Bio-oil production from hydrothermal liquefaction of waste Cyanophyta biomass: Influence of process variables and their interactions on the product distributions |
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| Authors: | Wenhan Song Shuzhong Wang Yang Guo Donghai Xu |
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| Affiliation: | 1. MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi''an Jiaotong University, Xi''an, Shaanxi, 710049, China;2. Xi''an Jiaotong University Suzhou Academy, Suzhou, Jiangsu, 215123, China |
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| Abstract: | Hydrothermal liquefaction (HTL) of waste Cyanophyta biomass at different temperatures (factor A, 260–420 °C), times (factor B, 5–75 min) and algae/water (a/w) ratios (factor C, 0.02–0.3) by single reaction condition and Response Surface Method (RSM) experiments was investigated. By single reaction condition runs, maximum total bio-oil yield (29.24%) was obtained at 350 °C, 60 min and 0.25 a/w ratio. Maximum bio-oil HHV of 40.04 MJ/kg and energy recovery of 51.09% was achieved at 350 °C, 30 min, 0.1 a/w ratio and 350 °C, 60 min, 0.25 a/w ratio, respectively. RSM results indicate that effect of AB interaction was significant on light bio-oil yield. Both AC and AB had more remarkable influence than BC on heavy bio-oil yield and aqueous total organic carbon (TOC) recovery whereas BC was noticeable on ammonia nitrogen (NH3 | |
| Keywords: | Hydrothermal liquefaction Bio-oil Biomass conversion |
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