Hydrolysis of lignocellulosic biomass in water under elevated temperatures and pressures

Rogalinski, Tim; Ingram, Thomas; Brunner, Gerd

doi:10.1016/j.supflu.2008.05.003

Cited by 205 publications

(117 citation statements)

References 19 publications

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“…In this case, the pH of the H2O -CO2 mixture decreased from 4.1 with N2 to 3.9 with CO2. Hence, as reported by Rogalinski et al (2008), the obtained results of RS yield were not surprising because a decrease in pH was not observed. It is worth pointing out that a pH value of 2.0 or less is caused by the addition of sulfuric acid when acid hydrolysis was applied.…”

Section: Hydrolysissupporting

confidence: 74%

Thermal Hydrolysis of Orange Peel and its Fermentation with Alginate Beads to Produce Ethanol

Vázquez¹,

Roa-Morales²,

Natividad³

et al. 2017

BioResources

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Orange peel (OP) was subjected to thermal hydrolysis at temperature (T) and pressure (P) values lower than 180 °C and 1000 kPa, respectively, to minimize the energy consumption and obtain a good ethanol yield. The process was conducted in an autoclave, a pressurized reactor for studying the effect of T (120 to 180 °C), P (500 to 1000 kPa), gas type (N2 or CO2), and OP loading (2.5 x10 -2 and 5 x10 -2 gmL -1 ) on the reducing sugars yield. The results were compared with those from acid hydrolysis. Hydrolysates were fermented using immobilized yeast on alginate beads, and the highest ethanol yield of 33.14 g/L was obtained from OP treated at 120 °C. Under these conditions, a minimum of 1,407 kWh energy consumption was achieved.

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Section: Hydrolysissupporting

confidence: 74%

Thermal Hydrolysis of Orange Peel and its Fermentation with Alginate Beads to Produce Ethanol

Vázquez¹,

Roa-Morales²,

Natividad³

et al. 2017

BioResources

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show abstract

“…This value can be easily derived from the mechanism of HTC formation, since from each molecule of glucose, which reacts to form HTC carbon, four water molecules (40% of the starting mass) are respectively eliminated [23] [24]. These represent an unavoidable yield loss, which must be taken into account.…”

Section: Yields and Elemental Compositionmentioning

confidence: 99%

Morphological and structural differences between glucose, cellulose and lignocellulosic biomass derived hydrothermal carbons

2011

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“…Carbon dioxide (CO2) can be added to acidify subcritical and supercritical water to increase reaction rates. CO2 reacts with water to form carbonic acid, releases protons to acts as a catalyst for hydrolysis reactions (Rogalinski et al, 2008), as shown in :…”

Section: Subcritical and Supercritical Water Hydrolysis Technologymentioning

confidence: 99%

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

et al. 2017

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Please cite this article as: Lachos-Perez D., Brown A.B., Mudhoo A., Martinez J., Timko M.T., Rostagno M.A., Forster-Carneiro T. Subcritical and supercritical water extraction, hydrolysis, gasification and carbonization of biomass: a critical review. Biofuel Research Journal 14 (2017) HIGHLIGHTSØAdvances of research trends in development of subcritical and supercritical water processes technologies are reviewed.Essential aspects of sub-and supercritical water applied to extraction, hydrolysis, carbonization and gasification processes are discussed. ØEquipment design, process parameters, and types of biomass used for sub-and supercritical water process are presented. ØBioactive compounds, reducing sugars, hydrogen, biodiesel, and hydrothermal char are the final products of sub-and supercritical water processes. This review summarizes the recent essential aspects of subcritical and supercritical water technology applied to the extraction, hydrolysis, carbonization, and gasification processes. These are clean and fast technologies which do not need pretreatment, require less reaction time, generate less corrosion and residues, do not use toxic solvents, and reduce the synthesis of degradation byproducts. The equipment design, process parameters, and types of biomass used for subcritical and supercritical water process are presented. The benefits of catalysis to improve process efficiency are addressed. Bioactive compounds, reducing sugars, hydrogen, biodiesel, and hydrothermal char are the final products of subcritical and supercritical water processes. The present review also revisits advances of the research trends in the development of subcritical and supercritical water process technologies. GRAPHICAL ABSTRACT ARTICLE INFO ABSTRACT

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Hydrolysis of lignocellulosic biomass in water under elevated temperatures and pressures

Cited by 205 publications

References 19 publications

Thermal Hydrolysis of Orange Peel and its Fermentation with Alginate Beads to Produce Ethanol

Thermal Hydrolysis of Orange Peel and its Fermentation with Alginate Beads to Produce Ethanol

Morphological and structural differences between glucose, cellulose and lignocellulosic biomass derived hydrothermal carbons

Applications of subcritical and supercritical water conditions for extraction, hydrolysis, gasification, and carbonization of biomass: a critical review

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