Two types of natural graphite host matrix for composite activated carbon adsorbents
Two types of natural graphite host matrix for composite activated carbon adsorbents
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用于复合活性炭吸附剂的两种天然石墨基质
DOI：
10.1016/j.applthermaleng.2011.07.011
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发表时间：
2013-02
期刊：
影响因子：
--
通讯作者：
Critoph, R.E.
中科院分区：
文献类型：
--
作者：
Metcalf, S.J.;Thorpe, R.;Tamainot-Telto, Z.;Wang, L.W.;Critoph, R.E.
研究了两种用于压缩系统的活性炭（AC）吸附剂主体：膨胀天然石墨（ENG）和经酸处理的膨胀天然石墨（ENG-TA）。结果表明，压缩的 ENG-TA 比压缩的 ENG 具有更高的导热率。对于 830 kg/m3 的密度，压缩 ENG-TA 的导热率为 336 W/(mK)，与具有相似密度的压缩 ENG 相比高出一百倍。压缩 ENG-TA 的渗透性比压缩 ENG 更为关键。例如，对于 300 kg/m3 的相似密度，压缩 ENG-TA 的渗透率为 2.01 × 10−15m2，而压缩 ENG 的渗透率为 1.07 × 10−13m2。以 ENG 为主体的 AC 压缩复合吸附剂的高密度范围为 700–720 kg/m3。考虑到以ENG-TA为主体的复合AC在高密度下渗透率太低，因此密度范围限制在小于500 kg/m3。 AC/ENG-TA复合材料的导热系数远高于AC/ENG复合材料的导热系数，比AC/ENG复合材料的最佳值高约7倍。
Two types of host for activated carbon (AC) adsorbents intended for use in compressed systems are studied: expanded natural graphite (ENG) and expanded natural graphite treated with acid (ENG-TA). Results show that compressed ENG-TA has much higher thermal conductivity than the compressed ENG. For a density of 830 kg/m3the thermal conductivity of compressed ENG-TA is 336 W/(mK), and it is of the order of one hundred times higher compared with compressed ENG having similar density. The permeability of compressed ENG-TA is much more critical than the compressed ENG. For example for similar density of 300 kg/m3, the permeability of compressed ENG-TA is 2.01 × 10−15m2while the permeability of compressed ENG is 1.07 × 10−13m2. Compressed composite adsorbents of AC with ENG as host were produced with a high density in the range 700–720 kg/m3. Considering that the permeability will be too low using composite AC with ENG-TA as host in high density, the density range was restricted to less than 500 kg/m3. The thermal conductivity of AC/ENG-TA composite is much higher than the thermal conductivity of AC/ENG composite, and it is about 7 times higher than the optimal value of AC/ENG composite.
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影响因子：
29.5
作者：
Ruzhu Wang;R. G. Oliveira
通讯作者：
Ruzhu Wang;R. G. Oliveira
影响因子：
6.4
作者：
Z. Tamainot-Telto;R. E. Critoph
通讯作者：
Z. Tamainot-Telto;R. E. Critoph
DOI：
10.1016/0890-4332(93)90014-m
发表时间：
1993-05
期刊：
Heat Recovery Systems and Chp
影响因子：
--
作者：
P. Neveu;J. Castaing
通讯作者：
P. Neveu;J. Castaing
致密膨胀天然石墨的各向异性导热率和渗透率
影响因子：
6.4
作者：
Wang, R. Z.;Critoph, R. E.;Tamainot-Telto, Z.;Metcalf, S. J.;Wang, L. W.
通讯作者：
Wang, L. W.
影响因子：
6.4
作者：
L.W Wang;J.Y Wu;R.Z Wang;Y.X Xu;S.G Wang;X.R Li
通讯作者：
L.W Wang;J.Y Wu;R.Z Wang;Y.X Xu;S.G Wang;X.R Li