Advertisement

Microwave gasification and oxy-steam combustion for using the biomass char

  • Hee Gaen Song
  • Young Nam ChunEmail author
ORIGINAL ARTICLE
  • 15 Downloads

Abstract

To use the biomass char as energy, we carried out a study on biomass carbon receptor-applied microwave reforming to secure energy conversion technology using carbon dioxide, a major greenhouse gas. In the case of the microwave reforming, it was shown that the carbon dioxide can be converted into gas fuel, which is carbon monoxide, and fixed carbon fuel through CO2 gasification reforming on the carbon receptor, and the conversion rate of carbon dioxide was 65% at a reforming temperature of 900 °C. We applied the oxy-steam combustion technology to use the biomass char as a carbonized fuel and performed numerical calculations on the changes in oxygen supply and steam supply to identify these combustion characteristics. As the oxygen supply increased, the combustion temperature remained constant after initially showing the maximum temperature rapidly. Residual char, carbon monoxide and carbon monoxide were also relatively increased in good combustibility and decreased after initial generation. When the steam supply was increased, the temperature increase rate and the maximum temperature were relatively low. Residual char and carbon monoxide were reduced by combustion after remaining until the latter half by combustion.

Keywords

Microwave heating Gas reforming Oxy-steam combustion Greenhouse gas Biomass char 

Notes

Acknowledgements

This paper is a basic research project funded by the Korean government (Ministry of Education) in 2018 with support from the National Research Foundation of Korea (No. 2018R1D1A1B07040326).

References

  1. 1.
    Chun YN, Kim SC, Yoshikawa K (2011) Pyrolysis gasification of dried sewage sludge in a combined screw and rotary kiln gasifier. Appl Energy 88:1105–1112.  https://doi.org/10.1016/j.apenergy.2010.10.038 CrossRefGoogle Scholar
  2. 2.
    Xie Q, Peng P, Liu S, Min M, Cheng Y, Wan Y, Li Y, Lin X, Liu Y, Chen P, Ruan R (2014) Fast microwave-assisted pyrolysis of sewage sludge for bio-oil production. Bioresour Technol 172:162–168.  https://doi.org/10.1016/j.biortech.2014.09.006 CrossRefGoogle Scholar
  3. 3.
    Xiao N, Luo H, Wei WQ, Tang ZY, Hu B, Kong LZ, Sun YH (2015) Microwave-assisted gasification of rice straw pyrolytic biochar promoted by alkali and alkali earth metals. J Anal Appl Pyrolysis 112:173–179.  https://doi.org/10.1016/j.jaap.2015.02.001 CrossRefGoogle Scholar
  4. 4.
    Yasunori O, Ryuzo Y, Hiroshi U, Tatsuya M, Sebastian P, Hiroharu F (2010) Development of a novel hybrid microwave-heater reactor for paper-based waste treatment. J Mater Cycles Waste Manag 12:25–29.  https://doi.org/10.1007/s10163-009-0259-z CrossRefGoogle Scholar
  5. 5.
    Domínguez A, Fernández Y, Fidalgo B, Pis JJ, Menéndez JA (2007) Biogas to syngas by microwave-assisted dry reforming in the presence of char. Energy Fuel 21:2066–2071.  https://doi.org/10.1021/ef070101j CrossRefGoogle Scholar
  6. 6.
    Fidalgo B, Domínguez A, Pis JJ, Menéndez JA (2008) Microwave-assisted dry reforming of methane. Int J Hydrogen Energy 33:4337–4344.  https://doi.org/10.1016/j.ijhydene.2008.05.056 CrossRefGoogle Scholar
  7. 7.
    Saito M, Sadakata M, Saka T (2007) Measurements of surface combustion rate of single coal particles in laminar flow furnace. Combust Sci Technol 51:109–128.  https://doi.org/10.1080/00102208708960319 CrossRefGoogle Scholar
  8. 8.
    Gurgel Veras CA, Saastamoinen J, Carvalho JA Jr, Aho M (1999) Overlapping of the devolatilization and char combustion stages in the burning of coal particles. Combust Flame 116:567–579.  https://doi.org/10.1016/S0010-2180(98)00064-9 CrossRefGoogle Scholar
  9. 9.
    Yu J, Tahmasebi A, Han Y, Yin F, Li X (2013) A review on water in low rank coals: the existence, interaction with coal structure and effects on coal utilization. Fuel Process Technol 106:9–20.  https://doi.org/10.1016/j.fuproc.2012.09.051 CrossRefGoogle Scholar
  10. 10.
    Gou X, Zhou J, Liu J, Cen K (2012) Effects of water vapor on the pyrolysis products of pulverized coal. Procedia Environ Sci 12:400–407.  https://doi.org/10.1016/j.proenv.2012.01.296 CrossRefGoogle Scholar
  11. 11.
    Zou C, Cai L, Wu D, Liu Y, Liu S, Zheng C (2015) Ignition behaviors of pulverized coal particles in O2/N2 and O2/H2O mixtures in a drop tube furnace using flame monitoring techniques. Proc Combust Inst 35:3629–3636.  https://doi.org/10.1016/j.proci.2014.06.067 CrossRefGoogle Scholar
  12. 12.
    Cai L, Zou C, Liu Y, Zhou K, Han Q, Zheng C (2015) Numerical and experimental studies on the ignition of pulverized coal in O2/H2O atmospheres. Fuel 139:198–205.  https://doi.org/10.1016/j.fuel.2014.08.038 CrossRefGoogle Scholar
  13. 13.
    Chun YN, Jeong BR (2018) Characteristics of the microwave pyrolysis and microwave CO2-assisted gasification of dewatered sewage sludge. Environ Technol 39:2484–2494.  https://doi.org/10.1080/09593330.2017.1357758 CrossRefGoogle Scholar
  14. 14.
    Lockwood FC, Salooja AP (1983) The prediction of some pulverized bituminous coal flames in a furnace. Combust Flame 54:23–32.  https://doi.org/10.1016/0010-2180(83)90019-6 CrossRefGoogle Scholar
  15. 15.
    Lu KM, Lee WJ, Chen WH, Lin TC (2013) Thermogravimetric analysis and kinetics of co-pyrolysis of raw/torrefied wood and coal blends. Appl Energy 105:57–65.  https://doi.org/10.1016/j.apenergy.2012.12.050 CrossRefGoogle Scholar

Copyright information

© Springer Japan KK, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Environmental EngineeringChosun UniversityGwangjuRepublic of Korea

Personalised recommendations