The Development History of Pressure Swing Adsorption (PSA) Oxygen Generator

Tracing back to the origin of pressure swing adsorption oxygen production technology, China actually conducted research and development earlier. The 1970s was the peak period of China's PSA separation air oxygen production technology development. More than ten units across the country have successively conducted experimental research on pressure swing adsorption oxygen production technology and established several sets of industrial experimental equipment.

During this period, most of the pressure swing adsorption oxygen production equipment developed used adsorption processes above atmospheric pressure and desorption processes at atmospheric pressure, with two to four adsorption towers; Before entering the adsorption tower, the air undergoes dehydration pretreatment; The equipment has poor reliability and cannot operate continuously and stably, resulting in the scrapping of most of the equipment; And the technical and economic indicators are outdated.

In the 1980s, the development of pressure swing adsorption oxygen production technology in China once again entered a low point.

In 1995, Kunshan Jinhu Machinery Co., Ltd. built a VPSAO1000Nm3/h oxygen concentrator at Luoyang Iron and Steel Plant in Henan Province, marking the official entry of pressure swing adsorption into the industrial field in China and the high-speed development period of pressure swing adsorption in China.

The 1990s was a period of rapid development in China's pressure swing adsorption oxygen production technology, with the technology gradually maturing and even many comprehensive technical and economic indicators approaching advanced levels abroad. China's pressure swing adsorption oxygen production technology has moved beyond the laboratory and entered the practical stage, and through continuous research and development, it has shown a rapidly changing development trend. However, overall, there is still a certain gap between China's oxygen concentrators and the international advanced level in many aspects. Such as research on new high-performance adsorbents, improvement of adsorption processes, theoretical analysis and establishment of mathematical models, quality monitoring and automation control, and many other aspects.