Study on synthesis of T-zeolite and its CH<sub>4</sub>/N<sub>2</sub> adsorption and separation performance

LIU Jinfang; JIN Xiaoyu; LI Yuan; XUN Wenjie; SHEN Fangfang; QIAO Xu; WANG Xiaoqing; YANG Jiangfeng

doi:10.12434/j.issn.2097-2547.20240353

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Study on synthesis of T-zeolite and its CH₄/N₂ adsorption and separation performance

更新时间：2025-07-30

- Study on synthesis of T-zeolite and its CH₄/N₂ adsorption and separation performance
- Vol. 50, Issue 7, Pages: 67-71(2025)
- 作者机构：
  
  1.山西焦煤集团有限责任公司炼焦煤清洁利用实验室分公司，山西太原 030027
  2.炼焦煤智慧评价与高效利用山西省重点实验室，山西太原 030027
  3.太原理工大学气体能源高效清洁利用山西省重点实验室，山西太原 030024
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20240353
  CLC： TQ028.1
- Received：27 August 2024，
  
  Revised：10 October 2024，
  
  Published：25 July 2025
- 稿件说明：
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刘晋芳,金晓宇,李媛等.T沸石的合成及其CH₄/N₂吸附分离性能研究[J].低碳化学与化工,2025,50(07):67-71.

LIU Jinfang,JIN Xiaoyu,LI Yuan,et al.Study on synthesis of T-zeolite and its CH₄/N₂ adsorption and separation performance[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(07):67-71.
刘晋芳,金晓宇,李媛等.T沸石的合成及其CH₄/N₂吸附分离性能研究[J].低碳化学与化工,2025,50(07):67-71. DOI： 10.12434/j.issn.2097-2547.20240353.

LIU Jinfang,JIN Xiaoyu,LI Yuan,et al.Study on synthesis of T-zeolite and its CH₄/N₂ adsorption and separation performance[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(07):67-71. DOI： 10.12434/j.issn.2097-2547.20240353.

摘要

低浓度煤层气CH

富集过程需要高性能CH

吸附剂。采用水热法成功合成了T沸石，并利用PXRD、SEM和N

吸/脱附等手段对其进行了表征。测试了T沸石的CH

、N

单组分吸附性能，计算了其理想吸附溶液理论（IAST）选择性和吸附热，并考察了T沸石的CH

吸附分离性能。结果表明，在298 K、0.1 MPa条件下，T沸石（Tz-168）的CH

吸附量为21.4 cm

/g，CH

选择性为5.5，优于大多数分子筛吸附剂。通过CH

混合气穿透实验进一步验证了T沸石具有良好的CH

吸附分离性能，

(CH

)为50:50和20:80时，实际分离时间分别为5 min和7 min，这在低浓度煤层气CH

富集中具有较大的应用潜力。

Abstract

The enrichment of CH

in low-concentration coalbed methane requires high-performance CH

adsorbents. T-zeolite was successfully synthesized using a hydrothermal method and characterized by PXRD

SEM

and N

adsorp

tion/desorption. The CH

and N

single-component adsorption performance of T-zeolite was tested

and its Ideal Adsorbed Solution Theory (IAST) selectivity and adsorption heat were calculated. The CH

separation performance of T-zeolite was also investigated. The results show that at 298 K and 0.1 MPa

the CH

adsorption capacity of T-zeolite (Tz-168) is 21.4 cm

and the CH

selectivity of T-zeolite is 5.5

which is better than most molecular sieve adsorbents. CH

mixture permeation experiments further confirm that T-zeolite exhibits excellent CH

separation performance

with actual separation time of 5 min and 7 min at

(CH

) of 50:50 and 20:80

respectively. This has significant application potential in the enrichment of CH

from low-concentration coalbed methane.

关键词

Keywords

references

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Related Institution

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Study on synthesis of T-zeolite and its CH4/N2 adsorption and separation performance

DOI：10.12434/j.issn.2097-2547.20240353

摘要

Abstract

关键词

Keywords

references

Study on synthesis of T-zeolite and its CH₄/N₂ adsorption and separation performance