Experimental and theoretical investigations on the cryogenic adsorption of light hydrocarbons in the temperature range of -80 °C und 0 °C

-80℃和0℃温度范围内轻质烃的低温吸附实验与理论研究

• 批准号: 319276956
• 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: Research Grants
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/319276956?language=en
• 关键词: Experimental; theoretical; investigations; cryogenic; adsorption

The removal of light hydrocarbons from exhaust air or process gas is important in multiple environmental and technical applications, but cannot be efficiently realized when it comes to separation of trace quantities. Even adsorption processes, though commonly used for removing trace quantities, do not provide the required separation efficiency under typical process conditions (ambient temperature and pressure). That is where the proposed project aims at. By lowering the temperature down to a temperature region of -80 °C to 0 °C we assume an increase of the adsorption capacity of the adsorbents so that trace quantities can safely be removed. But as lowering the temperature leads to an increase of adsorption capacity, the diffusion rate inside the adsorbents pore system decreases. Since there are no reliable data on the magnitude of both effects, the scientific issue of the proposed project is to quantify as to how the loading of the adsorbents increases and how strongly the kinetics decrease in between -80 °C to 0 °C. By a combination of experiments in a fixed bed adsorption reactor and dynamic simulations of the adsorption processes the influence of those opposing mechanisms should be evaluated.

从废气或工艺气体中去除轻烃在多种环境和技术应用中很重要，但在痕量分离方面却无法有效实现。即使是吸附法，虽然通常用于去除痕量，但在典型的工艺条件下（环境温度和压力）也不能提供所需的分离效率。这正是拟议项目的目标所在。通过将温度降低到-80°C至0°C的温度区域，我们假设吸附剂的吸附能力增加，以便微量可以安全地去除。但随着温度的降低，吸附量增大，吸附剂孔隙系统内的扩散速率减小。由于没有关于这两种影响程度的可靠数据，因此拟议项目的科学问题是量化吸附剂的负载如何增加以及在-80°C至0°C之间动力学降低的强度。通过固定床吸附反应器的实验和吸附过程的动态模拟相结合，对这些相反机制的影响进行了评估。

项目成果

Adsorption Thermodynamics and Kinetics of Light Hydrocarbons on Microporous Activated Carbon at Low Temperatures

• DOI: 10.1021/acs.iecr.8b00678
• 发表时间: 2018-05
• 期刊: Industrial & Engineering Chemistry Research
• 影响因子: 4.2
• 作者: Florian Birkmann;C. Pasel;M. Luckas;D. Bathen

Trace Adsorption of Ethane, Propane, and n-Butane on Microporous Activated Carbon and Zeolite 13X at Low Temperatures

微孔活性炭和 13X 沸石低温下乙烷、丙烷和正丁烷的痕量吸附

• DOI: 10.1021/acs.jced.6b01068
• 发表时间: 1982
• 期刊: Journal of Chemical & Engineering Data
• 作者: F. Birkmann ; C. Pasel ; M. Luckas ; D. Bathen
• 通讯作者: D. Bathen

Trace Adsorption of Light Hydrocarbons at Low Temperatures: Influence of Carrier Gas Coadsorption

低温下轻质烃的痕量吸附：载气共吸附的影响

• DOI: 10.1021/acs.iecr.9b01572
• 发表时间: 2019
• 期刊: Industrial & Engineering Chemistry Research
• 影响因子: 4.2
• 作者: S. Schmittmann ; C. Pasel ; M. Luckas ; D. Bathen
• 通讯作者: D. Bathen

Adsorption of Light Alkanes and Alkenes on Activated Carbon and Zeolite 13X at Low Temperatures

• DOI: 10.1021/acs.jced.9b00948
• 发表时间: 2020-02-01
• 期刊: JOURNAL OF CHEMICAL AND ENGINEERING DATA
• 作者: Schmittmann, Sonja;Pasel, Christoph;Bathen, Dieter
• 通讯作者: Bathen, Dieter