Abstract

The adsorption of phenol by activated carbons obtained by the alkaline thermolysis (KOH, 800°C) of fossil coals of various degrees of metamorphism (C^daf = 70.4–95.6%) was studied. Kinetic dependences and adsorption isotherms were obtained at initial concentrations of ≤3 mg/cm³ (25°C). The rate constants of absorption of the adsorbate, maximum and specific capacities for phenol, and their dependences on C^daf were determined. The main processes of the interaction of phenol with surface adsorption centers are discussed.

中文翻译：

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不同变质煤基活性炭对苯酚的吸附

摘要

研究了通过不同变质程度（C ^daf = 70.4-95.6%）的化石煤的碱性热解（KOH，800°C）获得的活性炭对苯酚的吸附。在≤3 mg/cm ³ (25°C)的初始浓度下获得动力学相关性和吸附等温线。确定了吸附物的吸收速率常数、苯酚的最大容量和比容量以及它们对 C ^daf的依赖性。讨论了苯酚与表面吸附中心相互作用的主要过程。