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 August 21, 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 August 21, 2014).

Share This




More Matter & Energy News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Flower Power! Dandelions Make Car Tires?

Flower Power! Dandelions Make Car Tires?

Reuters - Business Video Online (Aug. 20, 2014) Forget rolling on rubber, could car drivers soon be traveling on tires made from dandelions? Teams of scientists are racing to breed a type of the yellow flower whose taproot has a milky fluid with tire-grade rubber particles in it. As Joanna Partridge reports, global tire makers are investing millions in research into a new tire source. Video provided by Reuters
Powered by NewsLook.com
Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Newsy (Aug. 19, 2014) Scientists have developed a new device that mimics the way octopuses blend in with their surroundings to hide from dangerous predators. Video provided by Newsy
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com
Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

AFP (Aug. 19, 2014) A solar cell that resembles a flower is offering a new take on green energy in Japan, where one scientist is searching for renewables that look good. Duration: 01:29 Video provided by AFP
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