Enhanced SO2 reduction to sulfur over mesoporous MoS2-Al2O3 catalyst

Yiqian Yang; Erqiang Wang; Shuguang Xiang; Chunshan Li

doi:10.1016/j.cjche.2025.05.027

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Enhanced SO₂ reduction to sulfur over mesoporous MoS₂-Al₂O₃ catalyst

Updated：2026-02-12

- Enhanced SO₂ reduction to sulfur over mesoporous MoS₂-Al₂O₃ catalyst
- Chinese Journal of Chemical Engineering Vol. 87, Issue 11, (2025)
- Affiliations：
  
  1. Institute of Process Systems Engineering, College of Chemical Engineering, Qingdao University of Science and Technology,Qingdao,China,266042
  2. State Key Laboratory of Mesoscience and Engineering, CAS Key Laboratory of Green Process and Engineering, Beijing Key Laboratory of Solid-State Battery and Energy Storage Process, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
  3. School of Chemical Science, University of Chinese Academy of Sciences,Beijing,China,100049
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2025.05.027
  CLC：
- Published：2025
- Accepted：
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reduction to sulfur over mesoporous MoS
DOI：

reduction to sulfur over mesoporous MoS DOI： 10.1016/j.cjche.2025.05.027.

摘要

Abstract

Recovery of sulfur from efficient reduction of effluent SO

is of great significance considering the sulfuric resource utilization and environmental protection. Herein

a kind of mesoporous MoS

-Al

catalyst with high specific surface area and porous structure was developed by a modified one-pot evaporation induced self-assembly (EISA) method

using Pluronic P123 (

= 5800) as template reagent and anhydrous ethanol as solvent. The effect of Mo source

acidic environment and amount of citric acid additive on the physicochemical properties and consequential catalytic performance was systematically investigated by XRD

BET

ICP-OES

TEM

-TPR and XPS. The specific surface area and sulfurization of catalyst could be remarkably enhanced with the increasing amount of citric acid additive. While the degree of sulfidation is closely related to the catalytic activity. As a result

the 10%MoS

-Al

-AM catalyst with mesoporous structure showed excellent catalytic performance on the SO

reduction to sulfur

with 98.5% SO

conversion and 95.3% sulfur selectivity at 350 °C and 3000 h

-1

. It should be helpful for the design of effective catalysts used in SO

recovery.

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