Effects of impurities on CO2 transport, injection and storage

Wang, Jinsheng; Ryan, David K.; Anthony, Edward J.; Wildgust, Neil; Aiken, Toby

doi:10.1016/j.egypro.2011.02.219

Cited by 97 publications

(62 citation statements)

References 7 publications

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“…Sass et al (2005) identified a large variety of potential impurities in the CO 2 source streams for a number of typical CO 2 sources (Table 2). Wang et al (2010) indicates that oxygen (O 2 ) (in addition to N 2 , SO 2 , and H 2 S) can have negative effects on transport, injection, and storage of CO 2 . Wang et al (2010) found that O 2 and N 2 had the greatest effect on increasing saturation pressure of the liquid and decreasing critical temperatures, but that SO 2 decreases the saturation pressure and increases the critical temperature.…”

Section: Impurities/co-contaminants In Co 2 Captured For Geologic Seqmentioning

confidence: 99%

“…Wang et al (2010) indicates that oxygen (O 2 ) (in addition to N 2 , SO 2 , and H 2 S) can have negative effects on transport, injection, and storage of CO 2 . Wang et al (2010) found that O 2 and N 2 had the greatest effect on increasing saturation pressure of the liquid and decreasing critical temperatures, but that SO 2 decreases the saturation pressure and increases the critical temperature. In addition, O 2 , N 2 , and H 2 significantly reduce the density of supercritical CO 2 and the solubility of CO 2 in brine by reducing the partial pressure of CO 2 ; both of these effects reduce the overall capacity of the storage reservoir.…”

Section: Impurities/co-contaminants In Co 2 Captured For Geologic Seqmentioning

confidence: 99%

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Identification and Selection of Major Carbon Dioxide Stream Compositions

Schmick¹

2011

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A critical component in the assessment of long-term risk from geologic sequestration of carbon dioxide (CO 2 ) is the ability to predict mineralogical and geochemical changes within storage reservoirs as a result of rock-brine-CO 2 reactions. Impurities and/or other constituents in CO 2 source streams selected for sequestration can affect both the chemical and physical (e.g., density, viscosity, interfacial tension) properties of CO 2 in the deep subsurface. The nature and concentrations of these impurities are a function of both the industrial source(s) of CO 2 , as well as the carbon capture technology used to extract the CO 2 and produce a concentrated stream for subsurface injection and geologic sequestration.This report summarizes the relative concentrations of CO 2 and other constituents in exhaust gases from major non-energy-related industrial sources of CO 2 . Assuming that carbon capture technology would remove most of the incondensable gases N 2 , O 2 , and Ar, leaving SO 2 and NO x as the main impurities, the authors of this report selected four test fluid compositions for use in geochemical experiments. These included the following: 1) a pure CO 2 stream representative of food-grade CO 2 used in most enhanced oil recovery projects; 2) a test fluid composition containing low concentrations (0.5 mole %) SO 2 and NO x (representative of that generated from cement production); 3) a test fluid composition with higher concentrations (2.5 mole %) of SO 2 ; and 4) test fluid composition containing 3 mole % H 2 S. v

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Section: Impurities/co-contaminants In Co 2 Captured For Geologic Seqmentioning

confidence: 99%

Section: Impurities/co-contaminants In Co 2 Captured For Geologic Seqmentioning

confidence: 99%

Identification and Selection of Major Carbon Dioxide Stream Compositions

Schmick¹

2011

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“…However, to the best of our knowledge, most studies on the effect of SO 2 have been performed in rocks containing Ca-rich minerals (e.g., calcite and anorthite), easily buffering the pH [4,6,8,[12][13][14][15][16]. These studies showed that SO 2 did not largely influence the alteration of reservoir rocks because pH was quickly buffered enough to prevent significant dissolution of silicate minerals.…”

Section: Introductionmentioning

confidence: 97%

“…However, the coinjection of impurities not only corrodes injection facilities, such as pipelines and injection wells, but also adversely affects CO 2 injectivity [2,5,6]. Among these impurities, coinjection of even a small amount of SO 2 extremely acidifies the groundwater due to formation of sulfuric acid, which accelerates the dissolution/precipitation of minerals in reservoir rocks [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Impact of SO₂ on Alteration of Reservoir Rock with Ca-Deficient Conditions and Poor Buffering Capacity under a CO₂ Geologic Storage Condition

et al. 2018

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The objective of this study is to evaluate the impact of SO 2 -CO 2 -water-rock interaction on the alteration of a reservoir rock having Ca-deficient conditions and little buffering capacity and its implication for porosity change near the injection well from a CO 2 storage pilot site, Republic of Korea. For our study, three cases of experimental and geochemical modeling were carried out (pure CO 2 , 0.1% SO 2 in CO 2 , and 1% SO 2 in CO 2 , resp.) under realistic geologic storage conditions. Our results show that SO 2 accelerated waterrock interactions by lowering the pH. In the 1% SO 2 case, pH remained less than 2 during the experiments because of insufficient buffering capacity. Sulfate minerals were not precipitated because of an insufficient supply of Ca. Because the total volume of precipitated secondary minerals was less than that of the dissolved primary minerals, the porosity of rock increased in all cases. Chlorite largely contributed to the decrease in total rock volume although it formed only 4.8 wt.% of the rock. Our study shows that the coinjection of a certain amount of SO 2 at CO 2 storage reservoirs without carbonate and Ca-rich minerals can significantly increase the porosity by enhancing water-rock interactions. This procedure can be beneficial to CO 2 injection under some conditions.

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“…Several studies highlighted that various issues should be considered when it comes to the transport of captured CO 2 containing impurities, such as operating pressure, repressurisation intervals and pipe integrity . This is irrespective of the mode of transport, whether in gaseous, liquid or supercritical phases across a difficult terrain [15,16,32,[36][37][38][39][40].…”

Section: Overview Of Co 2 Transport Via Pipelinesmentioning

confidence: 99%

A systematic review of key challenges of CO2 transport via pipelines

Onyebuchi

Kolios

Hanak

et al. 2018

Renewable and Sustainable Energy Reviews

138

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Transport of carbon dioxide (CO 2 ) via pipeline from the point of capture to a geologically suitable location for either sequestration or enhanced hydrocarbon recovery is a vital aspect of the carbon capture and storage (CCS) chain. This means of CO 2 transport has a number of advantages over other means of CO 2 transport, such as truck, rail, and ship. Pipelines ensure continuous transport of CO 2 from the capture point to the storage site, which is essential to transport the amount of CO 2 captured from the source facilities, such as fossil fuel power plants, operating in a continuous manner. Furthermore, using pipelines is regarded as more economical than other means of CO 2 transportThe greatest challenges of CO 2 transport via pipelines are related to integrity, flow assurance, capital and operating costs, and health, safety and environmental factors. Deployment of CCS pipeline projects is based either on point-to-point transport, in which case a specific source matches a specific storage point, or through the development of pipeline networks with a backbone CO 2 pipeline. In the latter case, the CO 2 streams, which are characterised by a varying impurity level and handled by the individual operators, are linked to the backbone CO 2 pipeline for further compression and transport. This may pose some additional challenges.This review involves a systematic evaluation of various challenges that delay the deployment of CO 2 pipeline transport and is based on an extensive survey of the literature. It is aimed at confidence-building in the technology and improving economics in the long run. Moreover, the knowledge gaps were identified, including lack of analyses on a holistic assessment of component impurities, corrosion consideration at the conceptual stage, the effect of elevation on CO 2 dense phase characteristics, permissible water levels in liquefied CO 2 , and commercial risks associated with project abandonment or cancellation resulting from high project capital and operating costs.2

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Effects of impurities on CO2 transport, injection and storage

Cited by 97 publications

References 7 publications

Identification and Selection of Major Carbon Dioxide Stream Compositions

Identification and Selection of Major Carbon Dioxide Stream Compositions

Impact of SO₂ on Alteration of Reservoir Rock with Ca-Deficient Conditions and Poor Buffering Capacity under a CO₂ Geologic Storage Condition

A systematic review of key challenges of CO2 transport via pipelines

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Effects of impurities on CO2 transport, injection and storage

Cited by 97 publications

References 7 publications

Identification and Selection of Major Carbon Dioxide Stream Compositions

Identification and Selection of Major Carbon Dioxide Stream Compositions

Impact of SO2 on Alteration of Reservoir Rock with Ca-Deficient Conditions and Poor Buffering Capacity under a CO2 Geologic Storage Condition

A systematic review of key challenges of CO2 transport via pipelines

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Impact of SO₂ on Alteration of Reservoir Rock with Ca-Deficient Conditions and Poor Buffering Capacity under a CO₂ Geologic Storage Condition