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Nie Z, Zhao Q, Zhao Q, Li Y, Yang D, Liu H, Yang S, Li J, Tian S, Li C, Tie C, Huang J, Ning P. Red mud with enhanced dealkalization performance by supercritical water technology for efficient SO 2 capture. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118469. [PMID: 37393878 DOI: 10.1016/j.jenvman.2023.118469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/06/2023] [Accepted: 06/19/2023] [Indexed: 07/04/2023]
Abstract
The total de-alkalization treatment of industrial solid waste red mud (RM) has been a worldwide challenge. Removing the insoluble structural alkali fraction from RM is the key to enhancing the sustainable utilization of RM resources. In this paper, supercritical water (SCW) and leaching agents were used for the first time to de-alkalize the Bayer RM and to remove sulfur dioxide (SO2) from flue gas with the de-alkalized RM slurry. The results showed that the optimum alkali removal and Fe leaching rates of RM-CaO-SW slurry were 97.90 ± 0.88% and 82.70 ± 0.95%, respectively. Results confirmed that the SCW technique accelerated the disruption of (Al-O) and (Si-O) bonds and the structural disintegration of aluminosilicate minerals, facilitating the conversion of insoluble structural alkalis to soluble chemical alkalis. The exchangeable Ca2+ displaced Na+ in the remaining insoluble base, producing soluble sodium salts or alkalis. CaO consumed SiO2, which was tightly bound to Fe2O3 in RM, and released Fe2O3, which promoted Fe leaching. RM-SCW showed the best desulfurization performance, which maintained 88.99 ± 0.0020% at 450 min, followed by RM-CaO-SW (450 min, 60.75 ± 6.00%) and RM (180 min, 88.52% ± 0.00068). The neutralization of alkaline components, the redox of metal oxides, and the liquid-phase catalytic oxidation of Fe contributed to the excellent desulfurization performance of the RM-SCW slurry. A promising approach shown in this study is beneficial to RM waste use, SO2 pollution control, and sustainable growth of the aluminum industry.
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Affiliation(s)
- Zimeng Nie
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Qun Zhao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Qilin Zhao
- Yunnan Environmental Monitoring Center, Kunming, Yunnan Province, 650034, China.
| | - Yingjie Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Dian Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Huaying Liu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Shupu Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China
| | - Jie Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Senlin Tian
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Chen Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Cheng Tie
- Yunnan Environmental Monitoring Center, Kunming, Yunnan Province, 650034, China.
| | - Jianhong Huang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
| | - Ping Ning
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, China.
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Salman AD, Juzsakova T, Rédey Á, Le PC, Nguyen XC, Domokos E, Abdullah TA, Vagvolgyi V, Chang SW, Nguyen DD. Enhancing the Recovery of Rare Earth Elements from Red Mud. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100223] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ali Dawood Salman
- University of Pannonia Research Group for Surfaces and Nanostructures Veszprém Hungary
- Basra University Department of Chemical and Petroleum Refining Engineering College of Oil and Gas Engineering Basra Iraq
| | - Tatjána Juzsakova
- University of Pannonia Research Group for Surfaces and Nanostructures Veszprém Hungary
| | - Ákos Rédey
- University of Pannonia Research Group for Surfaces and Nanostructures Veszprém Hungary
| | - Phuoc-Cuong Le
- The University of Danang University of Science and Technology 550000 Danang Vietnam
| | - X. Cuong Nguyen
- Duy Tan University Laboratory of Energy and Environmental Science Institute of Research and Development 550000 Da Nang Vietnam
- Duy Tan University Faculty of Environmental and Chemical Engineering 550000 Danang Vietnam
| | - Endre Domokos
- University of Pannonia Research Group for Surfaces and Nanostructures Veszprém Hungary
| | - Thamer A. Abdullah
- University of Pannonia Research Group for Surfaces and Nanostructures Veszprém Hungary
| | - Veronika Vagvolgyi
- University of Pannonia Research Group for Surfaces and Nanostructures Veszprém Hungary
| | - S. Woong Chang
- Kyonggi University Department of Environmental Energy Engineering 442-760 Suwon Republic of Korea
| | - D. Duc Nguyen
- Nguyen Tat Thanh University Faculty of Environmental and Food Engineering 300A Nguyen Tat Thanh, District 4 755414 Ho Chi Minh City Vietnam
- Kyonggi University Department of Environmental Energy Engineering 442-760 Suwon Republic of Korea
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Ebrahiminejad M, Karimzadeh R. Influence of phosphorus content on properties and performance of NiW nanocatalyst supported on activated red mud in atmospheric diesel hydrodesulfurization. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121485. [PMID: 31699482 DOI: 10.1016/j.jhazmat.2019.121485] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
The influence of phosphorus promoter addition on structural properties and hydrodesulfurization activity of NiW nanocatalysts supported on activated red mud, called NiW/P-ARM, was studied at atmospheric pressure. Before red mud usage, it was treated by Pratt and Christoverson technique and then NiW/P-ARM nanocatalysts with different phosphorus loadings were prepared by impregnation technique. The prepared samples were characterized by XRF, XRD, FESEM, BET, FTIR and H2-TPR analyses. Base on the obtained results, XRF analysis indicated that activation process remarkably decreased Ca and Na content in the red mud. XRD results indicated the high dispersion of the tungstate, nickel and active phase (NiWO4) species on the surface of activated red mud support. FESEM analysis illustrated that all particles of NiW/P-ARM were less than 100 nm. TPR measurements revealed that phosphorus-promoted nanocatalysts had higher reduction potentials than nanocatalyst without promoter. The catalytic ability of synthesized nanocatalysts was investigated in a fixed bed reactor at atmospheric pressure and 380 °C using Iso diesel and light diesel as the reaction feeds. It was found that NiW/P-ARM with 1.5 wt.% prompter showed higher activity for hydrodesulfurization process and further addition of P promoter decreased the catalytic activity that may be due to the decrease in surface area or agglomeration particles.
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Affiliation(s)
- Mitra Ebrahiminejad
- Chemical Engineering Faculty, Tarbiat Modares University, P.O. Box 14115-111, Tehran, Iran; Cracking and Catalysis Research Center, Tarbiat Modares University, P.O. Box 14115-111, Tehran, Iran
| | - Ramin Karimzadeh
- Chemical Engineering Faculty, Tarbiat Modares University, P.O. Box 14115-111, Tehran, Iran; Cracking and Catalysis Research Center, Tarbiat Modares University, P.O. Box 14115-111, Tehran, Iran.
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Quitian A, Fernández Y, Ancheyta J. Viscosity Reduction of Heavy Oil during Slurry-Phase Hydrocracking. Chem Eng Technol 2018. [DOI: 10.1002/ceat.201800102] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alexander Quitian
- Universidad Nacional Autónoma de México; Facultad de Química; Ciudad Universitaria, Coyoacán 04510 Mexico D.F., C.P. Mexico
| | - Yatzirih Fernández
- Instituto Mexicano del Petróleo; Eje Central Lázaro Cárdenas Norte 152 Col. San Bartolo Atepehuacan 07730 Mexico D.F., C.P. Mexico
| | - Jorge Ancheyta
- Instituto Mexicano del Petróleo; Eje Central Lázaro Cárdenas Norte 152 Col. San Bartolo Atepehuacan 07730 Mexico D.F., C.P. Mexico
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