Co2 Storage In Coal Can Be Predicted Better

ENERGY TECH

General illustration only of Co2 sequestration processes.

by Staff Writers
Amsterdam, Netherlands (SPX) Apr 17, 2007
CO2 storage in the ground is being considered increasingly more often in order to realise the climate and energy objectives. Dutch researcher Saikat Mazumder made it possible to better predict routes of the 'underground highways' along which gasses like carbon dioxide (CO2) and methane (CH4) will move. Moreover, coal was found to be highly suitable for filtering carbon dioxide out of waste gasses and storing it.

The 'Enhanced Coalbed Methane process' kills two birds with one stone: carbon dioxide (CO2) is stored in coal seams in the ground and at the same time methane (CH4) is obtained from the process. To optimise this process it is important to know how coal retains and stores some fluids and gasses whilst allowing others through.

The network of cracks is essential for this. Mazumder developed a measuring technique using CT scans that led to an improved understanding of the patterns of cracks. He also did experiments with waste gas and pure CO2 to determine the uptake capacity of single and multi-component gasses. In both wet and dry experiments, CO2 was strongly absorbed and CH4 was released.

This methane production in a coal seam can vary over the course of time. Mazumder developed two estimating methods to gain a better understanding of this. When used together these could generate good predictions.

Problems due to swelling
The research revealed that a considerable quantity of CO2 could be removed from waste gas by allowing it to be adsorbed onto coal under high-pressure. According to Mazumder this means that the injection of waste gas into coal seams can be applied to filter out CO2 on an industrial scale and to retain it.

Mazumder also carried out a preliminary study into the decrease in porosity and permeability as a consequence of coal swelling due to the injection of CO2. The decrease in the permeability can give rise to serious injection problems in the area of the well into which CO2 is injected.

The doctoral research 'Dynamics of CO2 in Coal as a Reservoir' was, amongst other things, part of the programme 'Transition to sustainable use of fossil fuels' funded by the NWO/SenterNovem Stimulation Programme Energy Research. The programme aims to develop knowledge in the natural and social sciences for the transition to a sustainable energy supply.

Memory Foam Mattress Review

SPACE MEDIA NETWORK PROMOTIONS
Solar Energy Solutions
Tempur-Pedic Mattress Comparison ...

Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

ENERGY TECH

Shanghai To Shut Down 29 Coal Power Plants By 2010

Shanghai (AFP) April 13, 2007
China's financial hub Shanghai plans to shut 29 coal-fired power plants by 2010 in a renewed bid to reduce environmentally damaging carbon emissions, state press reported Friday.

AEROSPACE Nondestructive Testing Keeps Bagram Aircraft Flying New FAA Oceanic Air Traffic System Designed By Lockheed Martin Fully Operational NASA Seeks New Research Proposals Germans Urged To Give Foreign Travel A Rest To Curb Global Warming	CAR TECH Driverless Car Goes On Show In London Made In USA Losing Cachet Technique Creates Metal Memory And Could Lead To Vanishing Dents Toyota Anticipates Sharp Increase In Its Hybrid Sales
MILITARY COMMUNICATIONS Raytheon To Supply Canada With Enhanced Position Location Reporting System Terminals Intelsat To Test Internet Routing In Space For The US Military Northrop Grumman And LockMart Team Up For Integrated Air And Missile Defense Battle Command Harris Donates OS/COMET For Use In FalconSAT Program	MISSILE DEFENSE Czech MPs Visit US Radar Base Earmarked For Missile Shield Oslo Clash On ABM Raytheon Receives Contracts For Patriot Missile Facility Support Russia Targets Counteroffensive Against ABM
FARM NEWS Winter Flounder On The Fast Track To Recovery Satellite Images Aid Implementation Of Agricultural Reforms Farmland Across China At Risk From Pollution Anthropologist Finds Earliest Evidence Of Maize Farming In Mexico	DISASTER MANAGEMENT Wireless Sensors Limit Earthquake Damage Tsunami Emergency In Solomons Declared Over DigitalGlobe And GeoEye Partner With The USGS In Support Of International Charter Philippine Survivors Left Feeling Forgotten
TECH SPACE Sri Lanka Tigers Deny Using Satellite Illegally Northrop Grumman Selected For Alternative Satellite Research And Development Effort Raytheon Receives Approval For Precision Placement Of NPOESS Antennae In Antarctica A Feather-Light Touch Needed For Darwin Frictionless Optics	ROBO SPACE Top Robotics Teams To Rack And Roll Atlanta Georgia Dome Assistive Robot Adapts To People And New Places Flexible Electronics Could Find Applications As Sensors And Artificial Muscles Machine Shop Keeps Robots Rolling

The content herein, unless otherwise known to be public domain, are Copyright Space.TV Corporation. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space.TV Corp on any Web page published or hosted by Space.TV Corp. Privacy Statement