If fruit and vegetables are stored in a refrigerator cell for preservation, oxygen O2 is consumed and therefore carbon dioxide CO2 rises, as a consequence of respiration. An excessive concentration of CO2 causes irreparable damage to the goods. With the adsorber of carbon dioxide one aims at eliminating the excessive CO2 and adding the necessary oxygen at the same time.

WORKING CRITERIA OF THE MACHINE

The cell’s air, partly containing CO2, will be sucked by a compressor, filtered in a special tank containing activated carbon and then reintroduced to the cell without CO2. Simultaneously, in a second tank containing activated carbon, saturated before with CO2, fresh air will be introduced, which separates CO2 from the activated carbon and expels it. This operation, called regeneration phase, brings the carbon back to the condition of adsorbing the CO2. All this is accomplished

fully automatically by the machine. Furthermore, the addition of fresh air in the cell, during the exchange between the two tanks, will be avoided by a special device. An electric board, placed on the machine, offers the possibility to connect it with more cells (from 1 to 30), and ensures the programmed functioning without the continuous presence of an operator. It is possible to set different working times for each cell (depending on the necessities), in various sequences.

ADVANTAGES OF THE ADSORBER

Precise testing and calibrating of the machine, in relation to the necessities of each plant at the moment of the installation. A product of tested efficiency, with user instructions and easy maintenance. Activated carbon of high adsorbing capacity and duration. No oxygen increase in the cell during operation, fast assistance service from any distance. The consumption capacity of the adsorber is 200 - 300 - 400 - 500 Kg CO2/24h.