Hydrothermal conversion of anaerobic wastewater fed microalgae: effects of reaction temperature on products distribution and biocrude properties

• DOI: 10.1049/iet-rpg.2018.6278
• Publication Date: 2019-06-18T02:22:50Z
• Authors: Hugang Li; Zhidan Liu; Meng Wang; Jianwen Lu; Trevor Bultinck; Yingxian Wang; Xinfeng Wang; Yuanhui Zhang; Haifeng Lu; Na Duan; Baoming Li; Dongming Zhang; Taili Dong
• Keywords: 13. Climate action; 0211 other engineering and technologies; 02 engineering and technology; 7. Clean energy; 6. Clean water

Microalgae using non‐arable land were considered as promising biomass for biocrude production through hydrothermal liquefaction (HTL) and can also be used environmentally‐friendly wastewater treatment. In this study, we illuminated the effect of reaction temperature on products distribution properties from HTL Chlorella sp. grown in anaerobic digestion (AD) chicken manure via HTL. The highest yield (30.35%, daf) energy recovery rate (49.6%) both achieved at 330 °C, while HHV (37.17 MJ/kg) oil was 290 °C. increased 25.46 to 30.35% 270 gases showed a similar trend under 310 On contrary, solid decreased approached 350 lowest nitrogen content (4.6%) H/C (1.50) obtained respectively. Results imply that deoxygenation enhanced with due decarboxylation higher temperatures. Specially, by 39.4–47.4% range 270–350 integrated pathways nutrient recycling animal coupling AD/HTL, algae technologies further proposed.