Department of Chemical Engineering, National Institute of Technology Calicut, Kozhikode 673601, India.
Department of Chemical Engineering, National Institute of Technology Calicut, Kozhikode 673601, India.
Bioresour Technol. 2022 Nov;363:127911. doi: 10.1016/j.biortech.2022.127911. Epub 2022 Sep 8.
Hydrothermal liquefaction (HTL) is a thermochemical conversion process to produce biofuel from biomass. In this work, co-HTL of spirulina platensis (SP) with rice husk (RH), coconut shell (CS) and high-density polyethylene (HDPE) is performed, which are not reported in the literature. The maximum biocrude yield for SP and RH mixture is 20.1 wt% at blend ratio of 50:50, temperature of 300 °C, reaction time of 30 mins and solid loading of 20 wt% whereas for SP and CS mixture, the maximum biocrude yield of 12.2 wt% is obtained under same operating conditions. It is found that biocrude yield enhances with increasing blending ratio of SP to lignocellulosic biomass. For co-HTL of SP and HDPE, the maximum biocrude yield of 28.8 wt% is obtained at blend ratio of 50:50, 350 °C, 30 mins and 20 wt% solid concentrations. For this case, the biocrude yield decreases with increasing SP/HDPE ratios. Furthermore, various characterisation methods are used to analyse the quality of biocrude.
水热液化（HTL）是一种将生物质转化为生物燃料的热化学转化工艺。在这项工作中，我们对螺旋藻（SP）与稻壳（RH）、椰子壳（CS）和高密度聚乙烯（HDPE）进行共 HTL，这在文献中尚未报道。在混合比例为 50:50、温度为 300°C、反应时间为 30 分钟和固载量为 20wt%的条件下，SP 和 RH 混合物的最大生物油产率为 20.1wt%，而对于 SP 和 CS 混合物，在相同操作条件下，最大生物油产率为 12.2wt%。研究发现，生物油产率随 SP 与木质纤维素生物质混合比例的增加而提高。对于 SP 和 HDPE 的共 HTL，在混合比例为 50:50、350°C、30 分钟和 20wt%固载量的条件下，最大生物油产率为 28.8wt%。在这种情况下，生物油产率随 SP/HDPE 比例的增加而降低。此外，还采用了各种特性分析方法来分析生物油的质量。
