Xiamen Daily focuses on the new catalyst of Jiaxin Technology. Xiamen Jiaxin Technology Co., Ltd. has developed non-contact hydrogenation core catalytic technology and has formed an original hydrogen catalytic technology system.

In the laboratory, Liu Shengjie (second from left) is guiding the students to operate and test and evaluate the performance of the catalyst.

Wen/Our reporter Wu Junning Correspondent Yang Guoning Huang Yanan

Figure/our reporter Zhang Qihui

The chemical industry is one of the most widely used areas of hydrogen, and from hydrogen production, hydrogen storage to hydrogen, catalysts are the key. Therefore, the catalyst is also known as the "chip" of the chemical industry ". Aiming at this field, Jiageng Innovation Laboratory will plan to lay out high-selectivity catalyst development and industrial application projects starting from 2022, develop a series of continuous hydrogenation catalysts based on non-contact hydrogenation core catalytic technology, and incubate Xiamen Jiaxing Technology Co., Ltd. (hereinafter referred to as Jiaxing Technology).

At present, Jiaxing Hydrogen Technology has formed an original hydrogen catalytic technology system in the whole industrial chain of hydrogen production (electrolytic water), hydrogen storage (ammonia hydrogen storage) and hydrogen (catalytic hydrogenation and hydrogen fuel cell), providing a complete catalytic technology package solution.

deep tillage continuous hydrogenation catalysis

In the laboratory of Jiageng Technology, three fixed-bed continuous hydrogenation catalytic units continue to operate. Liu Shengjie, head of the high-selectivity catalyst project of Jiageng Innovation Laboratory and executive director of Jiageng Technology, is guiding the students to operate and test and evaluate the performance of the catalyst.

The device in front of us was built with reference to industrial production devices. "The high selectivity of the catalyst means that there are very few impurities and by-products in the catalytic process, the cost and energy consumption are reduced, and the product has higher purity and better quality." Liu Shengjie introduced. At present, the continuous hydrogenation catalyst developed by the laboratory has reached the domestic leading level.

"After the catalyst is filled in, the equipment will operate automatically, and the products will be released while the raw materials are fed in, so it is called continuous hydrogenation catalysis." Liu Shengjie told reporters that compared with the traditional intermittent process, continuous hydrogenation catalytic technology is a process with high production efficiency, stable product quality, constant and easy control of reaction conditions, and has the advantages of environmental protection, energy saving and self-control.

Continuous hydrogenation catalysis technology originates from the core concept of "non-contact hydrogenation" basic research of Zheng Nanfeng team of Xiamen University, and subverts the traditional cognition that the raw material must be in direct contact with the active metal atom of the catalyst at the molecular scale before the catalytic reaction can occur. Based on the second prize of the National Natural Science Award and the key achievements of the national key R & D plan project, the project R & D team continuously optimizes the design of the catalyst structure through the control of the surface interface structure, thereby greatly improving the catalytic selectivity and life, and continuously reducing the amount of precious metals in the catalyst. High selectivity, low cost, high quality, low energy consumption, green and low carbon and other comprehensive advantages.

Innovative catalyst design concept and continuous process, promote the application of enterprises to continuously upgrade the technical route, from the source to avoid the generation of three wastes, and achieve unprecedented new performance, enabling the fine chemical and new materials industry high-quality development.

Explore new areas, new scenarios and applications

Jiaxin Technology continues to focus on the development and application of highly selective hydrogen catalytic technology, using highly selective catalysts to convert hydrogen into high-value chemicals and new materials. Between 2017 and 2022, the project team cooperated with the company to build 8 new production lines, and more than a dozen products have been used in industry. Incubation for just over a year yielded substantial gains.

"We must truly promote the synergy of the innovation chain, industrial chain, capital chain, and talent chain in the fields of hydrogen energy and chemical industry, so that innovation results can be transformed into real productivity." Liu Shengjie said. At present, the continuous hydrogenation catalytic technology of the project team has been selected into the first batch of technical product catalogues encouraged by the petrochemical and chemical industry of the Ministry of Industry and Information Technology. The relevant catalysts have begun to realize the continuous industrial production of 10,000 tons of key new materials, adding more than 1 billion yuan to the application enterprises.

To replace the traditional process of high pollution and high energy consumption with clean hydrogenation catalytic process can reduce the emission of industrial "three wastes" by 95% and realize the high-end intelligent development of application industry. More importantly, high selectivity catalyst is one of the key technologies to break the low-end surplus and high-end shortage of high-performance new materials industry. "Through the original high-selective hydrogenation catalytic technology, it can greatly improve the monomer purity of a variety of new materials, reduce their production costs, and cultivate new quality productivity in the new materials industry." Liu Shengjie introduced that today, the technology of the project team has been successfully applied to the production of new materials such as aramid fiber and polyimide.

In April this year, the scientific and technological achievements of "key technology development and industrialization of hexanediamine high quality by caprolactam method", which was completed by Jiaxin science and technology project team, were identified as the international leader by industry experts of China Petroleum and Chemical Industry Federation. At present, the project has built the world's first 10,000-ton caprolactam-based hexamethylene diamine production plant, stably producing superior hexamethylene diamine and nylon 66 products, filling the gap in the production technology of hexamethylene diamine high quality by caprolactam-based production.

At present, Jiaxing Technology has independently developed low-cost electrolysis water hydrogen production catalyst, low-temperature ammonia decomposition hydrogen production catalyst, high-selectivity industrial hydrogenation catalyst and hydrogen fuel cell catalyst, initially constructed hydrogen catalyst ecology, formed a series of technology systems at the two major industrial ends of hydrogen industry and hydrogen energy, and strived to become a new generation of hydrogen catalytic technology overall solution service provider.