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2018 | 25 | Special Issue S2 |

Tytuł artykułu

Simulation and experimental study of SCR injection system

Autorzy

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
According to actual engineering test, we design a linear controlled spray ammonia grille, and apply it to the SCR injection system of ship tail gas treatment. In this paper, the geometric model of ammonia injection grid was built in the flue of diesel engine, and the effects of spray atomization, ammonia uniformity and urea droplet distribution on spray atomization were simulated. Then the test bench was set up to observe the injection status of the ammonia injection grille. The NOx content of the outlet was measured by the original data of the flue gas, and the experimental data were processed. We calculate the denitrification rate by taking the average value to verify the correctness of the spray ammonia grid scheme

Słowa kluczowe

Wydawca

-

Rocznik

Tom

25

Opis fizyczny

p.49-55,fig.,ref.

Twórcy

autor
  • College of Energy and Power, Jiangsu University of Science and Technology, 23-102 Mengxi Road 6, Jingkou, Zhenjiang City 212003, China
autor
  • College of Energy and Power, Jiangsu University of Science and Technology, 23-102 Mengxi Road 6, Jingkou, Zhenjiang City 212003, China
autor
  • College of Energy and Power, Jiangsu University of Science and Technology, 23-102 Mengxi Road 6, Jingkou, Zhenjiang City 212003, China

Bibliografia

  • 1. Baik J H, Yim S D, Nam I S, et al., Control of NOx emissions from diesel engine by selective catalytic reduction (SCR) with urea [J]. Topics in Catalysis, 2004, 30–31(1–4): 37–41.
  • 2. Lei Z, Wen C, Chen B., Optimization of internals for Selective Catalytic Reduction (SCR) for NO removal [J]. Environmental Science & Technology, 2011, 45(8): 3437–3444.
  • 3. Chen, Ming, and S. Williams. Modelling and Optimization of SCR-Exhaust Aftertreatment Systems. SAE 2005 World Congress & Exhibition, 2005.
  • 4. Weltens, Herman, et al., Optimisation of Catalytic Converter Gas Flow Distribution by CFD Prediction. International Congress & Exposition, 1993.
  • 5. Ho Jeong Chae, 500Tac Choo, Hoon Choe, et al., Direct use of Knetic parameters for modeling and simulation of a selective catalytic reduction Process [J] Ind. Eng. Chem. Res. 2000 39(5): 1159–1170.
  • 6. Tronconi E, Beretta A, Elmi A S, et al., A complete model of scr monolith reactors for the analysis of interacting NOx, reduction and SO2 , oxidation reactions [J]. Chemical Engineering Science, 1994, 49(24): 4277–4287.
  • 7. Upadhyay D, Nieuwstadt M V. Model Based Analysis and Control Design of a Urea-SCR deNOx Aftertreatment System [J]. Journal of Dynamic Systems Measurement & Control, 2006, 128(3): 737–741.
  • 8. Bhattacharjee S, Haworth D C, Moores R. CFD modeling of processes upstream of the catalyst for urea SCR NOx reduction systems in heavy-duty diesel applications [J]. Sae Technical Papers, 2011.
  • 9. Adams B, Cremer M, Valentine J, et al., Use of CFD Modeling for Design of NOx Reduction Systems in Utility Boilers [C]. International Joint Power Generation Conference. 2002: 695–702.
  • 10. Naqvi Mughis Meyer Chris. Gas-Gas Mixing as Applied to SCR’s [C].NETL conference Pittsburgh Pennsylvania 2003: 1–30.
  • 11. Enrico Tronconi, Andrea Cavanna, Carlo OrseIligo, Pio Forzani, Transient Kinetics of S02 Oxidation Over SCR-DeNOx Monolith Cataysts. Industrial & Engineering Chemistry Research, 1999, 38(7): 2593–2598.
  • 12. Tao Qiu,Xuchu Li,Hong Liang,Xinghua Liu,Yan Lei. A method for estimating the temperature downstream of the SCR (selective catalytic reduction) catalyst in diesel engines [J]. Energy,2014,68.
  • 13. Ossi Tapani Kaario,Ville Vuorinen,Lei Zhu,Martti Larmi, Ronghou Liu. Mixing and evaporation analysis of a high-pressure SCR system using a hybrid LES-RANS approach [J]. Energy, 2016.
  • 14. Amsden A A, Orourke P J, Butler T D. KIVA-2: A computer program for chemically reactive flows with sprays [J]. Nasa Sti/recon Technical Report N, 1989, 89.
  • 15. Yim S D, Kim S J, And J H B, et al., Decomposition of Urea into NH3 for the SCR Process [J]. Industrial & Engineering Chemistry Research, 2004, 43(16): 4856–4863.
  • 16. Weili Zhang. Study on the urea storage and injection unit of the ship SCR system. Dalian Maritime University. 2012: 1–62.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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