Simultaneous removal of NOx, SO2, CO and Hg from flue gas by ozonation. Pilot plant studies

• Autorzy: Głomba M. , Kordylewski W.

Identyfikatory

DOI

10.5277/epe140309

• Języki publikacji: EN

Abstrakty

EN

The results of pilot plant investigations of simultaneous removal of NOx, SO2 and Hg from flue gas with ozone as the oxidizing agent and the spray tower absorber with NaOH solution as the absorbent have been presented. Flue gas was delivered into the pilot plant at the flow rate of 200 m3/h from the coal fired OP-430 boiler. The effectiveness of NOx removal was over 95% when the molar ratio O3/NO reached 2.0. Sulfur dioxide was practically completely washed out from flue gas in the absorber at the liquid-to-gas ratio 7.5 dm3/m3. The effectiveness of Hg removal in the studied system was approximately 80%. It was pointed out that CO concentration in flue gas could considerably increase the ozone consumption. The effect of carbon dioxide in flue gas on the chemistry of absorption due to hydroxides conversion into carbonates and bicarbonates was noticed.

Słowa kluczowe

EN

carbon dioxide; flue gases; ozone; ozonization; pilot plants; sulfur dioxide; gas absorption; NOx removal; So2 removal; CO removal

PL

dwutlenek węgla; tlenki azotu; spaliny; ozon; ozonowanie; instalacje pilotażowe; dwutlenek siarki; absorpcja gazu; usuwanie NOx; usuwanie SO2; usuwanie CO

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2014
• Tom: Vol. 40, nr 3
• Strony: 113--125
• Opis fizyczny: Bibliogr. 27 poz., tab., rys.

Twórcy

autor

Głomba M.

• Institute of Environment Protection Engineering, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław

autor

Kordylewski W.

• Institute of Heat Engineering and Fluid Mechanics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław

Bibliografia

• [1] Directive 2010/75/EU of the European Parliament and the Council, 2010.
• [2] PRONOBIS M., Modernization of power plants boilers, Wydawnictwa Naukowo-Techniczne, Warszawa 2002 (in Polish).
• [3] KROTLA K., WALA T., BRUDZIANA P., Comparison of the expenditure and exploitation costs of the SCR installations depending on the reduction NOx emissions, Proc. 9th Conference on Research and Development in Power Engineering – RDPE, Warsaw, Poland, 8–11 December 2009 (in Polish).
• [4] ELLISON W., Chemical process design alternatives to gain simultaneous removal in scrubbers, Proc.POWER-GEN International, Las Vegas, USA, 9–11 December 2003.
• [5] CHIRONNA R.J., ALTSHULER B., Chemical aspects of NOx scrubbing, Pollut. Eng., 1999, 31 (4), 32.
• [6] FU Y., DIWEKAR U.M., Cost effective environmental control technology for utilities, Adv. Environ. Res., 2004, 8, 173.
• [7] NELO S.K., LESKELA K.M., SOHLO J.J.K., Simultaneous oxidation of nitrogen oxide and sulfur dioxide with ozone and hydrogen peroxide, Chem. Eng. Technol., 1997, 20, 40.
• [8] JAROSZYŃSKA-WOLIŃSKA J., Investigations of the chemical reactions of nitrogen oxides with ozone generated in low-temperature plasma, Instytut Chemii i Technologii Jądrowej, Warsaw 2009 (in Polish).
• [9] MOK Y.S., Absorption-reduction technique assisted by ozone injection and sodium sulfide for NOx removal from exhaust gas, Chem. Eng. J., 2006, 118, 63.
• [10] MOK Y.S., LEE H., Removal of sulfur dioxide and nitrogen oxides by using ozone injection and absorption reduction technique, Fuel Process. Technol., 2006, 87, 591.
• [11] WANG Z., ZHOU J., ZHU Y., WEN Z., LIU J., CEN K., Simultaneous removal of NOx, SO2 and Hg in nitrogen flow in a narrow reactor by ozone injection. Experimental results, Fuel Process. Technol., 2007, 88, 817.
• [12] PURI I.K., The removal of NO by low-temperature O3 oxidation, Combust. Flame, 1995, 102, 512.
• [13] WANG Z., ZHOU J., FAN J., CEN K., Direct numerical simulation of ozone injection technology for NOx control in flue gas, Energ. Fuel, 2006, 20, 2432.
• [14] SKALSKA K., MILLER J.S., LEDAKOWICZ S., Effectiveness of nitric oxide ozonation, Chem. Pap., 2011, 65, 193.
• [15] SKALSKA K., MILLER J.S., LEDAKOWICZ S., Kinetic model of NOx ozonation and its experimental verification, Chem. Eng. Sci., 2011, 66, 3386.
• [16] MODLIŃSKI N., KORDYLEWSKI W., JAKUBIAK M., Numerical simulation of O3 and NO reacting in a tubular flow reactor, Chem. Process Eng., 2013, 34 (3), 361.
• [17] JARVIS J.B., NARESH A.T.D., SUCHAK J., LoTOxTM process flexibility and multi-pollutant control capability, Proc. Combined Power Plant Air Pollution Control Mega Symposium, Washington, USA, 19–22 May 2003.
• [18] GOSTOMCZYK M.A., KRZYŻYŃSKA R., Technology of SO2, NOx and mercury emission control from coal- and waste-fired boilers, Arch. Spal., 2005, 5, 1 (in Polish).
• [19] STAMATE E., JORGENSEN L., JENSEN T.K., CHEN W., KRISTENSEN P.G., TOBIASEN L., SIMONSEN P., MICHELSEN P.K., Pilot Test and Optimisation of Plasma Based DeNOx, PSO PROJECT NO 2006-1-6365, Technical University of Denmark, Denmark, 2009.
• [20] JAKUBIAK M., KORDYLEWSKI W., Pilot-scale studies on NOx removal from flue gas via NO ozonation and absorption into NaOH solution, Chem. Proc. Eng., 2012, 33 (3), 345.
• [21] KORDYLEWSKI W., SAWICKA D., FALKOWSKI T., Laboratory tests on efficiency of carbon dioxide capture from gases in NaOH solutions, J. Ecol. Eng., 2013, 14 (2), 54.
• [22] KORDYLEWSKI W., JAKUBIAK M., HARDY T., Pilot plant studies on NOx removal via NO oxidation and absorption, Arch. Environ. Protection, 2013, 39 (3), 93.
• [23] OMAR K., Evaluation of BOC’s LoTOxTM process for the oxidation of elemental mercury in flue gas from a coal fired boiler, Topical Report, Western Research Institute, Laramie, Wyoming, DOE, USA, 2008.
• [24] BOARDMAN R., SMOOT L.D., Pollutant formation and control, [in:] L.D. Smoot (Ed.), Fundamentals of Coal Combustion, Elsevier, Amsterdam 1993, 433–506. Simultaneous removal of NOx, SO2, CO and Hg from flue gas by ozonation 125
• [25] SANDER R., Compilation of Henry’s Law Constants for Inorganic and Organic Species of Potential Importance in Environmental Chemistry, Air Chemistry Department, Max-Planck Institute of Chemistry, PO Box 3060, 55020 Mainz, Germany, 1999.
• [26] ARIN L.M., WARNECK P., Reaction of ozone with carbon monoxide, J. Phys. Chem., 1972, 76 (11), 1514.
• [27] EBBING D.D., GAMMON S.D., General Chemistry, McGraw-Hill, New York 2001.