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Shidong Zhao, Speaker at Catalysis Conferences
China University of Petroleum, China
Title : Kinetics of hydrogenation of dibenzyltoluene as hydrogen storage carrier

Abstract:

Hydrogen energy is a pollution-free and efficient energy, but safe and efficient hydrogen storage technology is the key to realize the utilization of hydrogen energy. Liquid organic hydrogen carrier (LOHC) technology is more efficient in terms of safety and storage and transportation efficiency. As an industrially mature heat transfer oil, dibenzyltoluene (DBT) can be perfectly applied to the current mode of transportation of petroleum products, and has more advantages as a hydrogen storage liquid. In this paper, dibenzyltoluene was used as an organic liquid hydrogen carrier to study the hydrogenation kinetics of dibenzyltoluene on ruthenium catalyst. The apparent kinetic model was established by analyzing the influence of reaction temperature, pressure, catalyst dosage and other process parameters on the mass transfer reaction process. The study shows that the initial reaction stage is a first-order reaction, and the main reaction resistance is the reaction resistance on the solid surface of the catalyst.

Audience Take Away: 

  • Dibenzyltoluene hydrogenation over Ru/Al2O3 catalyst was studied in the temperature range 110–150 °C and the pressure range 3.0–5.0 MPa. The whole reaction process is controlled by the surface reaction of the catalyst particles.
  • The mass transfer resistance at gas–liquid interface and that from the bulk liquid phase to the surface of the catalyst particles can be ignored.
  • The apparent activation energy of dibenzyltoluene hydrogenation at the initial stage of the reaction is 9.992 kJ/mol. This is lower than the activation energy of complete hydrogenation of dibenzyltoluene.

Biography:

Shidong Zhao studied chemical engineering and technology at China University of Petroleum (East China), graduated with a bachelor's degree in engineering in 2009, and then worked in Shandong Chambroad Petrochemicals Co.,Ltd. In 2017, he was admitted to the Department of Chemistry at China University of Petroleum (East China) to study for a master's degree in chemistry. In 2019, he became a doctoral candidate of Professor Xufeng Lin, and his research direction was organic liquid hydrogen storage.

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