Paper Number
GR1 

Session
Gallery of Rheology Contest

Title
Hydrate tree

Presentation Date and Time
October 16, 2024 (Wednesday) 6:30

Track / Room
Gallery of Rheology / Waterloo 3 & 4

Authors (Click on name to view author profile)

  1. Marin Castaño, Eliana P. (PUC-Rio)
  2. Rodrigues da Costa Moraes, Lorena (PUC-Rio)
  3. Ribeiro Varges, Priscilla (PUC-Rio)
  4. de Souza Mendes, Paulo R. (Pontificia Universidade Catolica do Rio de Janeiro, Department of Mechanical Engineering)
  5. Naccache, Monica F. (Pontificia Universidade Catolica do Rio de Janeiro, Department of Mechanical Engineering)

Author and Affiliation Lines (in printed abstract book)
Eliana P. Marin Castaño, Lorena Rodrigues da Costa Moraes, Priscilla Ribeiro Varges, Paulo R. de Souza Mendes and Monica F. Naccache
Department of Mechanical Engineering, Pontificia Universidade Catolica do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro 22451-900, Brazil

Speaker / Presenter 
Ribeiro Varges, Priscilla

Keywords
experimental methods; interfacial rheology

Text of Abstract
Hydrates are crystalline compounds formed by water molecules that encapsulate gas molecules under specific pressure and temperature conditions, creating ice-like structures. In the context of Carbon Capture and Storage (CCS), understanding the rheology of these hydrates is crucial for predicting and managing their behavior in pipelines and storage sites. These images capture the formation of synthetic hydrates using cyclopentane and water at 4°C, observed within a Double Wall Ring (DWR) geometry in a rotational rheometer. Due to the directional nature of the crystal growth, under these controlled conditions, the hydrates take on the appearance of a miniature tree, showcasing the delicate and intricate structures that emerge. The nucleation begins at the interface, highlighting the importance of measuring interfacial rheology. The micrographs, taken with a scanning electron microscope (SEM) using a cryogenic system, offer a closer look at these structures, providing valuable insights into the hydrate growth process and their implications for flow assurance in different industrial applications.