Siemens AG, Duisburg, Germany.
Faculty of Engineering and Natural Sciences, Department of Mechanical Engineering, Iskenderun Technical University, Hatay, Turkey.
Environ Technol. 2021 Jun;42(14):2122-2131. doi: 10.1080/09593330.2019.1692913. Epub 2019 Nov 17.
In this paper, the adsorption behaviour of activated carbon was investigated experimentally for changing butane concentration, temperature and relative humidity. Throughout the study, the coconut-based activated carbon was used. During the tests applied for butane concentration of 2, 4, 8, 20, 40 and 80 ppm, the temperature was taken as 15, 23 and 33°C for a relative humidity of 50, 70 and 90%. The results showed that butane concentration had a direct relationship with adsorption. However, temperature and adsorption were inversely proportional. As a result of the adsorption between activated carbon and butane, it led to physical adsorption as one of the most important types of adsorption due to Van der Waals forces among molecules. To create physical adsorption, lower temperature ranges were more convenient. The relative humidity of the air reduced the time to reach the maximum saturation rate. The increased relative humidity also reduced the amount of butane adsorbed. Also, 50% relative humidity range was an important turning point. Relative humidity affected the adsorption of butane at a relative humidity of 50%. However, the relative humidity at 70 and 90% significantly reduced butane adsorption; on the other hand, it considerably increased the adsorption of moisture.
本文通过实验研究了活性炭对不同丁烷浓度、温度和相对湿度的吸附行为。在整个研究过程中，使用了椰子壳基活性炭。在应用于浓度为 2、4、8、20、40 和 80ppm 的丁烷的测试中，温度设定为 15、23 和 33°C，相对湿度设定为 50、70 和 90%。结果表明，丁烷浓度与吸附之间存在直接关系，但温度与吸附成反比。由于分子之间的范德华力，活性炭和丁烷之间的吸附导致了物理吸附，这是最重要的吸附类型之一。为了实现物理吸附，较低的温度范围更为方便。空气的相对湿度降低了达到最大饱和速率的时间。相对湿度的增加也减少了吸附的丁烷量。此外，50%的相对湿度范围是一个重要的转折点。在相对湿度为 50%时，相对湿度会影响丁烷的吸附。然而，在相对湿度为 70%和 90%时，丁烷的吸附显著减少，另一方面，水蒸气的吸附显著增加。
