China Drying Newsletter On December 17, Jilin Petrochemical's complete set of technical complement test for carbon separation was announced and the comprehensive index reached the international advanced level. After harvesting 15 patented technologies, the test work for the Carbon Five Separation Project was completed perfectly.
The industrialization test of the Carbon Five Separation Technology is a key research project undertaken by Jilin Petrochemical to build a carbon 4 and carbon 5 processing base. As the leading project for the construction of Jilin Petrochemical's carbon 5 base, the technology has been undergoing its first industrialization test in 2009. Jilin Petrochemical has developed a brand-new process and supporting polymerization inhibitor system and solvent regeneration technology, which can be separated from the C5 fraction. Diolefin products. The purity of isoprene is 99.89%, the yield is 92.31%, the purity of piperylene is more than 79%, and the purity of dicyclopentadiene is more than 95%. The yield is 89%.
Through a large number of experimental studies, the project team worked out relevant process control parameters of the unit, developed a polymerization inhibitor and a polymerization inhibitor technology, and adopted new technologies to effectively reduce the residence time, eliminate dead angles, and prevent self-aggregation. The polymerization inhibitor developed by the project team in the carbon 5 separation process has been applied and verified in industrial test equipment, and the polymerization inhibitor effect is good.
On September 11, the project passed the technical evaluation; on October 31st, the 250,000-ton/year Carbon Five Separation Process Technology Software Package passed the review; on November 28, the project was approved by the experts organized by the China Petroleum Technology Management Department; December On the 17th, the supplementary test was completed.
Cheng Yanhua, carbon five separation project manager, said: “In the process of technology development, we not only applied for seven patents, but also established a mechanism model. The simulation calculation results are basically consistent with the results of the model test, which is the optimization of future process and industrial equipment. The scale-up design process lays a foundation, and relying on this model, in the future, the adjustment of industrial devices can basically be carried out without using a test, but can be realized by direct computer simulation.â€
Li Zheng, deputy director of the Jilin Petrochemical Research Institute, told the reporter: “In the past, the Jilin Chemical C-5 resource was a hydrogenation and ethylene cracking technology route. After the C5 processing base is completed, it will form isoprene with the separated isoprene. Rubber, using cyclopentadiene, piperylene as a new pattern of petroleum resin, not only makes the use of resources more reasonable and adequate, adds value added, but also greatly promotes the industrial restructuring of Jilin Chemical and the scientific layout of the industrial chain. â€
It is understood that carbon 5 deep processing is becoming a new hot spot in the development of China's chemical industry. On the one hand, with the expansion of China’s ethylene scale, domestic ethylene production in 2010 will be able to produce 2 million tons of carbon 5 resource per year, and isoprene can be separated. About 300,000 tons/year, the deep processing of by-product carbon C5 fractions has become an urgent problem to be solved; on the other hand, China's natural rubber imports far exceed the safety cordon, and can be used to produce natural rubber substitutes, isoprene rubber. .
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