Compute the minimum mass fraction of methanol, MEG, DEG, or TEG required in free water to suppress hydrate formation by a target ΔT, and the resulting injection rate. Per Hammerschmidt (1934) and GPSA §20. Pairs with Hydrate Prediction — predict where the hydrate envelope sits, then size the inhibitor injection to stay clear.
Inhibitor & Target
°F
wt %
Free Water & Gas
lb/hr
MMscfd
lb/MMscf
Economics
$/gal
📚 Theory
Hammerschmidt derivation, K_H by inhibitor, vapor & NGL partition losses, MEG vs MeOH economics.