Edible oil nitrogen filling

Nitrogen is the main component of air, and its chemical properties are inert. Using the inert characteristics of nitrogen, it can be filled into edible oil to isolate air and preserve and maintain the flavor of edible oil.

In daily life, the term "oil deterioration" often refers to the oxidation and rancidity of oil; The reason for this phenomenon is that the "unsaturated fatty acid" in the oil oxidizes under the action of light and oxygen, and decomposes into low-molecular aldehydes, ketones, acids and other products with the flavor of Hara. This deteriorated oil is not good for human health.

In order to effectively prevent the oxidation of oil, people have come up with the technology of nitrogen filling for preservation. In short, it is to fill the oil tank, filling or bottled edible oil with nitrogen to replace the oxygen originally existing in the air; A protective layer of nitrogen is formed to protect edible oil. In addition, nitrogen itself is colorless and tasteless, which does not affect the original flavor of oil. It is also different from synthetic antioxidants, and has no side effects on human health.

Introduction of nitrogen generator process for nitrogen filling of edible oil

According to the principle of pressure swing adsorption, the nitrogen generator uses high-quality carbon molecular sieve as adsorbent to obtain high-purity nitrogen from the air under certain pressure.

PSA nitrogen production process is simply summarized as follows: after pressurization and filtration, the air is sent to the adsorption tower (usually double towers), one tower absorbs nitrogen, the other tower is analyzed and regenerated, and the PLC program controller controls the opening and closing of the pneumatic valve, so that the two towers can cycle alternately to achieve the purpose of continuous production of high-purity nitrogen. HUILIN has been deeply involved in the field of air separation for more than ten years and is a professional solution provider of air separation system.