Temperature Distribution in a Microwave Heated Gas Chromatographic Packed Column

摘要

To understand how to use microwaves more efficiently to enhance chromatographic separation, we have to understand how the material with which they interact is affected. This is addressed by formulating and solving the energy equation to predict the temperature distribution in the chromatographic column. This issue is addressed in this article by modeling the microwave heated packed column to obtain a temperature difference between the gas and solid pellets. The effect of some parameters on the solid-gas temperature difference in the packed chromatographic column is investigated. Calculated gas velocity and temperature difference reflect their sensitivity to inlet gas velocity, solid particle diameter, and electric field. The used numerical procedure offers an efficient tool to evaluate whether the solid particles can be heated to a higher temperature than the gas in the chromatographic column. Because of the high solid pellet temperature, the separation process will be greatly enhanced in the vicinity of the solid particles.