Navigation Links
Green chemistry offers route towards zero-waste production
Date:2/18/2011

Novel green chemical technologies will play a key role helping society move towards the elimination of waste while offering a wider range of products from biorefineries, according to a University of York scientist.

Professor James Clark, Director of the University's Green Chemistry Centre of Excellence, will tell a symposium at the Annual meeting of the American Association for the Advancement of Science (AAAS) that the use of low environmental impact green chemical technologies will help ensure that products are genuinely and verifiably green and sustainable.

He says the extraction of valuable chemicals from biomass could form the initial processing step of many future biorefineries.

"We have shown that wax products with numerous applications, can be extracted from crop and other by-products including wheat and barley straws, timber residues and grasses, using supercritical carbon dioxide a green chemical technology that allows the production of products with no solvent residues," he says.

"The extracted residues can be used in applications including construction as well as in bioprocessing."

Low-temperature microwaves can also be used to pyrolyse biomass, allowing greater control over the heating process. The process results in significant energy savings and produces high quality oils, and oils and solids with useful chemical properties.

Professor Clark says that combining continuous extraction with microwave irradiation, it is possible separate an aqueous phase leaving the oils cleaner, less acidic and with lower quantities of other contaminants such as alkali metals. The oils have significant potential as feedstocks for making chemical products as well as for blending into transport fuels.

"Our microwave technology can also be tuned to produce bio-chars with calorific values and physical properties that make them suitable for co-firing with coal in power-stations," he adds.


'/>"/>

Contact: David Garner
david.garner@york.ac.uk
44-190-432-2153
University of York
Source:Eurekalert

Page: 1

Related biology news :

1. The green machine: Algae clean wastewater, convert to biodiesel
2. UC Davis energy experts to help US Navy get greener
3. Arctic climate variation under ancient greenhouse conditions
4. Nottingham success in green technologies awards
5. A green way to cap an old landfill
6. Neiker-Tecnalia creates air-conditioned greenhouse with alternative energies
7. Ben-Gurion U. and PTT Chemical sign R&D agreement to commercialize green algae strain
8. The undead may influence biodiversity, greenhouse gas emissions
9. Manchester leads green chemical training push
10. 5 standout species for extensive green roofs
11. Green chemistry extraction method developed for hot capsicum fruit
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/31/2016)... March 31, 2016   ... or the "Company") LegacyXChange is excited to ... its soon to be launched online site for trading ... ) will also provide potential shareholders a sense ... technology to an industry that is notorious for fraud. ...
(Date:3/23/2016)... WAKEFIELD, Massachusetts , March 23, 2016 ... kombiniert im Interesse erhöhter Sicherheit Gesichts- und ... Xura, Inc. (NASDAQ: MESG ... heute bekannt, dass das Unternehmen mit SpeechPro ... insbesondere aus der Finanzdienstleistungsbranche, wird die Möglichkeit ...
(Date:3/21/2016)... , March 22, 2016 ... recognition with passcodes for superior security   ... a leading provider of secure digital communications services, today ... biometric technology and offer enterprise customers, particularly those in ... facial recognition and voice authentication within a mobile app, ...
Breaking Biology News(10 mins):
(Date:5/22/2016)... (PRWEB) , ... May 22, 2016 , ... Doctors in ... in combating the asbestos cancer, malignant mesothelioma. Surviving Mesothelioma has just posted an article ... in the University of Rome’s Department of Clinical Sciences and Translational Medicine evaluated more ...
(Date:5/19/2016)... , ... May 19, 2016 , ... Anton Paar USA, ... square foot office building is complete. The new structure adds a third office building ... Anton Paar USA purchased 2.4 acres of land, along with office space adjacent ...
(Date:5/19/2016)... 2016 - I dati saranno ... il 52 ° Congresso della ... - Le conclusioni dello studio indicano un tasso ... di cui il 90% presenta una d urata della ... Il settantadue per cento dei pazienti ha riscontrato un beneficio ...
(Date:5/18/2016)... ... May 18, 2016 , ... Every day, more than ... asthma complications.* Costing more than $56 billion in direct costs annually, asthma remains ... too many, the suffering associated with uncontrolled asthma can be overwhelmingly disproportionate and ...
Breaking Biology Technology: