Optimizing Ammonia Pressurization/Depressurization Processing Conditions to Enhance Enzymatic Susceptibility of Dwarf Elephant Grass

Ferrer, Alexis; Byers, F. M.; Sulbarán-de-Ferrer, Betzabé; Dale, Bruce E.; Aiello, Cateryna

doi:10.1007/978-1-4612-1392-5_12

Cited by 2 publications

(3 citation statements)

References 27 publications

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“…a. Overview: The pretreatment method using alkaline reagent had emerged as one of the most viable process options [44][45] mainly due to its strong pretreatment effect and relatively simple process scheme. The main features of alkaline pretreatment are that it selectively removes lignin without degrading carbohydrates, increasing porosity and surface area.…”

Section: Soda (Or Alkali) Ligninmentioning

confidence: 99%

Catalytic Processes For Lignin Valorization into Fuels and Chemicals (Aromatics)

Ventura

Dómine

Chávez-Sifontes

2019

CCAT

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Valorization of lignocellulosic biomass becomes a sustainable alternative against the constant depletion and environmental problems of fossil sources necessary for the production of chemicals and fuels. In this context, a wide range of renewable raw materials can be obtained from lignocellulosic biomass in both polymeric (i.e. cellulose, starch, lignin) and monomeric (i.e. sugars, polyols, phenols) forms. Lignin and its derivatives are interesting platform chemicals for industry, although mainly due to its refractory characteristics its use has been less considered compared to other biomass fractions. To take advantage of the potentialities of lignin, it is necessary to isolate it from the cellulose/ hemicellulosic fraction, and then apply depolymerization processes; the overcoming of technical limitations being a current issue of growing interest for many research groups. In this review, significant data related to the structural characteristics of different types of commercial lignins are presented, also including extraction and isolation processes from biomass, and industrial feedstocks obtained as residues from paper industry under different treatments. The review mainly focuses on the different depolymerization processes (hydrolysis, hydrogenolysis, hydrodeoxygenation, pyrolysis) up to now developed and investigated analyzing the different hydrocarbons and aromatic derivatives obtained in each case, as well as the interesting reactions some of them may undergo. Special emphasis is done on the development of new catalysts and catalytic processes for the efficient production of fuels and chemicals from lignin. The possibilities of applications for lignin and its derivatives in new industrial processes and their integration into the biorefinery of the future are also assessed.

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Section: Soda (Or Alkali) Ligninmentioning

confidence: 99%

Catalytic Processes For Lignin Valorization into Fuels and Chemicals (Aromatics)

Ventura

Dómine

Chávez-Sifontes

2019

CCAT

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“…The main pretreatment methods that have been used recently are grinding/milling (Kumar, Barrett, Delwiche, & Stroeve, 2009), alkali treatment (Choi et al, 2013;Ferrer, Byers, Sulbarán-de-Ferrer, Dale, & Aiello, 2000;Yoo, Nghiem, Hicks, & Kim, 2011;Zheng, Zhao, Xu, & Li, 2014), acid treatment (Jacobsen & Wyman, 2000; J. S. Kim, Lee, & Torget, 2001), organosolv treatment (K. Zhang, Pei, & Wang, 2016; X. Zhao, Li, Wu, & Liu, 2017;You, Li, Lei, Xing, & Jiang, 2017;Yu et al, 2014;Zhou et al, 2016), steam/steam explosion (K. Z.…”

Section: Introductionmentioning

confidence: 99%

“…The main pretreatment methods that have been used recently are grinding/milling (Kumar, Barrett, Delwiche, & Stroeve, ), alkali treatment (Choi et al, ; Ferrer, Byers, Sulbarán‐de‐Ferrer, Dale, & Aiello, ; Yoo, Nghiem, Hicks, & Kim, ; Zheng, Zhao, Xu, & Li, ), acid treatment (Jacobsen & Wyman, ; J. S. Kim, Lee, & Torget, ), organosolv treatment (K. Zhang, Pei, & Wang, ; X. Zhao, Li, Wu, & Liu, ; You, Li, Lei, Xing, & Jiang, ; Yu et al, ; Zhou et al, ), steam/steam explosion (K. Wang, Jiang, Xu, & Sun, ; Z. H. Liu & Chen, ), hot water/autohydrolysis (Garrote, Dominguez, & Parajo, ; Timung et al, ; Vázquez, Alonso, Domínguez, & Parajó, ), ionic liquid treatment (Brandt et al, ; C. Li et al, ), biological treatment (Kumar et al, ; Sindhu, Binod, & Pandey, ; Zeng, Singh, & Chen, ), and so on. Each pretreatment varies widely in terms of its effects on the physical and chemical characteristics of lignocellulosic biomass (Alvira, Tomás‐Pejó, Ballesteros, & Negro, ).…”

Section: Introductionmentioning

confidence: 99%

Lignocellulosic biomass to biofuels and biochemicals: A comprehensive review with a focus on ethanol organosolv pretreatment technology

Zhou

Lei

et al. 2018

Biotech & Bioengineering

137

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Lignocellulosic biomass is one of the potential feedstocks to produce second-generation cellulosic ethanol and biochemicals. To enhance the enzymatic digestibility of lignocellulosic biomass for efficient enzymatic saccharification, a variety of pretreatment methods have been studied. Among these, organosolv pretreatment using ethanol is a promising pretreatment method owing to its inherent advantages, such as low solvent cost, lack of toxicity, the ability to retain most cellulose fraction in substrates for enzymatic hydrolysis, coproduction of high-purity lignin and hemicellulosic sugars, easy solvent recovery, and reuse. In this review, the research progress regarding different types of ethanol organosolv pretreatment processes has been summarized in terms of methods, substrate properties, reaction mechanisms, delignification kinetic as well as the impact of pretreatment methods on the enzymatic digestibility. Attempts are also made to provide insights into the complete utilization of lignocellulosic biomass to achieve high potential revenues. Though some ethanol organosolv processes have been studied or are being developed towards commercialization, ethanol organosolv pretreatment is still facing some challenges. Finally, the direction for future work is given to develop a proper ethanol organosolv pretreatment for commercialization.

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Optimizing Ammonia Pressurization/Depressurization Processing Conditions to Enhance Enzymatic Susceptibility of Dwarf Elephant Grass

Cited by 2 publications

References 27 publications

Catalytic Processes For Lignin Valorization into Fuels and Chemicals (Aromatics)

Catalytic Processes For Lignin Valorization into Fuels and Chemicals (Aromatics)

Lignocellulosic biomass to biofuels and biochemicals: A comprehensive review with a focus on ethanol organosolv pretreatment technology

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