Featured Research

from universities, journals, and other organizations

Hydrogen distribution not an option in biomass gasification, researcher says

Date:
July 8, 2010
Source:
Delft University of Technology
Summary:
When using fuel cells to generate electricity from biomass, the best approach is to do so centrally, in combination with a gas turbine. The production and subsequent distribution of hydrogen is an inefficient process.

When using fuel cells to generate electricity from biomass, the best approach is to do so centrally, in combination with a gas turbine. The production and subsequent distribution of hydrogen is an inefficient process. This is the view of Richard Toonssen, who will defend his doctoral dissertation on this subject at TU Delft on July 8.

Sustainable

Biomass is seen as a renewable energy source for the production of electricity and heat. The conversion of biomass for this purpose must, of course, be as efficient as possible. With this in mind, biomass gasification in combination with the use of fuel cell systems could be a very promising technology (in the future). Richard Toonssen of TU Delft compared suitable conversion chains.

Syngas

In the first conversion chain that Richard Toonssen studied, biomass is first centrally converted into syngas (a mixture of hydrogen and carbon monoxide). This gas is then used directly in fuel cells (of the SOFC type), in combination with a gas turbine, to produce electricity. The electricity generated in this way is distributed through the grid for household use. Some of this electricity is used to power household heat pumps, for heating purposes.

Gaseous

The second conversion chain that Richard Toonssen examined also starts with the centralised conversion of biomass into syngas. This is then reprocessed into a gaseous fuel (clean syngas, hydrogen, or synthetic natural gas). The fuel is then distributed to customers via a supply network. The customers in question are households that use this fuel in micro-cogeneration/coupling systems, consisting of a fuel-cell system and a heat pump.

Efficiency

The distribution of syngas is the most efficient variant of this second chain, closely followed by synthetic natural gas. According to Richard Toonssen, the variant involving the distribution of hydrogen is the least efficient of the three. The major conclusion here is that, in this case, hydrogen is an unsuitable energy carrier. Electricity is a better option.

However, none of the second conversion chain options are as promising as the first chain which, as stated above, involves the central conversion of biomass into electricity in a combined fuel-cell/gas-turbine system.


Story Source:

The above story is based on materials provided by Delft University of Technology. Note: Materials may be edited for content and length.


Cite This Page:

Delft University of Technology. "Hydrogen distribution not an option in biomass gasification, researcher says." ScienceDaily. ScienceDaily, 8 July 2010. <www.sciencedaily.com/releases/2010/07/100708104322.htm>.
Delft University of Technology. (2010, July 8). Hydrogen distribution not an option in biomass gasification, researcher says. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2010/07/100708104322.htm
Delft University of Technology. "Hydrogen distribution not an option in biomass gasification, researcher says." ScienceDaily. www.sciencedaily.com/releases/2010/07/100708104322.htm (accessed October 22, 2014).

Share This



More Matter & Energy News

Wednesday, October 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Thanks, Marty McFly! Hoverboards Could Be Coming In 2015

Thanks, Marty McFly! Hoverboards Could Be Coming In 2015

Newsy (Oct. 21, 2014) If you've ever watched "Back to the Future Part II" and wanted to get your hands on a hoverboard, well, you might soon be in luck. Video provided by Newsy
Powered by NewsLook.com
Robots to Fly Planes Where Humans Can't

Robots to Fly Planes Where Humans Can't

Reuters - Innovations Video Online (Oct. 21, 2014) Researchers in South Korea are developing a robotic pilot that could potentially replace humans in the cockpit. Unlike drones and autopilot programs which are configured for specific aircraft, the robots' humanoid design will allow it to fly any type of plane with no additional sensors. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
Graphene Paint Offers Rust-Free Future

Graphene Paint Offers Rust-Free Future

Reuters - Innovations Video Online (Oct. 21, 2014) British scientists have developed a prototype graphene paint that can make coatings which are resistant to liquids, gases, and chemicals. The team says the paint could have a variety of uses, from stopping ships rusting to keeping food fresher for longer. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
China Airlines Swanky New Plane

China Airlines Swanky New Plane

Buzz60 (Oct. 21, 2014) China Airlines debuted their new Boeing 777, and it's more like a swanky hotel bar than an airplane. Enjoy high-tea, a coffee bar, and a full service bar with cocktails and spirits, and lie-flat in your reclining seats. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins