Biogasification of methanol extract of lignite and its residue: A case study of Yima coalfield, China.
To investigate the biogas generation characteristics of the organic matter in lignite, methanol extraction was conducted to obtain the soluble fraction and the residual of lignite, which were subsequently taken as the sole carbon source for biogas production by a methanogenic consortium. Afterward,...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2022-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0275842 |
| _version_ | 1798027723968348160 |
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| author | Jianmin Liu Hengxing Ren Yi Jin Huan He Linyong Chen Guofu Li Baoyu Wang |
| author_facet | Jianmin Liu Hengxing Ren Yi Jin Huan He Linyong Chen Guofu Li Baoyu Wang |
| author_sort | Jianmin Liu |
| collection | DOAJ |
| description | To investigate the biogas generation characteristics of the organic matter in lignite, methanol extraction was conducted to obtain the soluble fraction and the residual of lignite, which were subsequently taken as the sole carbon source for biogas production by a methanogenic consortium. Afterward, the composition of compounds before and after the fermentation was characterized by UV-Vis, GC-MS, and HPLC-MS analysis. The results indicated that the methanogenic microorganisms could produce H2 and CO2 without accumulating CH4 by utilizing the extract, and the methane production of the residue was 18% larger than that of raw lignite, reaching 1.03 mmol/g. Moreover, the organic compounds in the methanol extract were degraded and their molecular weight was reduced. Compounds such as 1, 6-dimethyl-4-(2-methylethyl) naphthalene, 7-butyl-1-hexylnaphthalene, simonellite, and retene were completely degraded by microorganisms. In addition, both aromatic and non-aromatic metabolites produced in the biodegradation were detected, some of which may have a negative effect on the methanogenesis process. These results revealed the complexity of the interaction between coal and organism from another point of view. |
| first_indexed | 2024-04-11T18:56:11Z |
| format | Article |
| id | doaj.art-3e3a7970ed1b47eeac0073eb6aef235a |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-11T18:56:11Z |
| publishDate | 2022-01-01 |
| publisher | Public Library of Science (PLoS) |
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| series | PLoS ONE |
| spelling | doaj.art-3e3a7970ed1b47eeac0073eb6aef235a2022-12-22T04:08:10ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011710e027584210.1371/journal.pone.0275842Biogasification of methanol extract of lignite and its residue: A case study of Yima coalfield, China.Jianmin LiuHengxing RenYi JinHuan HeLinyong ChenGuofu LiBaoyu WangTo investigate the biogas generation characteristics of the organic matter in lignite, methanol extraction was conducted to obtain the soluble fraction and the residual of lignite, which were subsequently taken as the sole carbon source for biogas production by a methanogenic consortium. Afterward, the composition of compounds before and after the fermentation was characterized by UV-Vis, GC-MS, and HPLC-MS analysis. The results indicated that the methanogenic microorganisms could produce H2 and CO2 without accumulating CH4 by utilizing the extract, and the methane production of the residue was 18% larger than that of raw lignite, reaching 1.03 mmol/g. Moreover, the organic compounds in the methanol extract were degraded and their molecular weight was reduced. Compounds such as 1, 6-dimethyl-4-(2-methylethyl) naphthalene, 7-butyl-1-hexylnaphthalene, simonellite, and retene were completely degraded by microorganisms. In addition, both aromatic and non-aromatic metabolites produced in the biodegradation were detected, some of which may have a negative effect on the methanogenesis process. These results revealed the complexity of the interaction between coal and organism from another point of view.https://doi.org/10.1371/journal.pone.0275842 |
| spellingShingle | Jianmin Liu Hengxing Ren Yi Jin Huan He Linyong Chen Guofu Li Baoyu Wang Biogasification of methanol extract of lignite and its residue: A case study of Yima coalfield, China. PLoS ONE |
| title | Biogasification of methanol extract of lignite and its residue: A case study of Yima coalfield, China. |
| title_full | Biogasification of methanol extract of lignite and its residue: A case study of Yima coalfield, China. |
| title_fullStr | Biogasification of methanol extract of lignite and its residue: A case study of Yima coalfield, China. |
| title_full_unstemmed | Biogasification of methanol extract of lignite and its residue: A case study of Yima coalfield, China. |
| title_short | Biogasification of methanol extract of lignite and its residue: A case study of Yima coalfield, China. |
| title_sort | biogasification of methanol extract of lignite and its residue a case study of yima coalfield china |
| url | https://doi.org/10.1371/journal.pone.0275842 |
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