Cited by Reaction characterization and mechanism analysis of biphasic iron sulfides catalyzed CO reduction of SO2 to sulfur in oxygenated smelting flue gas

Promotion mechanism of SO2 on the catalytic oxidation of NO by H2O2 DOI

Zhengyang Gao, Yixiao Sun, Zhiwei Miao

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115439 - 115439

Published: Jan. 1, 2025

Language: Английский

Citations

Catalytic reduction of SO₂ by Gd@CeO_x catalysts: stability enhancement and structural modulation DOI

Mutao Xu,

Xinpei Cheng,

Liguo Chen

et al.

Environmental Science Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The production of sulfur by catalytically reducing SO 2 with CO presents a promising approach for utilizing oxides found in flue gases.

Language: Английский

Citations

SO2 Removal from Flue Gas by Char-Supported Fe-Zn-Cu Sorbent DOI

Yueying Li,

Chuan Na,

Jinxiao Dou

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(2), P. 394 - 394

Published: Jan. 16, 2025

In this study, the mechanisms of SO2 adsorption on lignite char and char-supported Fe-Zn-Cu sorbent (FZC sorbent) were investigated. The FZC was prepared by impregnation metal components raw coal followed steam gasification. Flue gas desulfurization experiments carried out a fixed-bed reactor at 100-300 °C using simulated flue containing SO2/O2/H2O balanced N2. composition monitored an online analyzer. solid samples before after analyzed X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, Thermogravimetric Analysis-Mass Spectroscopy (TG-MS), Brunauer-Emmett-Teller (BET) surface area analysis. experimental results showed that both can effectively adsorb under present conditions. presence O2 H2O in promoted sorbent. capacity increased with increase temperature up to 250 °C. When further 300 °C, sorbents decreased rapidly. Under optimum conditions space velocity 1500 h-1, 5% (vol) 10% gas, exhibited longest breakthrough time 280 min about 2200 mg (SO2) per gram

Language: Английский

Citations

Catalytic Reduction of SO2 with CO over LaCoO3 Perovskites Catalysts: Effect of Fe Doping and Pre-Sulfurization DOI

Yao Liang, Fanli Meng,

Shuangde Li

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 291 - 291

Published: March 19, 2025

SO2 emissions are a major source of air pollution, and the catalytic reduction to elemental sulfur by CO represents promising solution. This study investigates effects Fe doping pre-sulfurization on performance LaCoO₃ perovskite catalysts. A series Fe-doped LaCoO3 perovskites were synthesized via sol–gel method evaluated for CO. The results showed that LaCo0.8Fe0.2O3 exhibited highest performance, achieving 84.0% conversion at 500 °C. oxygen-free sulfurization (OFS) treatment compared with oxygen-assisted (OAS) significantly enhanced activity, reaching 95.9% from 80.0% 450 °C lower byproduct generation. Characterization analyses demonstrated OFS facilitated formation active species oxygen vacancies catalyst surface while also enhancing adsorption capacity reactant gases. These factors identified as key contributors improved driven combination redox carbonyl sulfide (COS) intermediate mechanism. findings suggest is an effective strategy improve CO, offering more environmentally friendly solution emission control through resource utilization.

Language: Английский

Citations

Reaction characterization and mechanism analysis of biphasic iron sulfides catalyzed CO reduction of SO2 to sulfur in oxygenated smelting flue gas DOI

Yiran Tian,

Sihan Liu,

Xia Xiao

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116496 - 116496

Published: April 1, 2025

Language: Английский

Citations