Convert scfd to lb/d
Convert scfd to lb/d
(OP)
Help! I am needing to convert scfd to lb/d of natural gas. The MW of the gas is 20.63.
TY!
TY!
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RE: Convert scfd to lb/d
(1 atm) * (1000 scf/day) = n * 0.002898 cf-atm/mol-K) * (273 K)
n = 1264 mol/day
mass = n * MW = 1264 mol/day* 20.63 g/mol = 26,076 g/day, then convert to 57 lb/day
This calculation also assumes that the volumetric measurement is "dry" (moisture has been subtracted). If it is wet, then you would have to subtract out the volume of water. Also remember you can't use the ideal gas law under extreme temperatures or pressures, but most pressures natural gas would be under are probably OK.
This estimate lines up pretty close with the commonly accepted natural gas density of 0.04-0.06 lb/cf (standard conditions)
-Ryan Birkenholz, Licensed PE in MN and IA