scholarly journals A unique pathway to platform chemicals: aldaric acids as stable intermediates for the synthesis of furandicarboxylic acid esters

2020 ◽  
Vol 22 (23) ◽  
pp. 8271-8277
Author(s):  
Nicolaas van Strien ◽  
Sari Rautiainen ◽  
Martta Asikainen ◽  
David A. Thomas ◽  
Juha Linnekoski ◽  
...  
Keyword(s):  
Efficient Production ◽  
Platform Chemicals ◽  
Novel Method ◽  
Furandicarboxylic Acid ◽  
Aldaric Acids ◽  
Acid Esters

A novel method for the efficient production of furandicarboxylic acid from sugar diacids by acid-catalysed dehydration.

scholarly journals Synthesis of Furandicarboxylic Acid Esters From Nonfood Feedstocks Without Concomitant Levulinic Acid Formation

ChemSusChem ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 1460-1468 ◽  
Author(s):  
Frits van der Klis ◽  
Jacco van Haveren ◽  
Daan S. van Es ◽  
Johannes H. Bitter
Keyword(s):  
Levulinic Acid ◽  
Acid Formation ◽  
Furandicarboxylic Acid ◽  
Acid Esters

Renewable platform chemicals: Thermochemical study of levulinic acid esters

2018 ◽  
Vol 659 ◽  
pp. 213-221 ◽  
Author(s):  
Vladimir N. Emel’yanenko ◽  
Emrah Altuntepe ◽  
Christoph Held ◽  
Andrey A. Pimerzin ◽  
Sergey P. Verevkin
Keyword(s):  
Levulinic Acid ◽  
Thermochemical Study ◽  
Platform Chemicals ◽  
Acid Esters

scholarly journals Selective production of bio-based aromatics by aerobic oxidation of native soft wood lignin in tetrabutylammonium hydroxide

RSC Advances ◽  
2020 ◽  
Vol 10 (33) ◽  
pp. 19199-19210 ◽  
Author(s):  
Takashi Hosoya ◽  
Kohei Yamamoto ◽  
Hisashi Miyafuji ◽  
Tatsuhiko Yamada
Keyword(s):  
Aqueous Solution ◽  
Aerobic Oxidation ◽  
Efficient Production ◽  
Tetrabutylammonium Hydroxide ◽  
Platform Chemicals

Aerobic oxidation of native soft wood lignin in an aqueous solution of Bu4NOH facilitates efficient production of vanillin (4-hydroxy-3-methoxybenzaldehyde), which is one of the platform chemicals in industry.

scholarly journals Environmental sustainability assessment of HMF and FDCA production from lignocellulosic biomass through life cycle assessment (LCA)

Holzforschung ◽  
2018 ◽  
Vol 73 (1) ◽  
pp. 105-115 ◽  
Author(s):  
Sara Bello ◽  
Iana Salim ◽  
Pedro Méndez-Trelles ◽  
Eva Rodil ◽  
Gumersindo Feijoo ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Sustainability ◽  
Energy Demand ◽  
Sustainability Assessment ◽  
Life Cycle Inventory Data ◽  
Platform Chemicals ◽  
Lignocellulosic Feedstock ◽  
High Production ◽  
Furandicarboxylic Acid

Abstract 2,5-Furandicarboxylic acid (FDCA) and 5-hydroxymethylfurfural (HMF) are top biomass-based platform chemicals with promising potential and an essential part of the future of green chemistry. HMF can be obtained mainly from fructose or glucose. Lignocellulosic glucose has a high production potential from not edible biomass. In the present paper life cycle assessment (LCA) was performed aiming at a better understanding of the environmental performance of the production of FDCA and HMF from lignocellulosic feedstock. Two case studies from the literature were modeled to obtain the life cycle inventory data. The production routes to FDCA comprise seven different process sections: hydrolysis, HMF synthesis, HMF recovery, FDCA synthesis, FDCA flash separation, FDCA purification and HMF boiler. By means of the LCA methodology, solvents such as dimethyl sulfoxide (DMSO) and dichloromethane (DCM), together with the energy demand, were found to be clear critical points in the process. Two scenarios were in focus: Scenario 1 considered the purification of FDCA through crystallization, whereas in Scenario 2 purification was performed through distillation.

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

2019 ◽  
Vol 8 (1) ◽  
pp. 20-40 ◽  
Author(s):  
Maria Ventura ◽  
Marcelo E. Domine ◽  
Marvin Chávez-Sifontes
Keyword(s):  
Lignocellulosic Biomass ◽  
Raw Materials ◽  
Structural Characteristics ◽  
Paper Industry ◽  
Efficient Production ◽  
Renewable Raw Materials ◽  
Platform Chemicals ◽  
Wide Range ◽  
Fuels And Chemicals ◽  
Catalytic Processes

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.

scholarly journals Establishment of a novel method for the production of chimeric mouse embryos using oil droplets

2019 ◽  
Author(s):  
Hiroyuki Imai ◽  
Soichiro Tsuda ◽  
Tokuko Iwamori ◽  
Etsuro Ono
Keyword(s):  
Stem Cells ◽  
Embryonic Stem ◽  
Efficient Production ◽  
Chimeric Mouse ◽  
The Novel ◽  
Aggregation Method ◽  
Injection Method ◽  
Novel Method ◽  
Conventional Methods ◽  
Genetically Modified Animals

AbstractThe production of chimeric animals is frequently necessary for the constructing genetically modified animals, and has gained popularity in regenerative medicine in the recent years for the reconstruction of xenogeneic organs. The aggregation method and the injection method are generally used for producing chimeric mice. In the aggregation method, the chimeras are produced by co-culturing embryos and stem cells, and keeping them physically adhered. In the injection method, the chimeras are produced by injecting stem cells into the zona pellucida using microcapillaries. These methods only focus on the generation of chimeric animals, and are not expected to produce reproducible results or allow quantitative evaluation.This study aimed to establish a novel method for producing chimeric embryos via droplets for improving on the conventional methods that are used for producing chimeric embryos. In this study, the embryonic stem cells and embryos were successfully isolated in the droplets, and the emergence of chimeric embryos was confirmed by co-culture for 6 hours. By this method, the control and operability of stem cell numbers can be regulated, and the method allows better reproducibility and quantification during the production of chimeric embryos. In addition to the conventional methods for producing chimeric embryo, the novel method described herein could be employed for the efficient production of chimeric animals.

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