BASF's process of using carbon dioxide as a raw material has been commercialized. The company mainly uses carbon dioxide emitted by its ammonia plant as raw material for urea production, which consumes hundreds of thousands of tons of carbon dioxide per year, but this only accounts for a very small part of the company’s carbon dioxide emissions. In addition, the process for preparing salicylic acid and methanol can also use carbon dioxide as a raw material, but since some of BASF's production sites have implemented highly thermal integration and are extremely efficient, these processes only consume relatively less carbon dioxide. The total carbon balance of the company will not have a big impact. At the same time, BASF is stepping up the development of some small-scale technologies. Recently, some copolymers have been successfully synthesized by replacing conventional carbon-hydrogen monomers with carbon dioxide.
UOP recently established a cooperative alliance with the University of Southern California's Loker Institute for Hydrocarbon Research to convert carbon dioxide into useful fuel. The University of Southern California has developed technologies to convert carbon dioxide to methanol or dimethyl ether, both of which are potential cleaner burning alternatives to traditional transportation fuels. UOP is participating in the commercialization of this technology. The company already has some commercialized technologies that can use methanol as a key intermediate in petrochemical production. UOP has planned to transfer all of its carbon dioxide abatement technologies to other companies.
DSM recently also formed the DSM Corporate Investment Company to invest in Novomer, which is engaged in material technology research and development in Ithaca, New York. Novama uses carbon dioxide and renewable materials to produce functional polymers and other chemicals. Its proprietary technology is based on the knowledge of Geoffrey Coates, a professor at the University of Cornell and the company's chief scientist Geoffrey Coates. ) Development of advanced catalysts. Such catalysts combine carbon dioxide with carbon monoxide and other renewable materials to produce liquid epoxides. Novama's catalyst technology provides superior performance in terms of molecular weight, comonomer combination, and functionality for the production of a wide range of materials, including aliphatic polycarbonates, poly(3-hydroxyalkyl esters), and polyolefins. Unusual control ability.
In addition, some energy and chemical companies are developing carbon-free biofuels. Shell and a biotechnology company based in Hawaii, USA, formed a joint venture to develop a process for making diesel from seaweed. Long-term plans are to use carbon dioxide exhaust from industrial facilities to breed seaweed. The company had built a medium-sized device last December to test the technology at the production site on the Hawaiian coast. Algae are rich in vegetable oils and can be cultivated in tanks in the sea, minimizing the use of fertile land and fresh water. Potential oil production per hectare is 15 times higher than canola, palm or soybean. At the same time, seaweed has great development prospects due to its rapid growth, and its number can be several times per day.
Chevron is also developing technology for producing fuel from seaweed. The company has been collaborating with the National Renewable Energy Laboratory in Golden, Colo., since 2007 to develop projects for the production of jet fuel and other fuels from seaweed. In January 2008, Chevron formed an alliance with a biotechnology development company based in San Francisco to develop and test biodiesel structures from seaweed.
According to scientific analysis, under the most ideal circumstances, the chemical industry can reduce the carbon dioxide emitted to the atmosphere by 5%. New technologies are also emerging. The National Laboratory in Sandia, New Mexico, USA is also developing technologies for the production of clean fuels using carbon dioxide. At present, the technology is still in the development stage, and it is preparing to convert carbon dioxide into carbon monoxide before making fuel, including hydrogen, methanol and gasoline. The conversion process passes carbon dioxide through a ceramic material loaded with cobalt ferrite in the presence of concentrated solar heat.
Ultra-high frequency induction heating equipment is a kind of equipment developed for surface quenching by applying electromagnetic induction principle and modern power electronic technology. Surface heat treatment process in which the workpiece is heated locally by an induced current. This heat treatment process is often used for surface quenching, but can also be used for local annealing or tempering, and sometimes for bulk quenching and tempering.
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