Integration of hydrothermal liquefaction and supercritical water gasification for improvement of energy recovery from algal biomass.

Release Time:2025-04-30  Hits:

• Date:2025-04-30
• Title of Paper:Integration of hydrothermal liquefaction and supercritical water gasification for improvement of energy recovery from algal biomass.
• Journal:Energy, 2018, 155:734-745.
• Summary:Herein, we report on a combined process that incorporates hydrothermal liquefaction (HTL) and supercritical
  water gasification (SCWG) to improve energy recovered from algal biomass. Eight algal biomasses,
  including four microalgae and four macroalgae with a large difference in biochemical
  compositions, were screened for this dual process. The algal biomass feedstocks significantly affected the
  carbon and energy distribution in the product fractions (crude bio-oil, solid, gas, and water-soluble
  products). 62.50e71.34% energy of microalgae and 6.03e41.06% energy of macroalgae could be recovered
  as crude bio-oil. 11.86e21.55% carbon of the microalgae and 8.01e15.82% carbon of the macroalgae
  was distributed in the HTL process water in form of water soluble products after the HTL process. 14.3
  e33.7% energy of microalgae and 30.18e36.34% energy of macroalgae was retained in the HTL process
  water. SCWG could convert the organics in the HTL process water into fuel gases consisting mainly of H2
  and CH4. 54e91% carbon of the HTL process water was transformed into the fuel gases, which correspond
  5.53e18.30% energy of the algal biomass. Thus, this work shows that the integration of HTL and SCWG
  could improve energy recovery from algal biomass relative to the HTL process alone.
• Co-author:Pei-Gao Duan, Shi-Kun Yang, Yu-Ping Xu*, Feng Wang, Dan Zhao, Yu-Jing Weng, Xian
• Translation or Not:No
• Date of Publication:2018-05-09