For example, we are working with the Renewable Energy Group, Inc. to study the production of biodiesel by fermenting renewable
cellulosic sugars from sources such as agricultural waste.
Gevo, Inc., a NARA partner, successfully adapted its patented technologies to convert
cellulosic sugars derived from wood waste into renewable isobutanol, which was then converted into Gevo's Alcohol - to - Jet (ATJ) fuel.
Not exact matches
Biofuel researchers are working to change that, envisioning a future where
cellulosic ethanol, an alcohol derived from plant
sugars, is as common and affordable at the gas station as gasoline.
And there's a lot of spare
sugar to be found in the
cellulosic materials left behind in crops.
Finding a way of breaking down
cellulosic materials into their constituent
sugars to allow them to be fermented through to bioethanol is a key aim for second - generation biofuel development.
In December last year, the Brazilian Development Bank launched a 1 - billion - real (US$ 481 - million) credit line to stimulate research and development in
cellulosic biofuels and other advanced
sugar - cane technologies.
Mascoma has developed yeast that can be dropped into all
cellulosic ethanol fermentation processes to increase yields by fermenting the full array of
sugars present in
cellulosic fermentations, and by secreting enzymes (cellulases and hemicellulases) that can improve hydrolysis yields.
Simultaneous Co-Fermentation of Mixed
Sugars: A Promising Strategy for Producing
Cellulosic Ethanol, Soo Rin Kim, Suk - Jin Ha, Na Wei, Eun Joong Oh, Yong - Jin, Trends in Biotechnology, http://dx.doi.org/10.1016/j.tibntech.2012.01.005, February 20, 2012.
But to be able to feed
cellulosic biomass directly from nature, the team still needed to break down cellulose into simple
sugars — Zhang and colleagues wanted to learn how to skip that step.
Western Biomass Energy LLC, a subsidiary of Blue
Sugars Corporation (previously KL Energy) reported the major milestone of claiming the first
cellulosic ethanol tax credits under the RFS2 for a 20,069 gallon batch of
cellulosic ethanol produced from bagasse (
sugar cane waste) in April 2012.
Similarly emissions factors would be developed for wood chips,
cellulosic ethanol, methanol,
sugar cane and biodiesel.
Other bioenergy fuels such as wood chips,
cellulosic ethanol, methanol,
sugar cane and biodiesel have their own distinct lifecycle fuel inputs and carbon emissions, raising the thorny issue of assessing and taxing their lifecycle carbon emissions.
A key advantage of using yeast for
cellulosic ethanol production is their ability to work over a broad temperature (< 44oC) and pH (3.0 — 8.0) range to produce large amounts of
sugar.
Industrial countries could produce enough
sugar cane / grain ethanol and / or
cellulosic ethanol to replace the 75 + million barrels / day they consume without adversed effects on food production and / or major changes in land use.
The next-most critical barrier to commercialization of
cellulosic ethanol is the need for organisms capable of efficient fermentation of holocellulose, which contains up to 40 % C5
sugars.
Corn ethanol has proven itself top tier value and paved the market place to make
cellulosic, waste, and
sugar ethanol that much easier.
Agrivida, Inc. and Syngenta Ventures will collaborate to develop advanced crop technology that will provide low - cost
sugars from
cellulosic biomass for a variety of industrial applications including biofuels and biochemicals without requiring external enzymes for biomass... Read more →
But researchers in Spain have discovered a way to break down the stone's
cellulosic fibers into
sugars that can be fermented to make ethanol.
The team is studying a bacterium, or bioprocessing microbe, that can break down
cellulosic biomass into
sugars for fermenting into ethanol.
For example, starch from corn grown in the midwest has traditionally been the source of some of the ethanol used as a fuel additive in the U.S.. Another option for the conversion of
cellulosic biomass, such as hemp stalks, to ethanol is their hydrolysis to
sugar, followed by fermentation and removal of the produced ethanol by distillation.
In other words,
cellulosic conversion technology could easily drive deforestation, especially in the tropics where converting natural systems to fuel would be easier than planting potential fuel - crops like oil palm,
sugar cane, soybeans, or corn.