Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Novel Filter Material Could Cut Natural Gas Refining Costs

Iron projecting into the pore of the tubelike metal-organic framework (center, looking down its roughly nanometer-wide opening) attracts the light hydrocarbon molecules that surround it to varying degrees. These varied attraction levels could make the framework more efficient at hydrocarbon separation than current refinery processes.
Credit: Queen/NIST
Iron projecting into the pore of the tubelike metal-organic framework (center, looking down its roughly nanometer-wide opening) attracts the light hydrocarbon molecules that surround it to varying degrees. These varied attraction levels could make the framework more efficient at hydrocarbon separation than current refinery processes.

Credit: Queen/NIST

Abstract:
Measurements taken by a team including National Institute of Standards and Technology (NIST) scientists show that a newly devised material has the ability to separate closely related components of natural gas from one another, a task that currently demands a good deal of energy to accomplish. The results, published March 30, 2012, in the journal Science, might improve the efficiency of the distillation process.

Novel Filter Material Could Cut Natural Gas Refining Costs

Gaithersburg, MD | Posted on April 2nd, 2012

The material is a new type of metal-organic framework (MOF), a class of materials whose high surface area and tunable properties make them promising for applications as varied as gas storage, catalysis and drug delivery. This particular iron-based MOF, which the research team refers to as Fe-MOF-74, was built in the lab of Jeffrey Long, a professor of chemistry at the University of California Berkeley, and analyzed by the team at NIST and the Australian Nuclear Science and Technology Organisation's Bragg Institute.

Natural gas taken straight from the ground consists of a complex mixture of molecules called hydrocarbons, only some of which are needed for use in any specific product such as fuel or plastic. Separating the lighter types of hydrocarbon from one another—propane and ethylene, for example—is difficult because their weights are so similar. Currently, the most effective separation method involves chilling light hydrocarbons down to the point where they

all liquefy, sometimes as low as 100 degrees below zero Celsius, and waiting until the heavier liquids settle below the lighter ones.

"A good percentage of the energy needed for separation goes to the cooling process," says Wendy Queen, a postdoctoral fellow at the NIST Center for Neutron Research. "A material that can selectively adsorb light hydrocarbons could offer significant energy savings, making separation more economical."

Through a microscope, Fe-MOF-74 looks like a collection of narrow tubes packed together like drinking straws in a box. Each tube is made of organic materials and six long strips of iron, which run lengthwise along the tube. The team's analysis shows that different light hydrocarbons have varied levels of attraction to the tubes' iron, a finding that can be exploited for separation. By passing a mixed-hydrocarbon gas through a series of filters made of the tubes, the hydrocarbon with the strongest affinity can be removed in the first filter layer, the next strongest in the second layer, and so forth.

"It works well at 45 degrees Celsius, which is closer to the temperature of hydrocarbons at some points in the distillation process," Queen says. "The upshot is that if we can bring the MOF to market as a filtration device, the energy-intensive cooling step potentially can be eliminated. We are now trying out metals other than iron in the MOF in case we can find one that works even better."

* E.D. Bloch, W.L. Queen, R.Krishna, J.M. Zadrozny, C.M. Brown and J.R. Long. Hydrocarbon separations in a metal-organic framework with open Iron(II) coordination sites. Science, March 30, 2012. DOI:\10.1126\science.1217544

####

About National Institute of Standards and Technology (NIST)
The National Institute of Standards and Technology (NIST) is an agency of the U.S. Department of Commerce.

For more information, please click here

Contacts:
Chad Boutin
301-975-4261

Copyright © National Institute of Standards and Technology (NIST)

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Toyocolor to Launch New Carbon Nanotube Materials at nano tech 2015 January 24th, 2015

NANOPOSTER 2015 - 5th Virtual Nanotechnology Conference - call for abstracts January 24th, 2015

Nanosensor Used for Simultaneous Determination of Effective Tea Components January 24th, 2015

The latest fashion: Graphene edges can be tailor-made: Rice University theory shows it should be possible to tune material's properties January 24th, 2015

Laboratories

Self-assembled nanotextures create antireflective surface on silicon solar cells: Nanostructured surface textures-with shapes inspired by the structure of moths' eyes-prevent the reflection of light off silicon, improving conversion of sunlight to electricity January 21st, 2015

NREL Scientist Brian Gregg Named AAAS Fellow: Gregg honored for distinguished contributions to the field of organic solar photoconversion January 20th, 2015

Self-destructive Effects of Magnetically-doped Ferromagnetic Topological Insulators: Magnetic atoms that create exotic surface property also sow the seeds of its destruction January 19th, 2015

Solving an organic semiconductor mystery: Berkeley Lab researchers uncover hidden structures in domain interfaces that hamper performance January 16th, 2015

Govt.-Legislation/Regulation/Funding/Policy

The latest fashion: Graphene edges can be tailor-made: Rice University theory shows it should be possible to tune material's properties January 24th, 2015

Scientists 'bend' elastic waves with new metamaterials that could have commercial applications: Materials could benefit imaging and military enhancements such as elastic cloaking January 23rd, 2015

Harper Government Supports Research Innovation in Western Canada January 22nd, 2015

EnvisioNano: An image contest hosted by the National Nanotechnology Initiative (NNI) January 22nd, 2015

Discoveries

Nanosensor Used for Simultaneous Determination of Effective Tea Components January 24th, 2015

The latest fashion: Graphene edges can be tailor-made: Rice University theory shows it should be possible to tune material's properties January 24th, 2015

Iranian Scientists Produce Graphene-Based Oxygen Sensor January 23rd, 2015

Silver nanowires demonstrate unexpected self-healing mechanism: The material has potential for flexible electronics January 23rd, 2015

Materials/Metamaterials

Toyocolor to Launch New Carbon Nanotube Materials at nano tech 2015 January 24th, 2015

The latest fashion: Graphene edges can be tailor-made: Rice University theory shows it should be possible to tune material's properties January 24th, 2015

Silver nanowires demonstrate unexpected self-healing mechanism: The material has potential for flexible electronics January 23rd, 2015

Scientists 'bend' elastic waves with new metamaterials that could have commercial applications: Materials could benefit imaging and military enhancements such as elastic cloaking January 23rd, 2015

Announcements

Toyocolor to Launch New Carbon Nanotube Materials at nano tech 2015 January 24th, 2015

NANOPOSTER 2015 - 5th Virtual Nanotechnology Conference - call for abstracts January 24th, 2015

Nanosensor Used for Simultaneous Determination of Effective Tea Components January 24th, 2015

The latest fashion: Graphene edges can be tailor-made: Rice University theory shows it should be possible to tune material's properties January 24th, 2015

Energy

New technique helps probe performance of organic solar cell materials January 23rd, 2015

Transparent artificial nacre: A brick wall at the nanoscale January 22nd, 2015

Teijin to Participate in Nano Tech 2015 January 22nd, 2015

The path to artificial photosynthesis: HZB researchers describe efficient manganese catalyst capable of converting light to chemical energy January 21st, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE