Shandong Liaocheng Kewei Chemical Instrument Co., Ltd. is a domestic technology enterprise specializing in the research and development, design, production, sales, and after-sales service of products using palladium diffusion to purify hydrogen gas. The company was registered and established in Fenghuang Industrial Park, Liaocheng City, Shandong Province in July 2017, with a registered capital of 5 million RMB. The company aims to create a hydrogen purification capability with a purity of 99.9999% or higher. This equipment achieves a high level of hydrogen purification and is a new energy enterprise with core technology and independent intellectual property rights. The company has made breakthroughs in stable production processes, quality improvement, energy conservation and consumption reduction. The company has formed an annual production capacity of 1000 units and the entire facility has achieved continuous, stable and economical production. The BG series gas generation device, gas purification device, and palladium diffusion hydrogen purification device have been successfully applied in various research units of domestic colleges and universities, petrochemicals, light industry, electronics, environmental monitoring, medical and health, photovoltaics, materials science, polycrystalline silicon, monocrystalline silicon, synthetic diamond, synthetic diamond, chromatography, etc. The laboratory, laboratory, and analysis room provide a small CNC palladium tube diffusion purification instrument developed for refining crude hydrogen into high-purity hydrogen. In addition, one machine can be equipped with multiple gas chromatographs, working continuously without interruption, with automated program control, and a hydrogen purity of over 99.9999%. Long service life is currently the ideal replacement product for laboratories, testing rooms, and analysis rooms. This marks a breakthrough in device stability, technological innovation, and cost reduction and efficiency improvement for the company, and its technological level has reached the world's highest level.

The company is based on the development concept of technology as the driving force, actively building a technology innovation system, using the palladium material engineering research and development center as a carrier, introducing professional talents in the industry, equipping hardware facilities, accelerating the pace of technology innovation platform construction, and researching, exploring, absorbing and transforming earlier processes for palladium material production. The Palladium Materials Engineering Research and Development Center was recognized by Shandong Province as the Shandong Province Palladium Diffusion Hydrogen Purification Device Research and Development Center in 2017.

At present, with high attention and strong support from governments at all levels, the production, construction, and operation of the palladium diffusion hydrogen purification device project produced by Kewei Chemical Instrument are progressing smoothly. Nowadays, the company is constantly improving its processes and optimizing its construction, striving to build a domestic backbone modern new energy enterprise with core technology and independent intellectual property rights, characterized by high hydrogen purity (over 99.9999%) and large purification capacity. The company adheres to the concept of "pursuing excellence, promoting innovation, showcasing vitality, and building a brand", making positive contributions to promoting regional economic construction, optimizing and upgrading industrial structure, developing technology industries, accelerating the transformation of resource advantages into economic advantages, and expanding employment channels.