Carbon Capture Science & Technology最新文献

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Membranes and membrane processes for CO2 separation: MEMFO's long-term effort in reducing carbon emissions 用于二氧化碳分离的膜和膜过程:MEMFO 在减少碳排放方面的长期努力
Carbon Capture Science & Technology Pub Date : 2024-01-24 DOI: 10.1016/j.ccst.2024.100193
Liyuan Deng , Arne Lindbråthen , Saravanan Janakiram , Luca Ansaloni , Zhongde Dai
{"title":"Membranes and membrane processes for CO2 separation: MEMFO's long-term effort in reducing carbon emissions","authors":"Liyuan Deng ,&nbsp;Arne Lindbråthen ,&nbsp;Saravanan Janakiram ,&nbsp;Luca Ansaloni ,&nbsp;Zhongde Dai","doi":"10.1016/j.ccst.2024.100193","DOIUrl":"https://doi.org/10.1016/j.ccst.2024.100193","url":null,"abstract":"<div><p>Urgent actions are needed to reduce CO<sub>2</sub> emissions and mitigate the increasingly severe impacts of climate change. Since the 1990s, the membrane research group (MEMFO) at the Norwegian University of Science and Technology has been committed to developing effective membranes and membrane processes for CO<sub>2</sub> separation. MEMFO's research can be categorized into five main themes: facilitated transport membranes, hybrid membranes, carbon membranes, membrane contactors, and related modeling and process simulation. These themes are tied to industrial applications in CO<sub>2</sub> capture from flue gas, biogas upgrading, natural gas sweetening, and hydrogen purification. Promising membranes, identified based on their laboratory-scale performances, have been selected for onsite testing in industrial processes to validate their performances as well as stability and durability. Verified membranes are upscaled for pilot tests. This account paper summarizes MEMFO's research and development outcomes over the past decade and discusses our research strategies and perspectives for future work.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656824000058/pdfft?md5=ccbab7a3c624efb4490621aeff009b86&pid=1-s2.0-S2772656824000058-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139548750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MOFs materials as photocatalysts for CO2 reduction: Progress, challenges and perspectives 作为光催化剂用于二氧化碳还原的 MOFs 材料:进展、挑战和前景
Carbon Capture Science & Technology Pub Date : 2024-01-19 DOI: 10.1016/j.ccst.2024.100191
Mazhar Khan , Zeeshan Akmal , Muhammad Tayyab , Seemal Mansoor , Adnan Zeb , Ziwei Ye , Jinlong Zhang , Shiqun Wu , Lingzhi Wang
{"title":"MOFs materials as photocatalysts for CO2 reduction: Progress, challenges and perspectives","authors":"Mazhar Khan ,&nbsp;Zeeshan Akmal ,&nbsp;Muhammad Tayyab ,&nbsp;Seemal Mansoor ,&nbsp;Adnan Zeb ,&nbsp;Ziwei Ye ,&nbsp;Jinlong Zhang ,&nbsp;Shiqun Wu ,&nbsp;Lingzhi Wang","doi":"10.1016/j.ccst.2024.100191","DOIUrl":"https://doi.org/10.1016/j.ccst.2024.100191","url":null,"abstract":"<div><p>Photocatalytic reduction of carbon dioxide (CO<sub>2</sub>) presents a pivotal solution to address meteorological and ecological challenges. Currently, metal-organic frameworks (MOFs) with their crystalline porosity, adjustable structures, and diverse chemical functionalities have garnered significant attention in the realm of photocatalytic CO<sub>2</sub> reduction. This review provides a brief introduction to CO<sub>2</sub> reduction and MOF material and their applications in CO<sub>2</sub> reduction. Then, it undertakes a comprehensive examination of MOFs, summarizing their key attributes, including porosity, large surface area, structural multifunctionalities, and responsiveness to visible light, along with an analysis of heterojunctions and their methods of preparation. Additionally, it elucidates the fundamental principle of photocatalysis and CO<sub>2</sub> reduction, encompassing both half and overall reactions. Furthermore, the classification of MOF-based materials is explored, along with the proposed mechanism for CO<sub>2</sub> reduction and an update on recent developments in this field. Finally, this review outlines the challenges and potential opportunities for utilizing MOFs in CO<sub>2</sub> reduction, offering valuable insights to scholars seeking innovative approaches not only to enhance CO<sub>2</sub> reduction but also to advance other photocatalytic processes.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656824000034/pdfft?md5=aa6f2f943d012e7e9886953b59199cb6&pid=1-s2.0-S2772656824000034-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139503865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Air pollution impacts of amine scrubbing for CO2 capture 用于捕获二氧化碳的胺洗涤法对空气污染的影响
Carbon Capture Science & Technology Pub Date : 2024-01-19 DOI: 10.1016/j.ccst.2024.100192
Gary T. Rochelle
{"title":"Air pollution impacts of amine scrubbing for CO2 capture","authors":"Gary T. Rochelle","doi":"10.1016/j.ccst.2024.100192","DOIUrl":"https://doi.org/10.1016/j.ccst.2024.100192","url":null,"abstract":"<div><p>The current political discussion in the United States around carbon capture and storage includes statements that suggest a need for a technical review to clarify the expected air pollution impacts of amine scrubbing. The Center for International Law and 50 other organizations published an open letter claiming that “CCS is not consistent with the principles of environmental justice… CCS makes dirty energy even more dangerous for frontline communities. Facilities equipped with carbon capture technology have to burn more fossil fuel to get the same energy output, resulting in increased emissions of toxic and hazardous pollutants, like fine particulates (PM2.5).”</p><p>This paper reviews air pollutants produced by the use of amine scrubbing on coal- and gas-fired power plants in the U.S. and the process features and mitigation strategies that will minimize their impact on air quality. Even with atmospheric reactions, emissions of amine, nitrosamine, and other air toxics are likely to have insignificant environmental and health impacts. Stacks will disperse emissions with a dilution factor greater than 8000. Water wash with or without acid will reduce emissions of amine and nitrosamine that is produced from atmospheric reactions. Nitrosamine emissions will be managed with selective catalytic reduction (SCR) to reduce the NO/NO<sub>2</sub> and/or selection of primary or non-volatile amines. With coal-fired power plants, amine aerosols, Hg, SO<sub>3</sub>, and fine particulate emissions will probably be managed by a fabric filter with alkali addition. Carbon capture by amine scrubbing will reduce significantly the effect of the power plant emissions on ambient levels of PM2.5. With coal-fired power plants, the application of amine scrubbing will significantly reduce SO<sub>2</sub> emissions. NO<sub>x</sub> emissions will usually be minimized by selective catalytic reduction (SCR) in both gas- and coal-fired plants. Ammonia emissions will be minimized by managing amine oxidation, and if necessary, by adding an acid wash or other controls.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656824000046/pdfft?md5=cfa71b14e8fc7396b290728d4522e7e5&pid=1-s2.0-S2772656824000046-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139503864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-period, multi-objective optimisation of the Northern Lights and Stella Maris carbon capture and storage chains 北极光和斯特拉马里斯碳捕集与封存链的多周期、多目标优化
Carbon Capture Science & Technology Pub Date : 2024-01-03 DOI: 10.1016/j.ccst.2024.100190
Denis Martins Fraga , Anna Korre , Zhenggang Nie , Sevket Durucan
{"title":"Multi-period, multi-objective optimisation of the Northern Lights and Stella Maris carbon capture and storage chains","authors":"Denis Martins Fraga ,&nbsp;Anna Korre ,&nbsp;Zhenggang Nie ,&nbsp;Sevket Durucan","doi":"10.1016/j.ccst.2024.100190","DOIUrl":"10.1016/j.ccst.2024.100190","url":null,"abstract":"<div><p>A multi-objective optimisation model for CCS chains, aiming to minimise costs and greenhouse gas emissions, considering various transport options is presented. The model builds upon previous work and covers the CCS chain elements after CO<sub>2</sub> is captured, including conditioning, pipeline and batch-wise transportation, intermediate hub storage and injection at CO<sub>2</sub> storage fields. A prospective Life Cycle Inventory is integrated to evaluate emissions from batch-wise transportation. The model is parameterised for accurate estimations based on site-specific characteristics and is implemented in two standalone CCS chains, that are analogues to the Northern Lights project with dominant ship transport and the Stella Maris concept with direct injection ship transport, also incorporating distinct emission profiles, intermediate storage hubs and injection sites. A third implementation combining both chain concepts is implemented. By increasing in a step-wise manner the weight of the emissions in the objective function, the model evaluates cost and emission trade-offs. The optimisation selects costlier wells to minimise emissions and shifts from batch-wise ships to cross-continent pipelines. Chain emissions decrease over time with CO<sub>2</sub> supply increase. Shipping operation dominates emissions, followed by well construction and infrastructure construction. Across all the implementations, the GHG emission intensity of the chain, after CO<sub>2</sub> is captured, ranged from 3.3 to 14.2 %, depending on the concept and transport option adopted and accounting for regional characteristics (i.e., the electricity supply mix per country).</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656824000022/pdfft?md5=f44160c56bf790c2ffa7b1df4bbe5406&pid=1-s2.0-S2772656824000022-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139395542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Parametric Investigation of CO2 Desorption of Zeolite 13X Under Microwave Condition 微波条件下沸石 13x 的二氧化碳解吸参数研究
Carbon Capture Science & Technology Pub Date : 2024-01-02 DOI: 10.1016/j.ccst.2024.100189
Mustafa Erguvan, Shahriar Amini
{"title":"Parametric Investigation of CO2 Desorption of Zeolite 13X Under Microwave Condition","authors":"Mustafa Erguvan,&nbsp;Shahriar Amini","doi":"10.1016/j.ccst.2024.100189","DOIUrl":"10.1016/j.ccst.2024.100189","url":null,"abstract":"<div><p>In this study, a parametric experimental analysis is performed to investigate the adsorption and desorption processes by evaluating CO<sub>2</sub> concentration, sorbent temperature, adsorption, and desorption capacities, and desorption efficiency using Zeolite 13X with a modified multimode microwave oven. Four parameters varied: average microwave powers (336 to 504 W), gas flow rate (60 to 100 ml/min), regeneration temperature (80–120 °C) as well as the presence of moisture with an initial CO<sub>2</sub> concentration of 20 %. This work is the first study that investigates these four main parameters’ effects together on the characteristics of CO<sub>2</sub> desorption process of Zeolite 13X. While the adsorption was completed faster with higher flow rates with a faster breakthrough curve, the highest CO<sub>2</sub> adsorbed amount was found at the lowest flow rates. The moisture effect on the adsorption capacity was also found to be negative with an adsorption capacity reduction of 20 % under wet conditions. The MW power was the key parameter since it controls the process (temperature), and the desorption stage in all conditions were completed faster with higher microwave power rates. However, low MW power always provided better results in terms of CO<sub>2</sub> desorbed amount and desorption efficiency. Moreover, while higher flow rate speeded up the desorption process, it reduced the desorption efficiency. Moisture impact was found to be quite significant with a desorption efficiency reduction of 25 %. It was assumed that this reduction is attributed to the competition between the thermal desorption of CO<sub>2</sub> and the absorption of CO<sub>2</sub> by extra water in the system. Overall, while the amount of desorbed CO<sub>2</sub> varied between 1.13 and 1.76 mmol CO<sub>2</sub>/g, the desorption efficiency changed from 51 % to 75 %.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656824000010/pdfft?md5=60287432ec7eba6dbeb54ff51027d036&pid=1-s2.0-S2772656824000010-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139392031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient CO2 capture from lime plants: Techno-economic assessment of integrated concepts using indirectly heated carbonate looping technology 石灰厂二氧化碳的高效捕集:利用间接加热碳酸盐循环技术对综合概念进行技术经济评估
Carbon Capture Science & Technology Pub Date : 2023-12-25 DOI: 10.1016/j.ccst.2023.100187
Martin Greco-Coppi , Peter Seufert , Carina Hofmann , Angela Rolfe , Ye Huang , Sina Rezvani , Jochen Ströhle , Bernd Epple
{"title":"Efficient CO2 capture from lime plants: Techno-economic assessment of integrated concepts using indirectly heated carbonate looping technology","authors":"Martin Greco-Coppi ,&nbsp;Peter Seufert ,&nbsp;Carina Hofmann ,&nbsp;Angela Rolfe ,&nbsp;Ye Huang ,&nbsp;Sina Rezvani ,&nbsp;Jochen Ströhle ,&nbsp;Bernd Epple","doi":"10.1016/j.ccst.2023.100187","DOIUrl":"10.1016/j.ccst.2023.100187","url":null,"abstract":"<div><p>The quest to decarbonize the lime and cement industry is challenging because of the amount and the nature of the CO<sub>2</sub> emissions. The process emissions from calcination are unavoidable unless carbon capture is deployed. Nevertheless, the majority of the available carbon capture technologies are expensive and energy inefficient. The indirectly heated carbonate looping (IHCaL) process is a promising technology to capture CO<sub>2</sub> from the lime and cement production, featuring low penalties in terms of economics and energy utilization. Previous works have highlighted the potential of the IHCaL, but the optimization of the process has not been discussed in enough detail and techno-economic implications are not yet fully understood. Within this work, ten scenarios using IHCaL technology to capture CO<sub>2</sub> from a lime plant were simulated. Hereby, different process configurations, heat recovery strategies and fueling options were computed. The calculations for the capture facilities were performed with Aspen Plus® software and EBSILON®<em>Professional</em> was used to simulate the steam cycles. A techno-economic assessment was included as well, aided by the ECLIPSE software.</p><p>The results demonstrate that the selection of the fuel for the combustor not only affects the CO<sub>2</sub> balance and energy performance but is also an important cost driver —there were considerable economic advantages for the computed cases with middle-caloric solid recovered fuel (SRF). The analysis shows how the heat recovery strategy can be optimized to achieve tailored outcomes, such as reduced fuel requirement or increased power production. The specific primary energy consumption (from −0.3 to +2.5 MJ<sub>LHV</sub>/t<sub>CO2,av</sub>) and cost for CO<sub>2</sub> avoided (from −11 to +25 €/t<sub>CO2,av</sub>) using SRF are considerably low, compared with other technologies for the same application. The sensitivity study revealed that the main parameters that impact the economics are the discount rate and the project life. The capture plants are more sensitive to parameter changes than the reference plant, and the plants using SRF are more sensitive than the lignite-fueled plants. The conclusions from this work open a new pathway of experimental research to validate key assumptions and enable the industrial deployment of IHCaL technology before 2030.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277265682300091X/pdfft?md5=2c99e96cb5df74946cdd4feda78607db&pid=1-s2.0-S277265682300091X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139192187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CO2 Joule-Thomson effect: Application on premium connections for CCS well 二氧化碳焦耳-汤姆森效应:应用于 CCS 井的优质连接
Carbon Capture Science & Technology Pub Date : 2023-12-25 DOI: 10.1016/j.ccst.2023.100185
Laurent Boufflers , Pierre Martin , Pierre Mauger , Diana Rodriguez
{"title":"CO2 Joule-Thomson effect: Application on premium connections for CCS well","authors":"Laurent Boufflers ,&nbsp;Pierre Martin ,&nbsp;Pierre Mauger ,&nbsp;Diana Rodriguez","doi":"10.1016/j.ccst.2023.100185","DOIUrl":"https://doi.org/10.1016/j.ccst.2023.100185","url":null,"abstract":"<div><p>CCS (Carbon Capture and Storage) is a major technology aiming to reduce greenhouse gases and reduce carbon footprint. In these applications, Oil Country Tubular Goods (OCTG) and associated premium connections are used to inject industrial CO<sub>2</sub> into stable geological formations such as depleted oil and gas fields or saline aquifers, in liquid or dense phase to permanently store it. While current standards (API RP 5C5, ISO 13,679) allow qualification of premium connections for Oil &amp; Gas application, no standard exists for CCS applications. In that frame, a new test methodology was developed to evaluate the impact of Joule-Thomson effect on premium connection, in the scenario of a CO<sub>2</sub> blow-out and intermittent operation of the injection wells, such as shut-in of the subsurface safety valve (SSSV) or injection phase. To confirm that premium connections remain tight and safe after being exposed to a rapid depressurization of CO<sub>2</sub>, they have been physically tested in a horizontal load frame. The test consisted in the filling of the sample with CO<sub>2</sub> up to a minimum of 100 bar and a temperature below 30 °C to ensure liquid state, or above 32 °C to ensure supercritical state inside the sample, and then depressurizing the sample through an orifice of 2 or 4 mm until complete drop of pressure. Minimum measured temperature on outer pipe wall reached around -50 °C before dry ice CO<sub>2</sub> formation. Maximum measured gradient of temperature observed was around 70 °C. No leakage nor connection damages were observed during the pressure release sequences. Sealability was then confirmed during the internal pressure and external pressure test performed afterwards.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656823000891/pdfft?md5=1661ee17f871a7674d740b5e07ad221c&pid=1-s2.0-S2772656823000891-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139108491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimating the line packing time for pipelines transporting carbon dioxide 估算输送二氧化碳管道的线路包装时间
Carbon Capture Science & Technology Pub Date : 2023-12-25 DOI: 10.1016/j.ccst.2023.100188
Sergey B. Martynov, Richard T.J. Porter, Haroun Mahgerefteh
{"title":"Estimating the line packing time for pipelines transporting carbon dioxide","authors":"Sergey B. Martynov,&nbsp;Richard T.J. Porter,&nbsp;Haroun Mahgerefteh","doi":"10.1016/j.ccst.2023.100188","DOIUrl":"https://doi.org/10.1016/j.ccst.2023.100188","url":null,"abstract":"<div><p>During the operation of pressurised pipelines transporting compressible fluids, line packing is employed as an effective method that uses the pipeline itself as a buffer storage, compensating for fluctuations in the fluid supply or demand. While in large-capacity natural gas transmission systems, reaching maximum operating pressures during line packing is usually not of practical concern, in small capacity pipelines transporting low-compressibility fluids, such as liquid or dense-phase CO<sub>2</sub>, line packing can occur quickly, and therefore, estimating the line packing times becomes important to ensure avoiding exceeding the pipeline maximum allowable operating pressure. In this study, a correlation for estimating the line packing time is derived from the transient mass balance in the pipeline. The proposed correlation accounts for the pipeline overall dimensions, operating pressure and temperature, and the fluid properties, namely density and the expansion coefficient. The correlation is also adopted for the calculation of pipeline unpacking times caused by unbalanced discharge from a pipeline. A verification study on line packing in a dense-phase CO<sub>2</sub> pipeline shows that within the ranges tested, the proposed correlation estimates conservatively the line packing times with ca<em>.</em> 15 % deviation from the results of simulations obtained using a rigorous transient pipeline flow model. The proposed correlation is also verified against predictions obtained using a parabolic flow model and is recommended for estimating line packing times for both dense-phase and gas-phase CO<sub>2</sub> at pressures and temperatures in the ranges 2 - 12 MPa and 280 – 330 K, respectively. The limitations of the proposed line packing time correlation are discussed.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656823000921/pdfft?md5=49ed39f277a23b472bbd75b18420529d&pid=1-s2.0-S2772656823000921-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139090124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simple model for water wash performance in amine scrubbing for CO2 capture 用于二氧化碳捕获的胺洗涤中水洗性能的简单模型
Carbon Capture Science & Technology Pub Date : 2023-12-25 DOI: 10.1016/j.ccst.2023.100186
Benjamin J. Drewry, Gary T. Rochelle
{"title":"Simple model for water wash performance in amine scrubbing for CO2 capture","authors":"Benjamin J. Drewry,&nbsp;Gary T. Rochelle","doi":"10.1016/j.ccst.2023.100186","DOIUrl":"https://doi.org/10.1016/j.ccst.2023.100186","url":null,"abstract":"<div><p>In amine-based capture systems, a water wash is necessary to remove gaseous amine to minimize atmospheric emissions and maximize amine recovery. Water wash simulation requires rigorous thermodynamic and kinetic models like those for absorption and stripping systems. An offline water wash model has been developed based on simplified thermodynamic and mass transfer assumptions to simulate a single-stage water wash for flue gas from gas-fired turbines with little or no aerosol, and to expedite simulations without needing to utilize process modeling software. Calculation of activity coefficients using both Pitzer–Debye–Hückel and Debye–Hückel theory suggest that the liquid phase in a typical water wash will be ideal due to the dilute concentration of molecular and ionic species.</p><p>Vapor phase piperazine (PZ) is predicted with a driving force based on the volatility of the free amine that has not reacted with other species or dissociated into its ionic form, and the predicted outlet concentration is nearly identical to that predicted by rigorous Aspen Plus<sup>Ⓡ</sup> simulations. The predicted UT FEED outlet concentration is 220 ppb compared to 260 ppb predicted by Aspen Plus<sup>Ⓡ</sup>.</p><p>Single-stage water washes are predicted to have single ppm concentration of MEA leaving the wash outlet flue gas. Amino-methyl-propanol (AMP) is predicted to be reduced to 10–30 ppm by a single-stage wash, and is predicted to be a difficult-to-capture amine without further washing steps. This prediction correlates with published TCM data from an ALIGN-CCUS campaign. Amine compounds at a similar or lower volatility to that of PZ are predicted to be reduced to ppb levels via a single-stage wash.</p></div>","PeriodicalId":9387,"journal":{"name":"Carbon Capture Science & Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772656823000908/pdfft?md5=9257ade8c6a60ed763c15c4416b4865b&pid=1-s2.0-S2772656823000908-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139108490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Techno-economic process optimization for a range of membrane performances: What provides real value for point-source carbon capture? 针对各种膜性能的技术经济过程优化:什么能为点源碳捕集提供真正的价值?
Carbon Capture Science & Technology Pub Date : 2023-12-20 DOI: 10.1016/j.ccst.2023.100182
Joshua C. Watson, Kenneth J. Pennisi, Christine Parrish, Sudip Majumdar
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