Enhanced adsorption and regeneration of adsorbents for effective air pollution control and gas separation and purification

吸附再生是控制有机蒸气排放和分离和净化气流的理想方法，因为它可以回收和再利用被吸附的物质，从而促进可持续工业发展。通常通过加热或施加真空来再生吸附剂。蒸汽和热惰性气体被广泛用于吸附剂的再生。吸附剂的再生因其使用时间长、能耗高等特点而成为人们关注的热点。最近，微波和电阻加热已成为更有效的再生技术，因为与蒸汽或惰性气体再生相比，它们的速度更快，效率更高。微波再生也有可能减少或消除不可逆吸附和鞋跟堆积。调整吸附剂的电性(即电阻率)和介电性能(即损耗因数)可实现更有效和更节能的吸附剂再生，并可指示吸附剂的饱和程度或再生程度。本研究的目标是：调整吸附剂的电学性质，以增强其阻热再生能力；2)调整吸附剂的介电性能，以增强其微波再生能力；3)通过化学处理对吸附剂进行改性，以加强对吸附和解吸过程中吸附物加载和脱附的监控；以及4)评估微波和电阻加热去除鞋跟积聚的性能。这项研究将通过更有效地捕获空气污染物排放、降低能源消耗和减少温室气体排放来改善空气质量，从而为加拿大的可持续发展做出贡献。因此，这项研究将使加拿大的工业更具竞争力，更环保。它还将有助于在对加拿大具有战略重要性的领域培训高素质人员，以便在不损害环境和空气质量的情况下改善工业活动。

Adsorption with regeneration is a desirable process for controlling the emissions of organic vapors and separation and purification of gas streams because it allows for the recycle and reuse of the adsorbate hence contributing to sustainable industrial development. Adsorbents are typically regenerated by heating or applying vacuum. Steam and hot inert gas have been widely used for the regeneration of adsorbents. The regeneration of adsorbents has become an emerging concern because of its long duration and high energy requirements. More recently microwave and resistive heating have emerged as more effective regeneration techniques because of their faster rate and higher efficiency compared to regeneration with steam or inert gas. Microwave regeneration has also potential to minimize or eliminate irreversible adsorption and heel buildup. Tailoring the electric (i.e. resistivity) and dielectric (i.e. loss factor) properties of the adsorbent can allow for more effective and energy efficient regeneration of the adsorbent, and can indicate the degree of saturation or regeneration of the adsorbent. The objectives of this research are: tailoring the electric properties of adsorbents to enhance their resistive heating regeneration ability; 2) tailoring the dielectric properties of adsorbents to enhance their microwave regeneration ability; 3) modifying the adsorbents by chemical treatment to enhance monitoring of the adsorbate loading onto and removal from the adsorbent during adsorption and desorption; and 4) evaluating the performance of microwave and resistive heating for the removal of heel buildup. This research will contribute to sustainable development in Canada by improving the air quality through more effective capture of air pollutants emissions, lower energy consumption, and lower greenhouse gas emissions. Hence this research will allow Canadian industry to be more competitive and more environmentally friendly. It will also contribute to the training of high quality personnel in areas of strategic importance to Canada to improve industrial activities without compromising the quality of the environment and air.