InvestorsHub Logo

Join the InvestorsHub Community

Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.

Live Updating
profile icon
Golden Cross PremiumMember
01/16/20 1:47 AM
profile icon
THEGOOGLE5 Terminated
06/02/15 3:25 PM
profile icon
rodeofan Free
05/05/15 1:25 PM
profile icon
JimWood Free
04/29/15 8:22 PM
profile icon
JimWood Free
04/29/15 2:14 PM
profile icon
Exodus0001 Terminated
04/06/15 4:25 AM
profile icon
JimWood Free
04/03/15 8:43 AM
profile icon
WANG Free
04/01/15 1:48 PM
profile icon
JimWood Free
03/31/15 8:48 PM
profile icon
King Vegeta Terminated
03/29/15 8:21 PM
profile icon
JimWood Free
03/27/15 11:36 AM
profile icon
Chuckle Free
03/27/15 10:03 AM
profile icon
JimWood Free
03/27/15 10:03 AM
profile icon
rodeofan Free
03/18/15 3:05 PM
profile icon
JimWood Free
03/18/15 3:05 PM
profile icon
rodeofan Free
03/18/15 1:42 PM
profile icon
Chuckle Free
03/18/15 12:41 PM
profile icon
JimWood Free
03/18/15 10:40 AM
profile icon
rodeofan Free
03/17/15 9:20 PM
profile icon
rodeofan Free
03/17/15 12:32 PM
profile icon
WANG Free
03/17/15 11:36 AM
profile icon
JimWood Free
03/17/15 9:58 AM
profile icon
JimWood Free
03/17/15 9:51 AM
profile icon
JimWood Free
03/16/15 5:58 PM
profile icon
rodeofan Free
03/16/15 4:32 PM

ThermoEnergy Corporation (TMEN) RSS Feed

Followers
29
Posters
109
Posts (Today)
0
Posts (Total)
1060
Created
06/23/08
Type
Free
Moderators

ThermoEnergy Corporation

Worcester, MA 01606

Tel. 1-508-854-1628

Web Site: http://www.thermoenergy.com


ARP and Cast clean water solutions- Nitrogen & Ammonia recovery

Glycol recovery technologies for airports

Cost-Effective, Sustainable Solutions for Municipal and Industrial Wastewater Recovery


ZEBS® - Clean Combustion of Carbonaceous Fuels with No CO2 or other Air Emissions



Coal is America's cheapest and most abundant energy resource, projected to last for 250 years or longer. Our goal is to harness this vast resource, converting it into energy, in a clean and environmentally responsible manner, including the elimination of all air emissions and the capture of carbon dioxide. Babcock-Thermo Clean Combustion, LLC ("BTCC"), a limited liability company formed by subsidiaries of ThermoEnergy Corporation and Babcock Power Inc., has developed a patented new process to produce electricity and liquid CO2 from coal and potentially a diverse mix of energy resources that may include oil and biomass (including "waste" or "opportunity" fuels) with near zero air emissions of priority and toxic pollutants. This new process is known as ZEBS.®  ZEBS® represents a new thermodynamic approach in power plant design. Based on reliable oxycombustion chemistry it combines the combustion of carbonaceous fuels with essentially complete recovery of all by-products. The key element that differentiates ZEBS® from conventional oxycombustion is pressurization.

 
Significant economic and process benefits can be achieved by pressurizing the entire power plant flue gas system, including the boiler. Operating a power plant firing system at high pressure (i.e. between 700 and 1300 psi) allows for the utilization of higher-heating values in coal or other carbon fuels, and enables the CO2 in the flue gas to be captured as a liquid, so it is never emitted into the air. Other harmful chemical emissions such as NOx, SOx , mercury, and particulates are also captured this way and do not enter the atmosphere where they are detrimental to air quality. The captured CO2, which is already in clean, pressurized liquid form, is now a valuable commodity ready for shipment by pipeline, rail or truck for sequestration or beneficial use (e.g. enhanced oil recovery or coal-bed flooding to recover the methane). ZEBS® can be utilized as a low-cost alternative for new power plant construction or as a cost-effective method of repowering existing fossil fuel power plants.

Benefits of "Pressurized" Oxy-combustion
 
Combustion and emission control strategies of a pressurized oxy-combustion system like ZEBS® differs significantly from those employed at ambient conditions. The elevated system pressure enables the use of gas-to-liquid steam-hydroscrubbing to collect and remove pollutants and recover the latent heat from water entrained or produced in the combustion process by shifting the temperatures at which water, CO2, mercury and acid gases condense. This allows ZEBS® to recover the pollutants in the aqueous phase, including CO2 in clean pressurized liquid form ready for sequestration or beneficial reuse. In addition, pressurized oxycombustion is estimated to increase power plant efficiency between 5.5 and 6 percent over most atmospheric combustion technologies, including atmospheric oxycombustion. This is achieved in part due to the recovery of the energy entrained in the water vapor produced during combustion. The water vapor content of the flue gas can be over 40% by volume depending on the fuel. High pressure allows this vapor to be condensed at a much-higher temperature than would occur under atmospheric operating conditions. As a result, the thermodynamic quality of the condensing heat is high and can be used for high value purposes such as feed-water heating to improve power plant cycle efficiency.
 
Heat transfer correlations and modeling show 10 to 12 times greater overall heat transfer coefficient to boiler tubes than non-pressurized combustion methods. Since ZEBS® is a Rankine cycle-based technology, it benefits from the continued improvements in supercritical boiler technology and increased steam cycle efficiency. It can directly benefit from the advances being generated by the Department of Energy's ultra-supercritical materials program as well as advancements in oxygen production.
 
ZEBS® Has Tremendous Fuel Flexibility
 
The high oxygen partial pressure operating environment also increases char reaction rates resulting in high carbon burnout at reduced residence time. This, in combination with the flexibility of pulverized coal, makes the ZEBS ideally suited for a wide range of fuels, particularly low rank fuels with high moisture content such as subbituminous, lignite, and/or coal water slurries. Recovery of the heat of condensation of water vapor at useful temperatures, integrated pollution control and CO2 condensation at ambient temperature enable the system to mitigate the energy demands of carbon capture. It can be utilized for new generation on coal-fired plants with advanced steam parameters and has unique technical and cost advantages for repowering the United States' existing power fleet.
 
ZEBS® can be Up to 10 Times Smaller in Size Than Conventional Power Plants
 
Pressurized combustion also leads to a significant reduction in furnace volume and heat exchanger sizes compared to ambient air or oxygen fired systems. In addition to lower specific gas volumes, we have found significantly enhanced convective heat transfer rates due to pressure. In short, a ZEBS® power plant can be up to 10 times smaller than a conventional power plant of equal thermal output, providing significant capital cost advantages. In lower capital cost and much smaller footprint makes ZEBS® an ideal technology for repowering existing power plants.
 
ZEBS® can be integrated into existing power plants without shutdown
 
A ZEBS® power block can be added to an existing power plant without the need to take the existing boiler system offline. This means the power plant does not have to suffer the revenue losses associated with de-rating a plant while replacing an old conventional boiler system with a new one. ZEBS® promises to achieve carbon capture with superior fossil-fuel power plant thermal efficiency due to its novel and patented process design and is expected to have an economic and environmental advantage over competing carbon capture technologies.
 
 

 
Volume:
Day Range:
Last Trade Time:
  • 1D
  • 1M
  • 3M
  • 6M
  • 1Y
  • 5Y
TMEN Latest News
  • No Recent News Available for this company!
New Post