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.

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 April 17, 2014 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 April 17, 2014).

Share This



More Matter & Energy News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

German Researchers Crack Samsung's Fingerprint Scanner

German Researchers Crack Samsung's Fingerprint Scanner

Newsy (Apr. 16, 2014) German researchers have used a fake fingerprint made from glue to bypass the fingerprint security system on Samsung's new Galaxy S5 smartphone. Video provided by Newsy
Powered by NewsLook.com
Porsche CEO Says Supercar Is Not Dead: Cue the Spyder 918

Porsche CEO Says Supercar Is Not Dead: Cue the Spyder 918

TheStreet (Apr. 16, 2014) The Porsche Spyder 918 proves that, in an automotive world obsessed with fuel efficiency, the supercar is not dead. Porsche North America CEO Detlev von Platen attributes the brand's consistent sales growth -- 21% in 2013 -- with an investment in new technology and expanded performance dynamics. The hybrid Spyder 918 has 887 horsepower and 944 lb-ft of torque, but it can run 18 miles on just an electric charge. The $845,000 vehicle is not a consumer-targeted vehicle but a brand statement. Video provided by TheStreet
Powered by NewsLook.com
Industry's Optimism Shines At New York Auto Show

Industry's Optimism Shines At New York Auto Show

Newsy (Apr. 16, 2014) After seeing auto sales grow last month, there's plenty for the industry to celebrate as it rolls out its newest designs. Video provided by Newsy
Powered by NewsLook.com
Ford Mustang Fetes Its 50th Atop Empire State Building

Ford Mustang Fetes Its 50th Atop Empire State Building

AFP (Apr. 16, 2014) Ford celebrated the 50th birthday of its beloved Mustang by displaying a new model of the convertible on top of the Empire State Building in New York. Duration: 00:28 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