CHAPTER 7 Vapor-Liquid Flash Separator DOCX

Title	CHAPTER 7 Vapor-Liquid Flash Separator
Author	Ammar Saleem
Pages	1
File Size	623 KB
File Type	DOCX
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Summary

Vapor-Liquid Flash Separator Design 35 CHAPTER 7 Vapor-Liquid Flash Separator 7.1 Introduction The vapor liquid separators are used to separate two phase inlet into pure vapors and pure liquid. It basically helps in recovering valuable products and improves product purity. If two phase separators ar...

Description

Vapor-Liquid Flash Separator Design CHAPTER 7 Vapor-Liquid Flash Separator 7.1 Introduction The vapor liquid separators are used to separate two phase inlet into pure vapors and pure liquid. It basically helps in recovering valuable products and improves product purity. If two phase separators are used after flashing a hot liquid across a valve, it is called a flash separator. 7.2 Significance in Process Flash Separators are preferred when the relative volatility difference between the components is high. In our case it is used to separate water, gasoline and light diesel from the incoming feed. Dewatering Defueling 7.3 Types of Separators 1. Vertical Separator 2. Horizontal Separator 3. Knockout Drum 7.3.1 Vertical Separator Used where vapor flow is large as compared to liquid flow. Good separation efficiency. By rule of thumb it is commonly preferable in oil refineries. 7.4 Selection Criteria If length to diameter (L/D) ratio lies between 3 and 5, then it will be vertical separator. If length to diameter (L/D) ratio is greater than 5 then it will be horizontal separator. 35...