Pressure disinfestation with CO2 is a recognized process for the environmentally friendly treatment of foodstuffs against natural pests. In the gas recovery of CO2 gas, the hermetically gas-tight HAUG compressors play a central role.
Pressure disinfestation is a recognized process for the environmentally friendly treatment of foodstuffs against natural pests such as maggots, moths, beetles, and their eggs and larvae. The process reduces food loss and ensures hygiene and quality. Depending on the type of pest and food, the process parameters such as disinfestation gas, pressure, and running time are determined individually. Disinfection is performed with nitrogen or CO2 gas. Disinfection with CO2 gas is more efficient and faster compared to nitrogen but has higher requirements on the process equipment. Among other things, gas-tight, pressure-resistant containers and a gas recovery system are required.
In the gas recovery of CO2 gas, the hermetically gas-tight HAUG compressors play a central role. The HAUG compressors ensure leakage-free recovery of CO2 gas. The magnetic coupling drive enables wear-free and technically permanently gas-tight operation.
The oil-free and dry-running compressors ensure the oil-free quality of the compressed CO2 gas, which is in direct contact with the food.
The operation is highly efficient due to the flexible suction pressure of the compressors. The compressor starts gas recovery at the highest suction pressure and operates all cylinders in single-stage mode at the highest possible compressor delivery rate. Gradually, the suction pressure decreases, and the compressor switches to a 2-stage compression operation. In this way, compressor compression temperatures and volume flow are always optimized. The operating parameters vary depending on the specific recovery conditions defined by the customer.
The gas recovery of CO2 gas during the disinfestation of food is an essential contribution to environmental protection. Without gas recovery, tons of climate-damaging CO2 gas is emitted into the atmosphere every day.
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