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Home >> Industry Knowledge >> The development of Nitrogen Generator
Nitrogen Generator (also known as oxygen machine, fresh machine) the development of the whole has gone through a catalytic combustion of a carbon molecular sieve adsorption of a fiber membrane separation process of development. 70 years ago at home and abroad nitrogen atmosphere facilities and more choice of machine-type model of catalytic combustion. China was first proposed by the Institute of Coal Chemistry, Chinese Academy of Sciences to develop a successful future in Jiande, Zhejiang and Shanxi Yuci production and other places. Its fundamental principle is based on platinum as a catalyst for propane combustion, and constantly to the introduction of the air consumption of O2, to obtain more pure N2, into the atmosphere cold storage with the plane down, O2 combustion temperature of up to 500 ℃, the water was subject to the N2 before cooling into the atmosphere cold storage, the need to consume a large amount of water and fuel, the operation is not very convenient, is now rarely used.
The end of the 70s by the Changchun Research Institute of Petroleum and Chemical successfully developed the first molecular sieve nitrogen Coke machine. Its fundamental principle is a great surface area of the coke used to be O2 molecular sieve adsorption and discharge high concentrations of N2. From Jilin Agricultural University and China Agricultural University and other units have successfully Atmosphere horticultural products test, soon after extended to all parts of the country. Through the introduction, absorption, digestion, and improve, so that it more perfect, in the preservation community has been widely recognized and applied. The findings show that carbon molecular sieve nitrogen combustion machine is indeed an aircraft-type nitrogen has many advantages, it need not cool the combustion and processing, the operation is relatively simple. However, its body large and need to be replaced, such as carbon molecular sieve is its inherent weaknesses.
80's, with the development of science and technology and raise the level of industrial processes, there is a new generation of nitrogen equipment Nitrogen machine that is membrane separation. It is first of all by the U.S. company Monsanto and Dow Chemical Co., Ltd. successfully developed. This Nitrogen Generator is the heart of a group of very fine hollow fiber membrane components. Compressed air to clean components through the membrane fibers to separate the O2 and N2. This machine produced nitrogen N2-style more than the pure catalytic combustion, the mechanical structure of carbon molecular sieve nitrogen machine than a more simple and automatic control and operation easier, but the price is still slightly higher than the carbon molecular sieve nitrogen machine. This is by far the nitrogen is considered the most advanced equipment in a model.
The end of the 70s by the Changchun Research Institute of Petroleum and Chemical successfully developed the first molecular sieve nitrogen Coke machine. Its fundamental principle is a great surface area of the coke used to be O2 molecular sieve adsorption and discharge high concentrations of N2. From Jilin Agricultural University and China Agricultural University and other units have successfully Atmosphere horticultural products test, soon after extended to all parts of the country. Through the introduction, absorption, digestion, and improve, so that it more perfect, in the preservation community has been widely recognized and applied. The findings show that carbon molecular sieve nitrogen combustion machine is indeed an aircraft-type nitrogen has many advantages, it need not cool the combustion and processing, the operation is relatively simple. However, its body large and need to be replaced, such as carbon molecular sieve is its inherent weaknesses.
80's, with the development of science and technology and raise the level of industrial processes, there is a new generation of nitrogen equipment Nitrogen machine that is membrane separation. It is first of all by the U.S. company Monsanto and Dow Chemical Co., Ltd. successfully developed. This Nitrogen Generator is the heart of a group of very fine hollow fiber membrane components. Compressed air to clean components through the membrane fibers to separate the O2 and N2. This machine produced nitrogen N2-style more than the pure catalytic combustion, the mechanical structure of carbon molecular sieve nitrogen machine than a more simple and automatic control and operation easier, but the price is still slightly higher than the carbon molecular sieve nitrogen machine. This is by far the nitrogen is considered the most advanced equipment in a model.