Impact of the Temperature, Pressure, and Particle Size on Tar Composition from Pyrolysis of Three Ranks of Chinese Coals
文献类型：期刊论文
| 作者 | Gong, Xiaomin1,2; Wang, Ze1; Deng, Shuang3; Li, Songgeng1; Song, Wenli1; Lin, Weigang1 |
| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2014-08-01 |
| 卷号 | 28期号:8页码:4942-4948 |
| 关键词 | CHROMATOGRAPHY MASS-SPECTROMETRY PRODUCT DISTRIBUTION PERHYDROUS COALS BEHAVIOR VITRINITES LIGNITE OXYGEN |
| ISSN号 | 0887-0624 |
| 其他题名 | Energy Fuels |
| 中文摘要 | Tar compositions from pyrolysis of three ranks of Chinese coals of Hailaer lignite, Fugu sub-bituminous coal, and Liulin bituminous coal under different temperatures and pressures were analyzed via a pyrolyer combined with gas chromatography/mass spectrometry (Py-GC/MS). A nuclear magnetic resonance (NMR) analysis was performed to characterize the coals. It was found that the relative content of polycyclic aromatic hydrocarbons (PAHs) is not as sensitive to temperature as monocyclic aromatic hydrocarbons (MAHs), which increased with increasing the pyrolysis temperature. A decreasing trend of the content of acids/esters was observed for all three ranks of coals. However, the three coals exhibited quite different trends with the temperature in terms of the relative content of aliphatic hydrocarbons. MAHs and PAHs were predominant components in the tar from Liulin bituminous coal. The tars from Hailaer lignite and Fugu sub-bituminous coal were rich in phenolics, which can be detected at a low temperature of 400 degrees C. In contrast, the phenolics were much less in the tar from Liulin bituminous coal and can merely remarkably be detected at a higher temperature of 600 degrees C. The contents of phenolics and aliphatic hydrocarbons decreased with increasing the pressure for all three coals, and the contents of MAHs and PAHs showed inverse trends with the pressure. This could result from the enhanced reactions of cydizations of aliphatics and scissions of the C-OH bond in phenolics by elevated pressure. C-19 alkane and p-cresol as model compounds of aliphatics and phenolics were pyrolyzed under high pressures to verify this point. For a larger particle size of Fugu sub-bituminous and Liulin bituminous coals, the contents of aliphatics decreased remarkably, while the contents of MAHs and PAHs were distinctly augmented. This could be attributed to the intraparticle secondary reactions. |
| 英文摘要 | Tar compositions from pyrolysis of three ranks of Chinese coals of Hailaer lignite, Fugu sub-bituminous coal, and Liulin bituminous coal under different temperatures and pressures were analyzed via a pyrolyer combined with gas chromatography/mass spectrometry (Py-GC/MS). A nuclear magnetic resonance (NMR) analysis was performed to characterize the coals. It was found that the relative content of polycyclic aromatic hydrocarbons (PAHs) is not as sensitive to temperature as monocyclic aromatic hydrocarbons (MAHs), which increased with increasing the pyrolysis temperature. A decreasing trend of the content of acids/esters was observed for all three ranks of coals. However, the three coals exhibited quite different trends with the temperature in terms of the relative content of aliphatic hydrocarbons. MAHs and PAHs were predominant components in the tar from Liulin bituminous coal. The tars from Hailaer lignite and Fugu sub-bituminous coal were rich in phenolics, which can be detected at a low temperature of 400 degrees C. In contrast, the phenolics were much less in the tar from Liulin bituminous coal and can merely remarkably be detected at a higher temperature of 600 degrees C. The contents of phenolics and aliphatic hydrocarbons decreased with increasing the pressure for all three coals, and the contents of MAHs and PAHs showed inverse trends with the pressure. This could result from the enhanced reactions of cydizations of aliphatics and scissions of the C-OH bond in phenolics by elevated pressure. C-19 alkane and p-cresol as model compounds of aliphatics and phenolics were pyrolyzed under high pressures to verify this point. For a larger particle size of Fugu sub-bituminous and Liulin bituminous coals, the contents of aliphatics decreased remarkably, while the contents of MAHs and PAHs were distinctly augmented. This could be attributed to the intraparticle secondary reactions. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Energy & Fuels ; Engineering, Chemical |
| 研究领域[WOS] | Energy & Fuels ; Engineering |
| 关键词[WOS] | CHROMATOGRAPHY MASS-SPECTROMETRY ; PRODUCT DISTRIBUTION ; PERHYDROUS COALS ; BEHAVIOR ; VITRINITES ; LIGNITE ; OXYGEN |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000340808800012 |
| 公开日期 | 2014-09-30 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11389]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, Xiaomin,Wang, Ze,Deng, Shuang,et al. Impact of the Temperature, Pressure, and Particle Size on Tar Composition from Pyrolysis of Three Ranks of Chinese Coals[J]. ENERGY & FUELS,2014,28(8):4942-4948. |
| APA | Gong, Xiaomin,Wang, Ze,Deng, Shuang,Li, Songgeng,Song, Wenli,&Lin, Weigang.(2014).Impact of the Temperature, Pressure, and Particle Size on Tar Composition from Pyrolysis of Three Ranks of Chinese Coals.ENERGY & FUELS,28(8),4942-4948. |
| MLA | Gong, Xiaomin,et al."Impact of the Temperature, Pressure, and Particle Size on Tar Composition from Pyrolysis of Three Ranks of Chinese Coals".ENERGY & FUELS 28.8(2014):4942-4948. |
入库方式： OAI收割
来源：过程工程研究所
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