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Optimization of temperatures in a condensing CO2 to methanol reactor

Kroes, Jorrit (2015) Optimization of temperatures in a condensing CO2 to methanol reactor.

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Abstract:In this study, the effect of the catalyst temperature on the productivity, as well as the energy efficiency under natural and low forced convection, in a condensing CO2 to methanol reactor, is investigated in order to find the optimal catalyst temperature. For both cases, the pressure in the reactor and the condenser outlet gas temperature is kept constant at 50bar and 373K respectively. To predict at which catalyst temperature the productivity is the highest at a condenser outlet temperature of 373K, a kinetic model over the catalyst bed and a phase equilibrium model for the condenser of the experimental reactor setup are developed. The experimental results show that the productivity for both, forced and natural convection, is the highest at a catalyst out temperature of 502K. At higher catalyst temperatures, the productivity remains at a constant level. Because of this the reactor setup is limited by the condenser. Due to the fact that the reactor setup is limited by the condenser, the highest energy efficiency for forced and natural convection is found at the same temperature of 502K. Therefore, the catalyst temperature of 502K is identified as the optimal catalyst temperature by a condenser outlet gas temperature of 373K.
Item Type:Essay (Bachelor)
Faculty:TNW: Science and Technology
Subject:35 chemistry
Programme:Chemical Engineering BSc (56960)
Link to this item:http://purl.utwente.nl/essays/68765
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