Green carbon: the cornerstone of sustainable devel...

Release time:2011-08-23      source:      Views:

?? Although the chemical fiber industry has been recycling economy has made great achievements, but the situation facing the future is still very grim. "Five-second" period, the chemical fiber industry development cycle's overall objective is: to accelerate biomass renewable, biodegradable raw materials research and development, actively promote clean production, enhancing resource utilization, and establish a chemical industry cycle model of economic development.

? Green carbon is the "five-second" during the development of chemical fiber industry, the main content is the industry's future competitiveness and sustainable development of the foundation. International Chemical Fiber Conference this special invitation of the relevant state departments of leading industry experts and other well-known depth of interpretation, "second five" green carbon, etc., also arranged for a "renewable fibers and circular economy," the special forum, inviting 12 experts scholars and representatives to discuss chemical recycling economy development.

??? In the new century, China's chemical fiber industry sustained and rapid development, competitiveness has improved significantly, to promote and support a strong textile industry and related industries. In 2010, domestic production of 30.9 million tons of chemical fiber completed, accounting for more than 60% global share. Meanwhile, the Fiber line actively promote "energy conservation, energy saving, emission reduction, clean production, cyclical economy," the main energy saving and emission reduction by 2010, industry in general has basically reached the "chemical industry" Eleventh Five-Year "development of guidance," the objectives and requirements.

??? Remarkable energy saving and emission reduction

?? "Eleventh Five-Year" period, the chemical fiber industry, eliminate backward production capacity totaling more than 300 million tons.
2010, the chemical industry's share of the international advanced level equipment 70%, of which 75% polyester over polyester industry, energy saving for the industry to provide the basis for protection. Compared with 2005, 2010 tons of chemical fibers declined 30.4% overall energy consumption, aggregate polyester, viscose staple fiber, nylon polymer, nylon filament energy levels have reached the international advanced level; tons of chemical fiber quantity of water down 25.7%, wastewater emissions decreased by 25%; viscose industry increased significantly the level of water reuse, the average increase of 20 percentage points; polyester industry, water recycling rate reached 95%.

???The current industry focus on energy saving technology is of some widely used. For example: In recent years, new projects spinning polyester superfine fiber production has been widely used in the cooling loop hair, their hair with a side wind of only 30% of devices, energy-saving effect is remarkable; new spinning heat medium circulation 15% energy saving heating system. Viscose fiber production activated carbon emissions technology, the initial adsorption rate of 85% to 89%, spinning in CS2, H2S gas removal rates up to 95%, 99.5%, has been widely used in industry.

?? Recycled polyester fiber industry, the scale has become

?? Over the past decade, chemical fiber industry, actively promote the development of circular economy in order to re-use of waste polyester-based fast-growing industrial scale recycling economy, increasing the level of technical products. Recycled polyester fiber, is the use of recycled waste PET bottle chip, polyester block material, waste silk and other raw materials processed into polyester fiber, produces three-dimensional crimp hollow fiber (3D ~ 15D), cotton, polyester in the long short fibers and polyester filament yarn, recycled bottles and other pieces. These products replace the large scale production of native products, effectively alleviate the serious shortage of oil resources in China's contradictions. The end of 2010, China's annual production capacity of polyester fiber recycled more than 600 million tons, the actual output of nearly 400 million tons, accounting for 80 percent of global output. China has become the first recycled polyester fiber producer.

??? In recent years, significant technological progress recycled fiber in China, domestic equipment and technology matured, improved product quality and rapid development of new products faster, is to accelerate the diversification, differentiation and other high-tech direction. Current product range and now nearly 100 species, is capable of producing such imitation Dahua staple, filament regeneration (including FDY, DTY, BCF, industrial yarn, etc.), ultra-fine fibers, fake feather fiber, flame-retardant fibers and other high-end products, application market has covered non-woven fabrics, carpets, home textiles, automotive textiles and other fields. At the same time, also to non-recycled polyester fiber areas such as food-grade packing bottles, plastic films and film and other high-end development.

???In addition, nylon, polypropylene and other fibers are also a lot of progress recycling, reuse number increased year by year, rising standards of technology, the application of recycled fiber has covered most of the downstream areas; raw materials, recycling materials, such as large-scale polyester plant acetaldehyde recovery, large nylon polymerization plant CPL recycling technologies are successfully developed, the recoveries were up 99.5%, 100%, and major companies in the industry and major projects to be applied; chemical fiber spinning technology has a lot of dope dyed promote the application, has formed an annual production capacity of 1.5 million tons, compared with traditional dyeing techniques, the technology can be reduced by 70% of CO2 emissions, tons of water dyed fibers can save 140 tons.

??Significant progress in comprehensive utilization of resources

??China's current annual production capacity of viscose fibers of more than 200 million tons, cotton linter required each year about 80 tons, of which about 60 million tons of domestic cotton linter, making the value of cotton linter been fully utilized, for farmers and agricultural processing enterprises have made great contributions to increase.

?? Fibers and the development of biomass raw materials has made significant progress. Polyethylene terephthalate (PTT) fibers, polylactic acid (PLA) fiber, polyhydroxyalkanoates (PHB / PHBV) fiber, poly butylene succinate ester (PBS) fiber production technology breakthrough, part of the species has formed a industrial scale, such as PLA fiber has been achieved 1,000 tons of industrial production. Other species such as many types of protein fiber, chitin fiber, seaweed fiber polysaccharide fiber technology have made ??significant progress, most have been of small-scale production.

?? In terms of biomass raw material, 1,3 propanediol (PDO), ethylene glycol (MEG), 1,4-butanediol (BDO) and other technology have made ??significant breakthroughs and the process of industrialization; biological diversity alcohol in Changchun Dacheng, Anhui BBCA Biochemical Co. and other large-scale enterprises, industrial production, and has been in the marketing application.

?? The establishment of recycling economy development model

?? Although the chemical fiber industry has been recycling economy has made great achievements, but the situation facing the future is still very grim. Land shortages, energy shortages, shortage of raw materials, lack of environmental capacity constraints of the industry has become a key factor in sustainable development. Therefore, the chemical fiber industry attaches great importance to energy saving and recycling economy.

?? "Five-second" period, the chemical fiber industry development cycle's overall objective is: to accelerate biomass renewable, biodegradable raw materials research and development, actively promote clean production, enhancing resource utilization, and establish a chemical industry cycle model of economic development. 2015, compared with 2010, yuan industrial added value of 15% reduction in energy consumption, water consumption reduced by 20%; tons of fiber waste water emissions by 10%, emissions reduced by 10%; used polyester products, chemical fiber fabrics clothing recycling scale up to 700 tons. By 2015, chemical fiber industry, energy contracts cover more than 20% management, cleaner production audit coverage of the industry more than 30%, corporate carbon footprint certification progress.

? "Five" will strengthen the industry, chemical fiber industry, "low-carbon economy" technical and economic studies. Speed ??up energy saving technologies, new equipment, industry development and promotion, promotion of cotton pulp black liquor treatment technology, waste film washing bottles and glue wastewater reuse wastewater, waste gas treatment, recycling, engineering and technology. Strengthen the governance from the terminal to process monitoring, clean production technology changes, promoting viscose, re-use of clean fiber production. Access to timely amend the conditions of viscose fiber industry. Accelerate the elimination of high energy consumption, high pollution and low efficiency of the backward production technology and equipment, optimize the industrial structure adjustment. Actively promote the energy industry, contract management, cleaner production audit, corporate carbon footprint certification work.

?? Vigorously promote the recycling of resources, encourage and regulate the re-use fiber industry, focusing on enhancing waste polyester, silk waste, chemical waste and other recycling products, technologies, products and complete sets of equipment to upgrade and promote the use of integration. Organizations to develop textile products recycling recycling economic development planning and technology roadmap, especially to promote the pure polyester fiber fabrics, apparel recycling technology industry. Guide social green consumption.

??? Meanwhile, the biomass industry will actively promote the development of fiber and chemical and biological materials, full use of agricultural products, crop waste and bamboo, fast-growing trees and other resources to achieve biodegradable, renewable raw material fiber, raw materials and comprehensive development and utilization of the industry. By 2015, the new solvent to achieve tons of cellulose fibers industrial production, raw material of synthetic fibers to 21 million tons of capacity development, bio-based development of various types of chemical fiber raw material production to 30 million tons.

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