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Recently, the Ministry of Science and Technology has issued the "12th Five-Year Plan" for the development of high-performance membrane material technology, and proposed the development goals of membrane materials during the "12th Five-Year Plan" period, namely, the realization of 5 to 8 kinds of key membrane materials made in China and the establishment of a membrane production line. From 3 to 6, 100 billion yuan will be generated by 2015. Industry sources pointed out that from the “planning” we can see that in the next few years, China will strive to break through key technologies such as high-performance reverse osmosis membranes for seawater desalination, high-performance separation membrane materials, and ion-exchange membrane materials to promote membrane materials in water resources. , petrochemicals and other related industries.

High-performance reverse osmosis membrane The Secretary of the China Membrane Industry Association Petroleum and Chemicals Membrane Technology Application Committee Secretary-General Yan Yan Zhai said in an interview with reporters that at present, the largest quantities of oil and chemical industry use are ultrafiltration membranes and reverse osmosis membranes. The permeable membrane is almost entirely dependent on imports. It is understood that in June of this year, the high-tech production technology of large-scale reverse osmosis membrane materials for the national “863” project undertaken by Guiyang Times Wharton Technology Co., Ltd. and the Institute of Chemistry of the Chinese Academy of Sciences was launched. According to industry sources, the completion of the project will enable China's seawater desalination reverse osmosis membrane to achieve large-scale production and application. The price of equivalent performance membrane components will be 20% lower than that of imported membrane products, and the pass rate of seawater desalination membrane components will increase from 30% to 80%.

"Planning" clearly stated that in the field of water resources, China will focus on breakthrough production of high-performance reverse osmosis membranes for seawater desalination, nanofiltration membranes for water purification, and membrane bioreactor membranes for wastewater treatment. Among them, to meet the needs of seawater desalination, brackish water desalination and other technologies for high-performance reverse osmosis membrane materials, focus on the development of high-performance polyamide reverse osmosis membrane materials; research and development of anti-pollution, anti-oxidation, solvent-resistant reverse osmosis membrane materials; Reverse osmosis membrane element rolling packaging technology, construction of reverse osmosis membrane scale production line with independent intellectual property rights; research of key technologies for large-scale industrialization of seawater desalination membrane materials, development of large seawater desalination membrane elements; encourage the development of high desalination seawater desalination reverse osmosis membrane Material, forward osmosis membrane material, membrane distillation technology, etc.

In addition, during the “Twelfth Five-Year Plan” period, China will also focus on building demonstration projects for desalination and comprehensive utilization of seawater in industrial parks, including reverse osmosis pretreatment, reverse osmosis seawater desalination, brine reprocessing, park wastewater treatment, and water reuse. Seawater integrated utilization integrated system.

High Performance Separation Membrane China's chemical and petroleum industries, such as waste water treatment and recycling, crude oil processing, petrochemical production and other industries, the organic solvent recycling treatment, the urgent need to develop solvent-resistant high-performance separation membrane materials. Dehydration, decarbonation, and desulfurization of hydrogen in the use and transportation of natural gas, as well as the clean utilization of coal, urgently require the development of high-performance gas separation and purification membrane materials.

Party Yanzhai told reporters that in accordance with the "plan" requirements, China will vigorously develop domestic high-performance separation membrane materials. For steel and metallurgy, chemical and pharmaceutical, bio-engineering, and other related fields, we will focus on the process-enhanced membrane separation process and develop and form membrane integration technologies. In the chemical and petrochemical fields, we will develop an engineering technology that combines the important reaction and membrane separation process to build a membrane reaction. Complete sets of application demonstration projects.

At the same time, China will focus on the development of hydrogen-permeable and oxygen-permeable gas separation membrane materials, especially composite palladium membrane materials for high-purity hydrogen production and high-purity oxygen Preparation of mixed conductor oxygen permeable membrane materials; development of gas separation membrane materials for natural gas purification and comprehensive utilization; development of membrane materials for the separation and capture of greenhouse gases, especially fixed carrier membrane materials for the separation of carbon dioxide; development volume Separation membranes and hollow fiber composite membranes scale continuous production technology; encourage the development of nitrogen-enriched membrane materials.

Ion Exchange Membrane For the major needs of the chlor-alkali industry, the "planning" proposes to focus on breaking through the perfluorinated ion exchange membrane engineering technology to further improve the membrane performance; focus on the application of fuel cells, energy storage cells and power batteries, high-performance development , low-cost ion exchange membrane materials and solid oxide fuel cell membrane materials; for the needs of acid and alkali recovery, the development of bipolar membrane and diffusion dialysis membrane scale preparation technology and complete sets of equipment to achieve mass production.

Zhang Yongming, a professor at Shanghai Jiaotong University, said that perfluorinated membranes are the most important material for hydrogen and oxygen fuel cells. With the development of alternative and clean energy strategies in countries around the world, fuel cells represented by hydrogen energy have become the main development direction, especially The constant acceleration of the application development speed of fuel cell electric vehicles has brought a huge market space for the industrialization of perfluorinated ion exchange membranes.

At present, in the field of perfluorinated ion exchange membranes in China, the technology is maturing, but it is necessary to expand production applications. During the “12th Five-Year Plan” period, China will focus on the needs of the chlor-alkali industry, fuel cells, energy storage batteries and power batteries, and focus on the development of high-performance ion-exchange membrane preparation technologies and industrial application technologies in the chlor-alkali industry to develop high-performance, low-cost batteries. Use ion exchange membranes; encourage the development of new types of heat-resistant ion exchange membranes, anti-peroxide oxidation hydroxide ion exchange membranes, and hydroxide ion-conducting ion exchange membrane materials.

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