Question

Hydrogen economy

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Answer 1

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The use of hydrogen greatly reduces pollution.

When hydrogen is combined with oxygen in a fuel cell, energy in the form of electricity is produced. This electricity can be used to power vehicles, as a heat source and for many other uses.

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Answer 2

Explanation:

The hydrogen economy is the use of hydrogen as a low carbon fuel, particularly for heating, hydrogen vehicles,[1] seasonal energy storage and long distance transport of energy.[2]

The hydrogen economy is being created as part of the low-carbon economy.[3] In order to phase out fossil fuels and limit global warming, hydrogen is starting to be used as its combustion only releases clean water, and no CO

2 to the atmosphere.[4] As of 2019, however, hydrogen is mainly used as an industrial feedstock, primarily for the production of ammonia, methanol and petroleum refining.

Hydrogen gas does not occur naturally in convenient reservoirs. As of 2019 almost all the world's 70 million tons of hydrogen consumed yearly in industrial processing[5] is produced by steam methane reforming (SMR).[6] Small amounts of hydrogen are produced by the dedicated production of hydrogen from water. As of 2019 there is not enough cheap clean electricity (renewable and nuclear) for hydrogen to become a significant part of the low-carbon economy, and carbon dioxide is a by-product of the SMR process,[7] but carbon capture and storage can be done after pyrolysis of the natural gas, to capture these carbon dioxide emissions

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