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 July 30, 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 July 30, 2014).

Share This




More Matter & Energy News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Britain Testing Driverless Cars on Roadways

Britain Testing Driverless Cars on Roadways

AP (July 30, 2014) British officials said on Wednesday that driverless cars will be tested on roads in as many as three cities in a trial program set to begin in January. Officials said the tests will last up to three years. (July 30) Video provided by AP
Powered by NewsLook.com
Amid Drought, UCLA Sees Only Water

Amid Drought, UCLA Sees Only Water

AP (July 30, 2014) A ruptured 93-year-old water main left the UCLA campus awash in 8 million gallons of water in the middle of California's worst drought in decades. (July 30) Video provided by AP
Powered by NewsLook.com
Smartphone Powered Paper Plane Debuts at Airshow

Smartphone Powered Paper Plane Debuts at Airshow

AP (July 30, 2014) Smartphone powered paper airplane that was popular on crowdfunding website KickStarter makes its debut at Wisconsin airshow (July 30) Video provided by AP
Powered by NewsLook.com
U.K. To Allow Driverless Cars On Public Roads

U.K. To Allow Driverless Cars On Public Roads

Newsy (July 30, 2014) Driverless cars could soon become a staple on U.K. city streets, as they're set to be introduced to a few cities in 2015. Video provided by Newsy
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:
from the past week

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