Carbon dioxide resource utilization in methanol products: Carbon emission projections, visual analysis, life cycle assessment

China is becoming the world's biggest energy consumer and carbon dioxide emitter due to the excessive worldwide emissions of carbon dioxide. As a result, resource utilization and carbon emission reduction have taken center stage in China's energy growth. This paper provides an overview and analysis of China's annual total carbon emissions from 2012 to 2021, as well as a projection of the country's key carbon emission industries' carbon dioxide emissions over the next several decades. With the help of the Web of Science bibliometric analysis function and the CiteSpace software visual analysis function, it analyzes the systematic knowledge mapping of the research literature related to carbon emission reduction, which corroborates that carbon emission reduction is the future. Further strengthening the research on carbon dioxide resource utilization is expected to add bricks and mortar to the beautiful vision of "carbon neutrality" by 2060. The consumption of hydrogenated carbon dioxide (CO2) 2 ) for the production of one ton of methanol can reach up to 1431 tons. This process is an effective and environmentally friendly method for reducing carbon emissions. The methodology and mechanism of utilizing carbon dioxide resources for methanol preparation are systematically summarized, with a specific focus on the application of green methanol as ship fuel. The analysis primarily examines the calculation of carbon emissions throughout the entire life cycle of carbon dioxide and the production of green hydrogen for methanol. The hypothesis is that low-carbon methanol emissions are one-third lower than those of fuel oil, and this conclusion is further supported by evidence showing that low-carbon methanol has a significant carbon reduction effect. Simapro 9.0 software was used to evaluate the life cycle of carbon dioxide preparation for methanol production. The results indicated that the factors with the greatest influence are CO2 2 utilization and green hydrogen production. To make the process more environmentally friendly, the capture process should be improved, and efforts should be made to reduce electricity consumption and coal usage. These measures can effectively reduce the environmental impact of the entire production chain. Furthermore, it anticipates the future utilization of carbon dioxide resources in the application market of the new materials industry, and aims to further advance the development of the methanol industry.