HOME >> BIOLOGY >> NEWS
New Materials Remove Corrosive Gas In Coal-Gasification Process

CHAMPAIGN, Ill. - Advanced coal-gasification processes are emerging as the most promising technology for converting coal into electricity, but the process generates sizable quantities of hydrogen sulfide, a highly corrosive gas that can destroy pipes and turbines. Chemical engineers at the University of Illinois and the Illinois State Geological Survey are developing materials to remove the hydrogen sulfide and convert it into economically valuable byproducts.

"A typical coal-fired power plant is about 33 percent efficient at generating electricity, while a coal gasifier is up to 50 percent efficient," said Mark Cal, a U. of I. professor of environmental engineering who also is a chemical engineer with the Survey. "Higher efficiency means that fuel can be conserved and greenhouse-gas emissions like carbon dioxide and acid-gas emissions like sulfur dioxide and the nitrogen oxides can be reduced. To achieve maximum performance in coal-gasification plants, an efficient and economical method of removing the hydrogen sulfide from the hot coal gas must be found."

Cal and his colleagues -- environmental engineering professor Mark Rood, Survey scientist Anthony Lizzio and graduate student Brooks Strickler -- are developing carbon-based sorbents that can remove the hydrogen sulfide efficiently.

"While the use of carbon for hot-gas cleanup has had significant potential, previous research has focused mainly on metal-based sorbents such as zinc ferrite, zinc titanate and various copper oxides," Cal said. "But each of these sorbents suffers from at least one major deficiency that prevents its widespread use."

Carbon offers several advantages over metal-based sorbents, Cal said. "Carbon provides excellent resistance to chemical and physical degradation in the harsh coal-gas environment. Carbon adsorbs large quantities of hydrogen sulfide, and can be used as an active support for metals -- such as copper and zinc -- which can enhance the adsorption p
'"/>

Contact: James E. Kloeppel, Physical Sciences Editor
kloeppel@uiuc.edu
217-244-1073
University of Illinois at Urbana-Champaign
31-Oct-1997


Page: 1 2

Related biology news :

1. Media invited to watch NASA Materials Science Conference on national webcast next week
2. NASA Materials Conference Features Science Results, Experts on Technologies for Exploration
3. Materials World tip sheet
4. Fullerene-Based Materials Clear From Tissue, Go To The Bone
5. Understanding Molecular Self-Assembly Opens Door For New Sources Of Wood-Like Materials
6. Virginia Tech Research Group Presents Improved Dental Materials
7. Scientists Show How Defects Can Improve Technology In Science Magazines Special Issue On Materials Science
8. New Technology Deposits Bone-Regenerating Materials On The Surface Of Implants
9. Increased Interest In "Smart" Materials Is Reported
10. Cellular Engineers Design Custom Cell Surfaces Able To Adhere To Synthetic Materials
11. Penn State Process Removes Rocket Fuel Ingredient From Drinking Water

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/1/2016)... NEW YORK , June 1, 2016 ... Biometric Technology in Election Administration and Criminal Identification to ... According to a recently released TechSci Research report, " ... Sector, By Region, Competition Forecast and Opportunities, 2011 - ... $ 24.8 billion by 2021, on account of growing ...
(Date:5/12/2016)... DALLAS , May 12, 2016 ... has just published the overview results from the Q1 ... of the recent wave was consumers, receptivity to a ... wearables data with a health insurance company. ... choose to share," says Michael LaColla , CEO ...
(Date:4/28/2016)... First quarter 2016:   , ... the first quarter of 2015 The gross margin was ... 18.8) and the operating margin was 40% (-13) Earnings ... flow from operations was SEK 249.9 M (21.2) , ... SEK 7,000-8,500 M. The operating margin for 2016 is ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... 27, 2016  Alex,s Lemonade Stand Foundation (ALSF), a ... will open a state-of-the-art bioinformatics lab, using ,big data, ... announcement comes as Liz Scott , co-executive director ... Moonshot Summit in Washington, D.C. , ... participant and advocate of pediatric cancer research and awareness. ...
(Date:6/27/2016)...  Global demand for enzymes is forecast to ... $7.2 billion.  This market includes enzymes used in ... production, animal feed, and other markets) and specialty ... and beverages will remain the largest market for ... products containing enzymes in developing regions.  These and ...
(Date:6/27/2016)... , June 27, 2016 /PRNewswire/ - BIOREM Inc. (TSX-V: ... been advised by its major shareholders, Clean Technology Fund ... United States based venture capital funds ... of Biorem (on a fully diluted, as converted basis), ... disposition of their entire equity holdings in Biorem to ...
(Date:6/27/2016)... , June 27, 2016  Sequenom, Inc. (NASDAQ: ... to enabling healthier lives through the development of innovative ... of the United States denied ... that the claims of Sequenom,s U.S. Patent No. 6,258,540 ... eligibility criteria established by the Supreme Court,s Mayo Collaborative ...
Breaking Biology Technology:
Cached News: