The use of ppm
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What does it mean that the water content in the raw materials for synthesis is no more than 30 ppm? Raw material feed rate: 10 t/h :):)
Generally, for liquids, it is the mass ratio； For gases, it is a volume ratio.
It is generally the quality content. It’s that your raw materials have requirements regarding moisture content, which must not exceed 30 ppm; if it’s higher, it affects production. It may produce by-products, affect the purity of the product, or simply ruin the reaction! It mainly depends on what you produce
This post was last edited by ylb913 on 2016-2-25 06:37. What is required here is not the total amount of water; it has nothing to do with the volume of the feed. Instead, what’s specified is that the water content in the raw material must not exceed 30 ppm, or 0.003%.
If it’s a gas, it can also be related to the dew point temperature, right?
The water content is related to the dew point, and the dew point is generally used for detection
PPm stands for parts per million, which refers to one part in a million; it can denote either the mass fraction or the volume fraction. Those who pay close attention to such details will indicate PPm (V) or PPm (M)~~
The dew point temperature is related to pressure; it cannot be determined solely based on temperature or moisture content
This is the limit for the amount of water in your intake air; it can also be expressed in terms of dew point. 30 ppm corresponds to approximately -52 degrees Celsius. If the value is below 30 ppm, then the dew point is below -52 degrees Celsius~~