Conversion of Biomass to Manufacture Liquid Bio-fuel via Hydrothermal Liquefaction
Date Issued
2015
Date
2015
Author(s)
Chen, Chi-Pai
Abstract
Since the decrease of fossil fuel, the development of renewable energy is concerned around the world. In this research, we are going to talk about the method of transforming biomass into bioenergy. The way we use is hydrothermal liquefaction (HTL), one of thermochemical methods. And the impact factors of HTL include reaction time, reaction temperature, heating rate, type of materials, diameter of materials, initial gas in reactor and the type of catalysts. The products of HTL contain acetone soluble solids (BO), water soluble organics (WSO), solid product (SP) and gas product. In my experiments, I want to Fig. out how reaction time, reaction temperature, type of materials and type of catalysts affect the outcomes. The most important product of HTL is BO. And the results of BO show that the used of algae powder (AP) will lead to higher yield of BO and higher BO heating value. Without the adding of catalyst, the yield of BO can be 22.31 wt.％ and the BO heating value is 9184.17 kcal kg-1 high. After adding the catalyst, yield can even reach 24.61 wt.% and the heating value can become 9328.32 kcal kg-1. If replacing AP with bamboo chopsticks (BC), the yield of BO is only 3.83 wt.％ low and the BO heating value is only 7393.35 kcal kg-1. However, the adding of catalyst can lead to a big change of BO yield and heating value of BC HTL results. The BO yield can reach 21.24 wt.% and BO heating value can become 8088.18 kcal kg-1 after catalyst being added. Although the heating value of BO from AP is high, the simulated distillation (SDT) result shows that the property of it is not as good as BO from BC. SDT results indicate that the use of BC and adding of catalyst can improve the property of BO and make it more similar to the liquid fuels we used, like kerosene and heavy oil etc.
Subjects
Hydrothermal liquefaction (HTL)
bamboo chopsticks
algae powder
biomass
biofuel
liquid fuel
SDGs
Type
thesis
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