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a-What is the purpose of the desalter water pH controlling? How can this be achieved? b-Why the pressure is applied in the desalter? c-What

a-What is the purpose of the desalter water pH controlling? How can this be achieved? b-Why the pressure is applied in the desalter? c-What may indicate a gradual decline in desalter voltage ? d- What are the effects of temperature in desalter? e- What is meant by PTB?

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