Development of Micro/mesoporous spherical adsorbents for Adsorption of various volatile anesthetics

微/介孔球形吸附剂的开发用于吸附各种挥发性麻醉剂

基本信息

批准号：
206051857
负责人：
Professor Dr.-Ing. Dieter Bathen
金额：
--
依托单位：
Lehrstuhl für Thermische Verfahrenstechnik
依托单位国家：
德国
项目类别：
Priority Programmes
财政年份：
2011
资助国家：
德国
起止时间：
2010-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/206051857?language=en
关键词：
Development Micro mesoporous spherical adsorbents

项目摘要

The adsorption of volatile anesthetics on trace levels (< 1 ppm) is highly interesting for technical applications as well as for academic research. Especially challenging for these trace levels is the lack of real adsorption data, while practically adsorption isotherms for higher concentrations (mostly several hundred ppm) are linear extrapolated towards their point of origin to gather data. Therefore, the selection or synthesis of an adsorbent matching these requirements is a particular challenge.During the second founding period carbon based adsorbents as well as large spherical PMO particles with a hierarchical pore structure were synthesized on the basis of porous micro glass beads for the first time. Especially the PMO materials exhibited a very high adsorption capacity for hexanal. First adsorption experiments of volatile anesthetics (isoflurane) directed the material design towards large spherical hydrophobic and hierarchical micro/mesoporous particles (carbon or PMO) for significant process intensification.The most important target for the third founding period of this joint project will be the synthesis of spherical porous glass with flexible properties in the existing mini plant fluidized bed reactor. To insert the advantageous features of core shell particles into the existing system the principle of ion exchange induced phase separation will be applied. To rise particle sizes in technically relevant range the principle of ionotropic gelation will be combined with sodium borosilicate glass for the first time. Subsequently, these shaped bodies will be transformed into ordered micro/mesoporous hierarchically structured organosilica or carbon beads. Furthermore, the new route of ionotropic gelation will be utilized for the direct synthesis of well-ordered microporous organosilica or carbon beads. In the last step, the innovative materials will be tested in several adsorption experiments. The three most common volatile anesthetics (isoflurane, desflurane, sevoflurane) will be applied. Additionally, three alkyl ethers and one alkane will be tested to distinguish between the effects of the halogen atoms and the influence of the ether bridge. Air filter systems are in the focus of this project. Therefore, only trace level concentrations of the three fluranes in an air/nitrogen mixture will be studied.

微量（< 1 ppm）挥发性麻醉剂的吸附对于技术应用和学术研究来说非常有趣。对于这些痕量水平来说，特别具有挑战性的是缺乏真实的吸附数据，而实际上较高浓度（主要是几百 ppm）的吸附等温线是线性外推到其原点以收集数据的。因此，选择或合成符合这些要求的吸附剂是一个特殊的挑战。在第二个创建时期，在多孔微玻璃珠的基础上合成了碳基吸附剂以及具有分级孔结构的大球形PMO颗粒。时间。尤其是PMO材料对己醛表现出非常高的吸附能力。挥发性麻醉剂（异氟烷）的首次吸附实验将材料设计转向大球形疏水性和分级微/介孔颗粒（碳或 PMO），以显着强化工艺。该联合项目第三个创建阶段最重要的目标将是合成在现有的小型工厂流化床反应器中制备具有柔性特性的球形多孔玻璃。为了将核壳颗粒的有利特征插入到现有系统中，将应用离子交换诱导相分离的原理。为了将颗粒尺寸提高到技术相关范围内，离子传递凝胶化原理将首次与硼硅酸钠玻璃相结合。随后，这些成型体将转化为有序的微/介孔分层结构的有机二氧化硅或碳珠。此外，离子型凝胶化的新途径将用于直接合成有序的微孔有机二氧化硅或碳珠。最后一步，创新材料将通过多次吸附实验进行测试。将使用三种最常见的挥发性麻醉剂（异氟烷、地氟烷、七氟烷）。此外，还将测试三种烷基醚和一种烷烃，以区分卤素原子的影响和醚桥的影响。空气过滤系统是该项目的重点。因此，仅研究空气/氮气混合物中三种氟烷的痕量浓度。