Green Car Congress

JANUARY 25, 2012

Researchers at the University of Wisconsin led by Dr. Jim Dumesic report the conversion of the hemicellulose fraction of lignocellulosic biomass to furfural and levulinic acid using biphasic reactors with alkylphenol solvents in a new paper in the journal ChemSusChem. Source: Gürbüz et al. Click to enlarge. Earlier post.).

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Wisconsin Convert Fuel Renewable 186

Green Car Congress

OCTOBER 3, 2012

A team from the University of Wisconsin-Madison, University of Massachusetts-Amherst and Gwangju Institute of Science and Technology of South Korea has demonstrated the feasibility of using proton-exchange-membrane (PEM) reactors electrocatalytically to reduce biomass-derived oxygenates into renewable fuels and chemicals. —Green et al.

Convert 210

Convert Fuel South Korea Massachusetts 210

Green Car Congress

NOVEMBER 8, 2021

The funded projects include: University of Wisconsin Madison for “Efficiency Mixing Controlled Compression Ignition Combustion of Propane DME Blends”. As an energy-dense, cost-effective means to transport and store renewable hydrogen. Oberon Fuels, the first company to produce renewable DME (rDME) in the US, is a supporting partner.

Waste 186

Waste Cleaner Emissions Renewable Wisconsin 186

Green Car Congress

OCTOBER 9, 2014

Vertimass LLC of Irvine, California will receive up to $2 million to commercialize technology to convert ethanol into diesel fuel, gasoline, and jet fuel blend stocks compatible with the current transportation fuel infrastructure. The University of Wisconsin of Madison, Wisconsin will receive up to $3.3 Earlier post.).

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Wisconsin Atlanta Minnesota Convert 225

Green Car Congress

SEPTEMBER 26, 2010

Researchers from the University of Science and Technology of China and Chinese Academy of Sciences have demonstrated the conversion of levulinic acid (LA) to γ-valerolactone (GVL) by heterogeneous catalysts without using external hydrogen. A paper on their work appeared online 24 September in the journal ChemSusChem. Click to enlarge.

Conversion 170

Conversion Hydrogen Fuel Wisconsin 170

Green Car Congress

SEPTEMBER 7, 2016

The APR technology was discovered at the University of Wisconsin in 2001 by Virent’s co-founder and chief technology officer, Dr. Randy Cortright. Some of the reactions in the APR step include: reforming to generate hydrogen; dehydrogenation of alcohols/hydrogenation of carbonyls; deoxygenation reactions; hydrogenolysis; and.

Renewable 150

Renewable Companies Fuel Wisconsin 150

Green Car Congress

DECEMBER 8, 2017

Although methane can be directly converted to methanol using molecular oxygen under mild conditions in the gas phase, the process is either stoichiometric (and therefore requires a water extraction step) or is too slow and low-yielding to be practical.

Conversion 170

Conversion F-150 Wisconsin Gas 170

Green Car Congress

MARCH 16, 2010

Materials scientists at the University of Wisconsin-Madison have discovered a phenomenon—the direct conversion of mechanical energy to chemical energy—which they termed the piezoelectrochemical (PZEC) effect. They then applied the PZEC effect to generate hydrogen and oxygen via direct water splitting. Click to enlarge.

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Water Waste Hydrogen Energy 199

Green Car Congress

OCTOBER 9, 2014

The goal is to create an efficient, stable photo-electrochemical cell capable of converting sunlight into hydrogen and other renewable fuels at elevated temperatures of 500°C to 700°C. Maximizing solar-to-fuel conversion efficiency in photo-electrochemical cells.

Renewable 225

Renewable Solar Zinc Air Energy 225

Green Car Congress

MAY 4, 2010

Researchers at the University of Wisconsin-Madison have demonstrated that it is possible to achieve good yields of renewable hydrocarbons in the molecular weight range suitable for jet and diesel fuel applications through the processing of C 9 alkenes produced from biomass-derived ? Source: Alonso et al. Click to enlarge. Earlier post.).

Diesel 170

Diesel Renewable Wisconsin Hydrogen 170

Green Car Congress

JULY 20, 2011

The new pretreatment approach uses ammonia (NH 3 ) to reorganize the hydrogen bond network within cellulose, resulting in up to a 5-fold increase in saccharification rates. Dale (2011) Restructuring the Crystalline Cellulose Hydrogen Bond Network Enhances Its Depolymerization Rate. Credit: ACS, Chundawat et al. Click to enlarge.

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Hydrogen Conversion Production Michigan 236

Green Car Congress

MAY 18, 2019

Researchers from the University of Wisconsin Madison and ExxonMobil Research and Engineering have devised a two-stage process by which an alcohol such as ethanol or 1-butanol can be converted with high yields into distillate-range ethers and olefins by combining Guerbet coupling (the coupling of two alcohol molecules) and intermolecular dehydration.

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Convert Diesel Range Conversion 249

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MARCH 23, 2010

and Shell have successfully started production at the first demonstration plant converting plant sugars into gasoline and gasoline blend components, rather than ethanol. Virent Energy Systems, Inc. Earlier post.)

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Production Gasoline Wisconsin Fuel Economy 230

Green Car Congress

APRIL 21, 2010

Researchers at the University of Wisconsin, led by Dr. James Dumesic, have developed a process to convert aqueous solutions of GVL to liquid alkenes in the molecular weight range appropriate for drop-in replacement transportation fuels by using an integrated catalytic system that does not require an external source of hydrogen or precious metal catalysts. (..)

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Gasoline Diesel Wisconsin Fuel 170

Cars That Think

OCTOBER 15, 2023

Deuterium and tritium are hydrogen isotopes that fuse at lower temperatures and release more energy than other reactions. Gerald Kulcinski, University of Wisconsin A new breed of maverick fusioneers is aiming to solve the neutron problem. TAE’s approach calls for fueling its reactions with hydrogen and boron, a mix also known as p-B11.

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Fusion Hydrogen Wisconsin Energy 142

Green Car Congress

MAY 15, 2021

The LT team will develop a gas fermentation process that leverages affordable, renewable hydrogen to capture and fix CO 2 directly into valuable fuels and chemicals. University of Wisconsin-Madison. At commercial scale, the inputs to the proposed “carbon refinery” process are carbon-free renewable energy, water, and CO 2.

Carbon 303

Carbon Production Conversion Universal 303

Green Car Congress

JUNE 26, 2021

Madison, Wisconsin). Highly Efficient Low-Thermal-Budget Hydrogen and Chemical Co-Production via an Electrochemical Activation of Propane, $100,000. NEL Hydrogen (Wallingford, Connecticut). DME as a Renewable Hydrogen Carrier: Innovative Approach to Renewable Hydrogen Production, $1,500,000. Convergent Science Inc.

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Commercial Energy Albuquerque New York 170

Green Car Congress

SEPTEMBER 22, 2009

Install photovoltaic capacity to generate “green” hydrogen: Install multiple PV modules at its Central Maintenance Facility in Hayward. Combined with AC Transit’s already-installed solar capacity, this solar installation will produce the renewable electricity equivalent to what will be required to produce 180 kg/day of green hydrogen.

Emissions 256

Emissions Gas Energy Maintenance 256

Green Car Congress

AUGUST 15, 2010

Researchers at the University of Wisconsin–Madison led by James Dumesic have developed a catalytic process to convert cellulose into liquid hydrocarbon fuels (diesel and gasoline), using a cascade strategy to achieve the progressive removal of oxygen from biomass, allowing the control of reactivity and facilitating the separation of products.

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Convert Gasoline Diesel Renewable 244

Green Car Congress

JUNE 17, 2013

The new MIT proces converts furfural into GVL via a series of cascading (domino-like) reactions catalyzed by zeolites with Lewis and Brønsted acid sites. Using the traditional GVL manufacturing method, cellulose and hemicellulose are converted into levulinic acid, which has a chain of five carbon atoms. Credit: Bui et al.

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MIT Hydrogen Convert Water 170

Green Car Congress

NOVEMBER 11, 2014

In the study, they converted biomass-derived ?-valerolactone Much effort has recently gone into pathways to produce hydrocarbons with extended carbon chains by the hydrogenation of carbohydrate derivatives. A portion of the butenes are hydrogenated and isomerized to produce isobutane. valerolactone using a solid acid catalyst.

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Gasoline China Fuel Hydrogen 256

Green Car Congress

AUGUST 26, 2009

Selected projects, by size of award, are: State of Wisconsin’s Wisconsin Clean Transportation Program. The project will convert local landfill gas (LFG), a renewable fuel source, to compressed natural gas and develop five CNG fueling stations throughout the metro-Atlanta area. Total DOE award: $14,994,183.

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Alternative Fuels Clean Cleaning Grant 236

Green Car Congress

JANUARY 3, 2013

A team of researchers led by James Dumesic and George Huber, both now at the University of Wisconsin-Madison, have demonstrated how C 5 sugars derived from hemicellulose can be converted into a high-quality petroleum refinery feedstock via a four-step catalytic process. Source: Olcay et al. Click to enlarge. hydrocycloaddition).

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Convert Renewable Hydrogen Carbon 268

Green Car Congress

MAY 11, 2010

Valeric biofuels are produced by acid hydrolysis of lignocellulose to levulinic acid, followed by its hydrogenation to GVL, and its hydrogenation to valeric acid and subsequent esterification. GVL is produced by the hydrogenation of levulinic acid derived by the simple acid hydrolysis of lignocellulosic feedstock.

Hydrogen 170

Hydrogen Gasoline Convert Wisconsin 170

Green Car Congress

JANUARY 12, 2011

Butene can be converted into liquid fuels by oligomerization reactions. A team at the University of Wisconsin-Madison led by Dr. James Dumesic has developed an improved, streamlined process for the conversion of biomass to butyl esters and γ-valerolactone (GVL). The red arrows represent streams that are recycled.

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Conversion Convert Water Wisconsin 199

Green Car Congress

JANUARY 4, 2011

HCL CleanTech’s concentrated hydrochloric acid-driven hydrolysis technology builds on a proven industrial process, improving the economics of converting lignocellulosic biomass into refined sugars, de-acidified lignin and tall oils. The grant supports almost half of the $2.1 million total project cost.

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Grant North Carolina Wisconsin 199

Green Car Congress

JULY 17, 2015

He was formerly with the University of Wisconsin and Rockwell International, and holds a Ph.D. There are trucks and buses being converted commercially today. The Hydrogen car and its issues. Conventionally, this fuel is derived by splitting hydrocarbon molecules, which emits CO 2 as well as the hydrogen.

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PHEV Plug-in Renewable Energy 150