Pyrolysis of Hesigewula Lignite and Identification of Aromatics in the Pyrolysis Tar by Gas Chromatography-Mass Spectrometry

Abstract:

Hesigewula lignite was studied by fixed bed pyrolysis to achieve the optimal conditions for pyrolysis under low temperature. It was found that the maximum tar yield 6.60wt% under 50 mL/min of gas carrier, 500 °C, 0.5 MPa and holding for 15 min. By column chromatography, we extracted aromatics of the tar generated under the optimal condition. Aromatics with 2 and 3 rings are predominant in the tar from Hesigewula lignite pyrolysis by gas chromatography-mass spectrometry analysis (GC-MS), however, the tetracyclics and above compounds were very few. Naphthalene and its derivatives had pivotal position in aromatics.

• Periodical: Advanced Materials Research (Volume 1094)
• Pages: 151-154
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1094.151
• Online since: March 2015
• Authors: Xing Duan, De Min He, Shao Ying Chang, Jun Guan, Fan Nie, Tao Meng, Qiu Min Zhang*
• Keywords: Aromatics, Gc-Ms, Lignite, Pyrolysis

References

[1] Cai H Y, Megaritis A, Messenbock Dix M, et al: Fuel. Vol. 77 (1998), p.1273.

[2] Griffin T P, Howard J B, Peters W A: Fuel. Vol. 73(1994), p.591.

[3] Marcela Safarova, Jaroslav Kusy, Lukas Andel: Fuel. Vol. 84 (2005), p.2280.

[4] Wang Y, Zhao R, Zhang C: The Scientific World Journal. Vol. 2014 (2014), p.1.

[5] N. Sun, Q.M. Zhang, J. Guan, D.M. He: Journal of Fuel Chemistry and Technology. Vol. 35 (2007), p.241.