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Regeneration of a Porous Iron-Containing Carbon Adsorbent under Plasma-Catalytic Conditions Assisted by Microwave Irradiation
Petroleum Chemistry ( IF 1.4 ) Pub Date : 2021-05-20 , DOI: 10.1134/s0965544121050078
A. V. Chistyakov , E. Yu. Liberman , V. I. Pasevin , G. N. Bondarenko , O. V. Arapova , M. V. Tsodikov

Abstract

This article reports experimental data on a double-step technology for processing a model organic contaminant (m-cresol) adsorbed in the pores of an iron-containing carbon adsorbent (specific surface area 616 m2/g) under microwave irradiation. The first step comprised the decomposition of cresol into a hydrogen-containing gas and a carbon residue under plasma-catalytic conditions assisted by microwave irradiation at an induced temperature of 600°C. Cresol was completely converted after 25 min of the MW irradiation. The second step consisted of adsorbent regeneration (by CO2 treatment under MW irradiation to remove the carbon residue) followed by thermal shock treatment (by decomposition of a pre-adsorbed ammonium hydroxide). After the regeneration, the specific surface area was 500 m2/g. The regenerated adsorbent exhibited almost the same cresol adsorption capacity as the starting material.



中文翻译:

微波辅助等离子体催化条件下含铁多孔碳吸附剂的再生

摘要

本文报导的双步骤技术的实验数据用于处理模型有机污染物(吸附在甲酚)的含铁碳吸附剂(比表面积616米细孔2微波辐射下/克)。第一步包括在诱导温度为600°C的微波辐射的辅助下,在等离子体催化条件下,将甲酚分解为含氢气体和碳残留物。MW照射25分钟后,甲酚完全转化。第二步包括吸附剂再生(通过CO 2在MW辐射下进行处理以除去碳残留物),然后进行热激处理(通过预吸附的氢氧化铵的分解)。再生后,比表面积为500m 2 / g。再生的吸附剂表现出与起始材料几乎相同的甲酚吸附能力。

更新日期:2021-05-22
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