[WTI rose to its highest price since September 2008]
Since Russia took military action against Ukraine on February 24 and the United States and some western countries imposed sanctions on Russia, the crude oil futures prices in Europe and the United States have soared by more than 20%. In the past week, the first month futures of light and low sulfur crude oil on the New York Mercantile Exchange hit the highest weekly US dollar increase in history, with a net increase of US $24.09 a week, or 26.3%; The average settlement price per barrel was 106.62 US dollars, 14.404 US dollars higher than the previous week. The highest settlement price was 115.68 US dollars per barrel and the lowest was 95.72 US dollars per barrel; The trading range is US $94.43-116.57 per barrel. London Intercontinental Exchange Brent crude oil futures for the first month recorded the largest weekly increase since January 1991, with a net increase of US $20.18 or 20.61%; The average settlement price per barrel was 109.49 US dollars, 12.28 US dollars higher than the previous week, with the highest settlement price of 118.11 US dollars per barrel and the lowest of 100.99 US dollars per barrel; The trading range is US $98.30-119.84 per barrel.
[refined oil "five consecutive rises" and gasoline in many places has entered the "8 Yuan era"]
According to the recent changes in oil prices in the international market and the current refined oil price formation mechanism, China's gasoline and diesel prices have increased by 260 yuan (RMB, the same below) and 255 yuan per ton respectively since 24:00 on the 3rd, the national development and Reform Commission said on the 3rd.
According to the national average, the price of No. 92 gasoline, No. 95 gasoline and No. 0 diesel will be increased by 0.2 yuan, 0.22 yuan and 0.22 yuan respectively. This is the "four consecutive rises" in the retail price limit of refined oil in 2022. Coupled with the increase in the retail price at 24:00 on December 31, 2021, China's refined oil price has experienced "five consecutive rises".
[two chemical achievements were selected after the release of the top ten scientific progress in China in 2021]
On February 28, the high technology research and Development Center (basic research management center) of the Ministry of science and technology released the top ten progress of Chinese Science in 2021. "Artificial synthesis from carbon dioxide to starch" and "large-scale preparation of high-performance fiber lithium-ion battery" were selected.
The 10 major scientific and technological advances were first selected from 310 recommended scientific research advances, and then voted online by more than 3500 well-known experts and scholars, including academicians of the Chinese Academy of Sciences, academicians of the Chinese Academy of engineering and directors of state key laboratories.
Among them, "artificial synthesis from carbon dioxide to starch" was completed by Ma Yanhe research team of Tianjin Institute of industrial biotechnology, Chinese Academy of Sciences. By designing the unnatural pathway from carbon dioxide to starch synthesis from scratch and using modular reaction adaptation and protein engineering, the research team has solved the problems of computer pathway thermodynamic matching, metabolic flow balance and by-product inhibition, and overcome the problems of artificial pathway assembly and cascade reaction evolution, Finally, an artificial starch synthesis pathway (ASAP) composed of 11 core reactions was formed. This pathway coupled chemical catalysis and biocatalysis reaction, realized the artificial total synthesis from carbon dioxide and hydrogen to starch molecules in the laboratory without relying on plant photosynthesis, made it possible for starch production to change from traditional agricultural planting mode to industrial workshop production mode, and made an original breakthrough.
Chen Huining and Fudan University cooperated to produce high-performance lithium-ion batteries. The research team systematically revealed the variation law of internal resistance of fiber lithium-ion battery with length, effectively solved the problem of interface stability between active materials and fiber electrodes, and continuously constructed a new fiber polymer lithium-ion battery with good safety and comprehensive electrochemical performance, meeting the requirements of highly integrated and flexible development of electronic products. The fiber lithium-ion battery system developed in this research has the same electrochemical performance as commercial lithium-ion battery, and has better stability and safety. The fiber polymer lithium-ion battery with a length of 1 meter can continuously and effectively power wearable electronic devices such as smart phones, bracelets and heart rate monitors for a long time. They also established the world's first fiber lithium-ion battery production line and realized its large-scale continuous preparation.
