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黏胶基活性炭纤维对三氯一氟甲烷的吸附性能 被引量:3

Adsorption of CFC-11 on Viscose Rayon-Based Activated Carbon Fiber
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摘要 采用动态吸附试验,利用自制的试验装置研究了黏胶基活性炭纤维〔Viscose-Based Activated Carbon Fibre(Viscose-BasedACF)〕对三氯一氟甲烷(CFC-11)气体的吸附效果.在进口ρ(CFC-11)为0.5~8.0 mg/L,空塔气速为0.2 m/s,气体体积流率为0.72 m^3/h的条件下,计算出黏胶基活性炭纤维对CFC-11气体的吸附,容量为0.788 g/g,传质区高度为0.077 2 m,全床层饱和度为65.47%,并作出活性炭纤维(AFC)的穿透曲线.用Freundlich方程对等温吸附曲线进行拟合显示,进口ρ(CFC-11)在0.5~8.0 mg/L时,Freundlich方程较好地拟合了等温吸附曲线,且便于实际计算. Adsorption behaviors of CFC-11 organic emissions on viscose-based activated carbon fiber(Viscose-Based ACF) were studied in self-made experimental devices using dynamic adsorption experiments with inlet concentration 0.5-8.0(mg/L),superficial gas velocity 0.2(m/s) and gas volume flow rate 0.72(m3/h).The breakthrough curve of adsorption for CFC-11 on the Rayon-based ACF was obtained.Based on the test results,the adsorption capacity of Rayon-based ACF,height of mass transfer zone and bed saturation were calculated to be 0.788(g/g),0.0772 m and 65.47%,respectively.Adsorption isotherms were fitted by the Freundlich equation.The results showed that when the CFC-11 inlet was between 0.5-8.0(mg/L),the Freundlich equation showed good agreement with the adsorption isotherm.
出处 《环境科学研究》 EI CAS CSCD 北大核心 2009年第9期1089-1092,共4页 Research of Environmental Sciences
基金 国家"十一五"科技支撑计划项目(2006BAF02A17)
关键词 活性炭纤维 三氯一氟甲烷(CFC-11) 穿透曲线 等温吸附曲线 activated carbon fibre(ACF) trichlorofluoromethane(CFC-11) breakthrough curve adsorption isotherm
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