What factors contribute to the easy emulsification of diesel?
Thread Content
How is diesel related to what factors? Is it related to the acid value? Is it related to the flow rate?
It is related to moisture content, temperature, operation, etc. 1. High water content, prone to emulsification ； 2. Low temperature facilitates emulsification ； 3. The sedimentation and separation time is insufficient, leading to easy emulsification.
It is related to factors such as temperature, moisture content, viscosity, specific gravity, conveying speed, and the disturbance speed of stirring
Reply to 4# wgzheng2001: Thank you. I just want to know whether diesel is related to the acid value – could you be more specific? Explain in more detail!
It is related to moisture content, temperature, operation, etc. 1. High water content, prone to emulsification ； 2. Low temperature facilitates emulsification ； 3. The sedimentation and separation time is insufficient, leading to easy emulsification.
Reply to 5# jensen_xu: The most direct cause of emulsification in straight-run diesel is an excessively high acid value of the diesel. Straight-run diesel contains naphthenic acids, and the heavier the diesel fraction, the heavier the naphthenic acid molecules. During alkaline refining of diesel, naphthenic acids react with alkalis to form sodium naphthenate. Light sodium naphthenate dissolves in water, while heavy sodium naphthenate does not; however, its sodium ion portion can dissolve in water, while the naphthenic acid portion remains in the oil. This gives heavy sodium naphthenate surfactant properties. As a result, alkaline refining of ordinary diesel is generally problem-free, but emulsification tends to occur during electrical refining of higher-quality diesel. There are currently anti-emulsifiers available that can effectively prevent emulsification during electrical refining of such diesel