Switzerland's research and development of wood manufacturing chemical raw materials technology progress

Oil is not only the most important fossil energy, but also the source of many important important chemical raw materials. Therefore, research and development of renewable petroleum substitutes is also of great significance in the development of renewable new energy. The Swiss National Key Scientific Research Project “Comprehensive Utilization of Timber Resources” has achieved initial results in this area. The researchers have successfully developed two new technologies for converting the main components of wood, cellulose and lignin, into chemical raw materials, which is expected to be sought. Oil substitutes open up new avenues.

The research team at the Federal University of Technology in Lausanne, Switzerland, has successfully developed a new catalytic process that converts cellulose in wood into hydroxymethylfurfural, an important raw material for the production of synthetic materials, fertilizers and biofuels. Their technical characteristics are the development of a series of ionic salt liquid catalytic process, the conversion rate of one reaction can reach 62%, high temperature and high pressure and strong acid environment are not needed, and the reaction selectivity is good, which can effectively inhibit the formation of by-products. This technology can also be used to obtain cellulose from other plants, and has a wide range of industrial applications.

Another new technology is the research results of the research team of the Northwestern University of Technology in Northwestern China. They use the invertase obtained by the fungus to decompose the decayed wood, and successfully convert the lignin into an aromatic compound such as vanillin, which is a solvent and insecticide. , pharmaceuticals and synthetic materials provide basic raw materials. Lignin is the main component of the wood cell wall, accounting for 15-40% of the wood quality. Most of the lignin in the wood has not been fully utilized as a fuel, so this technology is more groundbreaking. The technology also realizes the recycling of catalytic enzymes, and combines the catalytic enzyme on the silica-coated iron nanoparticles. After the reaction is completed, the catalytic enzyme is separated from the iron nanoparticles by a magnetic field, and the cycle can be repeated up to 10 times. Times.

Under the framework of the Swiss National Key Scientific Research Project “Comprehensive Utilization of Timber Resources”, a series of new technologies are being developed. For example, the ETH Zurich is studying new technologies for obtaining succinic acid from wood waste, in order to form a complementary and comprehensive “Biorefinery” green chemical new technology and new process system provide technical support for wood as a petroleum substitute.

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