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101 Results for 'Biobased & renewable chemicals & fuels'
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Technology
Unleashing Biomass Sugars Using Bromine Salt
Methods to produce bioethanol from cornstarch or sugarcane are inadequate to meet the global demand for renewable fuels. To be sustainable, biofuel production should rely on abundant, cheap, inedible ...
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Xuejun Pan, Li Shuai | P110209US02
Technology
Efficient, Lower Cost Chemical Transformation of Lignocellulosic Biomass into Fuels and Chemicals
Cellulosic biomass has tremendous potential as a renewable resource for the production of fuels and chemicals. It is especially promising because it is inexpensive and readily available from cro...
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Ronald Raines, Joseph Binder | P08210US
Technology
Green Method for Producing 1,5-Pentanediol Slashes Catalyst Cost 10,000-fold
Commercial interest in the production of commodity chemicals from renewable sources continues to surge. Among these chemicals, α,ω-diols are particularly attractive because of the high market prices...
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George Huber, James Dumesic, Kevin Barnett, Zach Brentzel | P160103US01
Technology
Industrial Streptomyces with Capability to Grow on Cheap and Abundant Cellulose
Many species of Streptomyces are used industrially in the production of medicines, proteins and other fine commodity chemicals. However, the vast majority must be grown on high-cost glucose feedstock ...
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Brian Fox, Robert Stankey, Cameron Currie, Emily Beebe | P160252US02
Technology
Zip-Lignin™ Assay: An Analysis and Validation Tool
To produce pulp from wood, harsh chemicals are applied during cooking and bleaching mainly because lignin is tough to break down. To make it easier to degrade, Wisconsin researchers discovered how che...
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John Ralph, Steven Karlen, Fachuang Lu, Dharshana Padmakshan | P150118US02
Technology
Method To Produce Furandicarboxylic Acid (Fdca) From 5-Hydroxymethylfurfural (Hmf)
The platform molecule HMF is derived from biomass and converted into a variety of downstream products. One of the most important of these is FDCA, which is used as a monomer in the production of fiber...
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James Dumesic, Ali Hussain Motagamwala | P160074US01
Technology
Modified Cyanobacteria for Competitive Sugar Production
Cyanobacteria are photosynthetic microorganisms capable of producing far more sugar per acre than corn, sugarcane or sugar beet. Unlike other bacteria and yeast, cyanobacteria use atmospheric CO2 as t...
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Brian Pfleger, Andrew Markley | P160039US02
Technology
Platinum-Free Catalysts for Fuel Cells
Fuel cells and other types of electrochemical cells rely on platinum cathodes to drive oxygen reduction. Although efficient, platinum cathodes are expensive given the element’s relative scarcity. On...
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Shannon Stahl, James Gerken, Colin Anson | P140274US02
Technology
“Green” Catalytic Systems for Solvent-Free Alcohol Oxidations
Catalysts for organic chemical transformations, in particular those used for alcohol oxidations, are considered to be valuable commodities for the bulk, fine chemical as well as pharmaceutical industr...
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Robert McGaff | T150040US03
Technology
Modified Yeast to Boost Biofuel Yields
Producing biofuel on an industrial scale requires efficient fermentation of cellulosic plant material. Glucose and xylose are two of the most abundant sugars found in biomass. The yeast most commonly ...
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Trey Sato, Jeff Piotrowski | P140199US02
Technology
Measuring Lignin in Corn Stalks
The lignin in corn stalks makes it difficult to process for biomass and harder for animals to digest. Levels are especially high in the tough outer ‘rind’ and vascular bundles of the stem.
For th...
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Edgar Spalding, Sven Heckwolf | P140381US01
Technology
Solar Cells for Reducing HMF to Valuable Platform Chemicals
A biomass-derived chemical called HMF (5-hydroxymethylfurfural) can be turned into a variety of industrial molecules. For example, it can be reduced to BHMF or 2,5-bis(hydroxymethyl) furan, an importa...
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Kyoung-Shin Choi, John Roylance, Stephen Kubota | P150141US01
Technology
High Yield Method to Produce LGO from Biomass
Levoglucosenone (LGO) is a highly dehydrated sugar typically derived from cellulose. It is an important, non-petroleum building block chemical with potential uses in a wide range of industrial process...
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George Huber, Fei Cao, James Dumesic, Thomas Schwartz | P150101US01
Technology
Modified Yeast with Enhanced Tolerance for GVL Biomass Solvent
Gamma-valerolactone (GVL) is an inexpensive solvent derived from biomass that can be used to break apart tough lignocellulose into fermentable sugars including xylose and glucose. GVL-based techniques...
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Jeff Piotrowski, Trey Sato, Chad Myers | P140430US02
Technology
Solar Cells Turn HMF to Valuable Platform Molecules
Photoelectrochemical cells (PECs) use solar energy to produce fuels, much as nature does through photosynthesis. In a typical PEC, fuels are formed by reduction reactions at the cathode. For example, ...
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Kyoung-Shin Choi, Hyun Gil Cha | P150132US01
Technology
Grass Modified for Easier Bioprocessing
Manufacturing paper and producing biofuels is difficult because the lignin in plant cell walls is tough to degrade. Current techniques are energy intensive and use harsh chemicals. In the case of biof...
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John Ralph, Curtis Wilkerson, Saunia Withers, John Sedbrook | P120040US02
Technology
More Efficient Water-Splitting Cells
N-type bismuth vanadate (BiVO4) has emerged as a promising photoanode for use in solar water-splitting cells given its favorable light absorption and conduction band characteristics. To date, however,...
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Kyoung-Shin Choi, Tae Woo Kim | P140325US01
Technology
Visible-Range Sunlight Drives CO2 Reduction Process for Cheaper Syngas
In a reverse water gas shift reaction, CO2 is reduced to water and carbon monoxide (CO). The CO generated by this reaction is a key component in synthesis gas, also called syngas, which can be convert...
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George Huber, Aniruddha Upadhye, Insoo Ro, Maria Isabel Tejedor-Anderson, Hyung Ju Kim | P140115US01
Technology
Coating Extends Life of Catalytic System
Biomass processing and many other industrial catalytic reactions are performed in hot, liquid conditions. These hydrothermal reactions may be carried out at elevated temperatures (e.g., 200 degrees C)...
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James Dumesic, Yomaira Pagan-Torres, Jeffrey Elam, Christopher Marshall, Joseph Libera | P140345US01
Technology
Preparing HMF from Biomass in Polar Aprotic Solvents
HMF (5-hydroxymethyl furfural) is a highly sought renewable compound that can be used to produce bulk and value-added chemicals. Such chemicals include FDCA, which is useful in the polymer industry, a...
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James Dumesic, George Huber, Ronen Weingarten | P140138US01
Technology
One-Step Process Turns Biomass into Hydrocarbon Building Blocks
Much research has focused on transforming biomass sugars into building block molecules like hydroxymethylfurfural (HMF) and furfural. HMF and furfural are versatile substitutes for a range of chemical...
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Xuejun Pan, Li Shuai | P110018US02
Technology
Producing Linear Alpha Olefins from Biomass
Linear alpha olefins (LAOs) are valuable commodity chemicals traditionally derived from petroleum. They are versatile building blocks for making a range of chemical products like polyethylene, synthet...
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James Dumesic, Dong Wang, David Martin Alonso, Sikander Hakim | P130275US01
Technology
Concentrated C5 and C6 Sugars from Biomass
Widespread production of sustainable fuels and chemicals will require cost-effective methods for breaking down biomass into its constituent sugars. Attaining high yields of concentrated C5 and C6 carb...
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James Dumesic, David Martin Alonso, Jeremy Luterbacher | P140075US01
Technology
Powerful New Enzyme for Transforming Biomass
Converting plant cellulose and hemicellulose into fermentable sugars is a major bottleneck in the biofuel industry. Chemical pretreatment and enzyme hydrolysis (breakdown) usually are required.
Amon...
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Brian Fox, Christopher Bianchetti, Taichi Takasuka | P120371US02
Technology
Modified Yeast Ferments Biomass Xylose
Producing biofuel on a useful scale requires efficient fermentation of cellulosic plant material. The sugars glucose and xylose are the most abundant carbohydrates found in hemicellulose. The yeast mo...
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Trey Sato | P120307US01