Development of a rigorous two-dimensional mathematical model for a novel thermally coupled reactor for simultaneous production of xylenes, hydrogen, and toluene

Hamedi, Nazanin; Nategh, Mahshid; Keshtkari, Fariba; Rahimpour, Mohammad Reza

doi:10.1016/j.cherd.2017.09.009

Cited by 2 publications

(2 citation statements)

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“…It can be used as an environmentally friendly fuel, a hydrogen carrier, or the reactant for production of other useful chemical compounds . The annual production of methanol had been almost doubled from 2007 to 2012, and is expected to continue this increasing trend. − Commercial methanol production plants operate at the pressure of 5–10 MPa, and temperature of 493–573 K over the CuO/ZnO/Al 2 O 3 catalyst. , Given the exothermic nature of the reaction, a cooling method such as applying a heat exchanger reactor, an interior heat exchanger, , or a thermally coupled reactor, , should be used to avoid extremely high temperatures in the reactor.…”

Section: Introductionmentioning

confidence: 99%

“…12−16 Commercial methanol production plants operate at the pressure of 5−10 MPa, and temperature of 493−573 K over the CuO/ZnO/Al 2 O 3 catalyst. 17,18 Given the exothermic nature of the reaction, a cooling method such as applying a heat exchanger reactor, 19 an interior heat exchanger, 20,21 or a thermally coupled reactor, 22,23 should be used to avoid extremely high temperatures in the reactor.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Synthesis and Oxidation of Methanol to Formaldehyde, Thermally Coupled with Cyclohexane Dehydrogenation in a Trifunctional Reactor

Dehnamaki

Iranshahi

2019

Energy Fuels

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Motivated by the energy consumption concerns of today’s world, in this study, a novel trifunctional reactor is proposed, in which formaldehyde, methanol, benzene, and hydrogen are produced simultaneously. In this reactor configuration, two exothermic reactions, namely, methanol oxidation and syngas conversion to methanol, and the endothermic reaction of cyclohexane (CH) dehydrogenation are integrated into one reactor. Indeed, the generated heat in the exothermic sides supplies the required energy for the endothermic reaction, resulting in lower and higher temperature average, respectively, in the exothermic and endothermic sides. By considering heat and mass balances, a reliable mathematical model is developed and the feasibility of this reactor configuration is examined. Moreover, the effects of inlet temperature and molar flow rate on the reactor performance are inspected. The results indicate that to reach a formaldehyde yield of almost unity, the inlet temperatures of methanol synthesis, formaldehyde production, and CH dehydrogenation sides should be approximately 511, 493, and 513 K, respectively.

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