WINEBRANE LAB GAS

Application

WineBrane LAB GAS is a system for the accurately in-line management of dissolved gas concentration in wine in laboratory scale. The gas management includes the whole spectrum of simultaneous CO₂ impregnation and oxygen plus nitrogen removal. These are the O₂, N₂ and CO₂ removal in young red wines, the deoxygenation just before bottling or stocking for vinification, refreshing of white and rosé wines with CO₂ during filling or the production of perlé wines. The system can be used in the laboratory for defining the optimum concentration of dissolved CO₂ for the most equilibrated taste of wines respecting their specific flavours and residual sugars in combination with the CO₂ concentration.

Operating principle

The main component of the skid is a hydrophobic (refuses to get wet) membrane system which is not selective for small gaseous molecules due to its defined size of pores but respects the evaporation pressure of each molecule. Only gases with low molecular weight and high evaporation pressure can pass through the barrier, thus, the structural properties of the wine after the degassing remain unchanged, avoiding any losses of aromatic components. The wine flows at the shell side of the hollow fibre membranes where, in the lumen side, a vacuum or CO₂ as sweep gas is applied for gas removal. For impregnation, the CO₂ flows with an overpressure of 0,2 - 0,5 bar to the wine, which is in this case directly dissolved in the wine and, if desired, up to the limit of solubility. 

Design and features

The design and construction of the unit is performed in compliance with the requirements of the food-processing industry:
- Parts in contact with the product: St.St. AISI 316
- Housing: St.St. AISI 304
- Pumps: peristaltic pump for wine and vacuum pump
- Control panel in its own housing in St.St. AISI 304
- Membrane: Hydrophobic polypropylene membrane with FDA certification
The design is CIP cleanable (alkaline solution and disinfectants), units can also be sanitised with hot water.

Options

The WineBrane is available in only one size, manually operated, with flow rates of 50 L/h for the wine flow. Respectively, the limit of solubility for CO₂ can be reached in any case, its concentration depends on pressure and temperature.

Data sheet

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