在吸附分离过程中,微波技术主要应用于吸附材料的合成和吸/脱附过程的强化。采用微波合成吸附材料可提高能量利用率、大幅度缩短反应时间、产物均匀且吸附性能更优异。在吸附过程中,微波场通过促使极性分子转动加速体系传质过程,加快吸附;在脱附再生过程中,被吸附物质在微波场中被加热而发生挥发或者分解。微波强化的作用机理以及微波场中体系温度的准确测量和控制有待进一步研究。
In the process of adsorption and separation,microwave technology is mainly used in the synthesis of adsorption material and the enhancement of absorption and desorption process.Synthesis of adsorbent material by microwave technology can improve the energy efficiency,significantly shorten the reaction time,further product uniformity and increase the adsorption performance.In the adsorption process,the microwave field accelerates the mass transfer process by promoting the rotation of polar molecules and it speeds up the adsorption process.In the desorption and regeneration process,the adsorbed species are heated in the microwave field to volatilize or decompose.The mechanism of microwave strengthening and the accurate measurement and control of system temperature in the microwave field need to be further studied.
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基金资助
国家自然科学基金(21401209,51403229);青海省自然科学基金青年项目(ZJ-947Q)
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