Chemical Engineering - Petroleum Refinery Engineering - Discussion


The pressure (kg/cm2 ) and temperature (°C) maintained in electrical desalters for crude oil are respectively

[A]. 10 and 120
[B]. 1 and 200
[C]. 50 and 250
[D]. 10 and 300

Answer: Option A


No answer description available for this question.

Mohammed Salim said: (May 21, 2014)  
How come?

In KRC, answer(A) is the right answer.

Zareena said: (Jun 6, 2015)  
At atmospheric pressure and temperature of 200 C water will get converted into steam, to increase the Boiling Point of water which is present in crude, Desalter pressure should be maintained at Min 10 Kg/Cm2 to avoid phase change in Desalter.

Option 1 is the right answer as @Mr.Salim said.

Tansingh said: (Jan 26, 2017)  
Answer A is right, because our CDU/VDU plant in pressure in electric desalter we maintain pressure normally 10-15 kg and temp 200 c.

Rajkumar Soni said: (Apr 16, 2017)  
As per my knowledge it's 6.5 kg pressure & 90-130° C temperature.

Shani Chaudhary said: (Jul 7, 2017)  
11 to 13 kg/cm2 desalter pressure and temperature 130 to 137. Because demulsifier on this temperature proper work in desalter.

Kapil Sharma said: (Aug 31, 2017)  
In my refinery, cdu/vdu unit has double frequency desalter and have the reassure 18 kg/cm2and temperature also 130 to 135.

Ram said: (Sep 3, 2017)  
Option A is correct in my refinery desalter pressure is 8kg and temperature 120c.

Sarin said: (Jul 11, 2018)  
The answer is 10 Kg/cm2 and 120°C.

Brijesh Pathak said: (Sep 12, 2018)  
I think Option A is the correct answer.

Raj Kumar said: (Nov 22, 2018)  
Option A is the correct answer. Because pressure 8-10 and temp 120-130 will be maintained for crude desalting.

Madhuri said: (Apr 8, 2019)  
The Correct answer is A.

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