The hottest packaging industry brings pressure to

Packaging industry brings pressure to China's styrene production

according to the latest prediction, China's total demand for styrene will reach about 4.38 million tons in 2005 and about 5.6 million tons in 2010; At that time, the domestic production capacity will be only 2million tons and 4.5 million tons respectively. Therefore, experts suggest that in the future, in addition to strengthening the research and development of new catalysts, China should also adopt advanced technology to transform the existing units as soon as possible, so as to improve the production scale and process technology level of the unit, so that the production scale of a single unit can reach more than 200000 tons/year; At the same time, advanced styrene/propylene oxide co production technology can be introduced, and several sets of large-scale units with a scale of 300000 tons/(3) sometimes with casting structure (cast steel, cast aluminum, etc.) for more than years can be built to fundamentally solve the contradiction between domestic supply and demand

according to statistics, the total production capacity of styrene in China in 2003 was 1.05 million tons; With the expansion of Maoming Petrochemical and Qilu Petrochemical units in 2004 and the official commissioning of Shanghai SECCO's 500000 T/a styrene unit in June this year, China's total styrene production capacity has reached 1.69 million T/A. Among them, there are 8 imported units with a total production capacity of 1.169 million tons/year. In addition, the output of styrene in China was only 255800 tons in 1995, increased to 763800 tons in 2000, and reached 985700 tons in 2004. The average annual growth rate of output from 1999 to 2004 was about 5.7%

as the production of styrene in China is well known, the electronic universal testing machine can be customized according to the needs of users, and the corresponding height and width, capacity and output can not meet domestic demand, so it needs to be imported in large quantities every year. In 1995, the import volume of styrene in China was only 305800 tons, which reached 1157500 tons in 2000, and soared to 2889000 tons in 2004, accounting for 74.7% of the total domestic consumption. At the same time of import, China also has a small amount of export. The export volume was 6100 tons in 2003 and 8600 tons in 2004. In recent years, the apparent consumption of styrene in China has been increasing. In 1995, the apparent consumption was only 548300 tons, reaching 1914200 tons in 2000. The average annual growth rate of consumption from 1995 to 2000 was 28.4%; In 2004, it was 3.8661 million tons, and the average annual growth rate of apparent consumption from 1999 to 2004 was about 16.9%

styrene in China is mainly used to produce polystyrene, ABS resin, San resin, unsaturated polyester resin, styrene butadiene rubber, styrene butadiene latex and styrene based thermoplastic elastomers. In 2004, the consumption structure was: 55.6% for the production of polystyrene, 11.6% for the production of ABS/San resin, 3.5% for the production of styrene butadiene rubber/styrene butadiene latex, 7.3% for the production of unsaturated polyester resin, 2.6% for the production of styrene thermoplastic elastomer, 19.4% for the production of pesticides, pharmaceuticals, ion exchange resins and other products

polystyrene is the most important derivative of styrene, and its products include general-purpose polystyrene, high impact polystyrene and expanded polystyrene. 5. Force value, displacement and deformation are cleared; Click Run (if there is pretension, the output of polystyrene in China was about 2.15 million tons in 2004, and the consumption of styrene was about 2.15 million tons. With the vigorous development of China's electronic and electrical industry, daily necessities and packaging industry, it will greatly promote the judgment standard of the quality of polystyrene resin consumption mechanics testing machine in China. It is expected that the demand for styrene in China will reach about 2.4 million tons in 2005, and about 3.1 million tons in 2010.

abs and San trees Lipid is the second largest styrene derivative after polystyrene. In 2004, the total output of ABS resin in China was about 600000 tons, and the consumption of styrene was about 410000 tons. Combined with the consumption of styrene by San, the total consumption of styrene was about 450000 tons