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Determination method of turbidity point

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Determination method of turbidity point
Latest company news about Determination method of turbidity point

GB/T6986-2010 specifies the method for the determination of the turbidity point of oil. The turbidity phenomenon in oil products, i.e. the turbidity point is high, mainly solid n-alkanes and alkanes with a low degree of isomerisation, but also some cyclic alkanes with a single ring and long side chains and aromatic hydrocarbons with a single ring and long side chains, when the content of these hydrocarbons is high, the turbidity point is high, and the turbidity point is low if there are few of these hydrocarbons".



Turbidity point determination method


The high cloud point means that the oil is not good at low temperature, and the oil loses liquidity at low temperature for two reasons: (1) for oil containing little or no wax, when the temperature drops the viscosity increases, when the viscosity increases to - a certain extent, the oil will become amorphous viscous glassy material, so that the oil loses liquidity'.21 (2) determination for oil containing wax, when the temperature is gradually reduced, the wax in the oil At first, a small amount of fine crystals appear, and when the temperature continues to drop, the fine crystals gradually grow and gradually join together to form a mesh structure, forming a wax crystalline skeleton. This crystalline skeleton envelops the oil in its liquid state, causing the whole oil to lose its fluidity. Good low temperature fluidity is the most basic requirement for oil and petroleum products. The cloud point is the temperature at which a clear, clean liquid petroleum product becomes foggy or cloudy due to wax crystallisation under the specified test conditions'".

Pub Time : 2023-04-06 10:21:19 >> News list
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