For decades, the increase in anthropogenic CO2 emissions has represented one of the main problems to be solved or, at least, to stem. Over the years, the growth of this factor has inevitably caused a significant environmental impact leading to global warming and an increase in energy demand. The rise in energy production allowed to satisfy this demand mainly exploiting fossil fuels (coal, natural gas, etc.) as raw material in power plants. However, there have been several international agreements that aimed to reduce and mitigate the CO2 emission and, consequently, to keep the rise in global average temperature under control. Strong measures have been adopted with the purpose of making the power plant processes more efficient.