4hw.org: when we went to school, we all knew that carbon dioxide is the most common gas in the air. Recently, some real scientists announced that they have realized the conversion of carbon dioxide into gasoline, which sounds too incredible. So how can we do this? Let's have a look!
Recently, the Key Laboratory of science and engineering of low carbon conversion of Chinese Academy of Sciences and the Joint Laboratory of Shanghai Institute of higher learning and Shanghai University of science and technology have made great progress in the field of carbon dioxide and CO2 utilization, creatively using indium oxide / molecular sieve dual functional catalyst, realizing one-step conversion of CO2 into high selective liquid fuel gasoline and other high carbon hydrocarbon compounds. The research results were published online in nature chemistry recently, and have applied for Chinese invention patent and international PCT patent. (this article is edited and collated by sihai.com, reprinted and noted with source, original link: http://www.4hw.com.cn/life/)
Due to the increasing demand for energy, the consumption of fossil fuels and the total amount of CO2 emissions are increasing rapidly, while the large-scale use of alternative energy such as solar energy and wind energy is limited by its inherent intermittence, volatility and randomness. Hydrocarbon compounds such as gasoline and aviation kerosene are important liquid transportation fuels, which are widely used in the world and have high economic value. Professor Ola, the Nobel Prize winner of chemistry, put forward the concept of "artificial carbon cycle". If CO2 is directly converted into liquid fuel by means of alternative energy, the whole carbon cycle can be made effective.
Therefore, scientists can turn CO2 into useful chemicals or fuels with the help of hydrogen produced by electrolyzing water from renewable energy, which can help solve the environmental problems caused by the increase of CO2 concentration in the atmosphere, the excessive dependence of fossil fuels and the storage of renewable energy. (this article is edited and collated by sihai.com, reprinted and noted with source, original link: http://www.4hw.com.cn/life/)
At present, the research of CO2 resource utilization mainly focuses on the synthesis of simple carbon-c1 molecular compounds such as methanol, formic acid, methane, etc. because of the chemical inertia of CO2 molecules and the kinetic barrier of C & ndash; C bond formation, it is still a huge challenge to convert CO2 into products containing two carbon atoms or more.
For a long time, due to the lack of effective catalyst system, the research on the direct synthesis of high carbon hydrocarbons from CO2 is less. The existing researches on the synthesis of high carbon hydrocarbons by CO2 mainly focus on the modified iron-based Fischer tropsch catalyst, and the by-product methane is usually more than 6. The Key Laboratory of low carbon conversion science and engineering of Chinese Academy of Sciences has effectively coupled the C = O bond activation with the C & ndash; C bond coupling function, and successfully designed the In2O3 / HZSM-5 dual functional catalyst, which has made a breakthrough in the high selective conversion of CO2 to high carbon hydrocarbons. Among the hydrocarbon products, the selectivity of C5 to C11 is nearly 80, while CH4 is less than 1. In addition, the R & D team has completed the preparation and amplification of catalyst and obtained industrial size particle catalyst with high mechanical strength. Under industrial conditions, the catalyst system has the conditions for demonstration application.
In addition to the hydrocarbon components of gasoline, CO2 can be directly converted into LPG or even diesel oil with high selectivity by adjusting the molecular sieve pore size of the catalyst system.
This work has been highly praised by the reviewers of nature chemistry, and is considered as a breakthrough in the field of CO2 conversion, providing an important platform for CO2 conversion into chemicals and fuels. (this article is edited and collated by sihai.com, reprinted and noted with source, original link: http://www.4hw.com.cn/life/)