Presentation Profile

Vapor Pressure Measurement Technology: Analysis of the effects of Temperature on Vapor Pressure for Various Oil Samples

Main Author
Dr. Raj Shah - Koehler Instrument Company, Inc.

Additional Authors
  • Stefan Lim - Koehler Instrument Company, Inc.
  • Philip Iaccarino - Koehler Instrument Company, Inc.
  • Tom Karis - TEK Data Systems Aromas
Abstract Number: 119

Vapor pressure is a crucial measurement in the fuel industry. Failure to account for the vapor pressure of a sample can lead to accidents that damage the environment and the health of others. In an attempt to regulate toxic vapors released into the air, some governments regulate the vapor pressure of petroleum products. A prime example of this is that the United States Environmental Protection Agency (EPA) restricts the Reid vapor pressure of commercial gasoline to be lower than 7.0, 7.8, or 9.0 psi depending on the region during the summer months, and this shows that devices to quickly and easily measure the vapor pressure of fuels is a necessity in the industry. ASTM D6378, developed in 1999, uses a revolutionary method for measuring the vapor pressure of petroleum products and only requires about 10 mL of sample, as opposed to the upwards of 700 mL required for the Reid Vapor method. In this poster, we study the development of vapor pressure measurement from Reid up to the triple expansion method. We evaluate several samples provided by the various customers and investigate the efficiency and sustainability of a modern vapor pressure instrument that only requires a fractional amount of sample compared to its predecessor.

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