A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of Process Parameters on Hydrothermal Liquefaction of Microalgae Biomass Grown in Municipal Wastewater
Abstract The emerging fuel crisis necessitates a shift in focus towards alternative renewable forms, so that sustainable development can be achieved. Bio-oil is a promising alternative renewable source of energy which is a third generation bio-fuel. Algae are a popular candidate for bio-fuel production due to their high lipid contents, ease of cultivation and rapid growth rate. In this study, Hydrothermal liquefaction of Scenedesmus obliques biomass cultivated in photo-bio-reactor (PBR) from wastewater was studied. The influence of process parameters on the bio-oil yield and bio-oil upgrading was analysed. Different S. obliques biomass to water ratios (0.025, 0.05, 0.075 and 0.1 g/ml) were liquefied at diverse temperatures ranging from 200 to 340°C under 5 MPa N2 gas atmosphere. The influence of catalyst on bio-oil upgradation was studied at varying catalyst loading of the range 1–5 wt %. Bio-oil was analysed using Gas Chromatography Mass Spectroscopy (GC-MS) and Fourier Transform Infrared Spectroscopy (FTIR). Results showed a maximum bio-oil yield of 24.57 wt % at 300°C, 15 g/200 ml biomass load and 2.5 wt % NaOH at 60 min holding time. Also, it was found that the gas generated from liquefaction process contained 22 vol % Hydrogen gas, 18 vol % Carbon dioxide gas, 27 vol % Carbon monoxide gas, 22 vol % of methane gas and a small amount of other gaseous components (H2S). HTL bio-oil was upgraded and it resulted in 30.15 wt % yield with higher degree of C7−C21 range hydrocarbons in it.
Effects of Process Parameters on Hydrothermal Liquefaction of Microalgae Biomass Grown in Municipal Wastewater
Abstract The emerging fuel crisis necessitates a shift in focus towards alternative renewable forms, so that sustainable development can be achieved. Bio-oil is a promising alternative renewable source of energy which is a third generation bio-fuel. Algae are a popular candidate for bio-fuel production due to their high lipid contents, ease of cultivation and rapid growth rate. In this study, Hydrothermal liquefaction of Scenedesmus obliques biomass cultivated in photo-bio-reactor (PBR) from wastewater was studied. The influence of process parameters on the bio-oil yield and bio-oil upgrading was analysed. Different S. obliques biomass to water ratios (0.025, 0.05, 0.075 and 0.1 g/ml) were liquefied at diverse temperatures ranging from 200 to 340°C under 5 MPa N2 gas atmosphere. The influence of catalyst on bio-oil upgradation was studied at varying catalyst loading of the range 1–5 wt %. Bio-oil was analysed using Gas Chromatography Mass Spectroscopy (GC-MS) and Fourier Transform Infrared Spectroscopy (FTIR). Results showed a maximum bio-oil yield of 24.57 wt % at 300°C, 15 g/200 ml biomass load and 2.5 wt % NaOH at 60 min holding time. Also, it was found that the gas generated from liquefaction process contained 22 vol % Hydrogen gas, 18 vol % Carbon dioxide gas, 27 vol % Carbon monoxide gas, 22 vol % of methane gas and a small amount of other gaseous components (H2S). HTL bio-oil was upgraded and it resulted in 30.15 wt % yield with higher degree of C7−C21 range hydrocarbons in it.
Effects of Process Parameters on Hydrothermal Liquefaction of Microalgae Biomass Grown in Municipal Wastewater
Arun, J. (author) / Gopinath, K. P. (author) / Shreekanth, S. J. (author) / Sahana, R. (author) / Raghavi, M. S. (author) / Gnanaprakash, D. (author)
Petroleum Chemistry ; 59 ; 194-200
2019-02-01
7 pages
Article (Journal)
Electronic Resource
English
| American Chemical Society | 2022
Harvesting Microalgae Grown on Wastewater
| British Library Conference Proceedings | 2012
Hydrothermal liquefaction of plantation biomass with two kinds of wastewater from paper industry
| British Library Online Contents | 2008
Ecotoxicity Assessment of Microalgae-Based Road Binder Obtained by Hydrothermal Liquefaction
| Springer Verlag | 2024
A Comparison of Energy Consumption in Hydrothermal Liquefaction and Pyrolysis of Microalgae
| BASE | 2017