Fossil fuels are increasingly scarce and expensive, and an increasing awareness of global warming, air pollution.As the traditional fossil fuel insufficient combustion,it releases hydrocarbons, carbon monoxide, or carbon dioxide emissions which are harm to the human and the environment. Hydrogen gas (H2) burns with intense heat. In air, hydrogen burns with a flame temperature of 2045° C. In contrast, methane (natural gas) burns at only 1325° C. Hydrogen can therefore be used to produce steam at a higher temperature than is achievable with fossil fuel fired boilers. Boiler combustion fuel saving

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