil is undergoing cooling and becomes a gel predicting an accurate
restart pressure is a challenge. For simplicity, waxy crude oil was assumed as a single …

Computational fluid dynamics simulation of a novel bioreactor for sophorolipid production

X Jia, L Qi, Y Zhang, X Yang, H Wang, F Zhao… - Chinese journal of …, 2017 - Elsevier
This paper describes three-dimensional computational fluid dynamics (CFD) simulations of
gas–liquid flow in a novel laboratory-scale bioreactor contained dual ventilation-pipe and …

[PDF][PDF] Gestion optimale du gaz électrogénéré dans un réacteur d'électroréduction de minerai de fer

L Abdelouahed - Univ ersité de Lorraine, Nancy (PhD dissertation …, 2013 - researchgate.net
Le dégagement du gaz électrogénéré dans les réacteurs électrochimiques relève d'un
phénomène à la fois électrochimique et hydrodynamique. La présence de ce gaz est due au …