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Effect of cosolvent and addition of catalyst (HZSM‐5) on hydrothermal liquefaction of macroalgae
Author(s) -
Yuan Chuan,
Wang Shuang,
Qian Lili,
Barati Bahram,
Gong Xun,
Abomohra Abd ElFatah,
Wang Xudong,
Esakkimuthu Sivakumar,
Hu Yamin,
Liu Lu
Publication year - 2019
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4843
Subject(s) - hydrothermal liquefaction , autoclave , catalysis , liquefaction , chemistry , hydrothermal circulation , solvent , chemical engineering , ethanol , yield (engineering) , nuclear chemistry , organic chemistry , materials science , metallurgy , engineering
Summary The present study aimed to evaluate the effect of the direct liquefaction of macroalgae in an autoclave reactor (50 mL) possessing water and ethanol as cosolvent. The reaction conditions such as duration, temperature, algae/solvent ratio, the composition of cosolvent (ethanol‐water) on product distribution, and bio‐oil characterization were studied. The optimum conditions such as 300°C of temperature, 45 minutes of reaction time, 75% of ethanol, and algae to solvent ratio of 4/40 g/mL supported the bio‐oil yield of 46.75% with a conversion rate of 95.5%. The composition and concentration of the compounds in the bio‐oil produced under various doses of catalyst were described using GC‐MS. The bio‐oil characterization showed that the esters were most predominant in hydrothermal liquefaction with a catalyst (HZSM‐5) compared with hydrothermal liquefaction in the absence of the catalyst.