{"title":"Oxidation characteristics of heavy crude oil in ignition process","authors":"Yifan Liu, Kai Liu","doi":"10.1515/jaots-2016-0180","DOIUrl":null,"url":null,"abstract":"Abstract: The ignition process has a significant influence on the success of in-situ combustion at heavy oil reservoirs. During this process, oxidation reactions between crude oil and injected air mainly occurred. In this paper, a series of oxidation experiments were performed at different reaction temperatures and air-oil ratios to investigate the heavy oil oxidation characteristics at different stages of the ignition process. The results revealed that heat release and production of CO and CO2 were observed during the entire oxidation process, while transformation of heavy components (resins and asphaltenes) in crude oil to light components (saturates and aromatics) and production of H2S occurred at higher temperatures. The heavy oil oxidation in ignition process can be divided into three stages based on physical and chemical characteristics of the reaction, they are low-temperature oxidation, pseudo-high temperature oxidation, and high temperature oxidation, respectively.","PeriodicalId":14870,"journal":{"name":"Journal of Advanced Oxidation Technologies","volume":"33 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Advanced Oxidation Technologies","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/jaots-2016-0180","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q","JCRName":"Chemistry","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract: The ignition process has a significant influence on the success of in-situ combustion at heavy oil reservoirs. During this process, oxidation reactions between crude oil and injected air mainly occurred. In this paper, a series of oxidation experiments were performed at different reaction temperatures and air-oil ratios to investigate the heavy oil oxidation characteristics at different stages of the ignition process. The results revealed that heat release and production of CO and CO2 were observed during the entire oxidation process, while transformation of heavy components (resins and asphaltenes) in crude oil to light components (saturates and aromatics) and production of H2S occurred at higher temperatures. The heavy oil oxidation in ignition process can be divided into three stages based on physical and chemical characteristics of the reaction, they are low-temperature oxidation, pseudo-high temperature oxidation, and high temperature oxidation, respectively.
期刊介绍：
The Journal of advanced oxidation technologies (AOTs) has been providing an international forum that accepts papers describing basic research and practical applications of these technologies. The Journal has been publishing articles in the form of critical reviews and research papers focused on the science and engineering of AOTs for water, air and soil treatment. Due to the enormous progress in the applications of various chemical and bio-oxidation and reduction processes, the scope of the Journal is now expanded to include submission in these areas so that high quality submission from industry would also be considered for publication. Specifically, the Journal is soliciting submission in the following areas (alphabetical order): -Advanced Oxidation Nanotechnologies -Bio-Oxidation and Reduction Processes -Catalytic Oxidation -Chemical Oxidation and Reduction Processes -Electrochemical Oxidation -Electrohydraulic Discharge, Cavitation & Sonolysis -Electron Beam & Gamma Irradiation -New Photocatalytic Materials and processes -Non-Thermal Plasma -Ozone-based AOTs -Photochemical Degradation Processes -Sub- and Supercritical Water Oxidation -TiO2 Photocatalytic Redox Processes -UV- and Solar Light-based AOTs -Water-Energy (and Food) Nexus of AOTs
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