Monday, January 4, 2010

Properties of LPG.

LPG is composed predominantly of propane and propylene with minor amounts of butane, isobutane, and butylene. It is odorless, colorless, and non-toxic. To reduce the danger of an explosion from undetected leaks, commercial LPG usually contains an odorizing agent which gives it a distinctive pungent odor. LPG is a vapor at atmospheric conditions. It is normally stored as a liquid at a storage pressure of 200 psia (1400 kPa). LPG has the following properties:

a) Freezing Point, degrees F (degrees C) -305 (-187)

b) Relative Density (Specific Gravity) 147 degrees API (0.588)

c) Vapor Pressure at 100 degrees F (38 degrees C), 175.8 (1212) psi (kPa)

d) Heat Content, Btu/lb (kJ/kg) 21,591 (50 221)

Special Precautions for LPG

a) Store LPG under pressure in appropriate pressure-rated tanks.

b) The potential for fire and explosion presents extreme hazards to life and property. Provide adequate relief venting and additional fire protection in accordance with NFPA 58.

Seismic Energy Dissipation Devices

Seismic Energy Dissipation Devices