MICROWAVE TECHNIQUE FOR DETERMINING MOISTURE CONTENT OF LIQUID HYDROCARBONS AND FUEL Russian patent published in 2012 - IPC G01N22/04 

FIELD: chemistry.

SUBSTANCE: reference liquid sample with real and imaginary permittivity much higher than that of the analysed hydrocarbon is taken and placed in separate intertwined pipes. The analysed and reference liquids are heated with microwaves while rotating the pipes at not less than 3 rpm. Relative bulky moisture content of the liquid hydrocarbon is determined using the formula where Δt_1e is the heating temperature of the liquid hydrocarbon with known relative bulky moisture content V₀; Δt_2e is the heating temperature of the reference liquid sample together with the liquid hydrocarbon with known relative bulky moisture content V₀; Δt₁ is the heating temperature of the liquid hydrocarbon with unknown relative bulky moisture content V; Δt₂ is the heating temperature of reference liquid sample together with the liquid hydrocarbon with unknown relative bulky moisture content V, wherein the initial temperature values of the samples before microwave heating during measurements Δt_1e, Δt₁ Δt_2e, Δt₂ are equal to each other.

EFFECT: high accuracy of determining moisture content.

4 dwg, 1 tbl