Articles – Hydrogen technology solutions

Articles

Effect of fuel composition on greenhouse gas emissions

“The classification of legal entities and individual entrepreneurs as regulated organizations is carried out on the basis of the criteria established by the Government of the Russian Federation in relation to economic or other activities accompanied by greenhouse gas emissions, the mass of which is equivalent to 150 thousand tons of carbon dioxide per year or more for the period up to 2024 and 50 thousand tons of carbon dioxide per year or more after 2024. The Government of the Russian Federation approves lists of economic activities accompanied by greenhouse gas emissions and indicators of such activities.»

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Combustion of hydrogen-containing gas in hydrogen and steam boilers

In 2015, the Russian Federation signed the Paris Agreement, under which it committed itself to reducing greenhouse gas emissions.

The main greenhouse gases produced by combusting fossil fuels include water vapor, carbon dioxide, and nitrogen oxides.

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Combustion of hydrogen-containing gases in gas turbine plants

The use of hydrogen as a fuel gas is becoming a hot topic. This is primarily due to the fact that when burning hydrogen, no carbon dioxide is released, but only water vapor is formed. Thus, when burning one kilogram of hydrogen (H2), 120 MJ of thermal energy and 9 kg of water vapor (H2O) are released. When burning one kilogram of methane (CH4), 50 MJ of thermal energy is released, as well as 2.75 kg of carbon dioxide (CO2) and 2.25 kg of water vapor (H2O), that is, 5 kg of greenhouse gases.

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Prospects for reducing greenhouse gas emissions in the energy sector of the Russian Federation

The Paris Climate Agreement was adopted on 12 December 2015 following the 21st Conference of the Framework Convention on Climate Change (UNFCCC) in Paris.

The document was signed by 175 countries, including Russia.

The purpose of the agreement is to “strengthen the implementation” of the UN Framework Convention on Climate Change, in particular, to keep the increase in global average temperature “well below” 2 °C and “make efforts” to limit the increase in temperature to 1.5 °C.

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Reduction of CO2 emissions from the combustion of gaseous fuels in boilers

One of the ways to reduce the specific CO2 emissions of boilers is to increase the efficiency of the boiler by condensing the water vapor of the flue gases.

When burning natural gas, the use of the heat of condensation of water vapors of flue gases, the efficiency of the boiler unit can be increased by 10-11%.

The resulting condensate will be saturated with carbon dioxide.

To use the condensate, the carbon dioxide must be removed using a decarbonizer.

One way to neutralize the carbon dioxide dissolved in the condensate is to add caustic soda.

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Hydrogen hype in the air

Here’s an energy quiz. Question: do you think this statement is true?

“Unlike fossil fuels, which emit planet-warming carbon dioxide when they’re burned, hydrogen mostly produces water.”

Answer: false.

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The use of hydrogen in energy: environmental issues.

Currently, there are more and more publications about the use of hydrogen as a fuel gas. Interest in this topic is due to the fact that when burning hydrogen, only water vapor is formed and no carbon dioxide is released.

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Decarbonization: are we going the right way?

Now there is a lot of talk about decarbonization, with an emphasis on
carbon emissions. But few people talk about water vapor, which has an even more
disastrous effect. Have you forgotten or is it not time yet?

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