B. Asadizeydabadi ^a,*, M. Haghshenas ^b , S. Roshani ^c,

M. Moshfeghian ^d

^a Shell Global Solutions International B.V., Shell Development Iran B.V., Tehran – Iran

^b Chemical and Process Engineering Department, Namvaran Management and Engineering, Tehran – Iran

^c Process Engineering Department, Petrochemical Industries Design & Engineering Co., PIDEC, Shiraz – Iran

^d John M Campbell & Company, Norman, Oklahoma USA

Abstract

A concise and accurate methodology has been developed using well known software packages to predict the type and amount of inhibitor required during sudden depressurization of a system to prevent hydrate formation. The outlined procedure exhibits the P-T history of the system and hence the hydrate formation temperature profile. A practical example of using such procedure clearly indicates the ease and accuracy of designing a hydrate inhibition package for any units in the gas, oil and petrochemical industries. © 2006 Hydrocarbon Processing®