Sichuan Techairs Co., Ltd. (formerly known as “Yalian Technology”) operates as a high-tech enterprise specialized in R&D and engineering transformation of gas production, separation and purification technologies. The Company’s technology scope mainly covers temperature swing adsorption, pressure swing adsorption, wet process, shallow cooling, copious cooling, rectification and other gas separation.

Techairs engages in technology R&D, specialty design, project general contracting, production and after-sales service of special materials, and provides a complete range of technical supports and engineering services for clients in such industries as petroleum, natural gas, coal chemical, fine chemical engineering, biochemical engineering, industrial gas and ferrous metallurgy.


Though boasting a strong engineering transformation platform, based on the core R&D technology developed by ourselves, Techairs widely integrates other domestic and foreign mature chemical units, so as to provide customers with a complete set of technical services with market competitiveness. Hydrogen generation technology and products Fuel ethanol production technology gas separation, purification technology and products

Special materials and equipment

Core Value: High-end technology creates high-end value

  • Equipment construction

  • Adsorbent

  • Special program control valve



Through nearly 20 years of efforts and innovation, Techairs is in the forefront of the industry in technological innovation and engineering improvement. 188 patented technologies and dozens of national and provincial awards represent the achievements of our efforts, and many new technologies have been put into practical use.


In the future, Techairs will continue to uphold the excellent concept of "technology creates value, precision wins the future ", and strives for the high value use of global new energy.