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Methanol fuel is an alternative biofuel for internal ... George A. Olah proposed a "methanol economy" based on energy storage in synthetically produced methanol. [13] ...
The methanol economy is a suggested future economy in which methanol and dimethyl ether replace fossil fuels as a means of energy storage, ground transportation fuel, and raw material for synthetic hydrocarbons and their products.
RMFC systems offer advantages over direct methanol fuel cell (DMFC) systems including higher efficiency, smaller cell stacks, less requirement on methanol purity, no water management, better operation at low temperatures, and storage at sub-zero temperatures because methanol is a liquid from −97.0 to 64.7 °C (−142.6 to 148.5 °F) and as ...
Direct-methanol fuel cells are unique in their low temperature, atmospheric pressure operation, which lets them be greatly miniaturized. [44] [45] This, combined with the relatively easy and safe storage and handling of methanol, may open the possibility of fuel cell-powered consumer electronics, such as laptop computers and mobile phones. [46]
Specific energy is energy per unit mass, which is used to describe the chemical energy content of a fuel, expressed in SI units as joule per kilogram (J/kg) or equivalent units. [1] Energy density is the amount of chemical energy per unit volume of the fuel, expressed in SI units as joule per litre (J/L) or equivalent units. [2]
In contrast to indirect methanol fuel cells, where methanol is reacted to hydrogen by steam reforming, DMFCs use a methanol solution (usually around 1M, i.e. about 3% in mass) to carry the reactant into the cell; common operating temperatures are in the range 50 to 120 °C (122 to 248 °F), where high temperatures are usually pressurized.
As the steam reforming of methanol is more simple and efficient (catalyst bed temperature below 280°C) compared to reforming of other fuels and because of the low cost and high purity of conventional methanol and renewable methanol (e.g. made from waste or renewable power) as well as because of the simple storage of methanol, most HT-PEM fuel ...
Methanol can store hydrogen economically at standard outdoor temperatures and pressures, compared to liquid hydrogen and ammonia that need to use a lot of energy to stay cold in their liquid state. [49] In 2023 the Laura Maersk was the first container ship to run on methanol fuel. [50]
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