Polishing filtration of cognacs and cognac drinks

Filtration of cognac, brandy, cognac drinks

Two-stage filtration scheme for polishing filtration of cognac drinks on the basis of filter cartridges is used before bottling.

The combination "prefilter - final filter" increases the reliability of the technological process, ensures maximum productivity, high filter capacity and economic efficiency of the filtration system.

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Variants of filtration schemes

Specifications

Variants of filtration schemes

For various cognacs classes NPP Technofilter offers several variants of micro filters combinations made of high-tech materials.

There is no changing of all organoleptic characteristics of the drink after filtration.

Filtration schemes for cognacs and cognac drinks

Option	«Optimum»	«Elite»
Class*	Ideal for economical filtration of cognac beverages	Elite cognac drinks
Pre-filter	EPVg.P-500	EPV.S (SC)-300/100
Finish filter	EPV.S-050	EPM.PS-045 (0.65)

* The choice of the scheme depends on class of the drink

«Optimum» is based on EPVg.P (high-performance depth filter cartridges made of pleated polypropylene) and EPV.S (made from glass microfiber), both are characterized by low cost, increased operating time without regeneration, high degree of microparticles (≥ 0.9 microns) retention. Filter cartridges are characterized by excellent wettability, inertness to alcohol-containing liquids, operation at low differential pressure; they provide good transparency and shine of the filtered drinks.

«Elite» on the basis of highly efficient micro fiber glass depth pleated pre-filter EPV.SC and finish high-performance polyethersulfone membrane filter cartridge EPM.PS with 0.45 (0.65) μm pore size with 99.9 % retention efficiency. The sieve mechanism of particle retention, inherent to membrane filter cartridges, completely prevent the penetration of particles in the filtrate (medium migration). Highly selective membrane filter cartridges give cognac drinks a special shine and nobility of color, contribute to the disclosure of the exquisite bouquet and the appearance of additional tones, significantly increase the bottling parameters.

Specifications

Brief specification of filter cartridges used for pre-filtration and final filtration

Brend	Filter media	Pore size, μm	Properties	Notes
EPVg.P	Polypropylene	0.5 - 20	Depth Pleated Hydrophilic	Rigid matrix High retention efficiency Multiple regeneration Operating temperature up to 90 °С Used for preliminary and final filtration
EPV.S	Glass microfiber	0.5	Depth Pleated	Rigid matrix High porosity Absolute retention efficiency Multiple regeneration Operating temperature up to 90 °С Used for preliminary and final High filtration capacity Used for final filtration
EPV.SС	Fiberglass/ cellulose/ polypropylene combination	1.0; 0.8	Depth Pleated Hydrophilic	Rigid matrix High porosity High micro particles adsorption High hydrophilicity (filtration by gravity is available) Operating temperature up to 80 °С Max flow rate at low pressure drop (low cost) Used for preliminary filtration
EPM.PS	Polyethersulfone	0.20, 0.45, 0.65	Membrane Pleated Hydrophilic	Wide chemical compatibility (pH 1-14) Excellent thermal stability (up to 100 °C in water) Highly asymmetric structure Longer service life due to increased surface area up to 0.76 m2/250 mm height Multiple regeneration Used only as a finishing filter in combination with an effective pre-filter
EPM.K	Nylon	0.2; 0.45; 0.65; 0.8; 1.0	Membrane Pleated Hydrophilic	Wide chemical compatibility (pH 3-14) Natural hydrophilicity High flow rates due to increased surface area up to 0.85 m2/250 mm height Used only as a finishing filter in combination with an effective pre-filter