Low-temperature catalytic conversion of alkaline sewage sludge bio-oil to biodiesel: Product characteristics and reaction mechanisms

Arazo, Renato O.; Capareda, Sergio C.; Ofrasio, Bjorn Ivan G.; Ido, Alexander L.; Chen, Wei‐Hsin; Luna, Mark Daniel G. de

doi:10.1016/j.eti.2020.101266

Cited by 12 publications

(1 citation statement)

References 34 publications

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“…During hydrogasification of biomass, hydrogen may inhibit the re-polymerization of free radical fragments into carbon. Therefore, compared with ordinary pyrolysis, hydropyrolysis has the advantages of high carbon content, hydrocarbon yield, and bio-oil quality [15]. In addition, the hydropyrolysis process is self-heating and does not require additional heat, which is easier to expand to the commercial scale [16].…”

Section: Introductionmentioning

confidence: 99%

Improved Bio-Oil Quality from Pyrolysis of Pine Biomass in Pressurized Hydrogen

Wang

et al. 2021

Applied Sciences

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The pyrolysis of pine sawdust was carried out in a fixed bed reactor heated from 30 °C to a maximum of 700 °C in atmospheric nitrogen and pressurized hydrogen (5 MPa). The yield, elemental composition, thermal stability, and composition of the two pyrolysis bio-oils were analyzed and compared. The result shows that the oxygen content of the bio-oil (17.16%) obtained under the hydrogen atmosphere was lower while the heating value (31.40 MJ/kg) was higher than those of bio-oil produced under nitrogen atmosphere. Compounds with a boiling point of less than 200 °C account for 63.21% in the bio-oil at pressurized hydrogen atmosphere, with a proportion 14.69% higher than that of bio-oil at nitrogen atmosphere. Furthermore, the hydrogenation promoted the formation of ethyl hexadecanoate (peak area percentage 19.1%) and ethyl octadecanoate (peak area percentage 15.42%) in the bio-oil. Overall, high pressure of hydrogen improved the bio-oil quality derived from the pyrolysis of pine biomass.

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Section: Introductionmentioning

confidence: 99%

Improved Bio-Oil Quality from Pyrolysis of Pine Biomass in Pressurized Hydrogen

Wang

et al. 2021

Applied Sciences

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Recovery and conversion of restaurant’s grease trap wastes into crude biodiesel

Paragoso

Hormiga

Odchigue

et al. 2023

Int J Energ Water Res

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A systematic overview of current advancements for chemical, material, and energy production using sewage sludge for industrial ecology and sustainability transition

Mulopo

2024

Environmental Sustainability

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Urbanization and population expansion have increased the demand for scarce resources such as land, water, food, and energy. Furthermore, it has heightened environmental concerns, such as pollution and waste management. The difficulties above present significant challenges to the broader goal of attaining global sustainable development. As a result, there is considerable concern about sustainable waste recycling and management solutions. Among these efforts, expanding wastewater treatment facilities has emerged as a critical tool for environmental protection. As a result of the growth of wastewater treatment facilities, there has been a significant increase in sewage sludge (SS) production. Consequently, an urgent need exists to investigate alternative treatment and value-added methods for sewage sludge. This review looks at the current state of sewage applications for energy and resource recovery to foster sustainable development and industrial ecology through sewage sludge feedstocks. Furthermore, it aims to promote additional research into improving existing sewage sludge management systems, ensuring their cost-effectiveness, public acceptance, and environmental sustainability.

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Low-temperature catalytic conversion of alkaline sewage sludge bio-oil to biodiesel: Product characteristics and reaction mechanisms

Cited by 12 publications

References 34 publications

Improved Bio-Oil Quality from Pyrolysis of Pine Biomass in Pressurized Hydrogen

Improved Bio-Oil Quality from Pyrolysis of Pine Biomass in Pressurized Hydrogen

Recovery and conversion of restaurant’s grease trap wastes into crude biodiesel

A systematic overview of current advancements for chemical, material, and energy production using sewage sludge for industrial ecology and sustainability transition

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