How to Convert Lbs/Mmscf to Ppm

Blocking in these pipes due to gas hydrates could cause major problems -- and quickly.
••• Medioimages/Photodisc/Photodisc/Getty Images

Converting pounds per million standard cubic feet (lbs/MMSCF) to parts per mole (ppm) is an important mathematical calculation when determining the proper water content for a gas pipeline. If you have too much water in your pipeline, gas hydrates will start to develop, and these can turn into a clog and block the pipeline.

    Measure the water presence in your gas pipeline using a single-channel dew point hygrometer. Set the units desired to lbs/MMSCF.

    Multiply your lbs/MMSCF reading by 21 to get parts per million of water. This constant applies regardless of temperature.

    Compare your findings with the norms for the country or region through which your pipeline travels. In the United States, the accepted maximum water presence is 7 lbs/MMSCF, or 147 ppm. In Canada, though, it's 4 lbs/MMSCF, or 84 ppm.

Related Articles

How to Calculate Temperature From BTU
How to Calculate Condensate Flow From AC Units
How to Treat High Conductivity in Water
How to Convert Water Hardness in mg/L to GPG
How to Calculate Wobbe Index
Why Is Water Good to Use in a Calorimeter?
How to Convert GPD to MGD
How to Do a Bell Curve on a TI
How to Go From CM to MMHG
How to Convert Tds to Conductivity
How to Calculate Evaporation Rates
How to Find Partial Pressures
How to Convert Kilopascals to Joules
How to Make Bromine Water in the Chemistry Lab
How to Convert Milligrams to Fluid Ounces
How to Calculate CFM to MPH
How to Calculate GPM from PSI for Water
How to Calculate Tons of Cooling for a Cooling Tower
How to Convert SCFM to NM3
How to Convert UG/mL to PPM

Dont Go!

We Have More Great Sciencing Articles!