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Chenguang Institute won the award for tetrafluoroethylene cracking method
The external heating type tetrafluoroethylene (F22) and water vapor mixed pyrolysis method, along with the associated heating device developed by Zhongyao Chenguang Research Institute of Technology, has recently been honored with the 10th China Patent Excellence Award. This recognition highlights the innovation and practical value of the technology in the field of chemical production.
Currently, the production of tetrafluoroethylene (TFE) is primarily carried out through two main methods: air tube cracking and steam dilution cracking. Among these, the steam dilution cracking method is widely used in industrial settings due to its high conversion efficiency and reduced formation of by-products. However, this process still faces several challenges, including the large volume of steam required, high energy consumption, and a relatively short service life for the heating tubes.
To address these limitations, Chenguang Institute introduced an advanced external heating method that combines superheated steam with F22 before feeding it into a specially designed external heating reaction unit. This innovative approach not only improves the efficiency of the cracking process but also enhances the overall stability and control of the system. After the cracking reaction, the resulting mixture undergoes quenching and distillation to produce high-purity TFE monomer.
This breakthrough technology offers several advantages over traditional methods. It significantly reduces the performance demands on the furnace tubes, extends their service life, and allows for more precise temperature control during the cracking process. Additionally, the byproduct hydrochloric acid generated can reach concentrations between 10% and 20%, making it more valuable for downstream applications.
In terms of energy efficiency, the new method saves 15% to 30% compared to adiabatic reaction technology, and lowers operational costs by approximately 10%. More importantly, the entire production process becomes more environmentally friendly, supporting the goals of cleaner and sustainable manufacturing. This achievement marks a significant step forward in the development of efficient and eco-friendly TFE production technologies.