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A novel alkaline oxidation pretreatment for spruce, birch and sugar cane bagasse

Alkaline oxidation pretreatment was developed for spruce, birch and sugar cane bagasse. The reaction was carried out in alkaline water solution under 10 bar oxygen pressure and at mild reaction temperature of 120 – 140 °C. Most of the lignin was solubilised by the alkaline oxidation pretreatment and an easily hydrolysable carbohydrate fraction was obtained. [...]

Consider the Ascidean

It is the cellulose, the protein, and the Omega-3 fatty acids in the ascidiacea that is the cause for its many uses. – Its mantle consists of cellulose, which is a collection of sugars. When cellulose is cleaved, one can obtain ethanol. And ethanol can be used for biofuel in cars. The animal’s body consists [...]

A review of cellulosic biofuel commercial-scale projects in the United States

In contrast to a few years ago, when cellulosic ethanol via enzymatic hydrolysis was the only widely recognized technology for commercially producing cellulosic biofuels, a diversity of approaches are currently under commercial development. While no commercial-scale (≥20 million gallons per year) cellulosic biofuel facilities are operating at present, at least ten biorefinery projects employing six [...]

Scientists create low-lignin plants with improved potential for biofuel production

Scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have created a new enzyme that effectively “masks” the synthetic precursors of lignin, a plant cell wall component that makes plant biomass particularly difficult to break down. When it was expressed in plants, this enzyme substantially reduced lignin content in the cell wall and [...]

Petroleum refiners get out the old fear-mongering playbook for attack on Renewable Fuel Standard

Retracting from the RFS is not what our economy needs. This article presents the facts and issues in this debate. Petroleum refiners get out the old fear-mongering playbook for attack on Renewable Fuel Standard : Biofuels Digest NB: I would add that, if anything, the RFS should be expanded to allow synthetic fuels. These are [...]

Congressman Introduces Phantom Fuel Reform Act

Representative Jeff Flake (R-Ariz.) has introduced the Phantom Fuel Reform Act (H.R. 6047) to reform an Environmental Protection Agency (EPA) regulation that he said adds millions of dollars each year to the cost of energy production.Under current law and based on annual EPA estimates, U.S. refiners are required to blend millions of gallons of cellulosic [...]

Design of Cellulose Dissolving Ionic Liquids Inspired by Nature

The design of an ionic liquid that has the ability to dissolve cellulose has been attempted from the viewpoint of a cellulase. N,N-diethyl-N-(2-methoxyethyl)-N-methylammonium alanine ([N221ME][Ala]) is a good solvent for cellulose. Dissolution in [N221ME][Ala] converts the crystalline structure of cellulose from Type I to II, which is known to be a form easily digested by cellulases. [...]

Another Federally Backed Renewable Energy Project Tanks: Range Fuels (Bush II Era Grants/Obama Loan Guarantees)

In total, the project received more than $160 million in investor financing, plus $162.25 million in government commitments. On the government tab, a $76 million DOE grant in 2007, the aforementioned loan guarantee, and a $6.25 state grant. Overall, the DOE released $43.6 million of the project funds, before suspending payments earlier this year and [...]

Maize gene enhances plants’ potential for biofuel production

Transferring a maize gene into other types of plants can enhance their potential for biofuel production, researchers report. George Chuck and colleagues transferred the maize gene Corngrass1 (Cg1) into a variety of plants including switchgrass, which is commonly used to produce biofuel. The leaves of the Cg1-expressing plants became structurally and biochemically similar to juvenile [...]

Parallel production of biodiesel and bioethanol in palm-oil-based biorefineries: life cycle assessment on the energy and greenhouse gases emissions

The main objective of this life cycle assessment (LCA) study is to determine the environmental consequences of the inclusion of second-generation biofuels (bioethanol from palm oil biomass) toward current palm oil biodiesel production through a ‘seed-to-wheel’ LCA analysis. Their energy and greenhouse gas (GHG) emission indicators are evaluated with consequential approach for system delimitation. Although [...]