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Chemical Engineering - Mass Transfer - Discussion

Discussion Forum : Mass Transfer - Section 2 (Q.No. 4)
Mass Transfer
4.
A coalescer in a mixer-settler liquid-liquid extraction coloumn
comprises of thin bed of substances of extended surface having high porosity.
helps in increasing the bubble size entering the settler.
helps in increasing the settling rate of the bubbles.
all 'a', 'b', & 'c'.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.
KRR said:   3 years ago
A coalescer is a device which induces coalescence (Coalescence is the process by which two or more droplets, bubbles or particles merge during contact to form a single daughter droplet, bubble or particle) in a medium. They are primarily used to separate emulsions into their components via various processes, operating in reverse to an emulsifier.
(1)
Aashi said:   8 years ago
One of the phase in the mixer is dispersed in the other phase in the form of droplets to increase the interfacial area. Hence, the coalescer in the settler is basically used to separate the components of emulsifying liquid in the mixer.
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