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| 论文编号: |
O120090115 |
| 第一作者所在部门: |
904组 |
| 中文论文题目: |
Novel Use of Residue from Direct Coal Liquefaction Process
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| 英文论文题目: |
Novel Use of Residue from Direct Coal Liquefaction Process
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| 论文题目英文: |
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| 作者: |
杨建丽 王寨霞 刘振宇 张玉贞
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| 论文出处: |
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| 刊物名称: |
Energy & Fuels
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| 年: |
2009
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| 卷: |
23 |
| 期: |
10 |
| 页: |
4717-4722 |
| 联系作者: |
刘振宇 |
| 收录类别: |
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| 影响因子: |
2.056
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| 摘要: |
Direct coal liquefaction residue (DCLR) is, commonly, designed to be used as a feed stock for gasification or combustion. Use of DCLR as a value added product is very important for improving overall economy of direct coal liquefaction processes. This study shows that the DCLR may be used as a pavement asphalt modifier. The modification ability is similar to that of Trinidad Lake Asphalt (TLA), a superior commercial modifier. Asphalts modified by two DCLRs meet the specifications of ASTM D5710 and BSI BS-3690 designated for the TLA-modified asphalts. The required addition amount for the DCLRs tested is less than that for TLA due possibly to the high content of asphaltene in DCLRs. Different compatibility was observed for the asphalts with the same penetration grade but from the different origin. Different components in the DCLR play different roles in the modification. Positive synergetic effects among the fractions were observed, which may due to the formation of the stable colloid structure. Unlike polymer-type modifier, the structure of asphalt-type modifier has a similarity with petroleum asphalts which favors the formation of a stable dispersed polar fluid (DPF) colloid structure and improves the performance of pavement asphalt.
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