On September 17, 2007, the joint device of MMA (methyl methacrylate) and acrylate special products invested and built by Evonik Industrial Company of Germany in China laid the foundation for the Shanghai Chemical Industry Zone. The unit will produce 100,000 tons/year of MMA, methacrylic acid, butyl methacrylate and PMMA (polymethyl methacrylate, commonly known as plexiglass) moulding polymers with a total investment of 250 million euros ($347 million) It is expected to be completed and put into operation in mid-2009. This is the third foreign chemical giant to invest in a large-scale MMA project in China in recent years. Foreign chemical giants have successively invested in China's MMA sector, indicating that the domestic MMA competition will become more intense in the future.
The pace of investment continues to accelerate As the world's MMA growth rate of demand in recent years as high as 6%, exceeding the GDP growth rate, the need to add two sets of world-scale 100,000 tons / year device. The annual growth rate of MMA in all regions of the world is 7% to 8% in Asia, 3% to 4% in North America, and 1% to 2% in Western Europe. China is the country with the fastest growth in demand for MMA, and its annual growth rate is as high as 15%.
Due to strong demand, the domestic MMA market has attracted the attention of many companies in recent years, and foreign investors have also accelerated the pace of investment and construction. Shanghai Luite International Co., Ltd.'s 100,000-ton/year MMA plant was put into operation in July 2005. Japan Mitsubishi (Synthetic Fiber) Liyang Co., Ltd. also established a 90,000-ton/year MMA plant at Huiling Huacheng Chemical Industry Park, Dayawan Petrochemical Industrial Zone, Huizhou, Guangdong, China. It was put into production in July 2006. By 2006, there were a total of 5 large MMA manufacturing enterprises in China, with a total capacity of 298,000 tons/year. In addition, there are more than 500 small enterprises in China cracking the production of MMA manufacturers, total cracking production in 2006 reached 120,000 tons. Mainly located in East China, South China, North China and other places, mainly private or township enterprises, these production plants will PMMA products recycling materials, PMMA production and processing of scrap, head material re-crack production, cracking raw materials mainly from imports. In addition, the Jilin Chemical Group plans to introduce advanced foreign technology to expand the MMA plant of the Jilin Chemical Group's acrylonitrile plant to a production capacity of 100,000 tons/year, and it is expected to start production at the end of 2007.
Market demand continues to grow Since 2005, the domestic MMA market has been extremely hot, production and sales are booming, and products are in short supply. MMA prices have been rising.
In 2000, the apparent consumption of MMA in China was 118,600 tons, which reached 249,000 tons in 2006. The import volume steadily increased from 19,500 tons in 1997 to 84,000 tons in 2004. In 2005, due to the installation of Shanghai Lucite Company, the domestic supply volume increased substantially, and the import volume decreased to 75,000 tons. Mitsubishi Liyang Huizhou 90,000 tons/year MMA plant was put into production in September 2006. In 2006, the import volume further decreased to 35,000 tons. During this period, the self-sufficiency rate of China's MMA increased year by year from 57.4% in 2004 and 70.3% in 2005 to 97.6% in 2006. After the completion of the Jilin Chemical Project and the Evonik new project, the domestic MMA production will fully meet the needs of the domestic market and the market competition will become more intense.
At present, the demand for MMA in the Asian region, especially in Asia dominated by the world, is growing strongly, and the growth of PMMA usage is particularly rapid. While the demand for toys, stationery, and other articles using transparent resins as raw materials has greatly increased, the demand for PMMA, such as light guide plates for backlighting of LCD core components and advertising signs, has also increased. In 2006, China's PMMA manufacturing enterprises have grown to over 300. At present, the main consumption areas of domestic PMMA are advertising light boxes, signs, lamps, bathtubs, meters, daily necessities, and furniture, which basically fall into the low-end market. The special organic glass, such as PMMA and optical fiber, is still blank, and high-purity optical disc grade PMMA widely used in TV screens, CDs, VCDs, and CDs abroad has only just started in China. It is expected that with the rapid development of domestic advertising industry, high-end furniture industry, construction industry, transportation industry, optical field and IT industry, the demand for PMMA will increase significantly.
The continuous expansion of the consumption sector After years of application and development, China's MMA has been almost entirely monolithic and processed into a single variety of PMMA casting plates since the 1970s, and has turned to non-resin product processing applications such as surface coatings and adhesives. , ACR and MBS, textile pulp, medical polymer materials, leather additives and some multiple composite plastic alloys, and developed temperature-resistant, wear-resistant, anti-static, high-impact PMMA and extra large, special thick, hollow, PMMA core materials used for special-shaped PMMA and optical fibers, etc., MMA applications continue to expand.
China's MMA consumption is mainly concentrated in East China, South China, and North China. China's large-scale MMA production enterprises are mainly concentrated in Jilin, Heilongjiang and other places, forming an unbalanced situation in northern production and southern consumption, and increasing logistics costs. The overseas investment sites are all concentrated in the MMA downstream industries. The sites are mainly distributed in East China and South China, which reduces logistics costs. Therefore, in the future, domestic MMA manufacturers must work hard to reduce costs and improve product quality.
At present, the development of domestic MMA product application areas is still far from enough. There are only a few bulk products, and the technology is low in content, low in added value, and narrow in application. Other downstream products are still in their infancy, with low output and limited application scope. China still needs to import a large number of MMA downstream products every year. Therefore, while strengthening production, production companies should also cooperate with scientific research departments to vigorously develop high value-added, high-tech downstream products, such as special PMMA, to achieve product serialization, diversification, specialization, and continuously improve the product Quality, reduce production costs.
Closed Cooling Tower
Why say closed cooling tower is energy saving and environmental protection equipment, more and more users are using this kind of equipment to replace the original equipment (open tower), we can through data analysis and comparison, the two energy data accounting can be obvious. Energy consumption is basically two major aspects, one is water, the other is electricity. Both are energy costs that no cooling tower can escape, unless you leave the equipment on.
First of all, look at the consumption of water. Water is generally consumed in two aspects. One is the flying overflow after spraying, and the other is the evaporation consumption of water.
Let's look at the open cooling tower, the spray water of the tower is basically between two and three percent of the overflow rate, if we according to the daily operation of 10 hours, excluding holidays, 280 days of operation. According to the actual open cooling tower flow of 6000 cubic meters per hour to calculate. 6000*2%*10*280= 336,000 tons of water, and the same closed cooling tower, its spray flying overflow is very small, because after all, the spray work is carried out in the tower, almost can be controlled in a few thousandths, we calculate according to 5 thousandths, the same is 10 hours of work, 280 days a year operation, To achieve the same cooling amplitude is basically 4,500 tons per hour of closed cooling tower is enough, then the calculation results: 4,500 *0.5%*10*280= 63,000 tons, it is not difficult to see, because of the different design structure caused by the waste of spraying water resources, more than 200,000 tons of terror. The bigger the pool of the open tower, the more wasted water, because the evaporation area increases, and the closed cooling tower has no pool, so the consumption here is zero. Judging from the price of a ton of water, just such a equipment, a year to solve the capital of hundreds of thousands of enterprises.
Let's look at the comparison of electric energy, electric energy is not different, because they are all through the same power equipment to operate the equipment, the power of the two is similar, the running time is the same, basically the energy consumption is about the same.
To sum up, for the closed cooling tower energy saving accounting can be strong to open the tower out, and, today are advocating energy conservation and environmental protection, this is the general trend, so the closed cooling tower is more and more favored by the majority of users.
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Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.fangzhouarkfluid.com