French research on combining CO2 storage with geothermal heat extraction
CO2Dissolve project sample graphic screenshot (source: BRGM)
Alexander Richter
28 Sep 2016
Under the coordination of French BRGM, a research group is exploring a demonstration project that would combine CO2 storage with geothermal heat extraction.
A French research group is looking at storing dissolved CO2 in saline aquifers close to industrial emissions sources. The “CO2Dissolved” project is researching this as a promising alternative to large scale storage.
BRGM, the French Geological Survey BRGM is coordinating this research with 7 partners (mostly from France, but also with a German and U.S. partner), with the plan to demonstrate the feasibility of combining the storage of dissolved CO2 in an aquifer with the extraction of geothermal heat.
As project manager Christophe Kervévan explains in an article on the BRGM website: “This solution has several advantages. The idea is to store the CO2 produced by an industrial facility on the same site by injecting it in dissolved form into an underlying deep saline aquifer. The water is pumped up and subsequently reinjected with the dissolved CO2 through one “injection” and one “production” well, similar to the geothermal doublets used to supply heating networks.” In situ CO2 storage would reduce both the costs and risks of transporting the gas, which, in addition to heat recovery, makes this an attractive solution, subject to the existence of suitable aquifers in the right location and proper control of the process.
For further details see link below.
Source: BRGM
