Simulating the Use of Hydrogen Peroxide in Diesel Autothermal Reforming: A Comparative Study
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Thesis-Dissertation-Word-Ali Alhussain-Final Submission.pdf
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MS Thesis
Type
ThesisAuthors
Alhussain, Ali S.
Advisors
Dally, Bassam
Committee members
Grande, Carlos A.
Sarathy, Mani

Program
Chemical EngineeringKAUST Department
Physical Science and Engineering (PSE) DivisionDate
2023-08Permanent link to this record
http://hdl.handle.net/10754/693767
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This thesis reports the outcome of a simulation study that examines the feasibility of using hydrogen peroxide as an alternative oxidant in the autothermal reforming (ATR) of diesel. The primary objective is to compare hydrogen peroxide's performance against conventional oxidants in reforming, focusing on product distribution and three pivotal process properties: diesel conversion, hydrogen production, and ethylene generation. The study further investigates the influence of the heat of decomposition on the performance and reaction routes of different oxidants. Additionally, a comparative analysis is conducted on the reforming performance in different reformer configurations, specifically contrasting a combined-reformer-configuration with a catalytic-reformer configuration. The ANSYS Chemkin-Pro is utilized to understand the potential benefits and challenges of the proposed approached. A reduced chemical mechanism of N-heptane/Toluene reforming as a surrogate for diesel, combined with a detailed surface reaction mechanism of propene on a three-way Pt/Rh catalyst are used in this study. It is found that the use of hydrogen peroxide as an oxidant demonstrated a complete fuel conversion and 183% higher hydrogen yield when compared with conventional oxidants. It also led to a 12% lower generation of ethylene, a precursor for coke formation. The catalytic-reformer configuration showed superior performance over the combined-reformer-configuration in terms of hydrogen yield. The insights from this study offer valuable perspectives on the feasibility and efficiency of using hydrogen peroxide as an alternative oxidant in the ATR of diesel, paving the way for potential advancements in the field.ae974a485f413a2113503eed53cd6c53
10.25781/KAUST-E4PY2