Using hydrogen-containing fuel mixtures to reduce greenhouse gas emissions
Abstract
Using hydrogen-containing fuel mixtures to reduce greenhouse gas emissions
Incoming article date: 12.10.2025The aim of this study is to evaluate the environmental and economic efficiency of using hydrogen-natural gas mixtures in existing fuel systems. The work is based on a stoichiometric calculation of emissions and a comparative cost analysis. It was found that the linear relationship between the hydrogen content and CO₂ emission reduction allows for a 30% reduction for a mixture containing 30% vol. H₂. Water vapor emissions are also reduced by 15%, which is explained by the difference in the combustion stoichiometry of methane and hydrogen. The article substantiates the economic feasibility of this technology when using inexpensive hydrogen produced locally, for example, through waste recycling.
Keywords: gas, natural gas, hydrogen, greenhouse gases, gas mixture, carbon dioxide