METHOD OF DETERMINING CONTENT OF LIQUID-PHASE AND SOLID-STATE COMPONENTS IN HYDROCARBON MIXTURE

摘要

FIELD: chemistry.;SUBSTANCE: invention can be used to determine content of liquid-phase and solid-state components in a mixture of hydrocarbons. A sample of the hydrocarbon mixture is taken, after which a set of free induction decay curves of the mixture of hydrocarbons is measured using nuclear magnetic resonance for the given sample at temperature ranging from -150°C to +150°C. Content of the solid-state component P_s in the nuclear magnetic resonance ¹H signal is determined from each free induction decay curve at the same temperature at which it was measured. From the obtained values, temperature dependence of content of the solid-state component P_s in the nuclear magnetic resonance ¹H signal is determined and from the difference P_s - ΔP_si, resulting from phase transition of the i-th component after heating or cooling, content of solid-state and/or liquid-phase components in the mixture of hydrocarbons is determined by assigning ΔP_si values to corresponding components of the mixture.;EFFECT: fast and simple process of determining content of liquid-phase and solid-state components in a mixture of hydrocarbons which avoids complex operations for chemical processing of the mixture.;6 dwg