Navigation Links
Fuel from cellulose
Date:8/8/2008

This release is available in German.

Independence from fossil fuel exporting nations, a reduction in the release of greenhouse gases, conservation of dwindling resources: there are any number of reasons to stop the use of fossil fuels. Hydrogen technology and solar energy will very probably provide the solution to our global energy problemin the long term. For an initial quick remedy we may look to bioenergy. Biomass can be used to generate alternative carbon-based liquid fuels, allowing the continued use of current automotive combustion engine technology and existing infrastructure. At the same time, the chemical industry would continue to be supplied with the carbon compounds it requires as raw materials for plastics, textiles, etc. Mark Mascal and Edward B. Nikitin at the University of California, Davis (USA) have now developed an interesting new method for the direct conversion of cellulose into furan-based biofuels. As they report in the journal Angewandte Chemie, their simple, inexpensive process delivers furanic compounds in yields never achieved before.

Atmospheric carbon dioxide is viewed as the ultimate carbon source of the future. It is most efficiently "harvested" by plants via photosynthesis. Currently, biofuel producers primarily use starch, which is broken down to form sugars that are then fermented to give ethanol. Cellulose is however the most common form of photosynthetically fixed carbon. The problem is that the degradation of cellulose into its individual sugar components, which could then be fermented, is a slow and expensive process. "Another problem is that the carbon economy of glucose fermentation is poor," explains Mascal, "for every 10 g of ethanol produced, you also release 9.6 g CO2."

Could we avoid the breakdown of cellulose and fermentation? Mascal and Nikitin demonstrate that we can indeed. They have developed a simple process for the conversion of cellulose directly into "furanics", which are furan-based organic liquids. Furans are molecules whose basic unit is an aromatic ring made of one oxygen and four carbon atoms. The main product the researchers obtain under the conditions they have been developing is 5-chloromethylfurfural (CMF).

CMF and ethanol can be combined to give ethoxymethylfufural (EMF), and CMF reacts with hydrogen to give 5-methylfurfural. Both of these compounds are suitable as fuels. EMF has previously been investigated and found to be of interest in mixtures with diesel by Avantium Technologies, a spin-off of Shell.

"Our method appears to be the most efficient conversion of cellulose into simple, hydrophobic, organic compounds described to date," says Mascal. "It also surpasses the carbon yields of glucose and sucrose fermentation. Furanics could be established as both the automotive energy source and chemical starting material of the future."


'/>"/>

Contact: Mark Mascal
mascal@chem.ucdavis.edu
530-754-5373
Wiley-Blackwell
Source:Eurekalert

Related biology news :

1. For the paper trail of life on Mars or other planets, find cellulose
2. Iowa State researcher studies how enzymes break down cellulose
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... 11, 2017 NXT-ID, Inc. (NASDAQ:   ... announces the appointment of independent Directors Mr. Robin D. ... Board of Directors, furthering the company,s corporate governance and expertise. ... Gino Pereira , ... forward to their guidance and benefiting from their considerable expertise ...
(Date:4/5/2017)... KEY FINDINGS The global market ... CAGR of 25.76% during the forecast period of 2017-2025. ... for the growth of the stem cell market. ... MARKET INSIGHTS The global stem cell market is segmented ... The stem cell market of the product is segmented ...
(Date:3/30/2017)... March 30, 2017 The research team of ... three-dimensional (3D) fingerprint identification by adopting ground breaking 3D fingerprint minutiae ... realm of speed and accuracy for use in identification, crime investigation, ... cost. ... A research ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... , ... October 10, 2017 , ... Dr. Bob Harman, ... his local San Diego Rotary Club. The event entitled “Stem Cells ... and had 300+ attendees. Dr. Harman, DVM, MPVM was joined by two human ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... business process optimization firm for the life sciences and healthcare industries, announces a ... in San Francisco. , The presentation, “Automating GxP Validation for Agile Cloud Platforms,” ...
(Date:10/9/2017)... ... ... The award-winning American Farmer television series will feature 3 Bar Biologics in an ... on RFD-TV. , With global population estimates nearing ten billion people by 2050, ... a growing nation. At the same time, many of our valuable resources are becoming ...
(Date:10/9/2017)... San Antonio, Texas (PRWEB) , ... ... ... a new study published on October 5, 2017, in the medical journal, ... demonstrated equivalence with the gold standard, video EEG, in detecting generalized tonic-clonic ...
Breaking Biology Technology: