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Fluid based cigarette carbonaceous hydrochar supported ZIF-8 MOF for CO2 capture process: The engineering parameters determination for the packed bed column design
Chemical Engineering and Processing: Process Intensification ( IF 3.8 ) Pub Date : 2020-06-16 , DOI: 10.1016/j.cep.2020.108001
Hassan Jaberi , Soleiman Mosleh , Kheibar Dashtian , Zaker Salehi

This study is aimed to convert the cigarette filters (CFs) into cigarette carbonaceous (CC) hydrochar as a green, cheap and economical approach to produce a novel adsorbent with added value and lower toxicity for CO2 capturing. In this regard, cigarette carbonaceous (CC) hydrochar was obtained from CFs and used as support for ZIF-8-MOF growing, while the characteristics of samples were studied through FTIR, XRD, FESEM, and BET techniques. The CC-hydrochar/ZIF-8-MOF was used for the preparation of a fluid by dispersion in a 30 wt% MEA solution with a simple method without any surfactant. The CO2-capturing performance of the prepared nanofluid was evaluated in a designed packed bed column, and the CCD-RSM technique was applied to investigate the contribution of four main operational parameters (gas flow rate, fluid flow rate, CC-hydrochar/ZIF-8 -MOF loading and CO2 initial concentration) as the independent variables. The findings revealed that at optimum conditions the CO2-capturing efficiency of CC-hydrochar/ZIF-8 MOF-based fluid can be dramatically enhanced over 32.36 %, compared to the bare 30 wt% MEA solution. It can be thus concluded that the presence of a few amounts of CC-hydrochar/ZIF-8 MOF in the base fluid could highly enhance the CO2-capturing efficiency up to 99.15 %.



中文翻译:

用于CO 2捕集工艺的基于流体的香烟碳质水炭支撑的ZIF-8 MOF :填充床塔设计的工程参数确定

这项研究旨在将卷烟滤嘴(CFs)转换为卷烟含碳(CC)水炭,以绿色,廉价和经济的方法生产出具有更高附加值和更低毒性的新型吸附剂,以捕获CO 2。在这方面,从碳纤维中获得了香烟碳质(CC)水炭,并用作ZIF-8-MOF生长的载体,同时通过FTIR,XRD,FESEM和BET技术研究了样品的特性。CC-hydrochar / ZIF-8-MOF用于通过不使用任何表面活性剂的简单方法将其分散在30 wt% MEA溶液中来制备流体。一氧化碳2在设计的填充床色谱柱中评估了制备的纳米流体的捕获性能,并采用CCD-RSM技术研究了四个主要操作参数(气体流速,流体流速,CC-hydrochar / ZIF-8- MOF加载量和CO 2初始浓度)作为自变量。研究结果表明,与裸露的30 wt% MEA溶液相比,在最佳条件下,基于CC-hydrochar / ZIF-8 MOF的流体的CO 2捕集效率可显着提高32.36%以上。因此可以得出结论,基础流体中少量CC-hydrochar / ZIF-8 MOF的存在可以极大地提高对CO 2的捕集效率,最高可达99.15%。

更新日期:2020-06-16
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