Abstract
In this paper, novel low-cost oxygen carriers containing Fe2O3 are evaluated for use in chemical looping combustion. Sewage sludge ashes and reference samples were prepared and used in cyclic reduction and oxidation experiments in a thermogravimetric analyzer (TG). A gaseous (3 % H2) fuel and a solid fuel (hard coal) were tested. Three-cycle CLC tests were carried out in the 600–800 °C temperature range and long-term testing was performed at 950 °C. A reactivity study showed that the natural sewage sludge ash sample was stable during the cycling TG tests when hydrogen was used as a fuel at all of the temperatures investigated. Strong temperature effects on the oxygen transport capacity were observed. An one-cycle test at 900 °C showed also that the sewage sludge ash successfully reacted with coal. The oxygen released was fully used for coal combustion, with appreciable reaction rate at temperature of ~750–800 °C, that is significantly lower than that obtained for pure Fe2O3-based oxygen carrier. The oxidation reaction was much faster than the reduction reaction. Moreover, the sewage sludge ash showed a low tendency toward agglomeration in the cyclic test, which was superior to the behavior of synthetic materials. The sewage sludge ash exhibited also high mechanical strength, an attrition index of 1 % and a high-temperature resistance of 1,170 °C in a reducing atmosphere. We conclude that sewage sludge ash can be effectively used as a low-cost, valuable oxygen carrier in practical application in chemical looping combustion technology for power generation.
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References
Richter HJ, Knoche KF. Reversibility of combustion process In: Efficiency and costing second law analysis of process. ACS Symposium Series Washington DC: American Chemical Society 1983;235:71–85.
Ishida M, Jin H. A Novel chemical looping combustor without NOx formation. Ind Eng Chem Res. 1996;35:2469–72.
Adanez J, Abad A, Garcia Labiano F, Gayan P, de Diego LF. Progress in chemical looping combustion and reforming technologies. Prog Energy Combust Sci. 2012;38:215–82.
Zhao H, Cao Y, Orndorff W, Pan W. Study on modification of Cu-based oxygen carrier for chemical looping combustion. J Therm Anal Calorim. 2013;113:1123–8.
Cui Y, Cao Y, Pan W. Preparation of copper-based oxygen carrier supported by titanium dioxide. J Therm Anal Calorim. 2013;114:1089–98.
Kierzkowska AM, Bohn CD, Scott SA, Cleeton JP, Dennis JS, Müller CR. Development of iron oxide carriers for chemical looping combustion using sol–gel. Ind Eng Chem Res. 2010;49:5383–91.
Siriwardane RV, Ksepko E, Tian H, Poston J, Simonyi T, Sciazko M. Interaction of iron copper mixed metal oxide oxygen carriers with simulated synthesis gas derived from steam gasification of coal. Appl Energy. 2013;107:111–23.
Zhao H, Cao Y, Kang Z, Wang Y, Pan W. Thermal characteristics of Cu-based oxygen carriers. J Therm Anal Calorim. 2012;109:1105–9.
Adanez J, Cuadrat A, Abad A, Gayan P, de Diego LF, Garcia Labiano F. Ilmenite activation during consecutive redox cycles in chemical looping combustion. Energy Fuels. 2010;24:1402–13.
Abad A, Cuadrat A, Mendiara T, García Labiano F, Gayán P, de Diego LF, Adánez J. Low cost Fe based oxygen carrier materials for the IG-CLC process with coal 2. Ind Eng Chem Res. 2012;5:16230–41.
Pröll T, Mayer K, Bolhar Nordenkampf J, Kolbitsch P, Mattisson T, Lyngfelt A, Hofbauer H. Natural mineral as oxygen carriers for chemical looping combustion in a dual circulating fluidized bed system. Energy Procedia. 2009;1:27–34.
Cui X, Zhang X, Feng Y, Wang G, Yang M, Gao H, Luo W. Effect of partial substitution of Ca in LaMnO3 on coal catalytic combustion. J Therm Anal Calorim. 2013;112:719–26.
Schwebel GL, Leion H, Krumm W. Comparison of natural ilmenites as oxygen carriers in chemical looping combustion and influence of water gas shift reaction on gas composition. Chem Eng Res Des. 2012;90:1351–60.
Rydén M, Johansson M, Cleverstam E, Lyngfelt A, Mattisson T. Ilmenite with addition of NiO as oxygen carrier for chemical looping combustion. Fuel. 2010;89:3523–33.
Azis M, Jerndal E, Leion H, Mattisson T, Lyngfelt A. On the evaluation of synthetic and natural ilmenite using syngas as fuel in chemical looping combustion (CLC). Chem Eng Res Des. 2010;88:1505–14.
den Hoed P, Luckos A. Oxidation and reduction of iron titanium oxides in chemical looping combustion: a phase chemical description. Oil Gas Sci Technol. 2011;66:249–64.
Cuadrat A, Abad A, Adánez J, de Diego LF, García Labiano F, Gayán P. Performance of ilmenite as oxygen carrier for chemical looping combustion using coal as fuel. In: Proc 1st International Conference on Chemical Looping Lyon France March 17-19 2010.
Mendiara T, Pérez R, Abad A, de Diego LF, García Labiano F, Gayán P, Adánez J. Low cost Fe based oxygen carrier materials for the iG-CLC process with coal. Ind Eng Chem Res. 2012;51:16216–29.
Leion H, Jerndal E, Steenari BM, Hermansson S, Israelsson M, Jansson E, Johnsson M, Thunberg R, Vadenbo A, Mattisson T, Lyngfelt A. Solid fuels in chemical looping combustion using oxide scale and unprocessed iron ore as oxygen carriers. Fuel. 2009;88:1945–54.
Mendiara T, Abad A, de Diego LF, García Labiano F, Gayán P, Adanez J. Use of an Fe based residue from alumina production as an oxygen carrier in chemical looping combustion. Energy Fuels. 2012;26:1420–31.
Jerndal E, Leion H, Axelsson L, Ekvall T, Hedberg M, Johansson K, Källén M, Svensson R, Mattisson T, Lyngfelt A. Using low cost iron based materials as oxygen carriers for chemical looping combustion. Oil Gas Sci Technol. 2011;66:235–48.
Xiao R, Song Q, Zhang S, Zheng W, Yang Y. Pressurized chemical looping combustion of chinese bituminous coal: cyclic performance and characterization of iron ore based oxygen carrier. Energy Fuels. 2010;24:1449–63.
Xiao R, Song Q, Song M, Lu Z, Zhang S, Shen L. Pressurized chemical looping combustion of coal with an iron ore based oxygen carrier. Combust Flame. 2010;157:1140–53.
Leion H, Mattisson T, Lyngfelt A. Use of ores and industrial products as oxygen carriers in chemical looping combustion. Energy Fuels. 2009;23:2307–15.
Rydén M, Cleverstam E, Lyngfelt A, Mattisson T. Waste products from the steel industry with NiO as additive as oxygen carrier for chemical looping combustion. Int J Greenhouse Gas Control. 2009;3:693–703.
Fossdal A, Bakken E, Oeye BA, Schoening C, Kaus I, Mokkelbost T, Larring Y. Study of inexpensive oxygen carriers for chemical looping combustion. Int J Greenhouse Gas Control. 2011;5:483–8.
Leion H, Mattisson T, Lyngfelt A. Chemical looping of solid fuels in a laboratory fluidized bed reactor. Oil Gas Sci Technol. 2011;66:201–8.
Zhang S, Saha C, Yang Y, Bhattacharya S, Xiao R. Use of Fe2O3 Containing industrial wastes as the oxygen carrier for chemical looping combustion of coal: effects of pressure and cycles. Energy Fuels. 2011;25:4357–66.
Stelmach S, Wasielewski R. Co-combustion of dried sewage sludge and coal in a pulverized coal boiler. J Mater Cycles Waste Manag. 2008;10:110–5.
Oliver MJB, Carsky M, O’Connor H. Production of a fertilizer product. US Patent No 20030121302, 2001.
Alamagro G. Sewage Sludge as fire suppressant. US Patent No 20020130294, 2001.
Webster WC, Hilton RG. Disposal method and use of sewage sludge. US Patent No 4028130, 1977.
Mueller D. Sewage Sludge Fuel Briquette US Patent No 4615711, 1985.
Amand LE, Leckenr B, Eskilsson D, Tullin C. Deposit on heat transfer tubes co-combustion of biofuels and sewage sludge. Fuel. 2006;85:1313–22.
Aho M, Yrjas P, Taipale R, Hupa M, Silvennoinen J. Reduction of superheater corrosion by co-firing risky biomass with sewage sludge. Fuel. 2010;89:2376–86.
Ninomiya Y, Zhang L, Sakano T, Kanaoka C. Masui M Transformation of mineral and emission of particulate matters during co-combustion of coal with sewage sludge. Fuel. 2004;83:751–64.
Siriwardane R, Tian H, Miller D, Richards G, Simonyi T, Poston J. Evaluation of reaction mechanism of coal metal oxide interactions in chemical looping combustion. Combust Flame. 2010;157:2198–208.
Siriwardane R, Tian H, Richards G, Simonyi T, Poston J. Chemical looping combustion of coal with metal oxide oxygen carriers. Energy Fuels. 2009;23:3885–92.
Acknowledgements
The work was partially founded by Polish Ministry of Higher Educational and Science, Contract Number 5/PMPP/U/1–09.10/E–134/2011. The author thanks to J. Figa for technical assistance during sample preparation and Dr. G. Łabojko for TG measurements assistance.
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Ksepko, E. Sewage sludge ash as an alternative low-cost oxygen carrier for chemical looping combustion. J Therm Anal Calorim 116, 1395–1407 (2014). https://doi.org/10.1007/s10973-013-3564-7
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DOI: https://doi.org/10.1007/s10973-013-3564-7