Effect of Fe promoter on performance of Ni/NaY adsorbent for removing dichloromethane from hydrogen

ZHOU Guanglin; LI Jicong; YAN Chaoying; XUAN Shouguo; JIANG Weili; CUI Yuxin; DANG Jie; HE Haoyi

doi:10.12434/j.issn.2097-2547.20250114

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Effect of Fe promoter on performance of Ni/NaY adsorbent for removing dichloromethane from hydrogen

更新时间：2026-02-13

- Effect of Fe promoter on performance of Ni/NaY adsorbent for removing dichloromethane from hydrogen
- Vol. 51, Issue 2, Pages: 99-106(2026)
- 作者机构：
  
  中国石油大学（北京）新能源与材料学院，北京 102249
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250114
  CLC： TQ424.2
- Received：17 March 2025，
  
  Revised：2025-04-26，
  
  Published：25 February 2026
- 稿件说明：
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周广林,李继聪,闫超英等.助剂Fe对Ni/NaY吸附剂脱除氢气中二氯甲烷性能的影响[J].低碳化学与化工,2026,51(2):99-106.

ZHOU Guanglin,LI Jicong,YAN Chaoying,et al.Effect of Fe promoter on performance of Ni/NaY adsorbent for removing dichloromethane from hydrogen[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(2):99-106.
周广林,李继聪,闫超英等.助剂Fe对Ni/NaY吸附剂脱除氢气中二氯甲烷性能的影响[J].低碳化学与化工,2026,51(2):99-106. DOI： 10.12434/j.issn.2097-2547.20250114.

ZHOU Guanglin,LI Jicong,YAN Chaoying,et al.Effect of Fe promoter on performance of Ni/NaY adsorbent for removing dichloromethane from hydrogen[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(2):99-106. DOI： 10.12434/j.issn.2097-2547.20250114.

摘要

氢气中氯化物杂质会对氢燃料电池造成不可逆损害。为提高Ni/NaY吸附剂在常温下对氢气中二氯甲烷的脱除性能，采用等体积浸渍法制备了系列不同助剂Fe负载量（质量分数，下同）的Fe-Ni/NaY吸附剂。通过固定床反应器考察了Fe-Ni/NaY吸附剂对氢气中二氯甲烷的吸附性能，并利用XRD、FT-IR和NH

-TPD等手段对吸附剂进行了表征。结果表明，助剂Fe的引入增大了Fe-Ni/NaY吸附剂的比表面积和微孔比表面积，增大了NaY分子筛弱酸位点数量。随着Fe负载量增大，弱酸位点数量显著增大，从而提高了吸附剂在常温下对氢气中二氯甲烷的吸附容量。Fe负载量为0.15%时，在温度为25 ℃、压力为0.1 MPa和氢气流量为6000 m

L/h的条件下，Fe-Ni/NaY吸附剂的吸附氯容可达5.36%。

Abstract

Chloride impurities in hydrogen can cause irreversible damage to hydrogen fuel cells. To improve the performance of Ni/NaY adsorbents for removing dichloromethane from hydrogen at room temperature

a series of Fe-Ni/NaY adsorbents with different Fe loadings (mass fraction

the same below) were prepared by equal-volume impregnation method. The adsorption performance of the Fe-Ni/NaY adsorbents for dichloromethane in hydrogen was investigated using a fixed-bed reactor

and the adsorbents were characterized by XRD

FT-IR and NH

-TPD. The results show that the introduction of Fe promoter increases the specific surface area and micropore surface area of the Fe-Ni/NaY adsorbent

and increases the number of weak acid sites of the NaY molecular sieve. As the Fe loading increases

the number of weak acid sites increases significantly

thereby enhancing the adsorption capacity of the adsorbent for removing dichloromethane in hydrogen at room temperature. When the Fe loading is 0.15%

under the conditions of 25 ℃

0.1 MPa and a hydrogen flow rate of 6000 mL/h

the chlorine adsorption capacity of the Fe-Ni/NaY adsorbent reaches 5.36%.

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references

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