Conversion between true vapor pressure and Reid vapor pressure?
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The atmospheric emission standards effective as of July 1, 2017, set requirements regarding the true vapor pressure. How is the true vapor pressure converted into the Reid vapor pressure?
The American Petroleum Institute provides nomograms that can be used to calculate the actual vapor pressure; the details are not clear
The American Petroleum Institute provides nomograms that can be used to calculate the actual vapor pressure; the details are not clear
This method is suitable for determining the vapor pressure of gasoline, volatile crude oils, and other volatile petroleum products; it is not suitable for determining the vapor pressure of liquefied petroleum gas. The maximum vapor pressure of the sample at 37.8°C, as measured using a Red-type saturated vapor pressure apparatus. It is called the red saturation vapor pressure. 1 Method Overview The cooled sample is filled into the gasoline chamber of the vapor pressure apparatus, and the gasoline chamber is connected to an air chamber at 37.8°C. Immerse the detector in a constant-temperature bath (37.8±0.1°C) and shake it periodically until the pressure indicated by the pressure gauge attached to the detector remains constant; the value of this pressure, after correction, represents the Red vapor pressure.
Knowing the vapor pressure at a certain temperature, can we estimate the vapor pressure at other temperatures?
Same question. The \"Guidelines for Identifying VOC Pollution Sources in the Petrochemical Industry\" issued by the Ministry of Environmental Protection define true vapor pressure as a value obtained through conversion based on the measured Red vapor pressure (GB/T8017). I’ve looked at this GB/T8017 standard, but I still don’t know how to do the conversion