Severity factor kinetic model as a strategic parameter of hydrothermal processing (steam explosion and liquid hot water) for biomass fractionation under biorefinery concept

Ruíz, Héctor A.; Galbe, Mats; Garrote, Gil; Ramirez-Gutierrez, Diana M.; Ximenes, Eduardo; Sun, Shao Ni; Lachos‐Perez, Daniel; Rodríguez-Jasso, Rosa M.; Sun, Run Cang; Yang, Bin; Ladisch, Michael R.

doi:10.1016/j.biortech.2021.125961

Cited by 90 publications

(28 citation statements)

References 110 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Liquid hot water (LHW) and to a lesser extent ozonolysis have been tested for the pretreatment of different lignocellulosic materials with LHW pretreatment being one of the leading pretreatments since it improves cellulose digestibility at lower cost, and is carried out once without chemicals (Kim et al, 2009;Kim et al, 2011;Kim et al, 2013;Ximenes et al, 2017;Ruiz et al, 2020;. When choosing operational conditions of pretreatment, it is important to consider the type of biomass as well as the formed lignocellulosic degradation products that are inhibitory to downstream biochemical reactions (Ko et al, 2015a,b,c;Jonsson andMartin, 2016, Ximenes et al, 2017;Ruiz et al, 2021). In this sense, LHW pretreatment of a variety of lignocellulosic materials has included a wide range of operational conditions, including temperature, resident time, particle size, and water-to-solid biomass ratio, among others, and aims to avoid the formation of enzyme and/or microbial inhibitors.…”

Section: Introductionmentioning

confidence: 99%

“…In this sense, LHW pretreatment of a variety of lignocellulosic materials has included a wide range of operational conditions, including temperature, resident time, particle size, and water-to-solid biomass ratio, among others, and aims to avoid the formation of enzyme and/or microbial inhibitors. Hydrothermal pretreatment is generally performed under conditions of 150-230 °C for 10-50 min and pressures corresponding to about 4.9-20 bars (Kim et al, 2009;Rasmussen et al, 2014;Ximenes et al, 2017;Aguilar et al, 2018;Pino et al, 2018;Ruiz et al, 2021). Hydronium ions act as catalysts to hydrolyze and solubilize hemicellulose at an elevated temperature, while acetic acid and other organic acids generated from hemicellulose also facilitate this process (Weil et al, 1998;Kim I. J. et al, 2014;Kim Y. et al, 2014;Ximenes et al, 2017;Ruiz et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Combined Sugarcane Pretreatment for the Generation of Ethanol and Value-Added Products

et al. 2022

Self Cite

View full text Add to dashboard Cite

In this work, we have tested individual and combination of applications of ozonolysis and liquid hot water (LHW) to pretreat sugarcane bagasse (SCB) for the removal of enzyme and/or microbial inhibitors and generation of potential value-added chemicals. A solid content with 80% cellulose and a liquid phase (liquor) rich in phenolic derived compounds (3 g.L−1) from lignin, sugars (>20 g.L−1), and other compounds, such as furfural and hydroxymethylfurfural (HMF), were generated. Maximal (59%) glucan conversion occurred in the presence of double-pretreated bagasse, which had 32–50% more glucan available than the samples that were individually LHW or ozone-pretreated, resulting in maximal ethanol production (92% after 42 h) from double-pretreated SCB enzyme hydrolyzate. In summary, this work showed that ozone reacts effectively with lignin without the use of any other chemical reagent, and LHW pretreatment, followed by a washing step, was effective in solubilizing and cleaning up the fiber enzyme and microbial inhibitory compounds with ozone being effective against phenolics. Moreover, the generated cellulose-rich substrate is readily fermentable. The acidic liquor fraction removed by sequential washings and containing mainly sugars and phenolic compounds may be evaluated for use in green chemistry bioconversions processes.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Combined Sugarcane Pretreatment for the Generation of Ethanol and Value-Added Products

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, in literature, one approach to understanding particularly non-oxidative HP processing of lignocellulosic materials has been to combine the temperature and time treatment variables into a severity factor log 10 (R 0 ). This factor expresses a kinetic dependence on temperature comparable to the Arrhenius equation ( Overend et al., 1987 ; Ruiz et al., 2021 ). This approach has been attractive because it reduces the dimensionality of conditions for the analyses of results.…”

Section: Methodsmentioning

confidence: 99%

“…However, by itself, the conventional severity factor has some significant limitations for application in this work. It assumes first order conversions during hydrothermal processing and that chemical reactions in the matrix have an activation energy typical for glycosidic bond cleavage of carbohydrates (14.75) ( Ruiz et al., 2021 ). It also does not account for oxidative reactions and the factors which influence those.…”

Section: Methodsmentioning

confidence: 99%

Hydrothermal conversion of toilet waste: effect of processing conditions on gas phase emissions

Gielen

Andrews

Karbiwnyk

et al. 2022

Heliyon

View full text Add to dashboard Cite

“…The effects of heating and cooling times in HP have been previously analyzed using the severity factor (SF) and modified severity factor (MSF) [ 21 ]. However, Ilanidis et al [ 22 ] and Yu et al [ 23 ] reported significant differences in terms of xylan release among pretreatments performed at the same SF with 1 L and 5000 L capacity reactors.…”

Section: Introductionmentioning

confidence: 99%

Polysaccharides Release in a Laboratory-Scale Batch Hydrothermal Pretreatment of Wheat Straw under Rigorous Isothermal Operation

et al. 2021

View full text Add to dashboard Cite

Hydrothermal pretreatment (HP) is an eco-friendly process for deconstructing lignocellulosic biomass (LCB) that plays a key role in ensuring the profitability of producing biofuels or bioproducts in a biorefinery. At the laboratory scale, HP is usually carried out under non-isothermal regimes with poor temperature control. In contrast, HP is usually carried out under isothermal conditions at the commercial scale. Consequently, significant discrepancies in the values of polysaccharide releases are found in the literature. Therefore, laboratory-scale HP data are not trustworthy if scale-up or retrofitting of HP at larger scales is required. This contribution presents the results of laboratory-scale batch HP for wheat straw in terms of xylan and glucan release that were obtained with rigorous temperature control under isothermal conditions during the reaction stage. The heating and cooling stages were carried out with fast rates (43 and −40 °C/min, respectively), minimizing non-isothermal reaction periods. Therefore, the polysaccharide release results can be associated exclusively with the isothermic reaction stage and can be considered as a reliable source of information for HP at commercial scales. The highest amount of xylan release was 4.8 g/L or 43% obtained at 180 °C and 20 min, while the glucan release exhibited a maximum of 1.2 g/L or 5.5%. at 160 °C/180 °C and 30 min.

show abstract

Severity factor kinetic model as a strategic parameter of hydrothermal processing (steam explosion and liquid hot water) for biomass fractionation under biorefinery concept

Cited by 90 publications

References 110 publications

Combined Sugarcane Pretreatment for the Generation of Ethanol and Value-Added Products

Combined Sugarcane Pretreatment for the Generation of Ethanol and Value-Added Products

Hydrothermal conversion of toilet waste: effect of processing conditions on gas phase emissions

Polysaccharides Release in a Laboratory-Scale Batch Hydrothermal Pretreatment of Wheat Straw under Rigorous Isothermal Operation

Contact Info

Product

Resources

About