Removal of oil from synthetic heavy crude oil-in-water emulsions by the association of glass raschig rings and ultrasound

Numerical assessment of ultrasound supported coalescence of water droplets in crude oil

“…Besides the energy density gradients, there are experimental errors that have been reported by numerous groups on the ultrasound assisted coalescence and demulsification of oil-in-water and water-in-oil emulsions. Errors in experimental investigation of ultrasound coalescence have been reported in the studies of Ronchi et al [66] , Antes et al [11] , Antes et al [67] , Atehortua et al [38] , Luo et al [22] . These errors could make it challenging to obtain enhanced model prediction compared to experimental reports.…”

Recent developments, challenges, and prospects of ultrasound-assisted oil technologies

“…Membranes are often affected by fouling which causes reduced flux, lower lifespan, costly maintenance and subsequent damage of the membrane [34] . Ultrasonic assisted demulsification of oil emulsions could potentially resolve many challenges faced by the other technologies either when used as an integrated addition or as standalone [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] , [43] , [44] , [45] , [46] , [47] , [48] , [49] , [50] , [51] , [52] .…”

“…Similar improvements in the rate of oil recovery by 20–75% have been shown in several laboratory and field studies [14] , [9] , [10] , [11] . Developments have been witnessed as well in the dehydration of water in oil emulsions, with separation efficiencies between 20 and 95% [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] , [39] , [40] , [41] , [42] , [43] , [44] , [45] , [46] , [47] , [48] , [49] , [50] , [51] , [52] , [53] . Due to these significant developments and numerous research findings in US assisted oil technologies which has seen sustained increment in the past decade, there is a need for a detailed review which highlights the progress and challenges as well as prospects ( Fig.…”

Application of Cavitation in Oil Processing: An Overview of Mechanisms and Results of Treatment

“…To use a large tank for ultrasonic treatment can be more prospective from the viewpoint of processing large amounts of oil containing sludge, but low intensity of ultrasound can reduce its performance; implementation of this method is associated with special tanks or structures. 41 The high cost of equipment and maintenance also prevent commercial use of this technology.…”