Featured Research

from universities, journals, and other organizations

Better Bubbling Slurry

Date:
April 15, 2005
Source:
Netherlands Organization For Scientific Research
Summary:
Dutch-sponsored researcher Keshav Ruthiya has made considerable improvements to a so-called slurry bubble column. The chemical industry uses these bubble columns for reactions between gases and liquids, for example, for organic wastewater purification or the synthesis of hydrocarbons. Various companies are interested in using Ruthiya's results in commercial reactors.

Related Articles


The researcher made a model that described the influence of the catalyst particles and other substances present on the mass transfer, the hydrodynamics and the reaction rate in the column. The new insights obtained have led to improved designs and therefore cost savings for this type of reactor. This will improve the competitiveness of the chemical industry. Companies involved in the project such as Shell, Akzo Nobel, Engelhard and DSM Research are very interested in the results of the research.

By means of experiments, the researcher discovered how to increase the reaction rate in the column. The catalyst particles were found to adhere better to gas bubbles if the surface characteristics of the particles were improved. With these modifications the catalyst is exposed to a higher concentration of gas and therefore the reaction rate increases. This results in an increased efficiency of the catalyst, thereby reducing the amount of the expensive catalyst needed.

Sometimes the reaction in question proceeds less well if the catalyst is exposed to large concentrations of gas. In such a case, the catalysts used must adhere as little as possible to the gas bubbles, says Ruthiya.

For decades chemical engineers have been studying how gases and fluids react with each other in bubble columns. The behaviour of the catalyst particles could not be predicted well up until now. The properties of the catalyst particles have a lot of influence on the reaction, for example, because they aggregate or because they attach to the gas bubbles and remain attached to these.

Keshav Ruthiya's research was financed by Technology Foundation STW.


Story Source:

The above story is based on materials provided by Netherlands Organization For Scientific Research. Note: Materials may be edited for content and length.


Cite This Page:

Netherlands Organization For Scientific Research. "Better Bubbling Slurry." ScienceDaily. ScienceDaily, 15 April 2005. <www.sciencedaily.com/releases/2005/04/050414180430.htm>.
Netherlands Organization For Scientific Research. (2005, April 15). Better Bubbling Slurry. ScienceDaily. Retrieved March 1, 2015 from www.sciencedaily.com/releases/2005/04/050414180430.htm
Netherlands Organization For Scientific Research. "Better Bubbling Slurry." ScienceDaily. www.sciencedaily.com/releases/2005/04/050414180430.htm (accessed March 1, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, March 1, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Elon Musk's Hyperloop Moves Forward

Elon Musk's Hyperloop Moves Forward

Buzz60 (Feb. 27, 2015) Zipping around at 800-miles an hour is coming closer to reality in California. An entire town is being built around Elon Musk&apos;s Hyperloop concept and it wants you to stop in for a ride when it&apos;s ready. Brett Larson is on board. Video provided by Buzz60
Powered by NewsLook.com
Vibrating Bicycle Senses Traffic

Vibrating Bicycle Senses Traffic

Reuters - Innovations Video Online (Feb. 26, 2015) Dutch scientists have developed a smart bicycle that uses sensors, wireless technology and video to warn riders of traffic dangers. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
In Japan, Robot Dogs Are for Life -- And Death

In Japan, Robot Dogs Are for Life -- And Death

AFP (Feb. 25, 2015) Robot dogs are the perfect pet for some in Japan who go to repairmen-turned-vets when their pooch breaks down - while a full Buddhist funeral ceremony awaits those who don&apos;t make it. Duration: 02:40 Video provided by AFP
Powered by NewsLook.com
London Show Dissects History of Forensic Science

London Show Dissects History of Forensic Science

AFP (Feb. 25, 2015) Forensic science, which has fascinated generations with its unravelling of gruesome crime mysteries, is being put under the microscope in an exhibition of real criminal investigations in London. Duration: 00:53 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:

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