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Thus, given the high concentrations of essential oils in the film, a high
coefficient of evaporation and rectification ratio of essential oils in the vapor
phase obtained from the film is formed the fraction with a high concentration of
aromatic oils, which in the capacitor - the refrigerator is cooled.
Rectification - the process of separating liquid mixtures of volatile
components or groups of components (fractions) by multiple bilateral heat - and
mass transfer between the counter-moving steam and liquid flows.
Prerequisite rectification process - different volatility (vapor pressure) of
the individual components.
The interaction countercurrently moving stream during rectification volatile
component diffuses from liquid to vapor and vapor of the nonvolatile component
in the liquid.
Scientific support rectification alcohol - diffusion process of mass transfer
in the rectification determined phase contact surface area F (m2) and the average
driving force of the process A C (kg / kg) and the mass transfer coefficient
referred to 1m2 of the phase contact, K [kg / (m2 - from)].
The chemical nature, they are diverse, but in terms of rectification can be
divided into three main groups: head, tail and intermediate.
Alcohol - raw lyuternoy diluted with water to increase the coefficient of
rectification impurities.
The equipment for alcohol distillation process flowmeter enters the
evaporator, where due to the heat lyuternoy water evaporates in the form of a
vapor stream is sent to the reflux condenser.
The formation of impurities in large quantities in conventional systems due
to the fact that the mash and partially in the main Epuration column with
distillation processes separate the mixture occur attendant chemical and
biochemical processes.
Of absolute alcohol may be water binding solid or liquid materials (e.g.,
quicklime, glycerol) and distillation under vacuum or in the presence of salts,
with azeotropic point shifts toward a greater alcohol content.
To calculate the capacity conditional alcohol - raw result is multiplied by a
factor of 1.05, taking into account the alcohol by-products and the losses during
the distillation.
When alcohol rectification efficiency of mass transfer diffusion process is
determined by the phases of the contact surface area, the mean driving force
behind the process and mass transfer coefficients.
Scientific support for the process of alcohol distillation. When removing
nutrients or removal of impurities can be widely used mass transfer processes
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