Bhati Geetanjali, Dharanikota Naga Phani Sai Kumar, Uppaluri Ramagopal V S, Mandal Bishnupada
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
Environ Sci Pollut Res Int. 2024 Jun 10. doi: 10.1007/s11356-024-33869-8.
Growing concern about global warming and greenhouse effects has led to persistent demands for increased energy efficiency and reduced carbon dioxide emissions. As a result, energy-intensive processing of carbon dioxide separation became imperative. Accordingly, energy-efficient, economically viable carbon dioxide separation technologies are sought as carbon dioxide capture options for future industrial process schemes. The article provides an overview of current technology for the separation of carbon dioxide, specifically focusing on adsorption. In this study, amine-loaded Zeolite-Y adsorbents were evaluated to enhance carbon dioxide adsorption capacity through synthesis, characterization, and the adsorption of carbon dioxide, within the context of current trends in separation technology. This study aims to study the ability of amine-loaded Zeolite-Y to adsorb carbon dioxide using three different loadings ethanolamine, diethanolamine, and triethanolamine. The amine-loaded materials were characterized by various technologies, including X-ray diffraction pattern (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), and field emission scanning electron microscope (FESEM) studies. The study suggests that monoethanolamine-loaded Zeolite-Y is a promising and cost-effective adsorbent for carbon dioxide adsorption in comparison to other synthesized amine-loaded adsorbents. The adsorbent has been able to adsorb carbon dioxide in the range of 1.14-2.26 mmol g at 303 K and 1 bar for a loading of 1, 5, and 10 wt.% amine groups.
对全球变暖和温室效应的日益关注导致了对提高能源效率和减少二氧化碳排放的持续需求。因此，二氧化碳分离的能源密集型处理变得势在必行。相应地，人们正在寻找节能、经济可行的二氧化碳分离技术，作为未来工业流程方案中的二氧化碳捕获选项。本文概述了当前二氧化碳分离技术，特别关注吸附技术。在本研究中，在当前分离技术趋势的背景下，通过合成、表征以及二氧化碳吸附，对负载胺的Y型沸石吸附剂进行了评估，以提高其二氧化碳吸附能力。本研究旨在研究负载乙醇胺、二乙醇胺和三乙醇胺三种不同负载量的负载胺Y型沸石吸附二氧化碳的能力。通过各种技术对负载胺材料进行了表征，包括X射线衍射图谱（XRD）、傅里叶变换红外光谱（FTIR）、热重分析（TGA）、布鲁诺尔-埃米特-泰勒（BET）和场发射扫描电子显微镜（FESEM）研究。研究表明，与其他合成的负载胺吸附剂相比，负载单乙醇胺的Y型沸石是一种有前景且经济高效的二氧化碳吸附剂。在303 K和1 bar下，对于1、5和10 wt.%胺基负载量，该吸附剂能够吸附1.14 - 2.26 mmol/g范围内的二氧化碳。
