History of Variable Pressure Adsorption Oxygen Generator

The world's early producers of oxygen generators (variable pressure adsorption oxygen generators) were Germany and France.

In 1901, the German company Linde established a cryogenic equipment manufacturing workshop in Munich, and produced a 10m3/h oxygen generator (variable pressure adsorption oxygen generator) in 1903.
In 1902, the French company Air Liquide was established in Paris. Following Germany, it started the production of oxygen generators in 1910.

Before the 1930s, basically only Germany and France could produce oxygen generators. At that time, oxygen generators (variable pressure adsorption oxygen generators) could only meet the needs of welding and cutting oxygen and nitrogen production equipment needed for chemical industry. The production of oxygen generators was mainly small and medium-sized, with a capacity of 2m3/h to 600m3/h and about 200 varieties. The oxygen generator process used is high-pressure and medium-pressure process.
From 1930 to 1950, in addition to Germany and France, other countries such as the Soviet Union, Japan, the United States and the United Kingdom also began to produce oxygen generators. During this period, with the development of production, the application field of oxygen generators (variable pressure adsorption oxygen generators) was expanded and the development of large oxygen generators was promoted. As the electricity and metal materials required to produce 1 m3 of oxygen in large oxygen generators were higher than those of small and medium-sized oxygen generators, the variety of large oxygen generators increased more from 1930 to 1950, such as 5000 m3/h in West Germany, 3600 m3/h in the USSR and 3000 m3/h in Japan. the processes used at that time, in addition to high and medium pressure, began to use high and low pressure processes. In 1932, Germany used oxygen generators for the first time in the metallurgical and ammonia industries.
After 1950, in addition to the oxygen generators (variable pressure adsorption oxygen generators) produced in the above countries, there are China, Czech Republic, East Germany, Hungary, Italy, etc. (China is a late developer, all are deep-cooled).
Due to the development of steel industry, nitrogen fertilizer industry and rocket technology, the consumption of oxygen and nitrogen has increased rapidly, which has promoted the large-scale development of oxygen generators. Since 1957, 10,000m3/h oxygen generators have been introduced one after another. since 1967, according to incomplete statistics, there are 87 large oxygen generators above 20,000 m3/h, the larger unit is 50,000 m3/h, and the larger unit is under development.
In the past 20 years, the product range has increased rapidly and gradually formed a series. For example, West Germany Linde's large oxygen generator has 1000 ~ 40000m3 / h typical products; Japan kobelco has OF series; Japan Hitachi manufacturing all TO models; Japan Oxygen has NR type; Britain has 50 ~ 1500 tons / day series products. At the same time, large oxygen generators basically use the full low pressure process.
In short, the development of oxygen generator (variable pressure adsorption oxygen generator) is an imperfect process, and the equipment has developed from small and medium-sized to large. The process has developed from high pressure (200 atmospheres), medium pressure (50 atmospheres) and high and low pressure to full low pressure (6 atmospheres), thus reducing the unit power consumption and metal material consumption of the oxygen generator and extending the operation cycle.


Post time: Feb-21-2022

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