Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

University of Tennessee professor and student develop device to detect biodiesel contamination

06.09.2013
The probability of contamination of diesel fuel is increasing as biodiesel becomes more popular and as distribution and supply systems use the same facilities to store and transport the 2 types of fuels

In 2010, a Cathay Pacific Airways plane was arriving in Hong Kong when the engine control thrusts seized up and it was forced to make a hard landing—injuring dozens. The potential culprit? Contaminated fuel.

The probability of contamination of diesel fuel is increasing as biodiesel becomes more popular and as distribution and supply systems use the same facilities to store and transport the two types of fuels.

A professor and student team at the University of Tennessee, Knoxville, has developed a quick and easy-to-use sensor that can detect trace amounts of biodiesel contamination in diesel.

The work of chemistry professor Ziling (Ben) Xue and doctoral student Jonathan Fong has been published in the journal Chemical Communications.

"The ability to detect biodiesel at various concentrations in diesel is an important goal in several industries," said Xue. "There is particular concern over biodiesel contamination in jet fuel, because at higher levels it can impact the thermal stability and freezing point of jet fuel leading to deposits in the fuel system or gelling of the fuel. These issues can result in jet engine operability problems and possible engine flameout."

Xue and Fong tested several dyes and found that the dye Nile blue chloride dissolved in alcohol, can be made into a thin film with high sensitivity toward biodiesel contamination in jet fuel. They tested small strips of the sensor and found it could successfully detect amounts of biodiesel contaminant in diesel as low as 0.5 parts per million—ten times below the allowable limit of 5 ppm in the U.S.—in less than 30 minutes.

With diesel, because it does not displace alcohol in the dye, the sensor remains blue. However, biodiesel replaces the alcohol, changing the sensor color to pink. This change can be seen with the naked eye.

"Right now, there is a dire need for quick, easy and direct detection of biodiesel in diesel and biodiesel-diesel blends to ensure safe and efficient-performing fuels," said Fong. "The sensors we developed are intrinsically small, easy to use, inexpensive and can be mass produced for disposable applications"

The researchers say the sensor can be deployed in a portable reader for use in the field. The sensor can also be used for drivers delivering biodiesel-diesels to gas stations to quickly verify that the blends are accurate.

They are working with the UT Research Foundation to find partners to commercialize the technology.

Whitney Heins | EurekAlert!
Further information:
http://www.utk.edu

More articles from Power and Electrical Engineering:

nachricht Did you know that the wrapping of Easter eggs benefits from specialty light sources?
13.04.2017 | Heraeus Noblelight GmbH

nachricht To e-, or not to e-, the question for the exotic 'Si-III' phase of silicon
05.04.2017 | Carnegie Institution for Science

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>