{"title":"Effect of Thiazolidine as thermodynamic inhibitor on hydrate phase equilibrium conditions of carbon dioxide","authors":"Xinrui Hou, Zhigao Sun","doi":"10.1016/j.jct.2025.107582","DOIUrl":null,"url":null,"abstract":"<div><div>This work first reports thiazolidine as a novel inhibitor for carbon dioxide hydrates. Hydrate equilibrium conditions of carbon dioxide with thiazolidine were experimentally determined by isochoric stepwise heating method in this paper. The testing results indicated that adding thiazolidine moved phase equilibrium curve of hydrate toward lower temperature and higher pressure area, demonstrating its effectiveness as a thermodynamic inhibitor. The inhibition effect of thiazolidine on hydrate formation increased when more thiazolidine was added. The inhibition effect was most significant at the concentration of 22.5 wt% thiazolidine within the concentration range measured in this work. Combined with the low toxicity, good biodegradability, excellent water solubility, and simple green synthesis process, thiazolidine is an environmentally friendly thermodynamic inhibitor of carbon dioxide hydrate formation.</div></div>","PeriodicalId":54867,"journal":{"name":"Journal of Chemical Thermodynamics","volume":"212 ","pages":"Article 107582"},"PeriodicalIF":2.2000,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Chemical Thermodynamics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0021961425001363","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This work first reports thiazolidine as a novel inhibitor for carbon dioxide hydrates. Hydrate equilibrium conditions of carbon dioxide with thiazolidine were experimentally determined by isochoric stepwise heating method in this paper. The testing results indicated that adding thiazolidine moved phase equilibrium curve of hydrate toward lower temperature and higher pressure area, demonstrating its effectiveness as a thermodynamic inhibitor. The inhibition effect of thiazolidine on hydrate formation increased when more thiazolidine was added. The inhibition effect was most significant at the concentration of 22.5 wt% thiazolidine within the concentration range measured in this work. Combined with the low toxicity, good biodegradability, excellent water solubility, and simple green synthesis process, thiazolidine is an environmentally friendly thermodynamic inhibitor of carbon dioxide hydrate formation.
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