Replacing diesel with LNG leads to a fuel economy of up to 60%

May 28, 2019. The substitution of diesel oil with liquefied natural gas (LNG) for cargo transportation in São Paulo would possibly lead to a significant reduction in fuel costs and greenhouse gas (GHG) emissions—as well as other pollutants—in São Paulo State, Brazil. This was presented in a study by the Research Centre for Gas Innovation (RCGI) supported by the São Paulo Research Foundation (FAPESP) and Shell.

“The biggest benefits, both in terms of pollution reductions and in prices of the fuels being discussed herein, are perceived in São Paulo and Campinas, which are regions with greater potential for substituting diesel oil with LNG and where diesel oil is more expensive than it is in the rest of the State. Our results show that in São Paulo, LNG can be up to 60% cheaper than diesel oil,” said Dominique Mouette, Professor in the School of Arts, Sciences, and Humanities at the University of São Paulo (EACH-USP), in an RCGI press release.

The objective of the study, which resulted in an article published in Science of The Total Environment, was to evaluate the economic and environmental benefits of substituting diesel oil with LNG for the purpose of establishing a Blue Corridor in the state. This concept appears in Russia and designates routes on which trucks use LNG instead of diesel oil.

To analyze the substitution of diesel with LNG, the investigation considered four scenarios. “Within the best scenario, the use of LNG would reduce fuel costs by up to 40%; equivalent CO2 emissions by 5.2%; particulate materials by 88%; nitrogen oxides (NOx) by 75%; and would eliminate hydrocarbon emissions,” states Pedro Gerber Machado, a researcher at the University of São Paulo’s Institute of Energy and Environment and coauthor of the article.

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