Yao Meng, Zhang Qiong, Hand David W, Perram David, Taylor Roy
J Air Waste Manag Assoc. 2009 Jan;59(1):31-6. doi: 10.3155/1047-3289.59.1.31.
There are increasing concerns about indoor volatile organic compounds (VOCs) regarding their health effects and frequent occurrence. Adsorption using granular activated carbon (GAC) is a safe methodology for removing VOCs from indoor air. Although GAC has been widely used to remove VOCs from indoor air, the use of activated carbon fiber cloth (ACFC) is a promising substitute to the conventional activated carbon because of its regenerative properties; hence, this paper provides promising results for the application of ACFC as a regenerative adsorbent for the removal of VOCs from indoor air. The impacts of operating variables on the adsorption/regeneration performance of the ACFC were assessed. A single-layer ACFC exhibited remarkable adsorption and regenerative properties using 100 parts per billion by volume (ppbv) toluene as the indoor contaminant. The use of Joule heating regeneration technique showed that the ACFC was rapid and efficient in removing the low initial loading of toluene. Even after continuous adsorption/regeneration cycles the ACFC showed very good performance. After over 300 heating and cooling cycles the ACFC showed excellent durability and adsorption capacity.
人们越来越关注室内挥发性有机化合物（VOCs）对健康的影响以及它们的频繁出现。使用颗粒活性炭（GAC）进行吸附是一种从室内空气中去除VOCs的安全方法。尽管GAC已被广泛用于从室内空气中去除VOCs，但由于其可再生特性，使用活性炭纤维布（ACFC）是传统活性炭的一种有前途的替代品；因此，本文为ACFC作为从室内空气中去除VOCs的可再生吸附剂的应用提供了有前景的结果。评估了操作变量对ACFC吸附/再生性能的影响。使用体积分数为十亿分之一（ppbv）的甲苯作为室内污染物时，单层ACFC表现出显著的吸附和再生性能。焦耳热再生技术的使用表明，ACFC在去除低初始负载的甲苯方面快速且高效。即使经过连续的吸附/再生循环，ACFC仍表现出非常好的性能。经过300多次加热和冷却循环后，ACFC表现出优异的耐久性和吸附能力。
