Comparison Study on the Water-to-Biomass Ratio in Hydrothermal Carbonization of Fresh Seaweed

Article Agricultural Engineering

Mesoporous and adsorption behavior of algal biochar prepared via sequential hydrothermal carbonization and ZnCl2 activation

Thanh-Binh Nguyen et al.

Summary: Biochar derived from brown algal Ascophyllum nodosum showed good adsorption performance for antibiotic removal from water. The biochar, recycled from biowaste, demonstrated a promising and sustainable method.

BIORESOURCE TECHNOLOGY (2022)

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Article Energy & Fuels

Production of solid hydrochar from waste seaweed by hydrothermal carbonization: effect of process variables

Sepideh Soroush et al.

Summary: This study compares the properties of hydrothermal carbonization (HTC) char produced from two different species of waste seaweed. The results show that an increase in residence time and HTC temperature can increase the surface area of the char, but decrease the yield. The Sargassum-based char exhibits high methylene blue adsorption capacity under specific conditions.

BIOMASS CONVERSION AND BIOREFINERY (2022)

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Article Agricultural Engineering

Simultaneous co-hydrothermal carbonization and chemical activation of food wastes to develop hydrochar for aquatic environmental remediation

Shareefa Ahmed S. Alshreef et al.

Summary: This study converted locally generated food wastes, such as Arabic coffee ground and olive oil cake, to hydrochar through simultaneous co-hydrothermal carbonization and chemical activation. The developed hydrochar showed good adsorption performance for methylene blue and crystal violet, governed by multiple mechanisms.

BIORESOURCE TECHNOLOGY (2022)

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Article Green & Sustainable Science & Technology

Cascading disposal for food waste by integration of hydrothermal carbonization and supercritical water gasification

Mi Yan et al.

Summary: This study investigated a cascading energy recovery process by integrating hydrothermal carbonization (HTC) and supercritical water gasification (SCWG) for the efficient disposal and conversion of HTC process water. The results showed that energy densified hydrochar could be obtained through HTC, while SCWG efficiently converted the HTC process water into H-2-rich syngas.

RENEWABLE ENERGY (2022)

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Article Energy & Fuels

Biochar characteristics produced via hydrothermal carbonization and torrefaction of peat and sawdust

Kristina Krysanova et al.

Summary: Biochars made by hydrothermal carbonization and torrefaction have stable structures and rich chemical properties, which make them suitable for both fuel and as substitutes for fossil coals.

FUEL (2022)

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Article Green & Sustainable Science & Technology

Influence of water-washing pretreatment on ash fusibility of biomass

Jiahao Jiang et al.

Summary: Biomass has the potential to partially replace fossil fuels as a carbon-neutral fuel. Water washing pretreatment can improve the ash fusibility performance of biomass, and the effect of water washing on ash fusion temperatures can be explained through thermodynamic equilibrium calculations. Additionally, a convenient method to study the dynamic behavior of biomass ash during fusion process is proposed.

RENEWABLE ENERGY (2022)

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Article Engineering, Environmental

Characterization of hydrochar and process water from the hydrothermal carbonization of Refuse Derived Fuel

Catarina Nobre et al.

Summary: Hydrothermal carbonization (HTC) was used to upgrade Refuse Derived Fuel (RDF), resulting in hydrochars with enhanced fuel properties. The process parameters had significant effects on the characteristics of the produced hydrochars. HTC process led to dechlorination and generation of acidic process waters, which require further management.

WASTE MANAGEMENT (2021)

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Article Energy & Fuels