The cryogenic 9000 Nm³/h nitrogen production unit independently developed and manufactured by NUZHUO, after rigorous debugging and operation, has met all the performance indicators as per the design requirements. It was successfully debugged for the first time and officially put into operation. This milestone achievement not only indicates that NUZHUO has reached a new level in its technical strength in the field of large-scale cryogenic air separation, but also injects a strong boost into the global industrial gas market.
Air separation technology is hailed as the "crown jewel" in the field of industrial gases. Unlike the traditional pressure swing adsorption nitrogen production method, cryogenic nitrogen production is based on the difference in boiling points of oxygen and nitrogen components in the air. It achieves large-scale continuous production of high-purity nitrogen through deep cooling and distillation. The 9000Nm³/h nitrogen production unit that successfully completed the debugging this time is a perfect embodiment of this technical approach.
According to the NUZHUO technical team, this unit adopts the company's independently developed sixth-generation cryogenic separation technology. In the core cold box system, it integrates an efficient structured packed distillation tower and aluminum plate-fin heat exchangers to ensure high mass transfer efficiency and heat exchange performance even under extremely large processing volumes. At the same time, the optimized design of the molecular sieve purification system effectively removes moisture, carbon dioxide, and hydrocarbons from the air, providing a reliable guarantee for the long-term stable operation of the unit.During the debugging process, the NUZHUO engineering team precisely controlled the entire process, including compression, pre-cooling, purification, distillation, and output, to ensure that each step was in the optimal condition. Finally, when the unit was operating at full load, the nitrogen purity was stably maintained above 99.999%, and the oxygen extraction rate and unit energy consumption indicators were all better than the design expectations.
The successful commissioning of the 9000Nm³/h nitrogen production unit was no mere coincidence. It represents the concentrated release of NUZHUO's long-term accumulated expertise in the field of cryogenic air separation over the years.
As a high-tech enterprise rooted in Hangzhou, Nuozhu has over 50,000 square meters of modern standard workshops, possessing complete engineering capabilities ranging from process design, core equipment manufacturing to system integration and on-site commissioning. The company's product line covers a full range of cryogenic air separation units from 50Nm³/h to 30,000Nm³/h. Previously, it has successfully delivered multiple large-scale air separation projects, including benchmark projects such as KDN-3000 and KDN-5000.
The successful commissioning of this 9000Nm³/h unit further validates NUZHUO's design and manufacturing capabilities in the ultra-large-scale nitrogen production field. From the precise argon arc welding of the pipelines inside the cold box to the parameter setting of the DCS intelligent control system, every detail reflectsNUZHUO's ultimate pursuit of engineering quality.
High-purity nitrogen is an indispensable basic raw material in modern industry. In semiconductor chip manufacturing, nitrogen is used as a protective gas and carrier gas; in lithium battery production, nitrogen ensures the safety of material processing; in chemical synthesis, pharmaceutical packaging, and metal heat treatment, the purity and supply stability of nitrogen directly affect product quality and production efficiency.
A nitrogen production capacity of 9000Nm³/h means that this device can simultaneously provide stable and reliable high-purity nitrogen supply to multiple large gas-consuming units. For China's rapidly upgrading high-end manufacturing industry, such gas guarantee capabilities have strategic significance. It helps reduce the reliance of downstream enterprises on imported equipment, optimize the regional industrial gas supply chain layout, and create favorable conditions for the agglomeration development of industrial clusters.
NUZHUO
NEW GAS-SMALL-SCALE CRYOGENIC ASU EXPERT
You can find us by follows:
Elena Liu
Tel./Whatsapp/Wechat:+86-15531448603
Email :elena@hznuzhuo.com
