What are flares burned with

The torch is burned with liquefied natural gas (propane mostly).

Historically, the Olympic torch has used a mixture of fuels, and propane was used to meet ambient temperature requirements within the torch relay route. Secondly, the color is also a consideration, propane combustion flame is orange, has a better visibility. The fuel used for the Beijing Olympic torch is propane, which is an inexpensive and commonly used fuel. Its main components are carbon and hydrogen, only carbon dioxide and water after burning, no other substances, will not cause pollution to the environment.

More importantly, propane can adapt to a wide range of temperatures, at minus 40 degrees Celsius can still produce more than 1 saturated vapor pressure, higher than the outside atmosphere, the formation of the combustion and, propane produced a bright yellow flame, the torchbearer running, dynamic fluttering flames are more eye-catching in different backgrounds.

Winter Olympics innovative torch fuel hydrogen

Compared to the previous Olympic Games, a large number of liquefied natural gas or propane and other gases as torch fuel different, the Beijing 2022 Winter Olympics for the first time to use hydrogen as a torch fuel to minimize carbon emissions, and the Olympic Games green, environmental protection concepts, but also to the world to show the It also demonstrates to the world the green and low-carbon development concept of China. Beijing Winter Olympics torch "flying", "flying" torch using hydrogen energy as fuel, but also highlights the cultural charm and scientific and technological strength of China.

The 2022 Beijing Winter Olympics will demonstrate the operation of 1,000+ hydrogen-powered vehicles, equipped with more than 30 hydrogen refueling stations, making it the world's largest demonstration application of fuel cell vehicles. With the wind of the Winter Olympics, it is expected to become a watershed in the accelerated development of China's hydrogen energy vehicles, when the entire hydrogen energy industry chain will benefit from it.