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Synergistic effects of lignin and cellulose during pyrolysis of agricultural waste.

Volpe, Roberto; Zabaniotou, Anastasia A.; Skoulou, Vasiliki


Roberto Volpe

Anastasia A. Zabaniotou

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Dr Vicky Skoulou
Graduate Research Director (GRD) of School of Engineering ; Senior Lecturer (Assoc. Prof.) in Chemical Engineering-Bioenergy ; PI of the B3: Biomass Waste- BioenergH2- Biochars Challenge Group of PGRs and PDRAs


© 2018 American Chemical Society. Varying lignin and cellulose contents in agro-waste cause feed-stock to respond differently during their thermochemical conversion. The effect of pyrolysis temperature (400, 500, 600oC) and feedstock composition on product yields and gas composition of Olive-Kernel (OK) and Corn-Cobs (CC) was investigated in a lab-scale, fix bed reactor under a 20mL/min of nitrogen flow at atmospheric pressure. Results were compared to those obtained in the same pyrolysis set up from model synthetic mixtures of cellulose and lignin, simulating the composition of real feedstocks. Experimental results showed how lignin influences the thermochemical process and how non-negligible synergistic effects among lignin and cellulose are affecting the process outcomes. Lignin affects the increase in char yields from synthetic mixtures more than it does in real feedstock. Similarly higher yield of CO2 in produced gas is reported from pyrolysis of synthetic mixtures compared to that obtained from real feedstock containing the same amount of lignin. Thus the pyrolysis behaviour of raw feedstock cannot be satisfactorily predicted by the behaviour of their main components in an 'additive' rule.


Volpe, R., Zabaniotou, A. A., & Skoulou, V. (2018). Synergistic effects of lignin and cellulose during pyrolysis of agricultural waste. Energy and Fuels, 32(8), 8420-8430.

Journal Article Type Article
Acceptance Date Mar 6, 2018
Online Publication Date Jun 25, 2018
Publication Date Aug 16, 2018
Deposit Date Jun 27, 2018
Publicly Available Date Jun 26, 2019
Print ISSN 0887-0624
Electronic ISSN 1520-5029
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 32
Issue 8
Pages 8420-8430
Keywords Lignin; cellulose; agricultural waste; pyrolysis; product yields; gas composition; biomass; bioenergy; biomaterials
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