For the first time, zero-carbon methanol was used as torch fuel in large-scale events.

The fuel of the main torch of Hangzhou Asian Games is "green" methanol, which is called "green" because the preparation process of methanol is "zero carburetion", that is, the amount of carbon dioxide produced and consumed is completely neutralized from methanol production to methanol combustion. This is also the first time that zero-carbon methanol has been used as torch fuel in large-scale events. When the main torch was lit, the bright and elegant flame posture added a lot of color to the opening ceremony. Under normal circumstances, the combustion of methanol is light blue, which is not easy to see. In order to make the flame look more beautiful, the research team added a small amount of special "salt" into methanol, and the flame reaction of calcium ions and sodium ions in the salt ensured the flame to produce bright yellow and reddish colors, making the ignition ceremony more ornamental. (Science and Technology Daily reporter Liang He, Photography/Science and Technology Daily reporter Zhou Weihai)