After two years of technical research and repeated trials, Zhejiang University Ningbo Science and Technology Innovation Center of olefin polymer advanced manufacturing technology innovation demonstration platform independently designed and built the first set of ultra-high pressure continuous polymerization experimental platform in China, in order to crack the "bottleneck technology" problem and realize the domestic replacement of key technologies has taken a key step.
Face the "neck technology" problem, break through the blockade
In the face of the new situation of globalization full of uncertainty and the new demand for domestic development of high-end manufacturing, many key industries such as new materials and new energy encouraged by national policies need high-pressure polymerization products to provide important support. However, the complete set of technology of ultra-high pressure polymerization process is completely monopolized by large foreign oil companies, and the required equipment, meters, pipe fittings and so on are almost all dependent on imports. In the face of the urgent needs of the country for the development of ultra-high pressure polyolefin technology and equipment, Zhejiang University Ningbo Science and Technology Innovation Center olefin polymer advanced manufacturing technology innovation demonstration platform closely combined with the national strategy, industrial needs and development problems, on the basis of long-term scientific research, 2020-2022 independently designed and built the first set of ultra-high pressure continuous polymerization experiment platform in China. The maximum reaction pressure is 350MPa, the maximum reaction temperature is 300℃, and two operating modes of continuous polymerization and intermittent polymerization can be realized. Based on the UHV continuous polymerization experimental platform, high pressure free radical homopolymerization and copolymerization of ethylene can be carried out, involving basic physical property data measurement, reaction kinetics research, initiator formulation optimization, modulator evaluation, new product development, etc., providing theoretical and experimental support for UHV free radical polymerization process technology innovation and complete set of technology development. It will be used for the research and development of general and high-end polyolefin materials, such as ultra-high voltage cable insulation material (LDPE) and shielding material (EBA/EVA), ethylene-acrylic acid series copolymer (EMA), iolymer and other serialized products. At present, the platform has received extensive attention from the polyolefin industry, and a number of petrochemical companies have also taken the initiative to seek cooperation opportunities.
As one of the landmark achievements of Ningbo Science and Technology Innovation Center of Zhejiang University, the ultra-high pressure continuous polymerization experimental platform will be open and shared, serving the chemical branch, materials branch, energy branch, food branch and other faculty teams, and playing an important role in promoting the overall discipline construction, talent training and scientific research strength of Ningbo Science and Technology Innovation Center.
The ultra-high pressure continuous polymerization experimental platform has a positive significance for the construction and development of chemical engineering discipline in our university, and will become an important technical support for breaking the foreign technology monopoly and realizing the innovation of ultra-high pressure process technology and the development of complete sets of technology.
Organized scientific research has yielded remarkable results
Zhejiang University Ningbo Science and Technology Innovation Center "olefin polymer advanced manufacturing technology innovation demonstration platform" with the purpose of "application technology reflects important, academic research based on the frontier", aims to meet the actual needs of industry, condense, focus, and solve the key scientific and engineering problems involved in the design, development and production process of polyolefin products. To build an advanced manufacturing technology innovation demonstration platform for olefin polymers.
The team has strong research strength and scientific and technological innovation leads the future. Based on and supported by the Chemical Engineering and olefin Polymerization research group of Zhejiang University and the advanced manufacturing technology innovation demonstration platform of Ningbo Science and Technology Innovation Center, the team closely links Zhejiang University Hangzhou International Science and Technology Innovation Center, gathers resources, collaborates with many places and develops together. We always adhere to the construction concept of product development as the guidance, technology creation as the lead, achievement transformation as the starting point, theoretical basis and transformation and application.
The leader of the platform is Professor Wang Jingdai from the School of Chemical Engineering, Zhejiang University. The research group of chemical engineering and olefin polymerization has a solid foundation and strong technical force, and has nearly 40 years of research history in the field of polyolefin. Participated in the development of the first domestic 350,000 tons/year gas-phase polyethylene process, 300,000 tons/year gas-liquid polyethylene process, 300,000 tons/year grout method polyethylene process, etc., participated in the licensing and construction of 15 sets of large-scale polyethylene complete sets of technology, residual pressure expansion cryogenic method green and efficient recovery of polyolefin emission gas new technology in 36 sets of large-scale polyolefin devices. It has won the second prize of National Science and Technology Progress Award and the second prize of National Technology Invention Award, and a total of 6 provincial and ministerial science and technology progress awards. It has undertaken a number of national key research and development programs, key projects of National Natural Science Foundation, Sinopec, petrochina, ExxonMobil and other technical research projects.
At present, the olefin polymer advanced manufacturing technology innovation demonstration platform has carried out technical cooperation with a number of domestic petrochemical enterprises, and intends to cooperate with Zhejiang University's high pressure equipment specialty to build a research and development base for ultra-high pressure reaction and equipment.
Relying on high energy level platform, leading innovation
Zhejiang University Ningbo Science and Technology Innovation Center "Olefin polymer Advanced Manufacturing Technology Innovation Demonstration platform" ultra-high pressure polymerization reaction laboratory construction goal is to become a high pressure polymerization of new technology, new products and new equipment development of the key support platform, leading the ultra-high pressure polyethylene technology process and engineering innovation.
The olefin polymer Advanced manufacturing technology innovation demonstration platform relies on the College of Chemical Engineering of Zhejiang University, the Joint State Key Laboratory of Chemical Engineering (Zhejiang University), and the Ningbo Science and Technology Innovation Center of Zhejiang University (Ningbo Campus), and has organized scientific research, teaching and achievement transformation.
Since its establishment, with the goal of developing high-end polyolefin materials, the team has carried out a lot of scientific research and technical research in the fields of olefin polymerization reaction engineering, multiphase flow reactor design, catalytic engineering and process integration, and has formed a stable team of interdisciplinary, complementary and advanced teachers. Strive to build an innovative demonstration platform for advanced manufacturing technology of olefin polymers, provide technical services for new product development, new technology research and development, transformation and upgrading of the polyolefin industry in Zhejiang Province, the Yangtze River Delta region and even the whole country, and provide important support for the country to break through technical barriers, solve technical problems and independent research and development of complete sets of technologies. The team has a total of catalyst engineering, polymerization reaction engineering, process optimization and strengthening, polymer product processing engineering and other research directions, covering an area of more than 7,000 square meters, investment of more than 100 million, with advanced analysis and characterization equipment, polymerization reaction base, product development base, advanced facilities, complete conditions, sufficient space, with talent introduction and scientific research of the superior conditions.
