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Xu Y, Wang P, Pu Y, Jiang L, Yang L, Jiang W, Yao L. MnCe/GAC-CNTs catalyst with high activity, SO2 and H2O tolerance for low-temperature NH3-SCR. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Zhao J, Wei Q, Bi D, Liu L, Wang S, Ren X. A brand new two-phase wet oxidation absorption system for the simultaneous removal of SO 2 and NO X from simulated marine exhaust gas. CHEMOSPHERE 2022; 307:135830. [PMID: 35944677 DOI: 10.1016/j.chemosphere.2022.135830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
Marine engine exhaust emissions are increasingly harmful to the natural environment and human health and must be controlled. A self-synthesized amide (BAD, C12H25NO) in the laboratory shows a strong absorption capacity of nitric acid and nitrous acid, which may solve the problem that only using chlorine-based oxidant as an absorbent cannot completely absorb or retain NO2 produced by NO oxidation in previous studies. Based on Multiwfn and VMD (Visual Molecular Dynamics) program calculation, the formation mechanism of hydrogen bonds between BAD with nitric acid and nitrous acid was revealed by electrostatic potential (ESP) analysis and further confirmed by FT-IR (Fourier transform infrared spectroscopy) spectra research. Subsequently, simultaneous removal of SO2 and NOX from simulated flue gas was carried out by using NaClO/BAD as a two-phase composite absorbent, and the maximum removal efficiencies of SO2 and NOX were 98.9% and 86.6%, respectively. The recycling experiments and the engineering experiments showing that NaClO/BAD can solve the problem of absorption of NO2, and it can be a promising composite absorbent in wet desulfurization and denitrification of marine engine exhaust gas in practical applications.
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Affiliation(s)
- Junxiong Zhao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, Shandong, China; Shandong Institute of Shipbuilding Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, 264209, Shandong, China
| | - Qifeng Wei
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, Shandong, China; Shandong Institute of Shipbuilding Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, 264209, Shandong, China
| | - Dongkui Bi
- Weihai Survey Station, China Classification Society, Weihai, 264209, Shandong, China
| | - Lijuan Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, Shandong, China; Shandong Institute of Shipbuilding Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, 264209, Shandong, China
| | - Shanshan Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, Shandong, China; Shandong Institute of Shipbuilding Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, 264209, Shandong, China.
| | - Xiulian Ren
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, China; School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, 264209, Shandong, China; Shandong Institute of Shipbuilding Technology, Institute of Shipping Oil Residue and Oily Sewage Clean Technology, Weihai, 264209, Shandong, China.
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Jin Q, Lu Y, Ji W, Yang B, Xu M, Xue Z, Dai Y, Xu H. Selective catalytic reduction of NO over W–Zr-O x/TiO 2: performance study of hierarchical pore structure. RSC Adv 2021; 11:33361-33371. [PMID: 35497562 PMCID: PMC9042316 DOI: 10.1039/d1ra05801k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/29/2021] [Indexed: 12/17/2022] Open
Abstract
A series of W–Zr-Ox/TiO2 catalysts with hierarchical pore structure were prepared and used for selective catalytic reduction of NO by NH3.
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Affiliation(s)
- Qijie Jin
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, PR China
| | - Yao Lu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, PR China
| | - Wenyu Ji
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, PR China
| | - Bo Yang
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, PR China
| | - Mutao Xu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, PR China
| | - Zhiwei Xue
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Yi Dai
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, PR China
| | - Haitao Xu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 210009, PR China
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