| 基于铈基添加剂的微粒捕集器催化再生研究 |
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| 引用本文： | 龚金科,龙罡,蔡皓,吴钢,余明果. 基于铈基添加剂的微粒捕集器催化再生研究[J]. 内燃机学报, 2011, 0(6) |
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| 作者姓名： | 龚金科 龙罡 蔡皓 吴钢 余明果 |
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| 作者单位： | 湖南大学汽车车身先进设计制造国家重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(50876027); 湖南省自然科学基金资助项目(10JJ6080); 湖南大学汽车车身先进设计制造国家重点实验室自主课题(61075002) |
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| 摘 要： | 基于微粒捕集器(DPF)NO2辅助再生计算模型,建立了添加铈基添加剂时DPF的催化再生计算模型,并进行了试验验证.采用铈基添加剂提高DPF的再生性能,在4种典型工况下对有添加剂和无添加剂的DPF进行了催化再生对比试验.结果表明:有添加剂的DPF在低排气温度下再生性能明显优于无添加剂的DPF再生性能,但仍然难以达到微粒平衡状态;在中高排气温度下再生性能也得到了提高,达到微粒平衡状态的时间缩短,微粒平衡质量减小.这对于提高柴油机的经济性,减少动力性损失,延长DPF的寿命十分必要.
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| 关 键 词： | 微粒捕集器 铈基添加剂 催化再生 氧化速率 |
Study on Diesel Particulate Filter Catalytic Regenerating with Ceria-Based Additive |
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| GONG Jin-ke,LONG Gang,CAI Hao,WU Gang,YU Ming-guo. Study on Diesel Particulate Filter Catalytic Regenerating with Ceria-Based Additive[J]. Transactions of Csice, 2011, 0(6) |
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| Authors: | GONG Jin-ke LONG Gang CAI Hao WU Gang YU Ming-guo |
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| Affiliation: | GONG Jin-ke,LONG Gang,CAI Hao,WU Gang,YU Ming-guo(State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Hunan University,Changsha 410082,China) |
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| Abstract: | Based on NO2-assisted regeneration model of diesel particulate filter(DPF),a catalytic regen-eration model with ceria-based additive was developed.A ceria-based additive was used to improve the regeneration DPF performance.Bench experiments under 4 typical operating conditions were conducted.Results show that the regeneration performance of DPF with additive is much better than that without addi-tive at low exhaust temperature,but still can not reach a balance status.The regeneration DPF perform-ance with a... |
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| Keywords: | diesel particulate filter ceria-based additive catalytic regenerating oxidation rate |
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