Effects of non-condensable CCUS impurities (CH4, O2, Ar and N2) on the saturation properties (bubble points) of CO2-rich binary systems at low temperatures (228.15–273.15 K)

IF 2.7 4区 环境科学与生态学 Q3 ENERGY & FUELS
Franklin Okoro, Antonin Chapoy, Pezhman Ahmadi, Rod Burgass
{"title":"Effects of non-condensable CCUS impurities (CH4, O2, Ar and N2) on the saturation properties (bubble points) of CO2-rich binary systems at low temperatures (228.15–273.15 K)","authors":"Franklin Okoro,&nbsp;Antonin Chapoy,&nbsp;Pezhman Ahmadi,&nbsp;Rod Burgass","doi":"10.1002/ghg.2252","DOIUrl":null,"url":null,"abstract":"<p>The present work investigated the effects of some non-condensable impurities (i.e., N<sub>2</sub>, O<sub>2</sub>, CH<sub>4</sub>, and Ar) on the phase behaviour of CO<sub>2</sub>-rich systems at low temperature conditions (228.15–273.15 K). The study focused on bubble point measurements of CO<sub>2</sub>-rich systems using the isothermal (pressure–volume) method at different mole fractions of CO<sub>2</sub> (99.5%–95%). The obtained experimental data were used to validate multi-fluid Helmholtz energy approximation (MFHEA) and Peng–Robinson (PR) equations of state (EoSs). For all data points, the measurements’ uncertainties for temperature and pressure were 0.14 K and 0.03 MPa, respectively. While the composition uncertainty of the CO<sub>2</sub> systems was a maximum of 0.024%. The findings reveal that as the mole fractions of the impurities increased, the bubble point pressures of the binary mixtures were elevated. Among all the investigated impurities, N<sub>2</sub> has the most significant effect on the bubble point pressures of CO<sub>2</sub> binary mixture at all the isotherms and compositions. Both MFHEA and PR models agreed well with the measured equilibrium points. For all systems, the average absolute deviations of the measured experimental data against the MFHEA and PR EoSs, were found to be less than 3.4% and 2.2%, respectively. Although the MFHEA EoS overpredicted most of the data points, the overall trend agreed with the experimental data and was consistent with the data available in the literature. The findings imply that the presence of these non-condensable impurities (even as low as 0.5% mole fraction) increases the risk of two-phase flow at higher pressures in a CO<sub>2</sub>-rich system. © 2023 The Authors. <i>Greenhouse Gases: Science and Technology</i> published by Society of Chemical Industry and John Wiley &amp; Sons Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2252","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Greenhouse Gases: Science and Technology","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ghg.2252","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0

Abstract

The present work investigated the effects of some non-condensable impurities (i.e., N2, O2, CH4, and Ar) on the phase behaviour of CO2-rich systems at low temperature conditions (228.15–273.15 K). The study focused on bubble point measurements of CO2-rich systems using the isothermal (pressure–volume) method at different mole fractions of CO2 (99.5%–95%). The obtained experimental data were used to validate multi-fluid Helmholtz energy approximation (MFHEA) and Peng–Robinson (PR) equations of state (EoSs). For all data points, the measurements’ uncertainties for temperature and pressure were 0.14 K and 0.03 MPa, respectively. While the composition uncertainty of the CO2 systems was a maximum of 0.024%. The findings reveal that as the mole fractions of the impurities increased, the bubble point pressures of the binary mixtures were elevated. Among all the investigated impurities, N2 has the most significant effect on the bubble point pressures of CO2 binary mixture at all the isotherms and compositions. Both MFHEA and PR models agreed well with the measured equilibrium points. For all systems, the average absolute deviations of the measured experimental data against the MFHEA and PR EoSs, were found to be less than 3.4% and 2.2%, respectively. Although the MFHEA EoS overpredicted most of the data points, the overall trend agreed with the experimental data and was consistent with the data available in the literature. The findings imply that the presence of these non-condensable impurities (even as low as 0.5% mole fraction) increases the risk of two-phase flow at higher pressures in a CO2-rich system. © 2023 The Authors. Greenhouse Gases: Science and Technology published by Society of Chemical Industry and John Wiley & Sons Ltd.

Abstract Image

不可冷凝的 CCUS 杂质(CH4、O2、Ar 和 N2)对富二氧化碳二元体系在低温(228.15-273.15 K)下的饱和特性(气泡点)的影响
本研究调查了一些不凝杂质(即 N2、O2、CH4 和 Ar)在低温条件下(228.15-273.15 K)对富二氧化碳体系相行为的影响。研究重点是采用等温(压力-体积)法测量不同二氧化碳摩尔分数(99.5%-95%)下富二氧化碳体系的气泡点。获得的实验数据用于验证多流体亥姆霍兹能量近似(MFHEA)和彭-罗宾逊(PR)状态方程(EoSs)。对于所有数据点,温度和压力的测量不确定性分别为 0.14 K 和 0.03 MPa。二氧化碳系统的成分不确定性最大为 0.024%。研究结果表明,随着杂质摩尔分数的增加,二元混合物的气泡点压力也随之升高。在所有研究的杂质中,N2 对二氧化碳二元混合物在所有等温线和成分下的气泡点压力影响最大。MFHEA 模型和 PR 模型都与测得的平衡点吻合。在所有系统中,测量的实验数据与 MFHEA 和 PR EoS 的平均绝对偏差分别小于 3.4% 和 2.2%。虽然 MFHEA EoS 高估了大部分数据点,但总体趋势与实验数据一致,并与文献中的数据相吻合。研究结果表明,这些不可冷凝杂质(即使分子分数低至 0.5%)的存在会增加富二氧化碳系统在较高压力下发生两相流的风险。© 2023 作者。温室气体:由化学工业协会和 John Wiley & Sons Ltd. 出版。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Greenhouse Gases: Science and Technology
Greenhouse Gases: Science and Technology ENERGY & FUELS-ENGINEERING, ENVIRONMENTAL
CiteScore
4.90
自引率
4.50%
发文量
55
审稿时长
3 months
期刊介绍: Greenhouse Gases: Science and Technology is a new online-only scientific journal dedicated to the management of greenhouse gases. The journal will focus on methods for carbon capture and storage (CCS), as well as utilization of carbon dioxide (CO2) as a feedstock for fuels and chemicals. GHG will also provide insight into strategies to mitigate emissions of other greenhouse gases. Significant advances will be explored in critical reviews, commentary articles and short communications of broad interest. In addition, the journal will offer analyses of relevant economic and political issues, industry developments and case studies. Greenhouse Gases: Science and Technology is an exciting new online-only journal published as a co-operative venture of the SCI (Society of Chemical Industry) and John Wiley & Sons, Ltd
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信