Claim: Safe long term storage of CO2 is possible

From the GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre , probably too little too late, as CO2 sequestration projects worldwide are closing.

Conclusion of an international project for the geological storage of carbon dioxide

CO2CARE-Projekte[1]

Potsdam, 07.11.2013 | At the final conference of the EU project CO2CARE – CO2 Site Closure Assessment Research – at the GFZ German Research Centre for Geosciences from 04 to 06 November 2013 more than 60 experts from academia, industry and regulatory authorities from 13 countries discussed technologies and procedures for a safe and sustainable closure of geological CO2 storage sites.

Since 2004, GFZ investigates in an international research network the geological storage of the greenhouse gas. “Our work at the Ketzin site has shown that and how geological CO2 storage on a pilot scale can be done safely and reliably,” summarized Axel Liebscher, project coordinator and head of the Center for Geological Storage (CGS) at the GFZ, the results of the meeting.

“The knowledge gained in the project CO2CARE and newly developed procedures and technologies are a key step forward to implement the requirements of the EU Directive (DIRECTIVE 2009/31/EC) for geological storage of CO2 in national CCS laws and to ensure a safe and sustainable closure of geological CO2 storage sites.”

The CO2CARE EU project, coordinated by the GFZ, combined experimental laboratory and field research as well as numerical simulations in an integrated approach and tested and developed technologies and methodologies. The result is that the three main requirements of the EU Directive for the transfer of responsibility to the appropriate regulatory body can be met: modelled behavior conforms with the observed behavior of the injected CO2, there is no detectable leakage, and the storage site is evolving towards a situation of long-term stability.

The key component of the CO2CARE project is the site-based research with an international portfolio of nine CO2 storage projects. In addition to Sleipner in Norway and K12-B in the Netherlands, the Ketzin pilot site operated by GFZ is one of three sites for which in the framework of CO2CARE the closure and the transfer of responsibility to the regulatory authority was theoretically developed. At the Ketzin pilot site the storage of CO2 was terminated in August 2013 after more than 5 years of successful operation. Axel Liebscher: “By now the post-injection phase has begun and the Ketzin pilot site will be the first site which will be closed within a scientific project. The results of the CO2CARE project will be implemented here directly.”

Due to the continuing increase in world energy demand, especially in countries such as China, India and Brazil, and the use of fossil fuels the CCS technology will continue to play a central role in the global reduction of CO2 emissions. For Germany, it is especially also an option to avoid so-called process-related emissions from steel, cement and chemical industries. “Only if we can also demonstrate the safe and permanent closure of CO2 storage sites in addition to the safe operation, CCS is able to develop its potential,” Axel Liebscher concluded.

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More information can be found under: http://www.co2care.org.

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james griffin
November 9, 2013 6:27 am

Friends…fellow sceptics…it is now getting too funny for words. Only two options worthwhile and they are leave it alone in the atmosphere or convert to beer. Anthony, please conduct e a poll…haha!

November 9, 2013 6:43 am

CRS, DrPH says:
November 8, 2013 at 7:15 pm
“When the final engineering problems for conversion of carbon dioxide into polymers, fuels etc. are resolved, there will be a run on the stuff that will make heads spin.”
Yeah, it actually is possible to make best fuels from carbon dioxide and water by reverse burning, only what is needed is energy. Which could be long time ago provided by liquid fuel nuclear reactors, which we have fuel for whole remaining existence of this planet. Only problem is the politics and that it must be quick – there’s not much time left, the fossil carbon and hydrocarbon known and probable reserves are there just for couple of decades wiith current consumption.

Chad Wozniak
November 9, 2013 10:09 am

Pumping too much CO2 into one underground reservoir could conceivably risk another Lake Nyos disaster, if the containment in the reservoir were to fail (Lake Nyos was the lake in Africa that suddenly released huge volumes of trapped CO2, smothering about 1,700 people in the surrounding area). Not only costly, but supremely irrational and just plain stupid.
@tumes – No, fracking has revealed at least 200-300 years’ additional supply of natural gas and oil, and at least that much coal was already known to be on hand. That gives us rather more time to develop fuels- particularly hydrogen – that are sustainable (unlike wind, solar, or biomass which will NEVER provide enough energy to power a modern industrial civilization.

Richard G
November 9, 2013 10:38 am

I see that they have cleverly misspelled their acronym: “CO2 Site Closure Assessment Research” should be CO2SCARE. Truth in advertising.
“Potsdam, 07.11.2013 | At the final conference of the EU project CO2CARE – CO2 Site Closure Assessment Research –”

November 9, 2013 10:45 am

Gail Combs says:
November 8, 2013 at 3:37 pm

Robert of Ottawa says:
November 8, 2013 at 2:49 pm
Isn’t limestone a good way to store CO2?….

Not if it is wet. Water plus CO2 is how caves are formed.

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A common type of municipal water softening is lime/soda.
Hardness in water is primarily from dissolved calcium bicarbonates.
Lime converts the very soluble bicarbonates to very insoluble carbonates.
Some of the carbonates do dissolve and will likely settle out and form scale in the distribution system. To prevent this, the remaining carbonates (most will have settled out and been removed in the treatment process) are converted back into bicarbonates using CO2.
The lime comes from limestone (primarily calcium carbonate) that has been mined, crushed and burned to drive off the CO2. (This leaves calcium oxide, “lime”.)
Where I live the CO2 used to convert the remaining calcium carbonate back into calcium bicarbonate comes from the production of ethanol.
Who would have thought that promotion of the bio-fuel ethanol to reduce CO2 actually produces CO2?

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