What are the large chemical fiber enterprises in Xiaoshan?

China Chemical Fiber Industry Green Development Action Plan with "industrial green transformation and upgrading" as the central goal, green design, green manufacturing, green procurement, green fiber products, circular economy, chemical fiber industry green product standards as the starting point, the green concept and technology throughout the whole process of chemical fiber manufacturing. Promote the comprehensive development of green fiber materials, green fiber products, green factories, green parks and green chemical fiber industry chain, and make the chemical fiber industry a model of China's industrial green transformation and upgrading and improve the level of green development. Its basic principles are: driven by scientific and technological innovation, focused on structural optimization, supported by service platform, and guaranteed by standard system.

Development goal

During the "13th Five-Year Plan" period, in accordance with the strategic deployment of manufacturing power construction, the chemical fiber industry will focus on the implementation of the "Made in China 2025" green manufacturing key tasks, focus on the green transformation and upgrading of the industry, accelerate the research and development and industrialization of key technologies, actively build a green manufacturing system, accelerate the green development of the chemical fiber industry, promote the energy saving and consumption reduction of the chemical fiber industry, and achieve cost reduction and efficiency reduction. Increase the effective supply of green products and green services, promote the construction of green fiber labeling and certification system, and enhance the market awareness of green fiber products.

By 2020, the concept of green development has become the general requirement of the whole process of production of chemical fiber industry, the promotion mechanism of green development of chemical fiber industry has basically taken shape, green design, green manufacturing, green procurement, green process technology, and green chemical fiber products will become the new growth point of chemical fiber industry, and the overall level of green development of chemical fiber industry will be significantly improved.

Energy efficiency has been significantly improved. The growth rate of industrial energy consumption has slowed down, the energy consumption per unit product of chemical fiber sub-industries has reached the world's advanced level, and the energy consumption of some products has reached the international leading level.

The level of cleaner production has been greatly improved. The use of advanced and applicable cleaner production technologies and equipment has been basically popularized; the level of cleaner production in industries has been significantly improved; emissions of sulfur dioxide, nitrogen oxides, chemical oxygen demand and ammonia nitrogen have been significantly reduced; and emissions of high-risk pollutants have been substantially reduced.

The level of resource utilization has improved significantly. Water consumption per unit product has further decreased, the comprehensive utilization rate of bulk industrial solid waste has further improved, and the recycling rate of major renewable resources has steadily increased.

Green chemical fiber manufacturing system has been established. Green fiber manufacturing standard system has been basically established, and green design and evaluation have been widely used. Green procurement, green fiber label products have increased significantly, and the industry has initially formed a green supply chain.

The manufacturing capacity of green chemical fiber has been steadily improved. To form a group of core competitive backbone enterprises, a total of 50 key technical transformation projects have been completed, and 20 green chemical fiber demonstration factories, 2 green chemical fiber industrial parks, 2-5 chemical fiber ecological (green) design demonstration enterprises, and 10 green fiber product innovation centers have been created.

The emission intensity of major pollutants in the main product consumption and key (viscose, acrylic, Vinylon) industries of chemical fiber industry has reached the world's advanced level, and some professional green manufacturing levels are in the world's leading position. Form a new pattern of innovation-driven, intensive, efficient and environmentally friendly industry development.

We will step up efforts to eliminate backward production capacity and reduce some excess capacity. By 2020, caprolactam (CPL) production lines that consume 25% more energy per unit than the current advanced value and have 30% higher processing costs will be optimized or eliminated; Optimize or eliminate terephthalic acid (PTA) production lines with 50% higher comprehensive energy consumption per unit than the current advanced value, 29% higher COD emission per unit product, 40% higher solid waste generation per unit product, and more than double the processing cost; Optimize or eliminate the production lines of recycled polyester bottle chips with unit comprehensive energy consumption more than 20% higher than the existing advanced value, wastewater discharge more than 40% higher, COD discharge per unit product more than 10% higher, and processing cost 30% higher.

Establish and improve the green chemical fiber standard system, formulate and publish 10 green standards.

Key areas

(1) Focus on cultivating the green design capability of chemical fiber products

Strengthen the application of key green design technologies in the chemical fiber industry, improve the awareness of green development and ecological (green) design capabilities of enterprises, promote the construction of ecological (green) design systems and technological progress, and promote the integration of ecological (green) design with product innovation and development and technical process improvement. Raw material source Green design

Raw material source Green is mainly composed of two parts. The first is to prepare bio-based synthetic fiber raw materials and synthetic fiber products based on corn, cassava and some crop wastes. Overcome key monomer, polymerization and spinning technologies such as polyethylene furan diformate (PEF), polypropylene glycol terephthalate (PTT), bio-based polyethylene terephthalate (PDT), polybutylene terephthalate (PBT), polylactic acid (PLA) and nylon 56, focusing on raw material replacement technology to achieve large-scale production. Develop low-cost, high-quality bio-based fibers and products.

The second is cellulose fiber, protein fiber, seaweed fiber, chitosan fiber and other bio-based regenerated fibers. Focus on the research and development of new cellulose resources bioenzyme pretreatment technology, pulp and fiber integration technology, high efficiency and uniform continuous dissolution and defoaming preparation technology of high concentration stock solution, high-speed and high uniformity dry spray wet spinning technology, stock solution coloring and fiber dyeing, surface functionalization technology, and solvent recovery, concentration and purification technology. Finally, the preparation of bio-based regenerated fibers can be realized as resources, continuous, large-scale, low-cost and functional. Process green design

Green processing design of high performance fiber. Mainly to achieve low-cost, low carbonization, lightweight processing and preparation. The development of carbon fiber filament large-capacity continuous polymerization and control technology, high concentration, high pressure and high density extrusion, high-speed dry spray wet spinning, steam drafting technology, controlled, homogeneous and efficient low temperature pre-oxidation and carbonization technology, and solvent efficient recovery and treatment technology. With the goal of energy saving and emission reduction in the whole process, new technologies such as polymerization spinning and solvent recovery are integrated with intelligent control to achieve green production of high-performance fibers such as carbon fiber.

In the process of preparing green and environmentally friendly high-strength and high-modulus polyethylene fiber, the new green and environmentally friendly solvent is used to replace white oil and decahydronaphthalene, the process flow is short, the equipment is highly automated, and the system is closed and automatically recycled inside to meet the requirements of green and environmentally friendly zero emission, improve the spinning efficiency and greatly reduce the fiber production cost.

Green processing design of nanofibers. Develop low energy consumption and high efficiency preparation technology. The development of multi-component phase separation spinning, high-speed centrifugal spinning technology, high efficiency biological preparation technology, electrostatic spinning, high efficiency spray mesh technology, multiple structure control technology, and high efficiency homogenization scale engineering technology.

Green processing design of general polyamide and polyester fiber. The development of high efficiency catalyst and polymerization device, dimer control technology, liquid phase viscosity adjustment and de-monomer technology, and high efficiency recovery and utilization of polymeric monomer technology. Through the whole process kinetics study, the formation of dimer and monomer is controlled, and the industrialization melt direct spinning technology of polyamide fiber is broken through using catalysis, doping and liquid phase viscosification technology.

Developing polymerization technology such as "one end and two ends" and "double polyol cycle" green catalysis, application technology of new modules such as filament ring blowing and Wings in pre-drafted wire (POY), fully drafted wire (FDY) and industrial silk, recycling technology of ethylene glycol and acetaldehyde, and flexible preparation technology of differentiated functional polyester fiber; To develop flame-retardant, drip resistant, high imitation cotton and homogeneous fiber and its application complete engineering technology, to realize the flexible preparation of large capacity polyester.

Recycle and reuse fiber green design. The development of efficient continuous textile classification technology, high density drying, conveying, melting technology, melt continuous quality control and viscosity control technology, resource technology of hybrid raw materials, and low VOC, heavy and low metal content control technology. By overcoming the key technologies of physical method, physical chemical method and chemical method recycling, the proportion of polyester fiber recycling is improved, and the recycled fiber becomes the third largest fiber supplier in China's textile materials.

(2) Comprehensively improve the green level of the production process

Adopt energy-saving equipment, develop energy saving and green energy utilization technology, improve energy utilization efficiency; Adopt green process and equipment technology with less pollution and no pollution, reduce or eliminate the generation and discharge of waste and sewage, and carry out comprehensive treatment of "three wastes" of discharged pollutants; Recycle raw materials to reduce the environmental impact of production activities. Energy efficiency improvement

Adhere to the priority of conservation, vigorously promote the revolution of energy consumption, improve the energy utilization efficiency of the chemical fiber industry, promote the cost reduction and efficiency of enterprises, accelerate the formation of green intensive production methods, and enhance the core competitiveness of the chemical fiber manufacturing industry.

With the application of advanced and applicable technology and equipment as a means to strengthen technology and energy conservation. We will comprehensively promote the upgrading of energy-saving technologies in all industries, and further promote special actions to improve energy efficiency in key enterprises. Accelerate the promotion of polyester esterification steam waste heat recovery and reuse technology, polyester, nylon, spandex spinning single-part multi-head spinning technology, screw extrusion electromechanical magnetic heating technology, physical recycling of polyester staple fiber production process of energy saving and emission reduction integrated technology, MVR mechanical steam recompression recovery of polyamide 6 monomer technology, spandex new heat transfer medium technology. We will continue to promote energy efficiency improvement projects for boilers, motors, transformers, air conditioning units and other general equipment, and organize the implementation of intelligent energy-saving plans for compressed air. Accelerate the innovation of processes, technologies and equipment, and promote the transformation of energy conservation in enterprises from partial and single energy conservation to the whole process and system energy conservation.

With the construction of energy management system as the core, improve management and energy conservation. Implement mandatory energy consumption standards, promote the construction of energy management systems in key enterprises, run the energy management system through the entire production process of enterprises, regularly carry out energy measurement reviews, energy audits, energy efficiency diagnosis and benchmarking, explore energy conservation potential, and build long-term mechanisms for energy efficiency improvement. Implement energy efficiency leaders in key industries to lead actions and drive the overall energy efficiency of the industry. Cleaner production promotion

Focus on key pollutants in the industry to carry out cleaner production technology transformation, promote green manufacturing processes, reduce pollutant emission intensity, reduce the use of toxic and harmful raw materials, and promote alternative or reduction technologies in key industries. Guide enterprises to use non-toxic and harmless or low-toxic and low-harmful raw and auxiliary materials in the production process, adopt green fiber manufacturing process, and reduce or avoid the generation of pollutants from the source. Promote the implementation process of green pulping technology and new solvent regeneration cellulose fiber technology in the viscose fiber industry, and gradually expand the scope of implementation.

We will promote technological transformation of cleaner production. In view of major pollutants such as sulfur dioxide, nitrogen oxides, chemical oxygen demand, ammonia nitrogen, smoke (powder) dust, we will actively guide key industries and enterprises to implement technological transformation of cleaner production, and gradually establish an efficient implementation model of cleaner production based on technological progress. Reduce sulfur dioxide, nitrogen oxides, smoke (powder) dust emission intensity. In key areas (Taihu Lake Basin), projects will be implemented to raise the level of cleaner production in key industries, and the total amount of industrial wastewater discharged and the intensity of pollutant discharge such as chemical oxygen demand and ammonia nitrogen will be reduced. Actively promote the efficient recovery and reuse technology of ethylene glycol and acetaldehyde in polyester wastewater, the process and device technology of flash crystallization to make sodium sulfate from viscose fiber production wastewater, the recovery and utilization technology of caprolactam in large nylon polymerization plant, the color of stock solution and the application of online pipeline addition technology, and promote the transformation of coal-fired boilers with ultra-low emission.

We will strengthen technology and equipment for water saving and pollution reduction. Focusing on high-water consumption industries such as viscose, recycled polyester and vinlon, we will carry out water balance tests and water efficiency standards, vigorously promote the transformation of water-saving technology, and promote industrial water-saving technology, technology and equipment. Strengthen the management of water use in the production process and working procedure of enterprises in high-water consumption industries, strictly implement the national standard of water intake quota, and improve the water use efficiency of enterprises. We will promote the recycling of water resources and the treatment and reuse of industrial wastewater.

We will accelerate the improvement of standards for industrial cleaner production, energy efficiency, water efficiency, emissions, comprehensive utilization of resources and green fiber products, promote the standards for cleaner production evaluation, energy efficiency and water efficiency, and implement green supervision in accordance with the law. Efficient recycling of resources

In accordance with the principles of reduction, reuse and resource utilization, accelerate the establishment of a recycling industrial system for the chemical fiber industry, promote the link symbiosis and collaborative utilization among enterprises, parks, industries and regions, and greatly improve the efficiency of resource utilization.

Focusing on high-value, large-scale and intensive utilization, focusing on the utilization of waste chemical fiber and waste textiles, strengthening the technical research on the recycling and reuse of waste textiles, focusing on solving the high-value recycling and reuse technology of waste textiles, promoting the advanced and applicable technical equipment for the high-value utilization technology of polyester waste textiles by chemical method, and promoting the deep resource utilization.

(3) Guide the development of chemical fiber green products

In accordance with the concept of green management of the whole life cycle of products, and the principle of minimizing energy and resource consumption and minimizing ecological environmental impact, through technological innovation and optimization design, we develop and promote green fiber products by taking bio-based chemical fiber, recycling chemical fiber and stock solution coloring chemical fiber products as the breakthrough point, and taking product quality and safety as the basic requirements. Significantly improve the level of energy saving, environmental protection and low carbon products.

The green products of the use process mainly refer to the effect of energy saving and consumption reduction through the use of some functional fibers.

(4) Create chemical fiber industry green factory

According to the principles of land intensification, clean production, waste resource utilization and low energy carbonization, the green chemical fiber factory is established. Optimize the manufacturing process, apply green and low-carbon technology to construct and transform the factory, and make intensive use of the factory. Use non-toxic and harmless raw materials to replace toxic and harmful raw materials, use advanced and applicable clean production technology and efficient terminal treatment equipment, reduce pollutant discharge, and promote the resource and harmless use of water, gas and solid waste. Adopt advanced water-saving technology, implement the separation of pollution, recycling water, sequential water use and waste water recycling. Optimize the energy use structure of factories, adopt advanced energy-saving technologies and equipment, increase the proportion of clean energy and renewable energy use, and build smart microgrids and energy management centers. Implement digital and intelligent management system of resources, energy and environment to realize dynamic monitoring and management of resources, energy and pollutants. Through design, energy consumption and material consumption management can be realized. Including the establishment of an energy control system, the energy control center combines sensors, wireless data transmission, industrial Internet of things and other technologies, real-time database technology, data mining technology, advanced control technology, dynamic planning technology, and implements online centralized collection and visual control of energy consumption measurement data of coal, oil, water, electricity, gas (steam) and other energy sources of the company. To achieve dynamic monitoring, analysis and diagnosis, comprehensive statistics, energy forecasting, energy scheduling, optimization and other functions, reasonable planning and utilization of energy, reduce the company's energy consumption, improve economic benefits.

(5) Promote green procurement of chemical fiber industry

Based on leading raw materials supply enterprises, and supported by chemical fiber green supply standards, green procurement standards for chemical fiber enterprises and producer responsibility extension system, the green supply chain management system of chemical fiber has been established and pilot green supply chain management of the industry has been carried out. Establish a resource-saving and environment-friendly procurement, production, marketing, logistics and recycling system, expand the concept of green development from individual enterprises to every enterprise in the industrial chain, and realize the environmental protection, low-carbon and sustainable development of the entire production chain. Encourage production enterprises to establish green procurement concepts, improve the requirements for suppliers' green design, clean production and green packaging, and establish green raw materials and product traceability information systems.