Research on the improvement of carbon neutrality by utilizing agricultural waste: Based on a life cycle assessment of biomass briquette fuel heating system

Various environmental issues caused by global warming demand urgent action to reduce greenhouse gas emissions. Implementing a carbon neutrality strategy emerges as an effective solution to alleviate environmental pollution. The use of biomass briquette fuel significantly contributes to promoting carbon neutrality. In this study, the life cycle assessment (LCA) method was employed to create a model for assessing carbon reduction in biomass briquette fuel heating systems. The findings suggested that the use of agricultural waste briquette fuel for heating has great potential for carbon neutrality. The utilization of 100,000 tons of biomass briquette fuel by a heating enterprise resulted in a remarkable reduction of 335,679 tons of CO2-eq, equivalent to 91,305 tons of carbon. This substitution also displaced 63,558 tons of coal, leading to a reduction of 5460 tons of SO2 and 1012 tons of PM10. The sensitivity analysis identified that transportation distance, energy consumption, and pollutant removal technologies were the primary drivers influencing carbon reduction. Subsequently, some recommendations were proposed to enhance the carbon neutrality of biomass briquette fuel heating systems. These findings have significant implications for achieving carbon neutrality.