<p>Global demand for palm oil has risen due to its widespread use in the food industry, low production costs, and socioeconomic benefits, leading to increased production and significant waste generation in the form of empty fruit bunches (EFB). A sustainable solution is the production of acetophenone (AP), a reliable octane booster, through the catalytic hydrogenation of lignin derived from EFB, offering an alternative to the conventional ethylbenzene oxidation process. Yet, no environmental assessment has been performed on the proposed route to identify the impact of the emissions generated during the proposed AP production. In this study, for the first time, a life cycle assessment (LCA) of production of octane booster components derived from EFB is generated. There were four stages in the LCA: (i) goal and scope; (ii) life cycle inventory; (iii) life cycle impact assessment; and (iv) data interpretation. The environmental performance was assessed in several impact categories, with the global warming potential (GWP) value of 3.58&#xa0;kg CO₂-eq/kg AP. The results showed that total electricity consumption is the main GWP drivers. This study also revealed that the result of AP production from lignin does not deliver lower greenhouse gas emissions under the current process configuration when compared with several fossil-based octane boosters. Finally, sensitivity and Monte Carlo analyses were performed to evaluate the key LCA model parameters for potential improvements. These analyses revealed that the GWP score of the lignin-based octane booster ranged from 3.09 to 4.15&#xa0;kg CO₂-eq/kg AP, influenced by total electricity consumption. Hence, reducing energy consumption in AP production could lead to a remarkable decrease in the GWP making this process more sustainable.</p> Graphical Abstract <p>Process flow diagram of valorisation of palm oil empty fruit bunch into octane booster component.</p>