Confined Synthesis of BiVO4 Nanodots and ZnO Clusters Co-decorated 3DOM TiO2 for Formic Acid Production from Xylan-based Hemicellulose Photorefinery

2021 ◽  
Author(s):  
Heng Zhao ◽  
Xinti Yu ◽  
Guichun Hu ◽  
Na Zhong ◽  
Zhi-Yi Hu ◽  
...  
Keyword(s):  
Formic Acid ◽  
Acid Production ◽  
Value Added ◽  
Chemical Production ◽  
Ternary Composite ◽  
Promising Strategy ◽  
Ordered Macroporous ◽  
Zno Clusters

Biomass photorefinery provides a promising strategy for value-added chemical production from natural feedstocks. Herein, we designed and fabricated three-dimensionally ordered macroporous (3DOM) ternary composite for the photoreforming of hemicellulose and...

Development of Photocatalytic Conversion of Glucose to Value-Added Chemicals by Supported-TiO2 Photocatalysts

2016 ◽  
Vol 839 ◽  
pp. 39-43
Author(s):  
Kamonchanok Roongraung ◽  
Navadol Laosiripojana ◽  
Surawut Chuangchote
Keyword(s):  
Photocatalytic Activity ◽  
Formic Acid ◽  
Gluconic Acid ◽  
Energy Resource ◽  
Value Added ◽  
Building Blocks ◽  
Microwave Method ◽  
Chemical Production ◽  
Sem Images ◽  
Simple Method

Biomass is an important renewable energy resource, which is used to replace the petroleum to produce chemicals. Glucose is a monomer of cellulose, which is the main component of biomass. In this work, conversions of glucose to value-added chemical by a simple method have been reported. TiO2 photocatalysts were fabricated by sol-microwave method. Value-added chemical production was successfully carried out via photocatalytic conversion of glucose with TiO2 photocatalysts. Arabinose, xylitol, gluconic acid, and formic acid were produced with photocatalytic reaction of TiO2 under UVA irradiation. The value-added products (gluconic acid, arabinose, and xylitol) can generally be further used as building blocks for biorefinery production, pharmaceutical production, and food industry. In the conventional sol-microwave method, the agglomeration of fabricated TiO2 particle was a limitation of photocatalytic activity. Therefore, the modification of TiO2 fabrication by use of zeolite as a TiO2 support was applied to increase efficiency of photocatalytic conversion of glucose and its selectivity. The effect of TiO2 dosage on zeolite (TiO2/zeolite) on photocatalytic activity and yield of products was monitored. The results from scanning electron microscopy (SEM) images indicated that zeolite supporter reduced agglomeration of spherical TiO2 particles. The well distribution of TiO2 particles on surface of zeolite particles could be observed in 15%TiO2/zeolite. It was found that the highest photocatalytic conversion of glucose (77.3%) was obtained from the use of 15%TiO2/zeolite as photocatalyst. The yields of gluconic acid, arabinose, xylitol, and formic acid were 8.6, 26.0, 3.7, and 33.89%, respectively.

Formic acid production using a microbial electrolysis desalination and chemical-production cell

2017 ◽  
Vol 243 ◽  
pp. 118-125 ◽  
Author(s):  
Yaobin Lu ◽  
Haiping Luo ◽  
Kunpeng Yang ◽  
Guangli Liu ◽  
Renduo Zhang ◽  
...  
Keyword(s):  
Formic Acid ◽  
Acid Production ◽  
Chemical Production ◽  
Microbial Electrolysis ◽  
Production Cell

scholarly journals Formation of Formic Acid from Glucose with Simultaneous Conversion of Ag2O to Ag under Mild Hydrothermal Conditions

2021 ◽  
Author(s):  
Runtian He ◽  
Jing Xu ◽  
Teng Ma ◽  
Jiong Cheng ◽  
Binbin Jin
Keyword(s):  
Formic Acid ◽  
Value Added ◽  
Low Carbon ◽  
Chemical Production ◽  
Hydrothermal Conditions ◽  
Simultaneous Reduction ◽  
Renewable Biomass ◽  
Novel Approach ◽  
Biomass Resources ◽  
Hydrogen Carrier

<p>Formation of formic acid from renewable biomass resources is of great interest since formic acid is a widely used platform chemical and has recently been regarded as an important liquid hydrogen carrier. Herein, a novel approach is reported for the conversion of glucose, the constituent carbohydrate from cellulose fraction of biomass, to formic acid under mild hydrothermal conditions with simultaneous reduction of Ag<sub>2</sub>O to Ag. Results showed that glucose was selectively converted to formic acid with an optimum yield of 40.7% at a mild reaction temperature of 135 for 30 min. In addition, Ag<sub>2</sub>O was used as a solid oxidant for the glucose oxidation, which avoids the use of traditionally dangerous liquid oxidant H<sub>2</sub>O<sub>2</sub>. Furthermore, complete conversion of Ag<sub>2</sub>O to Ag can be achieved. This study not only developed a new method for value-added chemical production from renewable biomass but also explored an alternative low-carbon and energy-saving route for silver extraction and recovery.</p>

scholarly journals Formation of Formic Acid from Glucose with Simultaneous Conversion of Ag2O to Ag under Mild Hydrothermal Conditions

2021 ◽  
Author(s):  
Runtian He ◽  
Jing Xu ◽  
Teng Ma ◽  
Jiong Cheng ◽  
Binbin Jin
Keyword(s):  
Formic Acid ◽  
Value Added ◽  
Low Carbon ◽  
Chemical Production ◽  
Hydrothermal Conditions ◽  
Simultaneous Reduction ◽  
Renewable Biomass ◽  
Novel Approach ◽  
Biomass Resources ◽  
Hydrogen Carrier

<p>Formation of formic acid from renewable biomass resources is of great interest since formic acid is a widely used platform chemical and has recently been regarded as an important liquid hydrogen carrier. Herein, a novel approach is reported for the conversion of glucose, the constituent carbohydrate from cellulose fraction of biomass, to formic acid under mild hydrothermal conditions with simultaneous reduction of Ag<sub>2</sub>O to Ag. Results showed that glucose was selectively converted to formic acid with an optimum yield of 40.7% at a mild reaction temperature of 135 for 30 min. In addition, Ag<sub>2</sub>O was used as a solid oxidant for the glucose oxidation, which avoids the use of traditionally dangerous liquid oxidant H<sub>2</sub>O<sub>2</sub>. Furthermore, complete conversion of Ag<sub>2</sub>O to Ag can be achieved. This study not only developed a new method for value-added chemical production from renewable biomass but also explored an alternative low-carbon and energy-saving route for silver extraction and recovery.</p>

scholarly journals Consolidated bioprocessing of lignocellulose for production of glucaric acid by an artificial microbial consortium

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Chaofeng Li ◽  
Xiaofeng Lin ◽  
Xing Ling ◽  
Shuo Li ◽  
Hao Fang
Keyword(s):  
Acid Production ◽  
Microbial Consortium ◽  
Consolidated Bioprocessing ◽  
High Titer ◽  
Value Added ◽  
Superior Performance ◽  
Glucaric Acid ◽  
Practical Applications ◽  
Work Distribution ◽  
Rut C30

Abstract Background The biomanufacturing of d-glucaric acid has attracted increasing interest because it is one of the top value-added chemicals produced from biomass. Saccharomyces cerevisiae is regarded as an excellent host for d-glucaric acid production. Results The opi1 gene was knocked out because of its negative regulation on myo-inositol synthesis, which is the limiting step of d-glucaric acid production by S. cerevisiae. We then constructed the biosynthesis pathway of d-glucaric acid in S. cerevisiae INVSc1 opi1Δ and obtained two engineered strains, LGA-1 and LGA-C, producing record-breaking titers of d-glucaric acid: 9.53 ± 0.46 g/L and 11.21 ± 0.63 g/L d-glucaric acid from 30 g/L glucose and 10.8 g/L myo-inositol in fed-batch fermentation mode, respectively. However, LGA-1 was preferable because of its genetic stability and its superior performance in practical applications. There have been no reports on d-glucaric acid production from lignocellulose. Therefore, the biorefinery processes, including separated hydrolysis and fermentation (SHF), simultaneous saccharification and fermentation (SSF) and consolidated bioprocessing (CBP) were investigated and compared. CBP using an artificial microbial consortium composed of Trichoderma reesei (T. reesei) Rut-C30 and S. cerevisiae LGA-1 was found to have relatively high d-glucaric acid titers and yields after 7 d of fermentation, 0.54 ± 0.12 g/L d-glucaric acid from 15 g/L Avicel and 0.45 ± 0.06 g/L d-glucaric acid from 15 g/L steam-exploded corn stover (SECS), respectively. In an attempt to design the microbial consortium for more efficient CBP, the team consisting of T. reesei Rut-C30 and S. cerevisiae LGA-1 was found to be the best, with excellent work distribution and collaboration. Conclusions Two engineered S. cerevisiae strains, LGA-1 and LGA-C, with high titers of d-glucaric acid were obtained. This indicated that S. cerevisiae INVSc1 is an excellent host for d-glucaric acid production. Lignocellulose is a preferable substrate over myo-inositol. SHF, SSF, and CBP were studied, and CBP using an artificial microbial consortium of T. reesei Rut-C30 and S. cerevisiae LGA-1 was found to be promising because of its relatively high titer and yield. T. reesei Rut-C30 and S. cerevisiae LGA-1were proven to be the best teammates for CBP. Further work should be done to improve the efficiency of this microbial consortium for d-glucaric acid production from lignocellulose.

Continuous-flow formic acid production from the hydrogenation of CO2 without any base

2021 ◽  
Vol 23 (5) ◽  
pp. 1978-1982
Author(s):  
Zhaofu Zhang ◽  
Shuaishuai Liu ◽  
Minqiang Hou ◽  
Guangying Yang ◽  
Buxing Han
Keyword(s):  
Formic Acid ◽  
Continuous Flow ◽  
Acid Production ◽  
Hydrogenation Of Co2 ◽  
Hydrogenation Of Co

Continuous-flow formic acid production from the hydrogenation of CO2 without any base, and the concentration of formic acid by electrodialysis was tested both offline and online.

Enhancement of formic acid production from CO2 in formate dehydrogenase reaction using nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (111) ◽  
pp. 109978-109982 ◽  
Author(s):  
Young-Kee Kim ◽  
Sung-Yeob Lee ◽  
Byung-Keun Oh
Keyword(s):  
Mass Transfer ◽  
Formic Acid ◽  
Acid Production ◽  
Transfer Rate ◽  
Formate Dehydrogenase ◽  
Mass Transfer Rate ◽  
Liquid Mass ◽  
Dehydrogenase Reaction ◽  
Liquid Mass Transfer ◽  
Mesoporous Nanoparticles

In an enzyme process using a gas substrate, the enhanced gas liquid mass transfer rate of the gas substrate by methyl-functionalized mesoporous nanoparticles could improve the productivity.

A structure–activity relationship study using DFT analysis of Bronsted–Lewis acidic ionic liquids and synergistic effect of dual acidity in one-pot conversion of glucose to value-added chemicals

2018 ◽  
Vol 42 (2) ◽  
pp. 1423-1430 ◽  
Author(s):  
Firdaus Parveen ◽  
Tanmoy Patra ◽  
Sreedevi Upadhyayula
Keyword(s):  
Ionic Liquids ◽  
Synergistic Effect ◽  
Formic Acid ◽  
Levulinic Acid ◽  
Value Added ◽  
One Pot ◽  
Structure Activity ◽  
Acidic Ionic Liquids ◽  
Commercially Important ◽  
Relationship Study

The catalytic conversion of biomass-derived carbohydrates to value-added chemicals, such as 5-hydroxymethylfurfural, levulinic acid, and formic acid, is a commercially important reaction and requires the use of both Lewis and Bronsted acids.

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