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| 论文编号: |
122214O120120091 |
| 第一作者所在部门: |
301组 |
| 中文论文题目: |
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| 英文论文题目: |
Effect of ion-exchanged calcium, barium and magnesium on cross-linking reactions during direct liquefaction of oxidized lignite
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| 论文题目英文: |
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| 作者: |
王志青
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| 论文出处: |
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| 刊物名称: |
Fuel processing technology
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| 年: |
2012
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| 卷: |
94 |
| 期: |
1 |
| 页: |
34-39 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
2.781
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| 摘要: |
In this work the influences of alkaline earthmetals on cross-linking reactions (CLRs) during direct liquefaction of
lignitewere investigated. The oxidized lignite,which has been proved to be appropriate for quantitatively examine
the extent of CLR during direct liquefaction, was used as a model coal to study the effects of ion-exchanged
calcium, barium and magnesium on CLR during direct liquefaction of the oxidized lignite. The amounts of
tetrahydrofuran (THF) insoluble solid products after liquefaction were used to quantitatively evaluate the CLR
during liquefaction of the ion-exchanged coal. The results show that the oxidized coal is appropriate to quantitatively
examine the extent of CLR and the targeted ions are exchanged to the oxidized coal in the form of
highly-dispersed ion. The ion-exchanged Mg2+ suppresses the CLR during direct liquefaction of coal at both
lowand high temperature. However, the exchanged Ca2+ always promotes the CLR at the selected temperatures.
While the exchanged Ba2+ promotes the CLR at low temperature, but suppresses it at high temperature. |
| 英文摘要: |
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| 备注: |
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关闭窗口 |
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