Conversion of Hydrilla verticillata to bio-oil and charcoal using a continuous pyrolysis reactor

作者：Promdee, Kittiphop; Phihusut, Doungkamon^*; Monthienvichienchai, Apisake; Tongaram, Yaowapar; Khongsuk, Pattarapol

来源：Biofuels-UK, 2021, 12(1): 43-51.

DOI：10.1080/17597269.2018.1448633

• Pyrolysis
• Hydrilla verticillata
• bio-oil
• charcoal
• biomass

This research investigates the conversion of Hydrilla verticillata into bio-oil and charcoal through a continuous pyrolysis process. The pyrolysis was carried out at a controlled temperature in the range of 300-700 degrees C. The bio-oil and charcoal were analyzed using elemental analysis, chemical composition, and Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDS). At the highest temperature of 700 degrees C the maximum product yield of bio-oil (41.25%) was found, while the maximum product yield of charcoal was 44.98% at 300 degrees C. These results indicate the influence of temperature variation. The analysis of the Hydrilla verticillata mixture found a great portion of large molecules, including phenols (-OH), esters (-C=O), aldehydes (-CHO), and ketones (-C=O). The SEM analysis of the charcoal determined the enhancement of specific surface areas and microporosity, indicating an active diffusion rate, which may make the product suitable for fuel applications.

• 出版日期2021-1-2