Abstract
Abstract The cost of CO 2 removal from natural gas with subsequent storage is estimated and the results show that it can be very close to an economically viable process. The cost of removing CO 2 from a natural gas stream(sweetening) using the MDEA process is 30% lower than cost of conventional amine MEA technology for CO 2 capture from flue gas, putting this project at a much lower cost than capture from most other industrial CO 2 sources. The cost of CO 2 removal is as low as 35€/tonne. In addition natural gas sweetening projects will capture potentially larger volumes of CO 2 than many industrial projects if new large gas fields are developed. The large scale could provide the necessary amount and steady supply of CO 2 needed to kick-start the deployment of CCS. This could happen either by allowing a large-scale offshore central CO 2 storage or offshore EOR projects. Large scale storage would reduce the storage cost for CO 2 improving the cost benefit situation for a CCS project. A large scale EOR project could create a market for CO 2 in the Nordic region that also land-based industry can sell to thereby reducing their costs for CCS sufficiently to allow industrial CCS projects to start.
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