Dalian materialized biomass glycol technology is tested in the immediate

Recently, in the Chinese Academy of Sciences Dalian Institute of Chemical Physics and Qingdao Institute of Bioeneenery and Process research recently jointly organized scientific and technological achievements docking exchange activities, Dahua Institute of Space Catalysis and New Materials Research Center introduced the use of straw and other biomass resources catalytic preparation of ethylene glycol technology, and said that the plan is to carry out technical pilot in the near future, biomass-rich North and Northeast China, a number of enterprises expressed strong interest in the technology. This is another major breakthrough after the new generation of coal-based ethylene glycol technology (NCTEG) thousand-ton pilot industrial test independently developed by Fujian Institute of Material Structure of the Chinese Academy of Sciences met the assessment requirements, and the achievements of the new generation of industrial glycol products took a solid step towards large-scale industrialization.
Zheng Mingyuan, a researcher in the biomass glycol research group of Dahua, said that the new route of biomass glycol developed by Dahua will catalyticize the transformation of biomass such as pre-treated straw, and can now achieve about 60%-80% selective ethylene glycol products
China
. "Initially we tried to explore the biomass field with tungsten carbide used in space catalysis, and it was the first time internationally that we had found that ethylene glycol was highly selective in straw catalytic products and could be made so efficiently from cellulose step by step."
it is understood that the biomass preparation route from the small test results, reaction conditions, costs have basically met the conditions for industrialization, its by-products include a variety of short-chain polyols, may also bring a certain amount of added value. "We are currently working with the Qingdao Institute of Bioenerking and Process research to obtain raw materials for the pre-treatment of straw, and the kg-level trial has been successful, followed by a thousand-ton pilot." Zheng Mingyuan said.
a biomass energy chemical company in Jinan, technicians said they have planned to cooperate with Dahua to use the technology for pilot trials, and optimistic about the future of the technology. "Economic and technical indicators are feasible from the current scenario, and conditions such as catalyst life, coupled with other polyol by-products, may be more economical than the current route."
industry believes that the biomass ethylene glycol technology route compared to the traditional petrochemical and coal chemical industry relying on fossil energy technology route, has the advantages of green, sustainable development. Moreover, biomass sources are very wide, once large-scale production costs are likely to be further reduced, and can reduce greenhouse gas emissions, corporate social responsibility is also helpful.
glycol is mainly used in
polyester polyester, polyester resin, moisture absorbent, plasticizer, surfactant, synthetic fiber, cosmetics and explosives, and used as dyes, inks and other solvents, preparation engine antifreeze, gas dehydration agent, manufacturing resin, can also be used for cellulosite, fiber, leather, adhesive moisturizer.
can produce synthetic resin PET, fiber-grade PET is polyester fiber, bottle-level PET is used to make mineral water bottles and so on. Can also produce acetic acid resin, acetaldehyde, etc. , also used as antifreeze. In addition to being used as antifreeze for automotive use, it is also used for the transport of industrial cold, commonly referred to as refrigerant, and can also be used as a condenser like water.
ethylene glycol methyl ether series products are high-performance advanced organic solvents, as
printing inks, industrial cleaning agents, coatings (nitro fiber paint, varnish, porcelain paint), copper plate, printing and dyeing, such as solvents and thinners
; Used as a textile additive, synthetic liquid dye, and as a raw material for desulfurizers in fertilizer and refining production.
as an important bulk energy chemical products, ethylene glycol is mainly extracted from petroleum ethylene or coal chemical synthesis production. Compared with the ethylene route, the preparation of glycol by straw and other biomass catalytic preparation has a better economy of atomic utilization. Demand for glycol in the domestic market has been growing rapidly over the past 10 years due to strong demand in the polyester industry. In 1995, the express consumption of glycol in China was only 656.9 million tons, reaching 1.9571 million tons in 2000, with an average annual growth rate of 24.40%. Since the beginning of the 21st century, the overt consumption of glycol has continued to grow significantly, breaking through the 3 million tons mark in 2002 to reach 301.99 million tons, becoming the world's largest consumption country of glycol over the United States, due to the rapid growth of demand, promoting the increase in the production capacity of glycol, in the past two years, China has more than one set of large-scale glycol production equipment completed and put into operation. With the increasing production capacity of glycol in China, the output is also increasing.
although China's ethylene glycol production capacity and output growth is fast, but still can not meet the growing domestic polyester market demand, every year a large number of imports, and imports are increasing year by year. At present, China's glycol products are mainly used in the production of polyester, antifreeze and adhesives, paint solvents, cold-resistant lubricants, surfactants and polyester polyols. Polyester is the main consumption area of glycol in China, its consumption accounts for about 94.0% of the total domestic consumption, and about 6.0% is used for antifreeze, adhesives, paint solvents, cold-resistant lubricants, surfactants and polyester polyols. In recent years, China's polyester (including polyester fiber, polyester resin and film, etc.) production has developed rapidly, in 2010 polyester production will reach about 19 million tons, when the demand for glycol will reach about 6.65 million tons. Coupled with consumption of antifreeze and other aspects, it is expected that the total demand for glycol in China will continue to maintain high growth.
although in the near future China will have more than one set of glycol production equipment completed and put into operation. Such as Yangzi Petrochemical Company to build a set of 180,000 tons / year glycol production plant by the end of 2007, Liaoyang Petrochemical Fiber Company to expand the existing production capacity of glycol to 200,000 tons / year, Maoming Petrochemical Company to build a new set of 100,000 tons / year production plant in 2008, Sichuan ethylene is proposed to build a new set of 360,000 tons / year production plant in 2009, Zhenhai Refining is to build a new set of 650,000 tons / year glycol production plant in 2009, Tianjin ethylene is proposed to build a new set of 420,000 tons / year glycol plant in 2009, Changchun Tianyu Bioengineering Company to build a set of 100,000 tons / year glycol device, Anhui Fengyuan Cebu Biochemical Company to corn, cassava and other starch as raw materials to build a set of 180,000 tons / year glycol device. It is expected that by 2008 China's total production capacity of glycol will reach about 2.68 million tons, in 2010 will reach about 4.2 million tons, but compared with the demand there is still a big gap, even if the plant full horsepower production, can not meet the actual domestic production demand, still need a large number of imports, so glycol in China has a good development prospects.
researchers in various countries have been studying the idea of biomass glycol for many years, but there are few technical routes with the prospect of industrialization.