Preparation of hierarchical nitrogen-rich porous carbon from coal tar for catalytic desulfurization

SUN Minghui; CHEN Jingyuan; XIAO Nan; CHEN Aobo; WANG Xuzhen; QIU Jieshan

doi:10.11949/0438-1157.20190998

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Preparation of hierarchical nitrogen-rich porous carbon from coal tar for catalytic desulfurization

Catalysis\, kinetics and reactors | 更新时间：2026-07-24

- Preparation of hierarchical nitrogen-rich porous carbon from coal tar for catalytic desulfurization
- CIESC Journal Vol. 71, Issue 2, Pages: 660-668(2020)
- 作者机构：
  
  1. 精细化工国家重点实验室，辽宁大连 116024
  2. 大连理工大学化工学院，辽宁省功能材料化工重点实验室，辽宁大连 116024
  3. 北京化工大学化学工程学院，北京 100029
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190998
  CLC： TQ 127.1
- Received：03 September 2019，
  
  Revised：2019-11-08，
  
  Online First：14 August 2020，
  
  Published：05 February 2020
- 稿件说明：
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孙明慧, 陈静圆, 肖南, 陈奥博, 王旭珍, 邱介山. 煤基富氮层级多孔碳制备及其催化脱硫性能[J]. 化工学报, 2020, 71(2): 660-668

SUN Minghui, CHEN Jingyuan, XIAO Nan, CHEN Aobo, WANG Xuzhen, QIU Jieshan. Preparation of hierarchical nitrogen-rich porous carbon from coal tar for catalytic desulfurization[J]. CIESC Journal, 2020, 71(2): 660-668
孙明慧, 陈静圆, 肖南, 陈奥博, 王旭珍, 邱介山. 煤基富氮层级多孔碳制备及其催化脱硫性能[J]. 化工学报, 2020, 71(2): 660-668 DOI： 10.11949/0438-1157.20190998.

SUN Minghui, CHEN Jingyuan, XIAO Nan, CHEN Aobo, WANG Xuzhen, QIU Jieshan. Preparation of hierarchical nitrogen-rich porous carbon from coal tar for catalytic desulfurization[J]. CIESC Journal, 2020, 71(2): 660-668 DOI： 10.11949/0438-1157.20190998.

摘要

以煤加工副产物煤焦油中蒽油馏分为碳源、多巴胺为氮源，基于纳米碳酸钙球模板在碳化过程中发生的诱导自活化作用，一步共碳化制得氮掺杂多孔碳（NPCs）材料。通过元素分析、低温氮气吸附-脱附测试、扫描及透射电镜表征，结果表明，NPCs材料的氮元素掺杂量高，且具有发达的微孔-介孔梯级孔道结构。结合室温下催化硫化氢选择性氧化为单质硫的反应性能评价，发现改变模板剂用量、碳/氮源投料比和碳化温度，可调控NPCs材料的氮掺杂量（质量分数6.4%~21.3%）、比表面积、孔道结构发达程度及相应的定向转化硫容，最佳工艺条件下合成样品的饱和硫容高达5.8 g H

S/(g催化剂)。

Abstract

Nitrogen-doped porous carbon (NPCs) were prepared by one-step co-carbonization used the anthracene oil fraction form coal taras the carbon source and dopamine as the nitrogen source

based on the induced self-activation of the nano-calcium carbonate template in the carbonization process. The results from element analyses

cryogenic nitrogen adsorption-desorption test

scanning and transmission electron microscopy characterization show that NPCs have a high level of doping nitrogen and the developed micro-mesoporous hierarchical structure. Combined with the evaluation for catalytic oxidation of hydrogen sulfide to elemental sulfur at room temperature

it is found that the doped-nitrogen amount (6.4%－21.3%

mass fraction)

the specific surface area

the channel texture and the corresponding desulfurization performance of NPCs can be controlled by changing the dosage of template agent

the feeding ratio of carbon/nitrogen source and the carbonization temperature. And the saturated sulfur capacity of NPCs can be up to 5.8 g H

S/(g cat.) when synthesized under the optimal process conditions.

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references

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