Study on adsorption capacity of VOCs on activated carbon at medium-high temperature

ZHANG Zhi; MA Xiuwei; LI Jinjin; YANG Linjun

doi:10.11949/0438-1157.20190669

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Study on adsorption capacity of VOCs on activated carbon at medium-high temperature

Energy and environmental engineering | 更新时间：2026-07-24

- Study on adsorption capacity of VOCs on activated carbon at medium-high temperature
- CIESC Journal Vol. 70, Issue 12, Pages: 4811-4820(2019)
- 作者机构：
  
  东南大学能源热转换及其过程测控教育部重点实验室，江苏南京 210096
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190669
  CLC： X 51
- Received：17 June 2019，
  
  Revised：2019-09-17，
  
  Online First：09 June 2020，
  
  Published：05 December 2019
- 稿件说明：
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张智, 马修卫, 李津津, 杨林军. 中高温环境下VOCs在活性炭上的吸附性能研究[J]. 化工学报, 2019, 70(12): 4811-4820

ZHANG Zhi, MA Xiuwei, LI Jinjin, YANG Linjun. Study on adsorption capacity of VOCs on activated carbon at medium-high temperature[J]. CIESC Journal, 2019, 70(12): 4811-4820
张智, 马修卫, 李津津, 杨林军. 中高温环境下VOCs在活性炭上的吸附性能研究[J]. 化工学报, 2019, 70(12): 4811-4820 DOI： 10.11949/0438-1157.20190669.

ZHANG Zhi, MA Xiuwei, LI Jinjin, YANG Linjun. Study on adsorption capacity of VOCs on activated carbon at medium-high temperature[J]. CIESC Journal, 2019, 70(12): 4811-4820 DOI： 10.11949/0438-1157.20190669.

摘要

选用3种商用活性炭及其分别经HCl溶液和KOH溶液浸渍改性的商用活性炭，研究中高温烟气环境下，反应空速、吸附温度对挥发性有机物（VOCs）吸附性能的影响，以及VOCs种类、吸附剂特性等与VOCs吸脱附效果的关系。研究发现：空速对吸附穿透时间影响较大，但对饱和吸附量影响不显著。吸附温度与VOCs浓度对饱和吸附量存在较大影响，150℃时甲苯的饱和吸附量仅能达到90℃时的40％。高沸点吸附质更易被吸附，更难被脱附。

Abstract

A total of 5 kinds of activated carbons were selected

including 3 kinds of commercial activated carbons

one of which was impregnated with HCl solution and KOH solution

to study the influence of space velocity and adsorption temperature on the adsorption of volatile organic compounds (VOCs)

and the influence of types of VOCs and characteristics of adsorbents on the adsorption and desorption of VOCs at high temperature and low concentration. It was found that the space velocity had a great effect on the adsorption penetration time

but did not affect the adsorption capacity. Adsorption temperature and the concentration of VOCs was found to have a great influence on the adsorption capacity

and when the adsorption temperature was 150℃

adsorption capacity of adsorbent to toluene can only reach 40% of that at 90℃. High-boiling adsorbates are more easily adsorbed and more difficult to desorb.

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references

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