Green Methanol
Green methanol is generated by combining green hydrogen and captured carbon dioxide. As a fuel as well as a medium of energy storage, green methanol is considered promising.
Utilization of captured carbon
Sequestration of captured carbon is the mean-stream solution but it has unknown long-term effects. However, if combined with green hydrogen to generate green methanol, the add-on values of captured carbon will be higher.
High energy density
Methanol has much higher energy density than Li ion batteries and higher volume energy density than hydrogen. That is to say, 1m^3 of methanol can generate more energy than 1m^3 of Li ion battery or 1m^3 of hydrogen gas.
Stability and safety
With proper sealing, methanol can be stored indefinitely, unlike Li ion batteries which will undergo aging. As a liquid, methanol can use existing oil infrastructure to transport and store, unlike hydrogen which requires a whole new set of equipment, resulting in lower cost for methanol. Besides, methanol has smaller explosion limit range than hydrogen, making it less prone to explosion.