(2020) Bioresource Technology_Biodiesel synthesis from swine manure

Kim M., Jung S., Lee D.-J., Lin K.-Y.A., Jeon Y.J., Rinklebe J., Klinghoffer N.B., Kwon E.E.

(Elsevier Ltd) Bioresource Technology ISSN: 9608524 Vol.317 Issue. Article No.124032 DOI: 10.1016/j.biortech.2020.124032

This study demonstrates that the biodiesel (BD) from swine manure (SM) could be a promising way for large scale generation of biofuel. Also, the economic and environmental benefits of SM derived BD were evaluated. Transesterification of lipid contents extracted from the collected SM had low BD yield (14.2 wt%) using H₂SO₄ catalyst due to high acid value and impurities. However, thermo-chemical non-catalytic transesterification with a porous material showed 94.7 wt% yield of BD from the lipid in SM. Considering the current population of swine, the annual production of BD from SM was estimated. The SM derived BD could cover 19.7 and 46.8 wt% of BD currently produced in both Korea and the USA with the economic benefits of up to $96 million and $2.1 billion, respectively. The proposed approach also can save vast arable lands needed to cultivate oil-bearing feedstocks for BD production. © 2020 Elsevier Ltd

This work was carried out with the support of “Cooperative Research Program for Agriculture Science & Technology Development (Project title: CO2 Co-Feeding Catalytic Pyrolysis of Cattle Manure for Syngas Production, Project No. PJ01484402)” Rural Development Administration, Republic of Korea.