A new approach of CO2 separation by applying rapid expansion of supercritical CO2 rich natural gas

Q1 Earth and Planetary Sciences
Saripudin , Tutuka Ariadji , Sanggono Adisasmito , Leksono Mucharam , Doddy Abdassah
{"title":"A new approach of CO2 separation by applying rapid expansion of supercritical CO2 rich natural gas","authors":"Saripudin ,&nbsp;Tutuka Ariadji ,&nbsp;Sanggono Adisasmito ,&nbsp;Leksono Mucharam ,&nbsp;Doddy Abdassah","doi":"10.1016/j.ptlrs.2022.03.005","DOIUrl":null,"url":null,"abstract":"<div><p>The previous methods for CO<sub>2</sub> separation from CO<sub>2</sub> rich natural gas led to expensive production costs. This work was implemented to overcome the problems utilizing a new approach economically. The cooling and rapid expansion processes were integrated for the CO<sub>2</sub> separation from CO<sub>2</sub> rich natural gas on the supercritical condition. The experimental apparatus was newly constructed to perform the experiments, and the results were simulated using a various equation of state. The result reveals that the inlet temperature of supercritical expansion diminished the outlet temperature and the gas condensed easily. The simulation indicated that the 70% CO<sub>2</sub> in natural gas was condensed easier than 45% CO<sub>2</sub>. We found that the outlet temperature of −42 °C and the vapor fraction of 0.69 was attained at the CO<sub>2</sub> composition of 70%. Besides, the pressure drop change influences the vapor fraction at various CO<sub>2</sub> compositions. The vapor fraction under supercritical diminished significantly compared with the non-supercritical condition. The expansion coefficient determined utilizing the equation of state escalates by the enhancement of expansion inlet temperature based on CO<sub>2</sub> composition in natural gas. The acid gas equation of state was the perfect equation to estimate the expansion coefficient with the absolute average error of 4.83%. This work suggests that the CO<sub>2</sub> separation from CO<sub>2</sub> rich natural gas with the cooling and rapid expansion method promotes the new approach to overcome the disadvantages of previous methods.</p></div>","PeriodicalId":19756,"journal":{"name":"Petroleum Research","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Petroleum Research","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2096249522000254","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 1

Abstract

The previous methods for CO2 separation from CO2 rich natural gas led to expensive production costs. This work was implemented to overcome the problems utilizing a new approach economically. The cooling and rapid expansion processes were integrated for the CO2 separation from CO2 rich natural gas on the supercritical condition. The experimental apparatus was newly constructed to perform the experiments, and the results were simulated using a various equation of state. The result reveals that the inlet temperature of supercritical expansion diminished the outlet temperature and the gas condensed easily. The simulation indicated that the 70% CO2 in natural gas was condensed easier than 45% CO2. We found that the outlet temperature of −42 °C and the vapor fraction of 0.69 was attained at the CO2 composition of 70%. Besides, the pressure drop change influences the vapor fraction at various CO2 compositions. The vapor fraction under supercritical diminished significantly compared with the non-supercritical condition. The expansion coefficient determined utilizing the equation of state escalates by the enhancement of expansion inlet temperature based on CO2 composition in natural gas. The acid gas equation of state was the perfect equation to estimate the expansion coefficient with the absolute average error of 4.83%. This work suggests that the CO2 separation from CO2 rich natural gas with the cooling and rapid expansion method promotes the new approach to overcome the disadvantages of previous methods.

超临界富CO2天然气快速膨胀分离CO2的新方法
以前从富含CO2的天然气中分离CO2的方法导致了昂贵的生产成本。这项工作的实施是为了利用一种经济的新方法来克服这些问题。在超临界条件下,将冷却和快速膨胀过程结合起来,从富含CO2的天然气中分离CO2。新构建的实验装置用于进行实验,并使用各种状态方程模拟结果。结果表明,超临界膨胀的入口温度降低了出口温度,气体容易凝结。模拟表明,天然气中70%的CO2比45%的CO2更容易冷凝。我们发现,当CO2成分为70%时,出口温度为−42°C,蒸汽分数为0.69。此外,压降变化影响不同CO2组成下的蒸汽分数。与非超临界条件相比,超临界条件下的蒸汽分数显著降低。利用状态方程确定的膨胀系数随着基于天然气中CO2成分的膨胀入口温度的提高而增加。酸性气体状态方程是估算膨胀系数的完美方程,其绝对平均误差为4.83%。这项工作表明,用冷却和快速膨胀法从富含CO2的天然气中分离CO2,促进了克服以往方法缺点的新方法。
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
Petroleum Research
Petroleum Research Earth and Planetary Sciences-Geology
CiteScore
7.10
自引率
0.00%
发文量
90
审稿时长
35 weeks
×
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