[Ocean Science and Technology Frontier] Chinese scientists have achieved the hydrogenation of carbon dioxide to prepare long-chain olefins under normal pressure
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The hydrogenation of carbon dioxide to prepare chemicals is an effective way to utilize greenhouse gas resources. Recently, Professor Zeng Jie's team at the University of Science and Technology of China developed a copper-iron carbide interface catalyst, which achieves the highly selective production of long-chain olefins using carbon dioxide hydrogenation under normal pressure conditions, providing a new solution for the development of greenhouse gas resource utilization technology. Recently, the internationally renowned academic journal "Nature Communications" published this result. Long-chain olefins are compounds that are widely used in the field of fine chemicals and can be used in synthetic detergents, high-octane gasoline, lubricants, pesticides, plasticizers, etc. Currently, the common method for industrial synthesis of long-chain olefins is based on the oligomerization of ethylene, which is mainly derived from petroleum. In contrast, using renewable energy to electrolyze water to produce hydrogen, and then react with carbon dioxide to directly produce long-chain olefins, will produce significant environmental benefits if successfully applied. The new copper-iron carbide interface catalyst developed by Zeng Jie's team can solve key technical problems in the hydrogenation of carbon dioxide to produce long-chain olefins. Their research found that copper has the non-dissociative adsorption capacity of carbon monoxide, and iron carbide can catalyze the formation of methyl/methylene groups. At the interface between copper and iron carbide, the carbon monoxide adsorbed by the copper site is inserted into the end group of the methyl/methylene unit, and then hydrogenated and dehydrated to form a new methyl/methylene unit. This cycle continues to grow the carbon chain, and finally desorbs to form a long-chain olefin.
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Do you know what substance is used to absorb carbon dioxide?
Where does carbon dioxide come from and where does hydrogen come from? What are the uses of long-chain olefins? There are currently no bulk products. It would be great if ethylene and propylene could be synthesized.