Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Upgrading bio-oil over different solid catalysts | |
| Zhang, Qi; Chang, Jie; Wang, TieJun; Xu, Ying | |
| 2006-11-15 | |
| Source Publication | ENERGY & FUELS
 |
| ISSN | 0887-0624 |
| Volume | 20Issue:6Pages:2717-2720 |
| Corresponding Author | zhangqi@ms.giec.ac.cn |
| Abstract | Solid acid 40SiO(2)/TiO(2)-SO(4)(2-) and solid base 30K(2)CO(3)/Al(2)O(3)-NaOH were prepared and compared with catalytic esterification activity according to the model reaction. Upgrading bio-oil by solid acid and solid base catalysts in the conditioned experiment was investigated, in which dynamic viscosities of bio-oil was lowered markedly, although 8 months of aging did not show much viscosity to improve its fluidity and enhance its stability positively. Even the dehydration by 3A molecular sieve still kept the fluidity well. The density of upgraded bio-oil was reduced from 1.24 to 0.96 kg/m(3), and the gross calorific value increased by 50.7 and 51.8%, respectively. The acidity of upgraded bio-oil was alleviated by the solid base catalyst but intensified by the solid acid catalyst for its strong acidification. The results of gas chromatography-mass spectrometry analysis showed that the ester reaction in the bio-oil was promoted by both solid acid and solid base catalysts and that the solid acid catalyst converted volatile and nonvolatile organic acids into esters and raised their amount by 20-fold. Besides the catalytic esterification, the solid acid catalyst carried out the carbonyl addition of alcohol to acetals. Some components of bio-oil undertook the isomerization over the solid base catalyst. |
| Subtype | Article |
| Other Abstract | Solid acid 40SiO(2)/TiO2-SO42- and solid base 30K(2)CO(3)/Al2O3-NaOH were prepared and compared with catalytic esterification activity according to the model reaction. Upgrading bio-oil by solid acid and solid base catalysts in the conditioned experiment was investigated, in which dynamic viscosities of bio-oil was lowered markedly, although 8 months of aging did not show much viscosity to improve its fluidity and enhance its stability positively. Even the dehydration by 3A molecular sieve still kept the fluidity well. The density of upgraded bio-oil was reduced from 1.24 to 0.96 kg/m(3), and the gross calorific value increased by 50.7 and 51.8%, respectively. The acidity of upgraded bio-oil was alleviated by the solid base catalyst but intensified by the solid acid catalyst for its strong acidification. The results of gas chromatography-mass spectrometry analysis showed that the ester reaction in the bio-oil was promoted by both solid acid and solid base catalysts and that the solid acid catalyst converted volatile and nonvolatile organic acids into esters and raised their amount by 20-fold. Besides the catalytic esterification, the solid acid catalyst carried out the carbonyl addition of alcohol to acetals. Some components of bio-oil undertook the isomerization over the solid base catalyst. |
| Keyword | Biomass Pyrolysis Liquid Diesel Emulsions Pressure Engines |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1021/ef060224o |
| WOS Subject Extended | Energy & Fuels ; Engineering |
| URL | 查看原文 |
| WOS Keyword | BIOMASS PYROLYSIS LIQUID ; DIESEL ; EMULSIONS ; PRESSURE ; ENGINES |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000242022300065 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/3486 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Univ Sci & Technol China, Dept Thermanl Sci & Energy Engn, Hefei 230027, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Qi,Chang, Jie,Wang, TieJun,et al. Upgrading bio-oil over different solid catalysts[J]. ENERGY & FUELS,2006,20(6):2717-2720. |
| APA | Zhang, Qi,Chang, Jie,Wang, TieJun,&Xu, Ying.(2006).Upgrading bio-oil over different solid catalysts.ENERGY & FUELS,20(6),2717-2720. |
| MLA | Zhang, Qi,et al."Upgrading bio-oil over different solid catalysts".ENERGY & FUELS 20.6(2006):2717-2720. |
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