Hydrogen Purification Performance of Pressure Swing Adsorption in Coal-Derived Activated Carbon/Zeolite 13X Layered Bed

Hydrogen Purification Performance of Pressure Swing Adsorption in Coal-Derived Activated Carbon/Zeolite 13X Layered Bed

The large-scale production of high-purity hydrogen via pressure swing adsorption (PSA) remains a prominent research focus. This study develops a multi-component heat and mass transfer model for a lean hydrogen mixture (N<sub>2</sub>/CO<sub>2</sub>/H<sub>2</sub>/CO...

Full description

Saved in:
Bibliographic Details
Main Authors: Tianqi Yang, Ziyu Yang, Chenglong Li, Liang Tong, Ben Chen, Xuefang Li, Yupeng Yuan, Chengqing Yuan, Jinsheng Xiao
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Applied Sciences
Subjects:
pressure swing adsorption
hydrogen purification
breakthrough curve
lean hydrogen mixture
layered bed
Online Access:https://www.mdpi.com/2076-3417/15/10/5505
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The large-scale production of high-purity hydrogen via pressure swing adsorption (PSA) remains a prominent research focus. This study develops a multi-component heat and mass transfer model for a lean hydrogen mixture (N<sub>2</sub>/CO<sub>2</sub>/H<sub>2</sub>/CO = 44.6/35.4/19.9/0.1 mol%) on a coal-derived activated carbon (AC)/zeolite 13X layered bed to investigate its breakthrough curve and PSA purification performance. The model is implemented on the Aspen Adsorption platform and validated with published data. Parametric analysis of the breakthrough curve reveals that a high pressure and a low feed flow rate can delay the breakthrough of impurity gases. The simulated variations in pressure, purity, and recovery during the PSA cycle align with the published results. Studies on PSA cycle parameters show that, in general, a high pressure, a low feed flow rate, a short adsorption time, and a high P/F ratio improve purity but reduce recovery. The purity and recovery of the layered bed outperform those of the single-layer bed. Specifically, gradually modifying the AC/zeolite 13X length ratio from 10:0 to 5:5 enhances hydrogen purity, while adjusting it from 10:0 to 3:7 enhances hydrogen recovery. At AC/zeolite 13X = 5:5, the highest purity was 97.38%, while at AC/zeolite 13X = 3:7, the highest recovery was 49.13%.
ISSN:2076-3417

Similar Items