Complexity and Challenges in Noncontact High Temperature Measurements in Microwave-Assisted Catalytic Reactors.

Autor:	Gangurde LS; Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands., Sturm GSJ; Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands., Devadiga TJ; Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands., Stankiewicz AI; Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands., Stefanidis GD; Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands.; Katholieke Universiteit Leuven, Chemical Engineering Department, Celestijnenlaan 200F, 3001 Leuven, Belgium.
Jazyk:	angličtina
Zdroj:	Industrial & engineering chemistry research [Ind Eng Chem Res] 2017 Nov 15; Vol. 56 (45), pp. 13379-13391. Date of Electronic Publication: 2017 Sep 07.
DOI:	10.1021/acs.iecr.7b02091
Abstrakt:	The complexity and challenges in noncontact temperature measurements inside microwave-heated catalytic reactors are presented in this paper. A custom-designed microwave cavity has been used to focus the microwave field on the catalyst and enable monitoring of the temperature field in 2D. A methodology to study the temperature distribution in the catalytic bed by using a thermal camera in combination with a thermocouple for a heterogeneous catalytic reaction (methane dry reforming) under microwave heating has been demonstrated. The effects of various variables that affect the accuracy of temperature recordings are discussed in detail. The necessity of having at least one contact sensor, such as a thermocouple, or some other microwave transparent sensor, is recommended to keep track of the temperature changes occurring in the catalytic bed during the reaction under microwave heating.
Databáze:	MEDLINE
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