Hydrothermal liquefaction of biomass model components for product yield prediction and reaction pathways exploration

Yang, Jie; He, Quan; Niu, Haibo; Corscadden, Kenneth

doi:10.1016/j.apenergy.2018.06.142

Cited by 137 publications

(68 citation statements)

References 56 publications

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“…Biocrudes produced during the HTL of biomass consist of a complex mixture of several compounds of different nature, including aldehydes, ketones, phenols, alkanes, fatty/carboxylic acids, and nitrogen compounds. 125 The presence and abundance of these species in the bio-crude are directly linked to the composition of the raw material and the reaction conditions (temperature, time, pressure and catalyst type and loading) used in the HTL process. The chemical determination of these species in the bio-crude is complex, as this liquid also contains some high mass weight compounds, primarily derived from lignin, that cannot be determined by Gas Chromatography (GC).…”

Section: Chemical Compositionmentioning

confidence: 99%

Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review

2021

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Section: Chemical Compositionmentioning

confidence: 99%

Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review

2021

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“…Hemicellulose is composed of xylose, mannose, and other monosaccharides. Its structure is uneven due to the abundant side chain groups, and can be easily dissolved and hydrolyzed above 180°C [27]. Lignin comprises three different types of phenylpropane structural units connected by C-O-C bonds and C-C bonds.…”

Section: Interactive Effects Of the Components On The Bio-oil Yieldmentioning

confidence: 99%

Interactions of the Main Components in Paper‐Plastic‐Aluminum Complex Packaging Wastes during the Hydrothermal Liquefaction Process

Wang

Zhu

et al. 2021

Chem Eng & Technol

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Hydrothermal liquefaction was applied to treat paper-plastic-aluminum (Al-PE-Pa) complex packaging waste for bio-oil production. The interactive effects between the main components of paper fiber, low-density polyethylene (LDPE), and aluminum foil in such complex material were studied. The co-liquefaction of paper fiber and LDPE had a significant synergistic effect. The addition of hydrogen-rich LDPE effectively promoted the removal of oxygen-containing groups. Aluminum foil had only a slight impact on the liquefaction of paper fiber, but it can significantly decrease the oxygen content of the bio-oil, increase the high heating value of the bio-oil, and significantly reduce the ester and phenol contents in the biooil. The co-liquefaction of paper fiber/LPDE/aluminum foil exhibited superimposed effects of paper-plastic synergy and in-situ hydrogenation of Al-H 2 O reaction. A new pathway for the energy utilization of Al-PE-Pa complex packaging waste is provided.

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“…Based on experimental results from GC-MS and 1 H-NMR characterization, a general reaction network as well as predicted pathway schemes for HTL of lipids, proteins and non-fibrous carbohydrates in low-lipid microalgae were proposed [16]. A combination of predictive biocrude yield and reaction network study was performed by Yang et al [17]. The prediction model was developed using a mixture design of five model components and verified with results from actual feedstock and mixtures of model components.…”

Section: Introductionmentioning

confidence: 99%

“…In the present study, the generalized reaction concepts and predicted pathway schemes mentioned in literature are consolidated [15][16][17], and put into live in a comprehensive Aspen Plus ® simulation for three different feedstock. Fifty one model compounds are used as representatives of the biomass.…”

Section: Introductionmentioning

confidence: 99%

An In-Depth Process Model for Fuel Production via Hydrothermal Liquefaction and Catalytic Hydrotreating

2021

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One of the more promising technologies for future renewable fuel production from biomass is hydrothermal liquefaction (HTL). Although enormous progress in the context of continuous experiments on demonstration plants has been made in the last years, still many research questions concerning the understanding of the HTL reaction network remain unanswered. In this study, a unique process model of an HTL process chain has been developed in Aspen Plus® for three feedstock, microalgae, sewage sludge and wheat straw. A process chain consisting of HTL, hydrotreatment (HT) and catalytic hydrothermal gasification (cHTG) build the core process steps of the model, which uses 51 model compounds representing the hydrolysis products of the different biochemical groups lipids, proteins, carbohydrates, lignin, extractives and ash for modeling the biomass. Two extensive reaction networks of 272 and 290 reactions for the HTL and HT process step, respectively, lead to the intermediate biocrude (~200 model compounds) and the final upgraded biocrude product (~130 model compounds). The model can reproduce important characteristics, such as yields, elemental analyses, boiling point distribution, product fractions, density and higher heating values of experimental results from continuous experiments as well as literature values. The model can be applied as basis for techno-economic and environmental assessments of HTL fuel production, and may be further developed into a predictive yield modeling tool.

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Hydrothermal liquefaction of biomass model components for product yield prediction and reaction pathways exploration

Cited by 137 publications

References 56 publications

Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review

Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review

Interactions of the Main Components in Paper‐Plastic‐Aluminum Complex Packaging Wastes during the Hydrothermal Liquefaction Process

An In-Depth Process Model for Fuel Production via Hydrothermal Liquefaction and Catalytic Hydrotreating

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