Integrated enterprise input-output and carbon emission pinch analysis for carbon intensity reduction in edible oil refinery

Tamelarasan Ramanath, Dominic C.Y. Foo, Raymond R. Tan, Jully Tan

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)

Abstract

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 CO2/$ while the total carbon footprint was 2339.97 kg CO2. Palm fatty acid distillate (PFAD) has the highest carbon intensity contribution (0.0392 kg CO2/$) among the multiple products. Four scenarios to achieve a 20% reduction in CO2 emissions based on heat integration and process changes were examined. Economic evaluation was also conducted for each proposed strategy.

Original languageEnglish
Pages (from-to)826-842
Number of pages17
JournalChemical Engineering Research and Design
Volume193
DOIs
Publication statusPublished - May 2023

Keywords

  • Carbon emissions pinch analysis
  • Carbon footprint
  • Decarbonization
  • Enterprise Input-Output Analysis
  • Graphical methods
  • Process integration

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