Dehydrogenation of perhydro-dibenzyltoluene for hydrogen production in a microchannel reactor. (5th June 2022)

• Record Type: Journal Article
• Authors: Ali, Ahsan; Rohini, Ajith Krishnan; Lee, Hee Joon
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 48(2022)
• Page Start: 20905
• Page End: 20914
• Publication Date: 2022-06-05
• Subjects: Dehydrogenation -- Liquid organic hydrogen carrier -- Microchannel reactor -- perhydro-dibenzyltoluene -- Stirred tank reactor; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2022.04.212
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: A preliminary study regarding the dehydrogenation of perhydro-dibenzyltoluene as a liquid organic hydrogen carrier with switching from a stirred tank reactor to a continuous flow microchannel reactor is presented. The hydrogen production percentage in the case of a continuous flow microchannel reactor was found greater when compared to that of a stirred tank reactor. The hydrogen production was increased from 64.1% to 82.2% with the increase in bottom plate temperature from 260 to 320 °C for 0.01 mL/min flow rate. A maximum of 88% of hydrogen was generated for a 40 hours of operation, at a bottom wall temperature of 290 °C. The kinetic model for the microchannel reactor dehydrogenation was presented with a pre-exponential factor of 3.272 s −1 and activation energy of 13.79 kJ/mol. The results revealed that a continuous microchannel reactor can be an appropriate technology for the dehydrogenation of perhydro-dibenzyltoluene. Highlights: A microchannel reactor for the dehydrogenation of perhydro-dibenzyltoluene. Comparison of two different reactors: a stirred tank and a continuous microchannel reactor. A continuous microchannel reactor is a promising technology for the dehydrogenation.