Integration of hydrothermal liquefaction and supercritical water gasification for improvement of energy recovery from algal biomass

Duan, Peigao; Yang, Shi-Kun; Xu, Yu-Ping; Wang, Feng; Zhao, Dan; Weng, Yujing; Shi, Xiao‐Xin

doi:10.1016/j.energy.2018.05.044

Cited by 75 publications

(33 citation statements)

References 29 publications

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“…CHX1 removed 78.46% of nitrogen and 91.66% of phosphorus. Another study conducted by Duan et al [57], compared the biochemical compositions of four microalgae ( Nannochloropsis oceanica , Auxenochlorella pyrenoidosa , Arthrospira platensis , and Schizochytrium limacinum ) and four macroalgae ( Ulva prolifera , Saccharina japonica ( Areschoug ), Zostera marina , and Gracilaria eucheumoides Harvey) and arrived at the conclusion that, the nitrogen and phosphorus contents in the algal biomass ranged from 1.24 to 10.79% and 0.03% to 2.49%, respectively, and confirmed the nutrient absorption capability of microalgae from wastewater. Travieso et al [58], conducted a study on the efficacy of distillery effluent treatment by the microalga Chlorella vulgaris.…”

Section: Current Wastewater Treatment Approachesmentioning

confidence: 99%

Microalgae Brewery Wastewater Treatment: Potentials, Benefits and the Challenges

Amenorfenyo

Huang

Zhang

et al. 2019

IJERPH

139

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Concerns about environmental safety have led to strict regulations on the discharge of final brewery effluents into water bodies. Brewery wastewater contains huge amounts of organic compounds that can cause environmental pollution. The microalgae wastewater treatment method is an emerging environmentally friendly biotechnological process. Microalgae grow well in nutrient-rich wastewater by absorbing organic nutrients and converting them into useful biomass. The harvested biomass can be used as animal feed, biofertilizer, and an alternative energy source for biodiesel production. This review discusses conventional and current brewery wastewater treatment methods, and the application and potential of microalgae in brewery wastewater treatment. The study also discusses the benefits as well as challenges associated with microalgae brewery and other industrial wastewater treatments.

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Section: Current Wastewater Treatment Approachesmentioning

confidence: 99%

Microalgae Brewery Wastewater Treatment: Potentials, Benefits and the Challenges

Amenorfenyo

Huang

Zhang

et al. 2019

IJERPH

139

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“…to produce a range of light organics (primarily H 2 , CO, CH 4 , CO 2 , and C 2 H 6 ). Hydrogen generated in this way could be used as a hydrogen source for bio‐crude hydrotreatment further downstream …”

Section: Hydrothermal Liquefactionmentioning

confidence: 99%

Hydrothermal liquefaction of macroalgae for the production of renewable biofuels

Raikova

Allen

Chuck

2019

Biofuels Bioprod Bioref

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In all biorefinery systems, excess water represents a key challenge, and its removal by drying is often a necessary and crucial pre-treatment. Second-generation feedstocks have often fallen at this hurdle, particularly microalgae-derived biomasses, which require extensive (and costly) dewatering. Hydrothermal liquefaction (HTL) has gained increasing attention in recent years as a technology that uses the water present in the feedstock as a versatile reaction medium, which functions as a solvent, reactant, and catalyst for a cascade of organic reactions. Converting organic biomasses into oil, aqueous, solid, and gas fractions, the development of HTL provides the opportunity to exploit previously unsuitable biomasses in a versatile bio-refinery approach. Marine macroalgae (seaweeds) offer a sustainable source of renewable biomass, which require no land or freshwater to cultivate or harvest. With 70% of the surface of the planet covered in seawater and levels of eutrophication increasing, seaweeds are an underutilized resource with excellent potential for relieving the pressure on fossil resources. Hitherto, this exploitation has been hindered by a lack of suitable and economical processing tools. Here we review the potential for applying HTL to processing marine macroalgae and discuss the potential products and services that can be derived from this potential biorefinery system.

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“…Further research should be carried out to improve the quality of bio-oil, such as satisfactory content of volatiles, a lower content of ash and increase in fixed carbon in bio-oil yield (Guedes et al, 2017). The most prominent algae for bio-oil production are seaweeds and multicellular green, brown, and red algae that frequently and closely bear resemblance to terrestrial plants (Duan et al, 2018). Microalgae have a superior photosynthetic efficiency with a quicker growth than lignocellulosic plants (Mohan et al, 2006).…”

Section: Bio-oilmentioning

confidence: 99%

A comprehensive review of renewable energy production from biomass-derived bio-oil

Sharma¹,

Singh²,

Baskar³

et al. 2019

bta

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Renewable energy production has attracted great attention due to public concerns about the depletion of fossil fuels and the growing emphasis on zero carbon emissions. Two main drivers have pushed renewable energy production to the top of the global agenda: climate change and energy security. Biomass is considered to be the only sustainable source of organic carbon on earth and the perfect equivalent to petroleum for the production of bioenergy, biofuels and fine chemicals with net zero carbon emission in a biorefinery. This review focuses on the potential of producing energy from different biomasses and describes technologies such as direct combustion, microwave technology, hydrothermal liquefaction, and fast pyrolysis to convert biomass into bioenergy. Herein, innovative scalable concepts are provided to perform microwave pyrolysis on a larger scale. Current research is mainly focused on the use of catalysts to enhance the process. Various parameters affect the biomass pyrolysis process, properties, and yields of products. These generally include the biomass source, biomass pretreatment (physical, chemical, and biological), the catalyst, the reaction atmosphere, temperature, the heating rate, and the pressure and vapor residence time. The study also shows how various types of reactors affect the bio-oil yield in the presence of a catalyst.

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Integration of hydrothermal liquefaction and supercritical water gasification for improvement of energy recovery from algal biomass

Cited by 75 publications

References 29 publications

Microalgae Brewery Wastewater Treatment: Potentials, Benefits and the Challenges

Microalgae Brewery Wastewater Treatment: Potentials, Benefits and the Challenges

Hydrothermal liquefaction of macroalgae for the production of renewable biofuels

A comprehensive review of renewable energy production from biomass-derived bio-oil

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