Navigation Links
Minnesota discovery could make fuel and plastics production more energy efficient and cost effective
Date:10/12/2011

A University of Minnesota team of researchers has overcome a major hurdle in the quest to design a specialized type of molecular sieve that could make the production of gasoline, plastics and various chemicals more cost effective and energy efficient. The breakthrough research, led by chemical engineering and materials science professor Michael Tsapatsis in the university's College of Science and Engineering, is published in the most recent issue of the journal Science.

After more than a decade of research, the team devised a means for developing free-standing, ultra-thin zeolite nanosheets that as thin films can speed up the filtration process and require less energy. The team has a provisional patent and hopes to commercialize the technology.

"In addition to research on new renewable fuels, chemicals and natural plastics, we also need to look at the production processes of these and other products we use now and try to find ways to save energy," Tsapatsis said.

Separating mixed substances can demand considerable amounts of energycurrently estimated to be approximately 15 percent of the total energy consumptionpart of which is wasted due to process inefficiencies. In days of abundant and inexpensive fuel, this was not a major consideration when designing industrial separation processes such as distillation for purifying gasoline and polymer precursors. But as energy prices rise and policies promote efficiency, the need for more energy-efficient alternatives has grown.

One promising option for more energy-efficient separations is high-resolution molecular separation with membranes. They are based on preferential adsorption and/or sieving of molecules with minute size and shape differences. Among the candidates for selective separation membranes, zeolite materials (crystals with molecular-sized pores) show particular promise.

While zeolites have been used as adsorbents and catalysts for several decades, there have been substantial challenges in processing zeolitic materials into extended sheets that remain intact. To enable energy-savings technology, scientists needed to develop cost-effective, reliable and scalable deposition methods for thin film zeolite formation.

The University of Minnesota team used sound waves in a specialized centrifuge process to develop "carpets" of flaky crystal-type nanosheets that are not only flat, but have just the right amount of thickness. The resulting product can be used to separate molecules as a sieve or as a membrane barrier in both research and industrial applications.

"We think this discovery holds great promise in commercial applications," said Kumar Varoon, a University of Minnesota chemical engineering and materials science Ph.D. candidate and one of the primary authors of the paper published in Science. "This material has good coverage and is very thin. It could significantly reduce production costs in refineries and save energy."


'/>"/>

Contact: Rhonda Zurn
rzurn@umn.edu
612-626-7959
University of Minnesota
Source:Eurekalert

Related biology news :

1. Minnesota ecology professor wins international award for biodiversity and biofuels research
2. U of Minnesota researcher finds link between aggression, status and sex
3. Hobbit fossils represent a new species, concludes University of Minnesota anthropologist
4. Small male chimps use politics, rather than aggression, to lead the pack, U of Minnesota study says
5. U of Minnesota research finds most road salt is making it into the states lakes and rivers
6. Concerns about food safety to be spotlighted at U of Minnesota symposium
7. U of Minnesota study finds high school teachers influence student views of evolution & creationism
8. U of Minnesota research reveals critical role of evolutionary processes in species coexistence
9. Minnesota Counties Secure New Criminal Charging System With BIO-key(R) Fingerprint Biometrics
10. U of Minnesota-led study finds that hunters are depleting lion and cougar populations
11. Environmental cues control reproductive timing and longevity, University of Minnesota study shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/31/2016)...  Genomics firm Nabsys has completed a financial  restructuring ... , M.D., who returned to the company in October ... team, including Chief Technology Officer, John Oliver , ... and Vice President of Software and Informatics, Michael ... Dr. Bready served as CEO of Nabsys from 2005-2014 ...
(Date:3/21/2016)... 22, 2016 Unique technology ... for superior security   Xura, ... of secure digital communications services, today announced it is ... offer enterprise customers, particularly those in the Financial Services ... voice authentication within a mobile app, alongside, and in ...
(Date:3/14/2016)... 14, 2016 NXTD ) ("NXT-ID" or ... market, announces the airing of a new series of commercials ... of March 21 st .  The commercials will air on ... Squawk on the Street show. --> NXTD ) ... mobile commerce market, announces the airing of a new series ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... May 25, 2016 , ... Founder of the Fitzmaurice ... surgery and surgery of the hand by the National Board of Physicians and ... above and beyond in his pursuit of providing the most comprehensive, effective treatment ...
(Date:5/25/2016)... (PRWEB) , ... May 25, 2016 , ... Scientists at ... line options being tried for mesothelioma may be hampering the research that could lead ... research. Click here to read it now. , The team evaluated 98 ...
(Date:5/25/2016)... ... May 25, 2016 , ... Lady had been battling arthritis ... cruciate ligament in her left knee. Lady’s owner Hannah sought the help of Dr ... veterinary surgeon, to repair her cruciate ligament and help with the pain of Lady’s ...
(Date:5/24/2016)... ... 2016 , ... Cell therapies for a range of serious ... at Worcester Polytechnic Institute (WPI) that yielded a newly patented method of converting ... novel method, developed by WPI faculty members Raymond Page, PhD, professor of practice ...
Breaking Biology Technology: