中文摘要：

摘要：炭化微米木纤维（CMWF）滤芯不但绿色环保、成本低、净化效率高．而且特有的活性炭性质使其对柴油机排放中的超微碳烟颗粒具有很强的吸附能力。分析炭化微米木纤维滤芯及柴油车排放颗粒物特性．利用混合LennardJones势能——巨正则系综蒙特卡罗法（混合LJ—GCEMC）模拟超微碳烟颗粒在炭化微米木纤维活性炭孔中的吸附，结果表明，CMWF滤芯的孔径范围可以确定为320～420nm之间．孔径过小或过大都会阻碍积聚态粒子吸附数密度的增加；模拟结果也表明积聚态粒子吸附数密度随压力的增加而增加．而随温度的升高略有减少。

英文摘要：

Carbonized Micron Wood Fiber （CMWF） filter with low cost, high efficiency and green environmental-protective quality has some properties of active carbon, which also can works well for uhrafine particles in Particulate Material （PM）. The characteristics of CMWF filter and PM were analyzed. The absorption process of uhrafine particles in CMWF filter was simulated based on hybrid Lennard Jones--Grand Canonical Ensemble Monte Carlo method （hybrid LJ-GCEMC）. The simulation results show that the too small or too large pores are all the obstacle of the increase of the number density and the optimal range can be 320 nm to 420 nm. The simulation also denotes that adsorption number density increases with the increase of pressure and decreases slightly with the increase of temperature.