Navigation Links
Chemical engineers at UMass Amherst find high-yield method of making xylene from biomass
Date:4/30/2012

A team of chemical engineers led by Paul J. Dauenhauer of the University of Massachusetts Amherst has discovered a new, high-yield method of producing the key ingredient used to make plastic bottles from biomass. The process is inexpensive and currently creates the chemical p-xylene with an efficient yield of 75-percent, using most of the biomass feedstock, Dauenhauer says. The research is published in the journal ACS Catalysis.

Dauenhauer, an assistant professor of chemical engineering at UMass Amherst, says the new discovery shows that there is an efficient, renewable way to produce a chemical that has immediate and recognizable use for consumers. He says the plastics industry currently produces p-xylene from petroleum and that the new renewable process creates exactly the same chemical from biomass.

'You can mix our renewable chemical with the petroleum-based material and the consumer would not be able to tell the difference," Dauenhauer says.

Consumers will already know the plastics made from this new process by the triangular recycling label "#1" on plastic containers. Xylene chemicals are used to produce a plastic called PET (or polyethylene terephthalate), which is currently used in many products including soda bottles, food packaging, synthetic fibers for clothing and even automotive parts.

The new process uses a zeolite catalyst capable of transforming glucose into p-xylene in a three-step reaction within a high-temperature biomass reactor. Dauenhauer says this is a major breakthrough since other methods of producing renewable p-xylene are either expensive (e.g., fermentation) or are inefficient due to low yields.

A key to the success of this new process is the use of a catalyst that is specifically designed to promote the p-xylene reaction over other less desirable reactions. Dauenhauer says his research colleagues, professors Wei Fan of UMass Amherst and Raul Lobo of the University of Delaware, d
'/>"/>

Contact: Paul J. Dauenhauer
dauenhauer@ecs.umass.edu
413-545-2819
University of Massachusetts at Amherst
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Chemical equator discovery will aid pollution mapping
2. Researcher working on destruction of chemical weapons
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. American Chemical Societys Weekly PressPac -- Sept. 24, 2008
5. A major prize in the chemical sciences announced by the Camille and Henry Dreyfus Foundation
6. American Chemical Societys Weekly PressPac
7. American Chemical Society Weekly PressPac Oct. 15, 2008
8. UC Davis chemical ecologist wins major award
9. Sniffing out a better chemical sensor
10. Simple chemical procedure augments therapeutic potential of stem cells
11. Researchers use chemical from medicinal plants to fight HIV
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/15/2014)... mechanical solution to avoid chromosome sorting errors, researchers ... Express. , This natural safeguard prevents ... infertility, miscarriage, or congenital conditions. , "Mistakes ... what exactly goes wrong is often not understood," ... for Cell Biology at the University of Edinburgh ...
(Date:9/15/2014)... this week,s print issue of the journal Science ... from New Mexico, Montana and even the Netherlands, thanks ... and more the norm in these connected times. Yes, ... will produce innovations in biology, medicine, biotechnology and agriculture. ... scientist talked with that one, that one knew another ...
(Date:9/15/2014)... Sonja Schmid, an assistant professor in the Department of ... Liberal Arts and Human Sciences at Virginia Tech, has ... (CAREER) Award to study the prospects and problems of ... catastrophic failure of Japan,s Fukushima I Nuclear Power Plant ... the scientific community viewed nuclear emergencies, Schmid said. Three ...
Breaking Biology News(10 mins):Cells simply avoid chromosome confusion 2Cells simply avoid chromosome confusion 3Collaboration drives achievement in protein structure research 2'Nuclear disasters don't respect national boundaries' 2
... Ore. Athletes seeking a healthy performance weight should ... regimen in order to maintain muscle while still burning ... University researcher. The United States now has a ... of as untouched by the obesity crisis. Nationally, more ...
... MA -- Although human cells have an estimated 20,000 genes, only ... depending on the cell,s needs which can change by the ... researchers need tools that can manipulate their status on similarly short ... developed at MIT and the Broad Institute that can rapidly start ...
... scientists have identified causes of a rapid warming in ... partly attribute the observed warming, and preceding cooling trends ... emissions and aerosols predominantly generated in the Northern Hemisphere ... CSIRO and the University of NSW, was published today ...
Cached Biology News:Athletes need to be careful to monitor diet, weight to maintain muscle mass 2Athletes need to be careful to monitor diet, weight to maintain muscle mass 3Controlling genes with light 2Controlling genes with light 3Rapid upper ocean warming linked to declining aerosols 2
(Date:9/15/2014)... can go downhill fast when a patient has sepsis, ... in a patient,s blood -- often too fast for ... human spleen and developed by a team at Harvard,s ... the way doctors treat sepsis. , "Even with ... intensive care units at least 30 percent of the ...
(Date:9/15/2014)... 2014  iVinci Health LLC, the company behind the ... system, branded as VisitPay®, has successfully closed $5 million ... of a new extension to VisitPay® – an online ... convenient way for patients to manage their medical bills ... and their families. The new round of ...
(Date:9/15/2014)... 15 septembre 2014 La deuxième édition ... (semaine internationale sur la sensibilisation au plasma) ... conjointe de la Plasma Protein Therapeutics Association ... , l,IPAW vise à : , ... la collecte du plasma-aphérèse , Reconnaître la ...
(Date:9/14/2014)... regulate protein functions in a wide variety of ways, ... a protein can take on another form and perform ... that fold wrongly can cause serious diseases such as ... also have a tendency to "infect" other molecules of ... fibrils or plaques. These amyloids can damage cells and ...
Breaking Biology Technology:Blood-cleansing biospleen device developed for sepsis therapy 2Blood-cleansing biospleen device developed for sepsis therapy 3Blood-cleansing biospleen device developed for sepsis therapy 4iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 2iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 3L' International Plasma Awareness Week célébrera les donneurs et braquera les projecteurs sur les maladies rares 2L' International Plasma Awareness Week célébrera les donneurs et braquera les projecteurs sur les maladies rares 3Measuring modified protein structures 2Measuring modified protein structures 3
... On July 17th John Byrnes made the following statements in ... Its time to get serious. It is time to stop ... there is nothing we can do about it. These comments ... article and not come away with the impression that (1) ...
... In 1999, charities had raised only $7 million via the Internet, ... Last year, according to the Chronicle of Philanthropy, which now ... $124.5 million. , ,Charities and their for-profit partners are ... the Boys & Girls Club of Dane County and Trek Bicycles ...
... Six Spam Fighters Face Off in Madison , ... WiscNet were once again selected by eWeek, a weekly ... real-world test and evaluation partner for enterprise computing solutions. ... at a two-day Anti-Spam evaluation at the University of ...
Cached Biology Technology:Let's Get Serious About Manufacturing! 2Whos Starting to Profit Online? Nonprofits. 2Six Spam Fighters Face Off in Madison 2Six Spam Fighters Face Off in Madison 3Six Spam Fighters Face Off in Madison 4
Newborn Bovine Serum Heat-Inactivated...
... MagicMark XP Western Protein Standards are ... protein molecular weight estimation directly on ... an IgG binding site, allowing direct ... used to detect your target protein ...
... is the most effective ... PCR products. TOPO TA ... TOPO vectors are supplied ... topoisomerase I. This enables ...
... Conjugated peptides or recombinant proteins are ... produce antibodies in 2 rabbits. pre-immune and ... test until the titer reaches 1:4,000 Western ... Protein G purification Antibodies are eluted using ...
Biology Products: