Study on co-liquefaction of Spirulina and Spartina alterniflora in ethanol-water co-solvent for bio-oil. (15th July 2018)

• Record Type: Journal Article
• Authors: Feng, Huan; Zhang, Bo; He, Zhixia; Wang, Shuang; Salih, Osman; Wang, Qian
• Is Part Of: Energy. Volume 155(2018)
• Page Start: 1093
• Page End: 1101
• Publication Date: 2018-07-15
• Subjects: Spartina alterniflora -- Spirulina -- Ethanol-water co-solvent -- Co-liquefaction -- Bio-oil; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2018.02.146
• Languages: English
• ISSNs: 0360-5442

Abstract

Abstract: Spartina alterniflora of Lignocellulosic biomass is an invasive plant that rapidly grows in China which threatens the local ecological balance. The possibility of co-liquefaction (CL) of Spartina alterniflora with a low-lipid containing microalgae Spirulina in ethanol-water co-solvent (EWCS) for bio-oil production was investigated. The results show that bio-oil productivity was increased to 45.63 wt% with a higher heating value (HHV) of 34 MJ/kg, just because of the positive synergistic effect from CL process. In addition, the synergistic effect of bio-oil production has different performance at different temperatures, ethanol volume fraction or raw material blending ratio. Bio-oils were analyzed by GC-MS and FT-IR, which showed CL of mixed raw material resulted in a significant increase of hexadecanoic acid ethyl ester compared to liquefaction of pure Spirulina or Spartina alterniflora, indicated a good quality of bio-oil produced. Highlights: CL of Spirulina & Spartina alterniflora was studied in EWCS for the first time. Positive synergistic effect was found in CL process. Significantly increase the output of esters in bio-oil was found in CL. More violent polymerization and Maillard were found in CL. Energy recovery rate has been significantly improved in CL.