Header menu link for other important links
X

Effect of silica sand size on the formation kinetics of CO2 hydrate in porous media in the presence of pure water and seawater relevant for CO2 sequestration

Prathyusha Mekala, Marc Busch, Deepjyoti Mech, Rachit S. Patel,
Published in Elsevier B.V.
2014
Volume: 122
   
Pages: 1 - 9
Abstract
Understanding the kinetics of carbon dioxide (CO2) hydrate formation in pure water, seawater and porous media aids in developing technologies for CO2gas storage, carbon capture and sequestration (CCS) and potentially for methane production from methane hydrates. The present work is focused on understanding the kinetics of CO2hydrate formation in pure water and seawater at an initial formation pressure of 6MPa (providing a driving force of about 4.0MPa) and a formation temperature of 276.15K with 75% water saturation in three silica sand particle sizes (0.16mm, 0.46mm and 0.92mm). The seawater (3.3wt% salinity) used in the present study is obtained from sea coast of Chennai (India). It is observed that the gas consumption of CO2in hydrate is more for smaller silica sand particle and decreases as the size of the sand increases. The total gas consumed at the end of the seawater experiment is found to be less than the gas consumed at the end of the pure water experiment. This is due to the fact that salts in seawater act as a thermodynamic inhibitor resulting in lower gas consumption of CO2in hydrate. The average rate of hydrate formation observed is optimum in 0.46mm particles and is observed to be higher as compared to 0.16 and 0.92mm particles over 10h experimental time. This indicates that 0.46mm silica sand provides an optimum environment for efficient hydrate formation. The study can be useful to understand the suitability of potential sandstone reservoir for CO2sequestration in the form of hydrate in the presence of saline formation water. © 2014 Elsevier B.V.
About the journal
JournalData powered by TypesetJournal of Petroleum Science and Engineering
PublisherData powered by TypesetElsevier B.V.
Open AccessNo
Concepts (31)
  •  related image
    Carbon capture
  •  related image
    Gas hydrates
  •  related image
    Gases
  •  related image
    Hydration
  •  related image
    Kinetics
  •  related image
    Methane
  •  related image
    Porous materials
  •  related image
    SALINE WATER
  •  related image
    Sand
  •  related image
    SEAWATER
  •  related image
    Silica
  •  related image
    Silica sand
  •  related image
    Carbon capture and sequestrations
  •  related image
    Carbon sequestration
  •  related image
    FORMATION KINETICS
  •  related image
    FORMATION PRESSURE
  •  related image
    FORMATION TEMPERATURE
  •  related image
    METHANE PRODUCTION
  •  related image
    SANDSTONE RESERVOIRS
  •  related image
    THERMODYNAMIC INHIBITORS
  •  related image
    Carbon dioxide
  •  related image
    Formation mechanism
  •  related image
    GAS HYDRATE
  •  related image
    Porous medium
  •  related image
    Reaction kinetics
  •  related image
    RESERVOIR ROCK
  •  related image
    Sandstone
  •  related image
    Thermodynamics
  •  related image
    CHENNAI
  •  related image
    India
  •  related image
    Tamil nadu