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It is important to properly account for the emissions contribution of process units in order to develop cost-effective industrial decarbonization strategies. However, there is limited literature on this topic in the edible oil refining sector. This work addresses this research gap by developing a novel systematic technique for assessing decarbonization options in the palm oil refining process. This technique combines enterprise input-output analysis (EIOA) with graphical carbon emission pinch analysis (CEPA) into a unified approach to examining cost-effective decarbonization measures. Results show that the average carbon intensity of the system was 0.0432 kg CO 2 /$ while the total carbon footprint was 2339.97 kg CO 2. Palm fatty acid distillate (PFAD) has the highest carbon intensity contribution (0.0392 kg CO 2 /$) among the multiple products. Four scenarios to achieve a 20% reduction in CO 2 emissions based on heat integration and process changes were examined. Economic evaluation was also conducted for each proposed strategy. • An integrated EIO-CEPA technique was developed for industrial decarbonization. • The technique was applied on a palm oil refining process. • Carbon intensity reduction of 20% was set as a benchmark. • Four decarbonisation scenarios were analysed along with their economic feasibility. [ABSTRACT FROM AUTHOR]