Energy saving and emission reduction, innovative development, nine days of high-tech two technologies unveiled at the China Film Industry Development Summit!
Release time:
2020-09-21
The 2020 China Membrane Industry Development Summit and (the third) Membrane Industry "Mata Lake" Summit Forum with the theme of "technological innovation, industrial linkage, collaborative integration, and win-win cooperation" ended successfully in Huantai County, Shandong Province. Vice President Xing Weihong of Nanjing University of Technology introduced in detail Jiangsu Jiutian High-tech Co., Ltd. (referred to as "Strategic Research on Membrane Technology to Promote Green Development of Petrochemical Industry" in the theme report of the conference.Nine Days High Tech) self-developed"New Process of Pervaporation Membrane Isopropanol Production", and"Purification of Tetrahydrofuran (THF) Solvent by Pervaporation Membrane"Two technologies have attracted wide attention from participants.
▲ Vice President Xing Weihong made a keynote report
New Process of Pervaporation Membrane Isopropanol Production
Isopropanol is an important chemical product and raw material, which is widely used as solvent or extractant. The traditional production and recovery using azeotropic distillation, extractive distillation and other dehydration separation process, complex operation, high energy consumption and serious pollution, resulting in most manufacturers as a waste treatment.
The new pervaporation membrane isopropanol production process independently developed by Jiutian Gaoke adopts inorganic pervaporation molecular sieve membrane to dehydrate the ternary azeotrope of acetone-isopropanol-water produced in the production process from 12wt% water content to 0.5wt%, and then return to the front end for re-reaction.The process can significantly improve the separation efficiency and reduce the process energy consumption.It has been successfully applied in Shenyang Sanjiu Pharmaceutical Co., Ltd., Ruiyang Pharmaceutical Co., Ltd., Qianhui Pharmaceutical (Anhui) Co., Ltd., Changzhou Yabang Qihui Pharmaceutical and Chemical Co., Ltd. and other enterprises, significantly improving the yield of isopropanol (>5%) and the added value of products, providing a new solution for the production of isopropanol in the pharmaceutical and chemical industry.
▲ Production process
Purification of Tetrahydrofuran Solvent by Pervaporation Membrane
In the petrochemical and pharmaceutical chemical industry format reaction process, the water content of tetrahydrofuran solvent is very high (generally less than 500ppm), and the solvent needs to be dehydrated and reused after use. The traditional pressure swing distillation method used in the dehydration of tetrahydrofuran, the steam consumption per ton of product is more than 1.5 tons, the recovery rate of tetrahydrofuran product is low, and the tower kettle is easy to produce peroxide, which brings potential safety hazards in operation.
In view of the above problems,Nine days high tech independently developed pervaporation membrane using tetrahydrofuran (THF) solvent purification, shortening the separation process of THF and water, increasing the product recovery rate by 4 ~ 5%, and consuming only 0.35 tons of steam per ton of product.At the same time, due to the operation at low temperature and low pressure, the system safety is better. At present, the project has been successfully applied in dozens of enterprises, such as Chongqing Tiandi Pharmaceutical Co., Ltd., Zhejiang Lianhua Technology Co., Ltd., Changzhou Jialke Pharmaceutical Group Co., Ltd., Qilu Andi (Linyi) Pharmaceutical Co., Ltd., and achieved good economic and social benefits.
▲ Membrane device
Compared with the traditional distillation, adsorption technology,Nine days high-tech has completely independent intellectual property rights of the pervaporation membrane separation technology is more efficient, energy saving, economic and environmental protection.. Based on the continuous innovation and breakthrough of technology, Jiutian Gaoke has won high recognition from the market and has been recognizedNational high-tech enterprises, national intellectual property advantage enterprises, China's petroleum and chemical industry technology innovation demonstration enterprises, China's membrane industry cutting-edge enterprises, Nanjing City contract-abiding enterprisesWait. The company's related technical achievements won2012First Prize of Technology Invention of China Petroleum and Chemical Industry Federation, First Prize of Science and Technology Award of China Film Industry Association in 2017, First Prize of Science and Technology Award of Jiangsu Province in 2019and many honors.
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