Understanding the effect of biomass-to-solvent ratio on macroalgae (Saccharina japonica) liquefaction in supercritical ethanol

Zeb, Hassan; Riaz, Asim; Kim, Jaehoon

doi:10.1016/j.supflu.2016.10.013

Cited by 48 publications

(23 citation statements)

References 47 publications

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“…1(C), (D)]. However, excess solvent decreased protein yields, potentially indicating altered solute solubility (Zeb et al, 2017) and disturbed chemical equilibriums (Cavonius et al, 2014).…”

Section: Effects Of Solvent:biomass Ratios On Lipid and Protein Yieldsmentioning

confidence: 99%

Response surface optimization of lipid and protein extractions from Spirulina platensis using ultrasound assisted osmotic shock method

Hadiyanto

Adetya

2018

Food Sci Biotechnol

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In this study, we optimized the process for extracting lipids and proteins from wet biomasses of Spirulina sp. using a 4-kHz ultrasonic osmotic shock method with ultrasound enhancement at a constant frequency of 40 kHz. Optimization was conducted using a response surface methodology (RSM) at an osmotic NaCl concentration of 10-30%, solvent:biomass ratio of 5-15 v/ w, and extraction times of 20-50 min. The present osmotic shock method with ultrasound irradiation increased lipid yields to 6.65% in the presence of 11.9% NaCl, a solvent:biomass ratio of 12:1 v/w, and a 22-min extraction time, and protein yields to 43.96% with 15.12% NaCl, a solvent:biomass ratio of 10:1 v/w, and a 30-min extraction time.

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Section: Effects Of Solvent:biomass Ratios On Lipid and Protein Yieldsmentioning

confidence: 99%

Response surface optimization of lipid and protein extractions from Spirulina platensis using ultrasound assisted osmotic shock method

Hadiyanto

Adetya

2018

Food Sci Biotechnol

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“…To convert them into fuels, HTL processing could be applied to different groups of algal feedstocks containing a number of different components [34]. Products of MiA-HTL usually include a gas phase portion, a liquid-oily fraction (heavy and light biocrude), a liquid aqueous fraction (liquor), and the solid residue [21,[35][36][37][38][39][40] that once improved can be used in the energy sector [41,42]. Fig.…”

Section: Microalgae Hydrothermal Liquefactionmentioning

confidence: 99%

Continuous Hydrothermal Liquefaction for Biofuel and Biocrude Production from Microalgal Feedstock

Lababpour¹

2018

ChemBioEng Reviews

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Microalgal biomass processing by continuous hydrothermal liquefaction (HTL) has recently received much interest and can be used to convert microalgal biomass to biocrude oil and drop‐in fuels. This review focuses on the conversion of microalgae biomass to energy production through continuous HTL processes. In addition, processes for upgrading feedstocks and biocrude are also discussed. The feed of the biomass slurry is treated according to size and moisture regulations. Following separation of the gaseous, liquid, and solid phases, the determination of elemental, physical, and chemical fragments, yield of energy, and other properties of the various products is carried out. Homogeneous or heterogeneous catalysts improve the biocrude yield and quality as does higher moisture content. The high percentage of N2 and O2 in the feedstock results in lower quality products. This may be resolved through pre‐processing of the biomass, controlling of HTL processes conditions, and post‐upgrading processing of the HTL products. The promising potential of microalgae biomass for biocrude and drop‐in fuels may have an important contribution to the world's renewable energy sources through HTL in the near future.

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“…Thus, the utilization of algal biomass (i.e., macroalgae) with low lipid and high carbohydrate contents can be valuable for biofuel production . In light of apparent advantages, such as ease of cultivation and harvesting, high productivity, and high scalability, macroalgae can also produce higher yields of bio-oil with minimum cultivation and harvesting costs, thus providing an efficient and eco-friendly alternative to nonrenewable energy sources. − Furthermore, the ability of macroalgae to grow in harsh environments increases the possibility for integration of wastewater treatment, carbon capturing, and biofuel production under one facility. , Figure shows seaweed productivity for various macroalgal species and Saccharina japonica leads the chart with the highest productivity…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Feasibility Assessment of Combined Heat, Hydrogen, and Power Production via Hydrothermal Liquefaction of Saccharina japonica

Niaz

Brigljević

Park

et al. 2020

ACS Sustainable Chem. Eng.

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An increase in population and a decrease in natural resources have shifted the research focus toward renewable energy alternatives such as biofuel produced from algal biomass. The inherently high moisture content of macroalgae makes hydrothermal liquefaction (HTL) a viable approach for using macroalgae to generate renewable energy. This study focuses on experimental and economic feasibility studies regarding HTL of Saccharina japonica as a feedstock for combined heat, hydrogen, and power (CHHP) production. An experimental study was performed using various operating parameters, viz., temperature, reaction time, and macroalgae to water ratio. The optimal experimental conditions resulted in a bio-oil yield of 20.26 wt % and the highest liquefaction conversion of 91.0 wt %. Based on the experimental results, an industrial-scale CHHP process via HTL of S. japonica was developed and the economic viability of this process was evaluated. We assessed the economics of three different designs with different process configurations for 480 000 tons/year of dry macroalgae. The optimal CHHP process provided 17.7 MW of net power, net LP steam production of 60 000 kg/h, and a total hydrogen production of 5104 kg/h with a minimum hydrogen selling price (MHSP) of $3.00 kg −1 . The proposed CHHP process based on HTL of S. japonica could be a promising alternative for energy production.

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Understanding the effect of biomass-to-solvent ratio on macroalgae (Saccharina japonica) liquefaction in supercritical ethanol

Cited by 48 publications

References 47 publications

Response surface optimization of lipid and protein extractions from Spirulina platensis using ultrasound assisted osmotic shock method

Response surface optimization of lipid and protein extractions from Spirulina platensis using ultrasound assisted osmotic shock method

Continuous Hydrothermal Liquefaction for Biofuel and Biocrude Production from Microalgal Feedstock

Comprehensive Feasibility Assessment of Combined Heat, Hydrogen, and Power Production via Hydrothermal Liquefaction of Saccharina japonica

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