Article(id=1322559924568183038, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1742400000000, receivedDateStr=2025-03-20, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793252457991, onlineDateStr=2026-10-29, pubDate=1774368000000, pubDateStr=2026-03-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793252457991, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793252457991, creator=13701087609, updateTime=1793252457991, updator=13701087609, issue=Issue{id=1322559901990240737, tenantId=1146029695717560320, journalId=1225396423026438145, year='2026', volume='46', issue='3', pageStart='1', pageEnd='330', issueExtLink='null', onlineDate='null', pubDate='1774368000000', pubDateStr='2026-03-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793252452609, creator='13701087609', updateTime=1793252731500, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322561071810991099, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322561071810991100, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322559901990240737, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=322, endPage=330, ext={EN=ArticleExt(id=1322559924727566591, articleId=1322559924568183038, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Study on the Performance of CO₂ Absorption and Mineralization Reaction Under the Condition of Fly Ash Coupling Mixed Amine Solution, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=

As an important industrial by-product produced in the process of coal-fired power generation, fly ash shows great potential in CO₂ mineralization. In order to solve the problem of low efficiency of direct mineralization of CO₂ by fly ash, N-methyldiethanolamine (MDEA)/diisopropanolamine (DIPA) mixed amine solution was used to absorb CO₂ to improve the subsequent CO₂ fixation efficiency. The effects of different MDEA/DIPA ratio, solid-liquid ratio, reaction temperature and reaction time on CO₂ absorption and mineralization efficiency were systematically analyzed. The results show that the performance of MDEA/DIPA mixed amine solution is better than that of monoamine solution. When the MDEA∶DIPA is 1∶3, the solid-liquid ratio is 270 g/L, the reaction temperature is 45 ℃, and the reaction time is not less than 30 min, the CO₂ loading is the highest, which is 1.66 mol/L, and the mineralization efficiency is 45.2%. The results of FTIR, XRD and TG analysis show that MDEA/DIPA mixed amine solution mainly contained , , protonated MDEA/DIPA and carbamate. Compared with the original fly ash sample, the content of CaCO₃ in the solid product increased significantly, and mainly existed in the form of calcite. MDEA/DIPA mixed amine solution and fly ash combine CO₂ absorption and mineralization, which provides a reference for CO₂ storage and fly ash waste treatment.

, authors=Miaoyan ZHANG, Shujie ZHAO, Wei LU, authorsList=Miaoyan ZHANG, Shujie ZHAO, Wei LU, authorCompany=null, correspAuthors=Wei LU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322559925553844488, articleId=1322559924568183038, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=粉煤灰耦合混合胺溶液条件下CO₂吸收矿化反应性能研究, columnId=1226462297560892399, journalTitle=矿业研究与开发, columnName=选矿与资源综合利用, runingTitle=null, highlight=null, articleAbstract=

粉煤灰作为燃煤发电过程中产生的重要工业副产品，在CO₂矿化方面展现出巨大的应用潜力。为解决粉煤灰直接矿化CO₂效率低的问题，采用N-甲基二乙醇胺（MDEA）/二异丙醇胺（DIPA）混合胺溶液吸收CO₂，以提高后续CO₂的固定效率。系统分析了不同MDEA/DIPA配比、固液比、反应温度和反应时间对CO₂吸收和矿化效率的影响。结果表明，MDEA/DIPA混合胺溶液的性能优于单胺溶液，当MDEA∶DIPA为1∶3、固液比为270 g/L、反应温度为45 ℃、反应时间不少于30 min时，CO₂负荷量最高，为1.66 mol/L，矿化效率为45.2%。FTIR、XRD和TG分析结果表明，MDEA/DIPA混合胺溶液中主要含有、、质子化MDEA/DIPA和氨基甲酸酯；与原始粉煤灰样品相比，固体产物中CaCO₃含量显著增加，且主要以方解石形式存在。MDEA/DIPA混合胺溶液和粉煤灰将CO₂吸收与矿化相结合，为CO₂封存和粉煤灰废物处理提供了借鉴。

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张妙妍（1999—），女，河北邢台人，硕士研究生，主要从事安全工程研究。E-mail: zhangmiaoyan666@163.com

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张妙妍（1999—），女，河北邢台人，硕士研究生，主要从事安全工程研究。E-mail: zhangmiaoyan666@163.com

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