Chemical looping : a platform for GHG-free hydrogen and carbon monoxide production
Abstract/Contents
- Abstract
- The world energy consumption will likely rise from 584 ExaJoules (EJ) today to more than 800 EJ by 2040. The industrial sector in non-OECD countries is predicted to account for ~20% of this energy usage due to rapid growth in GDP in these countries. As a result, the need for energy will increase because of the demand for construction materials, fertilizers plants, refineries, long-term energy storage facilities and others. If zero emissions technologies are not available when these plants are built, investors and developers will find themselves with no choice but to commit to another cycle of investment in emissions-intensive assets, which run the risking of becoming stranded in the future. The use of a "clean" fuel to target the greenhouse gas emissions produced by hard-to-abate sectors is a promising solution. Hydrogen has been proposed as the ideal candidate1, but the production of carbon-free hydrogen at scale has been a challenge. Today, hydrogen is almost entirely supplied from fossil fuels ("brown hydrogen"), thus annually consuming approximately 6% of natural gas and 2% of coal globally. Capturing and sequestering these CO2 emissions turns them into blue hydrogen but increases their costs. This dissertation focuses on material design strategies, thermodynamic driving forces and technoeconomics of chemical looping processes such as thermochemical water splitting, thermochemical CO2 splitting, methane-assisted chemical looping hydrogen production, and reverse-water gas shift chemical looping. The ultimate goal is to connect the understanding from materials level to systems level. These discoveries related to thermodynamics, new materials and new system-level insights may not only advance the field of chemical looping but could also improve other areas of chemical engineering.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2021; ©2021 |
| Publication date | 2021; 2021 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Rojas Herrera, Jimmy Andrey |
|---|---|
| Degree supervisor | Majumdar, Arunava |
| Thesis advisor | Majumdar, Arunava |
| Thesis advisor | Cargnello, Matteo |
| Thesis advisor | Chueh, William |
| Degree committee member | Cargnello, Matteo |
| Degree committee member | Chueh, William |
| Associated with | Stanford University, Department of Mechanical Engineering |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Jimmy Andrey Rojas Herrera. |
|---|---|
| Note | Submitted to the Department of Mechanical Engineering. |
| Thesis | Thesis Ph.D. Stanford University 2021. |
| Location | https://purl.stanford.edu/vj615mc2217 |
Access conditions
- Copyright
- © 2021 by Jimmy Andrey Rojas Herrera
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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