Analysis and comparison of bio-oils obtained by hydrothermal liquefaction and fast pyrolysis of beech wood

Haarlemmer, Geert; Guizani, Chamseddine; Anouti, Suzanne; Déniel, Maxime; Roubaud, Anne; Valin, Sylvie

doi:10.1016/j.fuel.2016.01.082

Cited by 103 publications

(62 citation statements)

References 39 publications

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“…Starting as early as the 1970s but increasing significantly over the past decade, research groups at universities and national laboratories around the world have been investigating HTL of a variety of biomass feed types, such as woody biomass (Schaleger et al, 1982;Haarlemmer et al, 2016;Tran et al, 2017), plant biomass (Zhang et al, 2013;Zhu et al, 2015;Yan et al, 2016), food processing waste (Minowa et al, 1995;Yang et al, 2016;Posmanik et al, 2017), agricultural waste (Chan et al, 2014;Singh et al, 2015;Zhu et al, 2017), animal manure (Xiu et al, 2010;Theegala and Midgett, 2012), pulp/paper sludge (Xu and Lancaster, 2008), and algae Neveux et al, 2014;Faeth et al, 2016). Previous work in CHG over the same period has looked at conversion of agricultural waste (Pei et al, 2009) and industrial wastewater (Seif et al, 2016) to hydrogen.…”

Section: Introductionmentioning

confidence: 99%

Bench‐Scale Evaluation of Hydrothermal Processing Technology for Conversion of Wastewater Solids to Fuels

Marrone

Elliott²,

Billing³

et al. 2018

Water Environment Research

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Hydrothermal Liquefaction (HTL) and Catalytic Hydrothermal Gasification (CHG) proof-of-concept bench-scale tests were performed to assess the potential of hydrothermal treatment for handling municipal wastewater sludge. HTL tests were conducted at 300 to 350 °C and 20 MPa on three different feeds: primary sludge, secondary sludge, and digested solids. Corresponding CHG tests were conducted at 350 °C and 20 MPa on the HTL aqueous phase output using a ruthenium-based catalyst. Biocrude yields ranged from 25 to 37%. Biocrude composition and quality were comparable to biocrudes generated from algae feeds. Subsequent hydrotreating of biocrude resulted in a product with comparable physical and chemical properties to crude oil. CHG product gas methane yields on a carbon basis ranged from 47 to 64%. Siloxane concentrations in the CHG product gas were below engine limits. The HTL-CHG process resulted in a chemical oxygen demand (COD) reduction of > 99.9% and a reduction in residual solids for disposal of 94 to 99%.

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Section: Introductionmentioning

confidence: 99%

Bench‐Scale Evaluation of Hydrothermal Processing Technology for Conversion of Wastewater Solids to Fuels

Marrone

Elliott²,

Billing³

et al. 2018

Water Environment Research

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“…The HTL process occurs in subcritical water conditions (below 374°C and 22 MPa) (26). Mainly, the operating conditions for the biomass HTL process are 250°C -350°C and 8 -22 MPa (27)(28)(29)(30). Hydrothermal carbonization occurs at a lower temperature (180°C -250°C) and hydrothermal gasification in supercritical conditions of water, which both were not the aim of this study (31).…”

Section: Experimental Methodsmentioning

confidence: 97%

Bio-Oil Production from Sargassum Macroalgae: A Green and Healthy Source of Energy

Rahbari

Akram

Pazoki

et al. 2019

Jundishapur J Health Sci

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Background: Increases in fossil fuel consumption after industrial revolution has caused environmental problems and human diseases, and it is vital to replace fossil fuels by biofuels, not only for sustainable energy production, but also for the survival of earth and human lives. Objective: Today, algae have become a potential source of biofuels to supply sustainable energy. Sargassum species are among the most predominant brown macro-algae in seas. Hydrothermal liquefaction is a promising process in biofuel production from biomass, which uses less energy to produce biofuel compared to other biofuel production techniques. The main objective of this paper, is the extraction of bio-oil from Sargassum macro-algae. Methods: The hydrothermal liquefaction of Sargassum sp. was performed under three temperature conditions of 250, 300 and 350°C, both with and without using NiFe2O4 as a catalyst. The GC-MS and FTIR analysis performed to analyze the obtained bio-oil. Results: Maximum liquefaction yield for the non-catalytic and catalytic process was 6.85 and 7.20%, which occurred at 300 and 350°C respectively. The obtained bio-oil has zero sulfur and low nitrogen (~4%) and oxygen (~10%) content, which implies that in terms of human health, the bio-oil will be healthy with some upgrading. The bio-oil was mainly composed of n-Hexadecanoic acid (57.86%) followed by tetradecanoic acid (5.12%). Conclusions: According to the obtained results from this research, obtained the bio-oil requires upgrading to be useful as biofuel. Also, NiFe2O4 nanoparticles increased the bio-oil yield and are useful to produce magnetic bio-char.

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“…In practice, hydrothermal liquefaction is valued because it provides rapid conversion of waste biomass into bio-oil, avoiding the high energy cost of drying [42]. Most studies have shown that temperatures between 250 and 370°C are optimal for the production of bio-oil, with no general conclusion given about the effects of reaction time and moisture content [43]. Hydrothermal co-liquefaction is an interesting pathway and should be explored in future studies [44,45].…”

Section: Hydrothermal Liquefaction (Thermal Depolymerization)mentioning

confidence: 99%

Review of Biofuel Technologies in WtL and WtE

Garcia¹,

Lourinho²,

Brito³

et al. 2019

Elements of Bioeconomy

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Processing of biomass feedstocks to produce energy, fuels, and chemicals via a combination of different applied technologies is considered a promising pathway to achieve sustainable waste management, with many environmental and economic benefits. In this chapter, we review the current state of the main processes associated with energy recovery and biofuel production under the concept of waste biorefineries. The reviewed technologies are classified into thermochemical, biological, and chemical, including combustion, gasification, steam explosion, pyrolysis, hydrothermal liquefaction, and torrefaction; anaerobic digestion, fermentation, enzymatic treatment, and microbial electrolysis; and hydrolysis, solvent extraction, transesterification, and supercritical conversion. Their brief history, current status, and future developments are discussed within a perspective of valorization and managing of current waste streams with no solution.

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Analysis and comparison of bio-oils obtained by hydrothermal liquefaction and fast pyrolysis of beech wood

Cited by 103 publications

References 39 publications

Bench‐Scale Evaluation of Hydrothermal Processing Technology for Conversion of Wastewater Solids to Fuels

Bench‐Scale Evaluation of Hydrothermal Processing Technology for Conversion of Wastewater Solids to Fuels

Bio-Oil Production from Sargassum Macroalgae: A Green and Healthy Source of Energy

Review of Biofuel Technologies in WtL and WtE

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