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CARBONLETT, vol. 28, no. 1, pp.81-86, 2018

DOI: http://dx.doi.org/ DOI:10.5714/CL.2018.28.081

Adsorptive removal of odour substances and NO and catalytic esterification using empty fruit bunch derived biochar

Hyung Won Lee1,*, Jae-Kon Kim2,*, and Young-Kwon Park1,♠

Affiliation: 1School of Environmental Engineering, University of Seoul, Seoul 02504, Korea
2Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority, Cheongju 28115, Korea

Abstract: Empty fruit bunch (EFB) char was used to remove NOx and odorous substances. The physicochemical properties of the EFB chars were altered by steam or KOH treatments. The Brunauer-Emmett-Teller surface area and porosity were measured to determine the properties of the modified EFB chars. The deNOx and adsorption test for hydrogen sulphide and acetaldehyde were performed to determine the feasibility of the modified EFB chars. The KOH-treated EFB (KEFB) char revealed higher deNOx efficiency than with commercial activated carbon. The Cu-impregnated EFB char also had high deNOx efficiency at temperatures higher than 150°C. The KEFB char showed the highest hydrogen sulphide and acetaldehyde adsorption ability, followed by the steam-treated EFB char and untreated EFB char. Moreover, the product prepared by sulfonation of EFB char showed excellent performance for esterification of palm fatty acid distillate for biodiesel production.

Keyword: char, adsorption, activation, catalyst, pyrolysis