Method for vacuum distillation of a liquid product and an equipment for performing thereof

A method of vacuum distillation of a petroleum product, said method comprising the following steps:

• feeding the petroleum product to a vacuum distillation column,
• separating the petroleum product in the column to a vapour-gaseous phase and at least one liquid fraction,
• feeding the vapour-gaseous phase into a vacuum-creating device comprising a liquid-gas ejector having an inlet in which a fluid working medium is supplied,
• condensing directly the vapour-gaseous phase in said vacuum-creating device, forming a two-phase mixture,
• separating the two phase mixture into a liquid phase and a gaseous phase,
• withdrawing the gaseous phase and portions of the liquid phase from the vacuum-creating device,
• forming the fluid working medium by combining a portion of the liquid phase with a portion of the at least one liquid fraction from the vacuum distillation column, wherein the portion of the liquid phase used as a working medium for the vacuum-creating device proceed with withdrawal therefrom of heat excess,.
• delivering another portion of the at least one liquid fraction from the column back to an upper portion of the column, and
• delivering the fluid working medium by a pump to the inlet of the liquid-gas ejector of the vacuum-creating device.