Pyrolysis technologies for pomegranate (Punica granatum L.) peel wastes. Prospects in the bioenergy sector

RENEWABLE ENERGY

卷:136

Article

Saadi, W.¹  Rodriguez-Sanchez, S.²  Ruiz, B.²  Souissi-Najar, S.¹  Ouederni, A.¹  Fuente, E.² 

[1] Univ Gabes, Natl Sch Engineers Gabes, Lab Res Proc Engn & Ind Syst LR11ES54, Gabes 6026, Tunisia

[2] CSIC, Inst Nacl Carbon INCAR, Dept Chem Proc Energy & Environm, Biocarbon & Sustainabil Grp B&S, Oviedo 33011, Spain

关键词: Bio-char;    Bio-fuels;    Conventional pyrolysis;    Flash pyrolysis;    Industrial biomass waste;    Pomegranate peels;   

DOI  :  10.1016/j.renene.2019.01.017

来源: Elsevier

【 摘 要 】

An unpublished low-cost industrial biomass waste, pomegranate peel, as alternative and sustainable fuel source was studied. A horizontal tubular furnace of original design for conventional and flash pyrolysis was carried out. The bio-char yields from both processes were similar, but the bio-oil and bio-gas yields were higher in flash pyrolysis, depending on the temperature. The bio-char obtained show that it could be used as a fuel (higher heating values >= 28.0 MJ/kg) and as a potential precursor of activated carbon. It was also found that the lower temperature of the flash pyrolysis was, the greater the bio-oil yield (similar to 53%) and that the higher was, the greater the biogas yield (similar to 50%). The bio-oil from conventional pyrolysis has a predominantly furanic nature and contained significant amounts of the phenols and benzenes. In contrast, the bio-oil from flash pyrolysis is similar to that of anthracene oil, both of them being composed mainly of polycyclic aromatic hydrocarbons. The bio-gas obtained by flash pyrolysis is of a higher quality than that obtained by conventional pyrolysis because it has a lower CO2 content (32.4% vs 66.6%) and higher syngas content (CO + H-2) (50.8% vs 26.8%). Flash pyrolysis is better in CH4 production (11.6% vs 4.6%). (C) 2019 Elsevier Ltd. All rights reserved.

【 授权许可】

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