Statler College of Engineering and Mining Resources
Chemical and Biomedical Engineering
Carbon is an important resource for anaerobes to enhance biogas production. In this study, the possibility of using simulated pyrolysis gas (SPG) as a carbon source for biogas production was investigated. The effects of stirring speed (SS), gas holding time (GHT), and H2 addition on biomethanation of SPG were evaluated. The diversity and structure of microbial communities were also analyzed under an illumina MiSeq platform. Results indicated that at a GHT of 14 h and an SS at 400 rpm, SPG with up to 64.7% CH4could be bio-upgraded to biogas. Gas–liquid mass transfer is the limitation for SPG biomethanation. For the first time, it has been noticed that the addition of H2 can bioupgrade SPG to high quality biogas (with 91.1% CH4). Methanobacterium was considered as a key factor in all reactors. This study provides an idea and alternative way to convert lignocellulosic biomass and solid organic waste into energy (e.g., pyrolysis was used as a pretreatment to produce pyrolysis gas from biomass, and then, pyrolysis gas was bioupgraded to higher quality biogas via anaerobic digestion).
Digital Commons Citation
Li, Yeqing; Su, Dongfang; Luo, Sen; Jiang, Hao; Qian, Mingyu; Zhou, Hongjun; Street, Jason; Luo, Yan; and Xu, Quan, "Pyrolysis gas as a carbon source for biogas production via anaerobic digestion" (2017). Faculty & Staff Scholarship. 1932.
Li, Y., Su, D., Luo, S., Jiang, H., Qian, M., Zhou, H., … Xu, Q. (2017). Pyrolysis gas as a carbon source for biogas production via anaerobic digestion. RSC Advances, 7(66), 41889–41895. https://doi.org/10.1039/c7ra08559a