2023年8月15日 · Herein, DAC using temperature-vacuum swing adsorption (TVSA) is presented and analyzed by integrating various low-grade heat sources in buildings. An amine-functionalized metal organic framework is selected for process simulation, and the performance is compared with those using other sorbents.

2024年4月1日 · The process performance of three amine-functionalized chemisorbents (TRI-PE-MCM-41, SI-AEATPMS, APDES-NFC-FD-S) and two physisorbents (SIFSIX-18-Ni- and NbOFFIVE-1-Ni) was evaluated for direct air capture (DAC) of in temperature-vacuum swing adsorption (TVSA) and steam-assisted temperature-vacuum swing adsorption (s-TVSA) cycles.

2024年8月14日 · In this work, we present a rigorous and computationally efficient framework for the simulation and optimization of DAC by an S-TVSA process. We evaluate the performance of the process by finite volume simulation of the fundamental material, momentum, and energy balance equations which govern the dynamics of a fixed-bed adsorption column.

2021年1月15日 · In this work, detailed experimental comparison is conducted of temperature swing adsorption (TSA/TCSA) and TVSA for DAC. Particularly, TVSA is assessed with air or inert gas purge flow (TVCSA) and without purge flow. The working capacity, regeneration specific energy requirement (SER) and adsorbent regenerability of these processes was compared.

This study presents a comprehensive comparison between the packed bed and monolith contactor configurations for direct air capture (DAC) via process modeling of a temperature-vacuum swing adsorption (TVSA) process.

2024年11月11日 · Adsorption-based direct air capture (DAC) of carbon dioxide, using chemisorbents like solid amines, has been widely recognized as a sustainable measure to...

通过详细的过程建模，评估了五种固体吸附剂在变温真空变压吸附 (TVSA) 和蒸汽辅助变温真空变压吸附 (s-TVSA) 循环中直接空气捕获 CO2 的工艺性能。

2025年1月6日 · In this study, we provide a detailed technical assessment of an integrated system using direct air capture based on temperature-vacuum-swing-adsorption (TVSA-DAC) as the carbon source for e-methanol production.

2023年12月14日 · 2、dac技术是一种利用物理化学作用从大气中直接碳捕集co2的技术，由于其具有布置灵活、土地和水资源占用面积小、且能够实现从大气净去除co2，因此在近年来成为碳捕集技术中的研究热点。 3、当前dac技术的主要研究方向是如何制备高性能的co2吸附剂，但针对于dac捕集装置的系统整合与优化设计方面还非常不足。 在dac捕集过程中，空气在风机的驱动下通过吸附器，空气中的co2被吸附剂吸附。 通过采用的胺功能化吸附剂不仅会吸附co2，还会同 …

2020年8月11日 · In this work, direct air capture (DAC) via adsorption is studied through the design and analysis of two temperature–vacuum swing adsorption (TVSA) cycles. In the first part, a novel way of describing the adsorption of \ ( {\hbox {CO}}_ {2}\) in presence of water vapor is proposed for co-adsorption kinetic and thermodynamic data gathered from ...