Volume 4 issue 2最新文献

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Methane Dissociation Over the Rh-Decorated Ni(100)Surface: A Density Functional Theory Investigation 铑修饰Ni(100)表面甲烷解离:密度泛函理论研究
Volume 4 issue 2 Pub Date : 2021-08-01 DOI: 10.48103/jjeci452021
I. Suleiman
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引用次数: 0
Study Of The Stability Of Water-In-Oil Emulsion Intended for the Extraction of Heavy Metals Application: Copper Ions 萃取重金属铜离子用油包水乳液的稳定性研究
Volume 4 issue 2 Pub Date : 2021-08-01 DOI: 10.48103/jjeci482021
S. Bouranene
{"title":"Study Of The Stability Of Water-In-Oil Emulsion Intended for the Extraction of Heavy Metals Application: Copper Ions","authors":"S. Bouranene","doi":"10.48103/jjeci482021","DOIUrl":"https://doi.org/10.48103/jjeci482021","url":null,"abstract":"This work aims to optimize the parameters that affect the stability of a W/O emulsion to exploit it in the extraction of heavy metals contained in the liquid effluents. The study of the emulsion stability shows that; an emulsification time of 10 minutes, a surfactant concentration of Span80 equal to 3% (w/w), an extractant concentration of Triethylamine N(CH2CH3)3 equal to 5% (w/w), an internal phase concentration of phosphoric acid (H3PO4) of 0.75M, a volume ratio of membrane phase to internal phase of 1, a volume ratio of external phase to the emulsion of 20 and a stirring speed of 180 rpm; lead to the formation of a very stable emulsion with a very low rupture rate of around 1.92% after one hour of contact time. The results of extraction of copper ions revealed that under the best operational conditions, the extraction yield was closed to 93.33% for 20% extractant content, a contact time of 12 minutes, and an initial concentration of copper ions of 400 ppm. The application of this new membrane matrix based on phosphoric acid used as inner phase, sorbitan monooleate as a surfactant, and Triethylamine as extractant has been proven effective for extracting copper ions in water.","PeriodicalId":23783,"journal":{"name":"Volume 4 issue 2","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88513822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Influence of Temperature on CO₂ and H₂S Corrosion Rates of Steel Pipelines Using Alloy-Select Software in the Lebanese Oil and Gas Offshore Environment 黎巴嫩油气海洋环境中温度对钢管CO₂和H₂S腐蚀速率的影响
Volume 4 issue 2 Pub Date : 2021-08-01 DOI: 10.48103/jjeci46202021
Rawanne Farsakouri
{"title":"Influence of Temperature on CO₂ and H₂S Corrosion Rates of Steel Pipelines Using Alloy-Select Software in the Lebanese Oil and Gas Offshore Environment","authors":"Rawanne Farsakouri","doi":"10.48103/jjeci46202021","DOIUrl":"https://doi.org/10.48103/jjeci46202021","url":null,"abstract":"By referring to the fact that corrosion rates alter upon variation of different conditions and no research relevant to Lebanon address corrosion issues yet, this study was conducted based on accurate Lebanese offshore data and water composition. Based on \"Alloy Select Software\", identifying the most suitable material from different alloys was revealed, which turned out to be Copper and Aluminum based alloys. Moreover, corrosion rates were detected under different conditions of Temperature, CO₂, and H₂S and then repeated in the presence of a corrosion inhibitor. Results of these studies proved the significant influence of high temperature accompanied with high CO₂ percentage. However, different results concerning low temperature with different percentages of H₂S were obtained.","PeriodicalId":23783,"journal":{"name":"Volume 4 issue 2","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89747320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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