Filtration of cognacs

 Main applications of Technofilter products and processes in producing cognac beverages

? Polishing filtration before filling

? Removal of excess amounts of metals (Ca, K, Fe, Cu, etc) for beverage stabilization

? Improvement of organoleptic properties of beverages

Various processing arrangements for the filtration of cognac beverages

We suggest that the polishing filtration of cognac beverages before filling should be implemented as a two-stage filtration using cartridge filters. The prefilter/final filter combination increases reliability of the process and ensures maximum capacity, a long service life and economic operation of the whole system.

 Technofilter offers several combinations of microfilters of high -tech materials for various grades of cognacs.

 The filter media being used are beneficial for the preservation of all organoleptic properties of the beverage.

* the system is selected depending on the intended grading of the beverage

The Optimum system is composed of high-efficiency pleated depth filters made of polypropylene and glass microfibre and features low cost, an extended service life without reconditioning and a high retention capacity for microparticles 0.9 μm or more in size. The filter elements display superior wettability and inertness with regard to alcohol-containing liquids. They can be operated at low differential pressures. They impart good transparency and brilliance to the beverages.

The Elite system is composed of the high-efficiency pleated glass fibre depth prefilter EPV.STs (ЭПВ.СЦ) and the high-capacity PES membrane EPM.PS (ЭПМ.ПС) having 99.9% retention efficiency of 0.45 (0.65) μm particles. The surface mechanism of particle retention used by the membrane filter elements fully rules out penetration of retained particles into the filtrate. Highly selective membrane filters impart to the cognac beverages a special brilliance and a noble colour, contribute to the development of an exquisite flavour and additional tinges, considerably increase the filling stability.

Brief specification of Technofilter's filter elements used for prefiltration and final filtration of cognac beverages

 Stabilization of cognac beverages by removing excess amounts of metals (Ca, K, Fe, Cu, etc), that result in haziness and lower filling stability, is carried out using EPSF.T (ЭПСФ.Т) cartridge sorptive filter elements.

The medium used in EPSF.T (ЭПСФ.Т) filter elements is a special cation exchange resin. The medium offers high capacity and increased radiation, thermal and chemical stability. The sorbent is insoluble in water and solutions of hydrochloric and nitric acids. It can be used in water-organic environments, including alcohols and ethers (esters), as well as in presence of strong oxidizers and deoxidizers.

EPSF.T (ЭПСФ.Т) filter element is a "minicolumn" having the inner core and the outer shell both made of polypropylene, between which cation exchange resin is filled. The direction of liquid flow in the element is longitudinal. The elements are sealed with melted polypropylene at the butts. The elements can be 250, 500, 750 or 1000 mm high. They fit all types of filter holders. Recommended filtration rate is 20 to 40 l/hour per 250 mm high element. Service life depends on initial concentration of metals and pH of the environment.

 All Technofilter's filter elements are produced using a certified quality management system in accordance with ISO 9001:2000 standard.

Accessories of filtration systems

 Filter holders for liquid filters

Technofilter presents DS-5 and DS-8 (ДС-5 and ДС-8) filter holders (NEW series) made of 12Kh18N10T (12Х18Н10Т) stainless steel.

 Features

? High-quality finishing of inner and outer surfaces

? Easy access to internal cavities for visual inspection and washing

? No hidden or hard-to-reach cavities owing to extra lightweight spacer

? No stagnant zones

? Complete evacuation of liquid through drain valve

? Increased accuracy and finishing of nests for adaptors and of surfaces for sealing parts ensure high impermeability of boundaries between the feed, the filtrate and the outer environment

? Simplified on-site assembly owing to hinged connection of pipe sockets to the base. The filter holder is provided with pressure gages for monitoring of flow resistance.

Specifications

Filtration systems

On customer's request, Technofilter produces manually or automatically controlled systems UPF.R or UPF.A (УПФ.Р or УПФ.А) on the basis of NEW series multicartridge filter holders, designed for various flow rates (0.5 to 16.0 m³/hour or more). Technofilter designs, fabricates and assembles the systems in accordance with individual requirements of the customer.

The systems are compact, mobile and easy to operate. They can be installed permanently on a specific position, on a frame or on a mobile carriage. The systems consist of several filtration units, are completely assembled (pumping unit, measuring equipment, control valves, piping, etc) and are ready for operation.

"Absolute-quality" automatically controlled systems

"Absolute-quality" automatically controlled systems (UPF.A/УПФ.А) intended for final filtration before filling enjoy special popularity with customers at distillery and wine-making plants.

The standard system is based on a 2-stage filtration concept. The systems can be additionally provided with a filter unit for preparation of service media. The systems vary in the set of components (selected options) and the degree of automation. Everything depends on the beverage to be filtered and individual requirements of the customer.

Advantages

? Steadily high quality of beverages

? Smooth start-up, maintenance of prescribed pressures at the input and output of the system

? No hydraulic blows

? Optimum set of options, compact size

? Full exhaustion of service life of filter elements

? Touchpad for real-time control of all filtration parameters

? Cleaning of filter elements with high-purity water or reconditioning with washing solutions directly inside the system without using any extra pump

? Removal of residual cognac with sterile compressed air

? Reliable component parts

"Absolute-quality" systems make the process of filtration extremely graphic, reliable and cost-efficient for the customer. The user can have complete control over the process of filtration and feel assured of the final product quality.

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