A Review on CO 2 Capture Technologies with Focus on CO 2 -Enhanced Methane Recovery from Hydrates

Salvatore F. Cannone, Andrea Lanzini and Massimo Santarelli
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Salvatore F. Cannone: Energy Department, Politecnico di Torino, Via Duca degli Abruzzi 24, 10129 Torino, Italy
Andrea Lanzini: Energy Department, Politecnico di Torino, Via Duca degli Abruzzi 24, 10129 Torino, Italy
Massimo Santarelli: Energy Department, Politecnico di Torino, Via Duca degli Abruzzi 24, 10129 Torino, Italy

Energies, 2021, vol. 14, issue 2, 1-32

Abstract: Natural gas is considered a helpful transition fuel in order to reduce the greenhouse gas emissions of other conventional power plants burning coal or liquid fossil fuels. Natural Gas Hydrates (NGHs) constitute the largest reservoir of natural gas in the world. Methane contained within the crystalline structure can be replaced by carbon dioxide to enhance gas recovery from hydrates. This technical review presents a techno-economic analysis of the full pathway, which begins with the capture of CO 2 from power and process industries and ends with its transportation to a geological sequestration site consisting of clathrate hydrates. Since extracted methane is still rich in CO 2 , on-site separation is required. Focus is thus placed on membrane-based gas separation technologies widely used for gas purification and CO 2 removal from raw natural gas and exhaust gas. Nevertheless, the other carbon capture processes (i.e., oxy-fuel combustion, pre-combustion and post-combustion) are briefly discussed and their carbon capture costs are compared with membrane separation technology. Since a large-scale Carbon Capture and Storage (CCS) facility requires CO 2 transportation and storage infrastructure, a technical, cost and safety assessment of CO 2 transportation over long distances is carried out. Finally, this paper provides an overview of the storage solutions developed around the world, principally studying the geological NGH formation for CO 2 sinks.

Keywords: carbon capture and storage (CCS); CO 2 replacement; CO 2 capture; CO 2 transportation; CO 2 storage; natural gas; gas hydrate; sustainability; membrane technology; economic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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