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Licensed Unlicensed Requires Authentication Published by De Gruyter July 19, 2016

Existence of Synergistic Effects During Co-pyrolysis of Petroleum Coke and Wood Pellet

  • Pratik Toshniwal and Vimal Chandra Srivastava EMAIL logo


This study attempts to comprehend the thermal degradation behaviour of different blends of petroleum coke (denoted as PC) and wood pellets (denoted as WP) (1:0, 3:1, 1:1. 1:3 and 0:1) using thermogravimetric (denoted as TG) analysis under N2 atmosphere with constant particle size range of 500–850 µm and at constant heating rate of 5 °C/min. TG experiments indicated that it is difficult to predict the pyrolysis characteristics of their blends accurately based on individual components and blending ratios. The non-additive behaviour of TG curves of the blends indicates presence of synergistic effects which could further promote the volatile yields during the co-pyrolysis process. The mixed model including homogeneous reaction model (denoted as HRM) and shrinking core model (denoted as SCM) models were used to predict the variation in kinetic parameters (activation energy and pre-exponential factor) with different blend ratios. The most obvious synergistic effects were observed when the blending ratio was 25 % on account of maximum mass loss rate from the differential thermogravimetry (denoted as DTG), maximum deviation based on root mean square (denoted as RMS) value as well as divergence in the differential thermogravimetric analysis (denoted as DTA) curve.


1. 1. Aboyade, A.O., Gorgens, J.F., Carrier, M., Meyer, E.L., Knoetze, J.H., 2013. Thermogravimetric Study of the Pyrolysis Characteristics and Kinetics of Coal Blends with Corn and Sugarcane Residues. Fuel Process Technol. 106, 310–320.10.1016/j.fuproc.2012.08.014Search in Google Scholar

2. 2. Acosta, R., Tavera, C., Gauthier-Maradei, P., Nabarlatz, D. 2015. Production of Oil and Char by Intermediate Pyrolysis of Scrap Tyres: Influence on Yield and Product Characteristics. Int. J. Chem. React. Eng. 13(2), 189–200.10.1515/ijcre-2014-0137Search in Google Scholar

3. 3. Chowdhury, R., Sarkary, A., 2012. Reaction Kinetics and Product Distribution of Slow Pyrolysis of Indian Textile Wastes. Int. J. Chem. React. Eng. A 67, 1–21.10.1515/1542-6580.2662Search in Google Scholar

4. 4. Edreis, E.M.A, Luo, G.Q., Li, A.J., Xu, C.F., Yao, H., 2014. Synergistic Effects and Kinetics Thermal Behaviour of PC/Biomass Blends During H2O Cogasification. Energy Convers. Manage. 79, 355–366.10.1016/j.enconman.2013.12.043Search in Google Scholar

5. 5. Fermoso, J., Arias, B., Gil, M., Plaza, M., Pevida, C., Pis, J., Rubiera, F., 2010. Cogasification of Different Rank Coals with Biomass and Petroleum Coke in a High Pressure Reactor for H2-Rich Gas Production. Bioresour. Technol. 101(9), 3230–3235.10.1016/j.biortech.2009.12.035Search in Google Scholar PubMed

6. 6. Gil, M., Casal, D., Pevida, C., Pis, J., Rubiera, F., 2010. Thermal Behaviour and Kinetics of Coal/Biomass Blends during Co-combustion. Bioresour. Technol. 01(14), 5601–5608.10.1016/j.biortech.2010.02.008Search in Google Scholar PubMed

7. 7. Haykiri-Acma, H., Yaman, S., 2007. Synergy in Devolatilization Characteristics of Lignite and Hazelnut Shell During Co-pyrolysis. Fuel 86, 373–380.10.1016/j.fuel.2006.07.005Search in Google Scholar

8. 8. Haykiri-Acma, H., Yaman, S., 2009. Thermogravimetric Investigation on the Thermal Reactivity of Biomass During Slow Pyrolysis. Int. J. Green Energy 6, 333–342.10.1080/15435070903106959Search in Google Scholar

9. 9. Idris, S.S., Rahman, N.A., Ismail, K., Alias, A.B., Rashid, Z.A., Aris, M.J., 2010. Investigation on Thermochemical Behaviour of Low Rank Malaysian Coal, Oil Palm Biomass and their Blends during Pyrolysis via Thermogravimetric Analysis (TGA). Bioresour. Technol. 101(12), 4584–4592.10.1016/j.biortech.2010.01.059Search in Google Scholar PubMed

10. 10. Jones, M.J., Kubacki, M., Kubica, K., Ross, A.B., Williams, A., 2005. Devolatilization Characteristics of Coal and Biomass Blends. J. Anal. Appl. Pyrol. 74, 502–511.10.1016/j.jaap.2004.11.018Search in Google Scholar

11. 11. Kai, J.Q., Wang, Y.P., Zhou, L.M., Huang, Q.W., 2008. Thermogravimetric Analysis and Kinetics of Coal/Plastic Blends During Co-pyrolysis in Nitrogen Atmosphere. Fuel Process Technol. 89, 21–27.10.1016/j.fuproc.2007.06.006Search in Google Scholar

12. 12. Kempegowda, R., Assabumrungrat, S., Laosiripojana, N., 2010. Thermodynamic Analysis for Gasification of Thailand Rice Husk with Air, Steam, and Mixed Air/Steam for Hydrogen-Rich Gas Production. Int. J. Chem. React. Eng. 8, A158, 1–29.10.2202/1542-6580.2378Search in Google Scholar

13. 13. Lazaro, M.J., Moliner, R., Suelves, I., 1998. Non-Isothermal versus Isothermal Technique to Evaluate Kinetic Parameters of Coal Pyrolysis. J. Anal. Appl. Pyrolysis 47(2), 111–125.10.1016/S0165-2370(98)00083-7Search in Google Scholar

14. 14. Li, Z., Chen, Z., Liu, C., Hu, Z., Zhao, W., Zhao, G., 2011. Study on Pyrolysis Characteristics of Corn Straw. Int. J. Chem. React. Eng. A46, 1–14.10.1515/1542-6580.2420Search in Google Scholar

15. 15. Liu, M., Duan, Y., Ma, X., 2014. Effect of Surface Chemistry and Structure of Sludge Particles on Their Co-slurrying Ability with Petroleum Coke. Int. J. Chem. React. Eng. 12(1), 429–439.10.1515/ijcre-2014-0033Search in Google Scholar

16. 16. Mi, T., Wu, Z.S., Shen, B.X., Chen, H.P., Liu. D.C., 2002. An Experimental Study of Combustion Characteristics of Petroleum Coke. Dev. Chem. Eng. Mineral Process 10(5/6), 601–614.10.1002/apj.5500100611Search in Google Scholar

17. 17. Molina, A., Mondragón, F., 1998. Reactivity of Coal Gasification with Steam and CO2. Fuel 77(15), 1831–1839.10.1016/S0016-2361(98)00123-9Search in Google Scholar

18. 18. Nowak, B., Karlström, O., Backman, P., Brink, A., Zevenhoven, M., Voglsam, S., 2013. Mass Transfer Limitation in Thermogravimetry of Biomass Gasification. J. Therm. Anal. Calorim. 111, 183–192.10.1007/s10973-012-2400-9Search in Google Scholar

19. 19. Park, D.K., Kim S.D., Lee, S.H., Lee, J.G., 2010. Co-pyrolysis Characteristics of Sawdust and Coal Blend in TGA and a Fixed Bed Reactor. Bioresour. Technol. 101, 6151–6156.10.1016/j.biortech.2010.02.087Search in Google Scholar PubMed

20. 20. Roberts, D.G., Harris, D.J., Wall, T.F., 2003. Effects of High Pressure and Heating Rate During Coal Pyrolysis on Char Gasification Reactivity. Energy Fuels 17, 887–895.10.1021/ef020199wSearch in Google Scholar

21. 21. Schnial, M., Lulz, J., 1982. Kinetics of Coal Gasification. Ind. Eng. Chem. Process Des. Dev. 21, 256–266.10.1021/i200017a008Search in Google Scholar

22. 22. Soncini, R.M., Means, N.C., Weiland, N.T., 2013. Co-pyrolysis of Low Rank Coals and Biomass: Product Distributions. Fuel 112, 74–82.10.1016/j.fuel.2013.04.073Search in Google Scholar

23. 23. Song, Y.Y., Tahmasebi, A., Yu, J.L., 2014. Co-pyrolysis of Pine Sawdust and Lignite in a Thermogravimetric Analyzer and a Fixed-Bed Reactor. Bioresour. Technol. 174, 204–211.10.1016/j.biortech.2014.10.027Search in Google Scholar

24. 24. Thanatawee, P., Rukthong, W., Sunphorka, S., Piumsomboon, P., Chalermsinsuwan, B., 2016. Effect of Biomass Compositions on Combustion Kinetic Parameters Using Response Surface Methodology. Int. J. Chem. React. Eng. 14(1), 517–526.10.1515/ijcre-2015-0082Search in Google Scholar

25. 25. Ulloa, C.A., Gordon, A.L., Garcia, X.A., 2009. Thermogravimetric Study of Interactions in the Pyrolysis of Blends of Coal with Radiata Pine Sawdust. Fuel Process Technol. 90, 583–590.10.1016/j.fuproc.2008.12.015Search in Google Scholar

26. 26. Vhathvarothai, N., Ness, J., Yu, Q.M.J., 2014. An Investigation of Thermal Behaviour of Biomass and Coal During Copyrolysis using Thermogravimetric Analysis. Int. J. Energy Res. 38, 1145–1154.10.1002/er.3120Search in Google Scholar

27. 27. Vuthaluru, H.B., 2003. Thermal Behaviour of Coal/Biomass Blends During Co-Pyrolysis. Fuel Process. Technol. 85, 141–155.10.1016/S0378-3820(03)00112-7Search in Google Scholar

28. 28. Wang, J., Zhang, S.Y., Guo, X., Dong, A.X., Chen, C., Xiong, S.W., 2012. Thermal Behavior and Kinetics of Pingshuo Coal/Biomass Blends During Copyrolysis and Cocombustion. Energy Fuels 26, 7120–7126.10.1021/ef301473kSearch in Google Scholar

29. 29. Wang, W., Zhang, X., Li, Y., 2013. Study of Co-pyrolysis Characteristics of Lignite and Rice Husk in a TGA and a Fixed Bed Reactor. Int. J. Chem. React. Eng. 11(1), 479–488.10.1515/ijcre-2013-0049Search in Google Scholar

30. 30. Wu, Z.Q., Wang, S.J., Zhao, J., Chen, L., Meng, H.Y., 2014. Thermal Behavior and Char Structure Evolution of Bituminous Coal Blends with Edible Fungi Residue During Co-pyrolysis. Energy Fuels 28, 1792–1801.10.1021/ef500261qSearch in Google Scholar

31. 31. Yaman, S., 2004. Pyrolysis of Biomass to Produce Fuels and Chemical Feedstocks. Energy Convers. Manage. 45, 651–671.10.1016/S0196-8904(03)00177-8Search in Google Scholar

32. 32. Yan, W.P., Chen, Y.Y., 2007. Interaction Performance of Co-pyrolysis of Biomass Mixture and Coal of Different Rank. Proc CSEE 27, 80–86.Search in Google Scholar

33. 33. Yang, H., Yan, R., Chen, H., Lee, D.H., Zheng, C., 2007. Characteristics of Hemicellulose, Cellulose and Lignin Pyrolysis. Fuel 86, 1781–1788.10.1016/j.fuel.2006.12.013Search in Google Scholar

34. 34. Yangali, P., Goldfarb, J.L., Celaya, A.M., 2014. Co-pyrolysis Reaction Rates and Activation Energies of West Virginia Coal and Cherry Pit Blends. J. Anal. Appl. Pyrol. 108, 203–211.10.1016/j.jaap.2014.04.015Search in Google Scholar

35. 35. Yuan, S., Dai, Z.H., Zhou, Z.J., Chen, X.L., Yu, G.S., Wang, F.C., 2012. Rapid Co-pyrolysis of Rice Traw and a Bituminous Coal in a High-Frequency Furnace and Gasification of the Residual Char. Bioresour. Technol. 109, 188–197.10.1016/j.biortech.2012.01.019Search in Google Scholar PubMed

Published Online: 2016-07-19
Published in Print: 2017-04-01

© 2017 Walter de Gruyter GmbH, Berlin/Boston

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