Abstract
Ignition delay times of multi-component biomass synthesis gas (bio-syngas) diluted in argon were measured in a shock tube at elevated pressure (5, 10 and 15 bar, 1 bar = 105 Pa), wide temperature ranges (1,100–1,700 K) and various equivalence ratios (0.5, 1.0, 2.0). Additionally, the effects of the variations of main constituents (H2:CO = 0.125–8) on ignition delays were investigated. The experimental results indicated that the ignition delay decreases as the pressure increases above certain temperature (around 1,200 K) and vice versa. The ignition delays were also found to rise as CO concentration increases, which is in good agreement with the literature. In addition, the ignition delays of bio-syngas were found increasing as the equivalence ratio rises. This behavior was primarily discussed in present work. Experimental results were also compared with numerical predictions of multiple chemical kinetic mechanisms and Li’s mechanism was found having the best accuracy. The logarithmic ignition delays were found nonlinearly decrease with the H2 concentration under various conditions, and the effects of temperature, equivalence ratio and H2 concentration on the ignition delays are all remarkable. However, the effect of pressure is relatively smaller under current conditions. Sensitivity analysis and reaction pathway analysis of methane showed that R1 (H + O2 = O + OH) is the most sensitive reaction promoting ignition and R13 (H + O2 (+M) = HO2 (+M)), R53 (CH3 + H (+M) = CH4 (+M)), R54 (CH4 + H = CH3 + H2) as well as R56 (CH4 + OH = CH3 + H2O) are key reactions prohibiting ignition under current experimental conditions. Among them, R53 (CH3 + H (+M) = CH4 (+M)), R54 (CH4 + H = CH3 + H2) have the largest positive sensitivities and the high contribution rate in rich mixture. The rate of production (ROP) of OH of R1 showed that OH ROP of R1 decreases sharply as the mixture turns rich. Therefore, the ignition delays become longer as the equivalence ratio increases.
摘要
利用反射激波实验研究了多组分生物质合成气在高温(1,100-1,700 K)、高压(5 bar、10 bar、15 bar)以及不同当量比(0.5、1、2)下的着火延时,并研究了主要组分变化(H2:CO = 0.125~8)对着火延时的影响。实验结果还与多个生物质合成气的动力学机理模拟结果进行了比较,发现Li等人的机理模拟结果与实验值较为吻合。另外对实验结果进行分析表明,燃料的对数着火延时随氢气浓度的变化是非线性的,而且在当前实验条件下,压力对着火延时的影响相比其他参数要更小。最后,本文还从化学动力学的角度对生物质合成气的着火过程进行了敏感性分析和反应路径分析。
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References
Lieuwen T, Vigor Y, Richard Y (2009) Synthesis gas combustion: fundamentals and applications. CRC Press, New York
Puigjaner L (2011) Syngas from waste. Springer, London
Wender I (1996) Reactions of synthesis gas. Fuel Process Technol 48:189–297
Dong H, **ong G, Shao Z et al (2000) Partial oxidation of methane to syngas in a mixed-conducting oxygen permeable membrane reactor. Chin Sci Bull 45:224–226
Cao GL, Zhang XY, Wang YQ et al (2008) Estimation of emissions from field burning of crop straw in China. Chin Sci Bull 53:784–790
Bridgwater AV (1995) The technical and economic feasibility of biomass gasification for power generation. Fuel 74:631–653
Narvaez I, Orio A, Aznar MP et al (1996) Biomass gasification with air in an atmospheric bubbling fluidized bed. Effect of six operational variables on the quality of the produced raw gas. Ind Eng Chem Res 35:2110–2120
Stahl K, Neergaard M (1998) IGCC power plant for biomass utilization, Varnamo. Sweden. Biomass Bioenergy 15:205–211
Martinez JD, Mahkamov K, Andrade RV et al (2012) Syngas production in downdraft biomass gasifiers and its application using internal combustion engines. Renew Energy 38:1–9
Goransson K, Soderlind U, He J et al (2011) Review of syngas production via biomass DFBGs. Renew Sust Energ Rev 15:482–492
Digman B, Joo HS, Kim DS (2009) Recent progress in gasification/pyrolysis technologies for biomass conversion to energy. Environ Prog Sust Energy 28:47–51
Chacartegui R, Sanchez D, Escalona MD et al (2012) SPHERA project: assessing the use of syngas fuels in gas turbines and combined cycles from a global perspective. Fuel Process Technol 103:134–145
Richards GA, McMillian MM, Gemmen RS et al (2001) Issues for low-emission, fuel-flexible power systems. Prog Energy Combust Sci 27:141–169
Mittal G, Sung CJ, Yetter RA (2006) Autoignition of H2/CO at elevated pressures in a rapid compression machine. Int J Chem Kinet 38:516–529
Gersen S, Darmeveil H, Levinsky H (2012) The effects of CO addition on the autoignition of H2, CH4 and CH4/H2 fuels at high pressure in an RCM. Combust Flame 159:3472–3475
Walton SM, He X, Zigler BT et al (2007) An experimental investigation of the ignition properties of hydrogen and carbon monoxide mixtures for syngas turbine applications. P Combust Inst 31:3147–3154
Mansfield AB, Wooldridge MS (2015) The effect of impurities on syngas combustion. Combust Flame 162:2286–2295
Thi LD, Hoang VN, Huang ZH (2013) To study on ignition characteristics of syngas mixtures by shock tube. 2013-01-0118. SAE International, Warrendate, PA
Sivaramakrishnan R, Comandini A, Tranter RS et al (2007) Combustion of CO/H2 mixtures at elevated pressures. P Combust Inst 31:429–437
Petersen EL, Kalitan DM, Barrett AB et al (2007) New syngas/air ignition data at lower temperature and elevated pressure and comparison to current kinetics models. Combust Flame 149:244–247
Peschke WT, Spadaccini LJ (1985) Determination of autoignition and flame speed characteristics of coal gases having medium heating values, report no. EPRI AP-4291. Electric Power Research Institute
Mathieu O, Kopp MM, Petersen EL (2013) Shock-tube study of the ignition of multi-component syngas mixtures with and without ammonia impurities. P Combust Inst 34:3211–3218
Mathieu O, Hargis J, Camou A et al (2015) Ignition delay time measurements behind reflected shock-waves for a representative coal-derived syngas with and without NH3 and H2S impurities. P Combust Inst 35:3143–3150
Wang J, Zhang M, Huang Z et al (2013) Measurement of the instantaneous flame front structure of syngas turbulent premixed flames at high pressure. Combust Flame 160:2434–2441
Prathap C, Ray A, Ravi MR (2012) Effects of dilution with carbon dioxide on the laminar burning velocity and flame stability of H2-CO mixtures at atmospheric condition. Combust Flame 159:482–492
Liu F, Guo H, Smallwood GJ (2003) The chemical effect of CO2 replacement of N2 in air on the burning velocity of CH4 and H2 premixed flames. Combust Flame 133:495–497
Bouvet N, Chauveau C, Gokalp I et al (2011) Experimental studies of the fundamental flame speeds of syngas (H2/CO)/air mixtures. P Combust Inst 33:913–920
Natarajan J, Lieuwen T, Seitzman J (2007) Laminar flame speeds of H2/CO mixtures: effect of CO2 dilution, preheat temperature, and pressure. Combust Flame 151:104–119
Dong C, Zhou Q, Zhao Q et al (2009) Experimental study on the laminar flame speed of hydrogen/carbon monoxide/air mixtures. Fuel 88:1858–1863
Goswami M, Bastiaans RJM, Konnov AA et al (2014) Laminar burning velocity of lean H2-CO mixtures at elevated pressure using the heat flux method. Int J Hydrogen Energy 39:1485–1498
Krejci MC, Mathieu O, Vissotski AJ et al (2013) Laminar flame speed and ignition delay time data for the kinetic modeling of hydrogen and syngas fuel blends. J Eng Gas Turb Power 135:021503
**ao H, Mao Z, An W et al (2014) Experimental and LES investigation of flame propagation in a hydrogen/air mixture in a combustion vessel. Chin Sci Bull 59:2496–2504
Tinaut FV, Melgar A, Giménez B et al (2010) Characterization of the combustion of biomass producer gas in a constant volume combustion bomb. Fuel 89:724–731
Davis SG, Joshi AV, Wang H et al (2005) An optimized kinetic model of H2/CO combustion. P Combust Inst 30:1283–1292
Li J, Zhao Z, Kazakov A et al (2007) A comprehensive kinetic mechanism for CO, CH2O, and CH3OH combustion. Int J Chem Kinet 39:109–136
Saxena P, Williams FA (2006) Testing a small detailed chemical-kinetic mechanism for the combustion of hydrogen and carbon monoxide. Combust Flame 145:316–323
Sun H, Yang SI, Jomaas G et al (2007) High-pressure laminar flame speeds and kinetic modeling of carbon monoxide/hydrogen combustion. P Combust Inst 31:439–446
Wang H, You X, Joshi AV et al (2011) USC Mech version II. high-temperature combustion reaction model of H2/CO/C1-C4 compounds. University of Southern California, Los Angeles, CA. Accessed Jan 2007, p 4
Dryer FL, Chaos M (2008) Ignition of syngas/air and hydrogen/air mixtures at low temperatures and high pressures: experimental data interpretation and kinetic modeling implications. Combust Flame 152:293–299
Boivin P, Jiménez C, Sánchez AL et al (2011) A four-step reduced mechanism for syngas combustion. Combust Flame 158:1059–1063
Kéromnès A, Metcalfe WK, Heufer KA et al (2013) An experimental and detailed chemical kinetic modeling study of hydrogen and syngas mixture oxidation at elevated pressures. Combust Flame 160:995–1011
Tsiakmakis S, Mertzis D, Dimaratos A et al (2014) Experimental study of combustion in a spark ignition engine operating with producer gas from various biomass feedstocks. Fuel 122:126–139
Arroyo J, Moreno F, Munoz M et al (2014) Combustion behavior of a spark ignition engine fueled with synthetic gases derived from biogas. Fuel 117:50–58
Papagiannakis RG, Zannis TC (2013) Thermodynamic analysis of combustion and pollutants formation in a wood-gas spark-ignited heavy-duty engine. Int J Hydrogen Energy 38:12446–12464
Chen L, Shiga S, Araki M (2012) Combustion characteristics of an SI engine fueled with H2-CO blended fuel and diluted by CO2. Int J Hydrogen Energy 37:14632–14639
Geng Z, Xu LL, Wang J et al (2014) Shock tube measurements and modeling study on the ignition delay times of n-butanol/dimethyl ether mixtures. Energy Fuels 28:4206–4215
Xu LL, Ouyang L, Geng Z et al (2014) Experimental and kinetic study on ignition delay times of liquified petroleum gas/dimethyl ether blends in a shock tube. Energy Fuels 28:7168–7177
Metcalfe WK, Burke SM, Ahmed SS et al (2013) A hierarchical and comparative kinetic modeling study of C1–C2 hydrocarbon and oxygenated fuels. Int J Chem Kinet 45:638–675
Andrae J, Johansson D, Björnbom P et al (2005) Co-oxidation in the auto-ignition of primary reference fuels and n-heptane/toluene blends. Combust Flame 140:267–286
Acknowledgments
This work was supported by the Key Fundamental Research Projects of Science and Technology Commission of Shanghai (14JC1403000).
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Ouyang, L., Li, H., Sun, S. et al. Auto-ignition of biomass synthesis gas in shock tube at elevated temperature and pressure. Sci. Bull. 60, 1935–1946 (2015). https://doi.org/10.1007/s11434-015-0935-4
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DOI: https://doi.org/10.1007/s11434-015-0935-4