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Questions and Answers
Which of the following is a method for hydrogen production?
Which of the following is a method for hydrogen production?
Blue hydrogen production involves natural gas reforming with CO₂ capture.
Blue hydrogen production involves natural gas reforming with CO₂ capture.
True
What is the primary focus of the RICH Center?
What is the primary focus of the RICH Center?
Research and innovation on CO2 and hydrogen.
The process for producing grey hydrogen typically uses _____ as the primary feedstock.
The process for producing grey hydrogen typically uses _____ as the primary feedstock.
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Match the following hydrogen production methods with their corresponding definitions:
Match the following hydrogen production methods with their corresponding definitions:
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Which hydrogen storage option is commonly used for large-scale storage?
Which hydrogen storage option is commonly used for large-scale storage?
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Hydrogen can only be transported in its gaseous state.
Hydrogen can only be transported in its gaseous state.
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Name one application of hydrogen in fuel cells.
Name one application of hydrogen in fuel cells.
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Study Notes
Introduction to Hydrogen Technologies and Applications (CHEG 360) - FALL 2024
- Lecture 14: Hydrogen storage options - underground hydrogen storage (Ch6-1)
- Professor: Lourdes Vega, Chemical and Petroleum Engineering Department
- Director: Research and Innovation Center on CO2 and Hydrogen (RICH Center)
- Invited speaker: Abdelateef Adam, PhD student, Chemical and Petroleum Engineering Department
- Date: October 10, 2024
Hydrogen Storage Options
- Underground Hydrogen Storage (UHS): This lecture discussed various aspects of underground hydrogen storage.
- Different storage systems like saline aquifers, hydrocarbon reservoirs, rock caverns, and depleted salt caverns were explained.
- A multi-step natural gas storage process was described, including injection, cushion gas placement, and retrieval.
- Crucial steps in the natural gas storage process included injection of CH4, placement of CO2 cushion gas, and extraction of CH4 as working gas.
Hydrogen Storage Solutions
- Physical-based: Methods like compressed H2, cryo-compressed H2, and liquid H2 were discussed.
- Physiosorbents: Including metal organic frameworks (MOFs), carbon-based materials (CBMs), zeolites, and covalent organic frameworks (COFs) were highlighted.
- Material-based: This category covered liquid organic hydrogen carriers (LOHCS) and metal hydrides, focusing on chemistries that absorb hydrogen.
UHS - Storage Security
- Caprock: The significance of caprock in preventing hydrogen leakage was discussed
- Capillary pressure: The effect of capillary pressure on the storage and retention of hydrogen was presented.
- Wettability: The role of wettability was explored along with its effects on gas and brine interactions.
- Mixing zone: The characteristics of underground mixing zones were studied, and their impact on hydrogen storage.
Molecular Simulations
- Force field selection: The approach to modeling hydrogen interactions within pore structures through Lennard-Jones potential and Coulomb Law.
- Methods: Molecular simulation methods like TIP4P/2005 water model and TraPPE CO2 and two-site H2 models.
Results - Contact Angle Calculations
- Analysis of contact angle trends at different temperatures, illustrating changes in the interaction between gases and subsurface materials.
Results - Molecular Analysis
- Radial Distribution Function (RDF): Plots of CO2 and water distribution within the pore structures at different temperatures.
Results - Reservoir Scale Analysis
- Capillary Entry Pressure: This was explored to understand how CO2 or other gases can impact entry pressure, possibly leading to better hydrogen trapping.
- Results indicated that high CO2 surface interactions within porous structures in underground reservoirs could decrease capillary entry pressure for hydrogen.
Take-Home Messages
- Interaction impact between H2 and CO2 in carbonate formations at lower temperatures.
- Caprock properties influence H2 storage security when using CO2 as a cushion gas.
- CO2 as a filling medium for smaller pores and impact on H2 recovery.
Research Supervision and Funding
- Details about the researchers on the study, their affiliations, and funding source.
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Description
This quiz covers the key concepts from Lecture 14 on underground hydrogen storage methods. Topics include various storage systems such as saline aquifers and rock caverns, as well as the multi-step natural gas storage process. Prepare to test your knowledge on the intricacies of hydrogen storage options.
