Discussion of the Influence of CO and CH4 in CO2 Transport, Injection, and Storage for CCS Technology

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• 作者：Sof铆a T. Blanco ; Clara Rivas ; Ram贸n Bravo ; Javier Fern谩ndez ; Manuela Artal ; Inmaculada Velasco
• 刊名：Environmental Science & Technology
• 出版年：2014
• 出版时间：September 16, 2014
• 年：2014
• 卷：48
• 期：18
• 页码：10984-10992
• 全文大小：388K
• ISSN：1520-5851

文摘

This paper discusses the influence of the noncondensable impurities CO and CH₄ on Carbon Capture and Storage (CCS) technology. We calculated and drew conclusions about the impact of both impurities in the CO₂ on selected transport, injection, and storage parameters (pipeline pressure drop, storage capacity, etc.), whose analysis is necessary for the safe construction and operation of CO₂ pipelines and for the secure long-term geological storage of anthropogenic CO₂. To calculate these parameters, it is necessary to acquire data on the volumetric properties and the vapor鈥搇iquid equilibrium of the fluid being subjected to CCS. In addition to literature data, we used new experimental data, which are presented here and were obtained for five mixtures of CO₂+CO with compositions characteristic of the typical emissions of the E.U. and the U.S.A. Temperatures and pressures are based on relevant CO₂ pipeline and geological storage site values. From our experimental results, Peng鈥揜obinson, PC-SAFT, and GERG Equations of State for were validated CO₂+CO under the conditions of CCS. We conclude that the concentration of both impurities strongly affects the studied parameters, with CO being the most influential and problematic. The overall result of these negative effects is an increase in the difficulties, risks, and overall costs of CCS.