{"title":"Spontaneous supergravity field drives liquid-phase microelements to enhance CO2 capture through self revolution coupling","authors":"Xiaoxu Duan, Caijiao Cong, Liwang Wang, Yongcong Liu, Zhisheng Zhao, Jiwei Wu, Liang Ma","doi":"10.1016/j.seppur.2024.131058","DOIUrl":null,"url":null,"abstract":"In the pursuit of global carbon neutrality, the emissions of carbon-containing flue gas resulting from methanol production pose a significant challenge to the chemical industry’s efforts to achieve this goal. It is imperative to develop cost-effective and low-carbon carbon capture technologies. This study introduces the hydro-jet oscillating purifier (HOP) that utilizes spontaneous supergravity to promote the self-revolution coupling motion of liquid-phase microelements, thereby enhancing mass transfer efficiency. The research further investigates the effect of the HOP’s overflow pipe model on the mass transfer process and determines optimal parameters for carbon capture. The gas phase generates a vortex supergravity field that disrupts the liquid column, leading to the formation of uniformly dispersed liquid-phase microelements that engage in self-revolution coupling motion. The presence of these liquid-phase microelements increases the turbulent kinetic energy within the vortex supergravity field, which accelerates the movement of surface molecules in the liquid phase. Mass transfer efficiency and carbon capture efficiency can be improved by increasing the mass transfer area, increasing the absorption capacity, and minimizing the liquid film resistance. A mass transfer coefficient model was established for various overflow pipe lengths, resulting in a maximum mass transfer coefficient of 36 kmol·kPa<sup>−1</sup>·m<sup>−3</sup>·s<sup>−1</sup> and a carbon capture efficiency of 83%. This article presents a high-efficiency technology for flue gas carbon capture, which is expected to facilitate the low-carbon transition in the chemical industry and support the timely achievement of carbon neutrality goals.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"85 1","pages":""},"PeriodicalIF":8.1000,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.seppur.2024.131058","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
摘要
在追求全球碳中和的过程中,甲醇生产产生的含碳烟气排放对化工行业实现这一目标的努力构成了巨大挑战。开发具有成本效益的低碳碳捕集技术势在必行。本研究介绍了水力喷射振荡净化器(HOP),它利用自发超引力促进液相微元素的自旋转耦合运动,从而提高传质效率。研究进一步探讨了 HOP 溢流管模型对传质过程的影响,并确定了碳捕集的最佳参数。气相产生的涡旋超重力场会扰乱液柱,从而形成均匀分散的液相微元素,这些微元素会进行自旋转耦合运动。这些液相微元素的存在增加了涡旋超重力场中的湍流动能,从而加速了液相中表面分子的运动。可以通过增加传质面积、提高吸收能力和尽量减小液膜阻力来提高传质效率和碳捕获效率。针对不同的溢流管长度建立了传质系数模型,得出最大传质系数为 36 kmol-kPa-1-m-3-s-1,碳捕集效率为 83%。本文介绍了一种高效的烟气碳捕集技术,该技术有望促进化工行业的低碳转型,并为及时实现碳中和目标提供支持。
Spontaneous supergravity field drives liquid-phase microelements to enhance CO2 capture through self revolution coupling
In the pursuit of global carbon neutrality, the emissions of carbon-containing flue gas resulting from methanol production pose a significant challenge to the chemical industry’s efforts to achieve this goal. It is imperative to develop cost-effective and low-carbon carbon capture technologies. This study introduces the hydro-jet oscillating purifier (HOP) that utilizes spontaneous supergravity to promote the self-revolution coupling motion of liquid-phase microelements, thereby enhancing mass transfer efficiency. The research further investigates the effect of the HOP’s overflow pipe model on the mass transfer process and determines optimal parameters for carbon capture. The gas phase generates a vortex supergravity field that disrupts the liquid column, leading to the formation of uniformly dispersed liquid-phase microelements that engage in self-revolution coupling motion. The presence of these liquid-phase microelements increases the turbulent kinetic energy within the vortex supergravity field, which accelerates the movement of surface molecules in the liquid phase. Mass transfer efficiency and carbon capture efficiency can be improved by increasing the mass transfer area, increasing the absorption capacity, and minimizing the liquid film resistance. A mass transfer coefficient model was established for various overflow pipe lengths, resulting in a maximum mass transfer coefficient of 36 kmol·kPa−1·m−3·s−1 and a carbon capture efficiency of 83%. This article presents a high-efficiency technology for flue gas carbon capture, which is expected to facilitate the low-carbon transition in the chemical industry and support the timely achievement of carbon neutrality goals.
期刊介绍:
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.