本文關(guān)鍵詞：燃料油與原油混合熒光特性的變化研究　出處：《大連海事大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 燃料油 原油 混合熒光特性 風(fēng)化

【摘要】：海面溢油會給海洋環(huán)境帶來嚴(yán)重的威脅。怎樣快速、準(zhǔn)確的確定溢油源以采取有效的治理措施,是當(dāng)前溢油研究的重要任務(wù)。目前,溢油鑒別多以單油為主,對燃料油與原油混合油指紋特征的研究較少。本研究分析了燃料油與原油混合熒光特性的變化規(guī)律,以期為海上溢油的油指紋特征提供技術(shù)支持。本研究采用同步掃描熒光光譜法檢測大慶、科威特、迪拜、阿曼及印尼五種原油和兩種燃料油的熒光特征。根據(jù)單油的熒光特征進(jìn)行聚類,確定燃1號與大慶、科威特,燃2號與迪拜、阿曼、印尼混合的五組樣品。在3個特征波長(304±2nm、 336±2nm、388±2nm)下,分析燃料油與原油混合熒光特性與混合比例的關(guān)系。通過30天的風(fēng)化實驗,分析風(fēng)化作用對燃料油與原油混合熒光特性的影響。燃料油1號與原油混合：燃1號與大慶、科威特的混合熒光強度值受混合比例的影響顯著。混合熒光強度值隨著燃料油1號所占比例的增加而增強,即隨著熒光強度值較強的組分所占比例的增加而增強。在336nm波長處兩者的線性關(guān)系最好,相關(guān)系數(shù)R2分別為0.9871、0.9828。通過30天風(fēng)化實驗得出：前10天,隨著輕質(zhì)組分揮發(fā)混合熒光強度值略有增大后降低的變化趨勢,10天后基本維持穩(wěn)定,三十天的短期風(fēng)化對混油的熒光特性影響不大。另外,考察了季節(jié)對混合熒光特性的影響,夏、冬兩期風(fēng)化后混油的熒光強度值相差不大,均隨著燃料油1號所占比例的增加而增強,與未風(fēng)化時混油的熒光特性變化一致。燃料油2號與原油混合：燃2號與迪拜、阿曼及印尼的混合熒光強度值受混合比例的影響顯著,隨著熒光強度值強的組分所占比例的增加而增強。在388nm波長處兩者的線性關(guān)系最好,相關(guān)系數(shù)R2分別為0.9956、0.9980、0.9801。通過30天風(fēng)化可知：前13天,隨著輕質(zhì)組分的揮發(fā)混合熒光強度值略有變化,13天后基本維持穩(wěn)定。三十天風(fēng)化期間混合熒光強度值波動范圍較小,可認(rèn)為基本不受風(fēng)化作用的影響。風(fēng)化后油樣的混合熒光強度值隨著熒光強度值較強的組分所占比例的增加而增強,與未風(fēng)化時熒光特性變化一致。
[Abstract]:Oil spill on the sea will bring serious threat to marine environment. How to determine the source of oil spill quickly and accurately in order to take effective control measures is an important task of current oil spill research. At present, single oil is the main source of oil spill identification. The fingerprint characteristics of fuel oil and crude oil mixture are less studied. The variation of fluorescence characteristics of fuel oil and crude oil mixture is analyzed in this paper. In order to provide technical support for oil fingerprint characteristics of offshore oil spill, this study uses synchronous scanning fluorescence spectrometry to detect Daqing, Kuwait and Dubai. The fluorescence characteristics of five kinds of crude oil and two kinds of fuel oil in Oman and Indonesia. According to the fluorescence characteristics of single oil cluster, it is determined that No.1 and Daqing, Kuwait, No.2 and Dubai, Oman. Five groups of mixed samples were obtained from Indonesia at three characteristic wavelengths (304 鹵2nm, 336 鹵2nm) and 388 鹵2nm (respectively). The relationship between the mixing fluorescence characteristics of fuel oil and crude oil and the mixing ratio was analyzed. The weathering experiment was carried out for 30 days. The influence of weathering on the fluorescence characteristics of fuel oil and crude oil was analyzed. The mixed fluorescence intensity value in Kuwait is significantly affected by the mixing ratio, and the mixed fluorescence intensity value increases with the increase of the proportion of fuel oil No. 1. The linear relationship was the best at the wavelength of 336 nm, and the correlation coefficient R2 was 0.9871, respectively. 0.9828. through 30 days weathering experiment, it is concluded that the change trend of fluorescence intensity decreased with the increase of light component volatilization intensity in the first 10 days is basically stable after 10 days. The short-term weathering for 30 days had little effect on the fluorescence characteristics of the mixed oil. In addition, the effects of seasons on the mixed fluorescence characteristics were investigated. The fluorescence intensity of the mixed oil was not different after weathering in summer and winter. Both increased with the increase of the proportion of fuel oil No. 1, which was consistent with the fluorescence characteristics of the mixed oil when it was not weathered. Fuel oil No. 2 mixed with crude oil: fuel oil No. 2 and Dubai. The mixed fluorescence intensity of Oman and Indonesia was significantly affected by the mixing ratio, and increased with the increase of the proportion of the components with strong fluorescence intensity. The linear relationship between the two groups was the best at the wavelength of 388nm. The correlation coefficient R ~ 2 is 0.9956 ~ 0.9980 ~ 0.9801.Through weathering for 30 days, it can be seen that the fluorescence intensity of the mixture changed slightly with the volatilization of light components in the first 13 days. After 13 days, it remained stable basically. During 30 days weathering, the fluctuation range of mixed fluorescence intensity was relatively small. It can be concluded that the mixed fluorescence intensity of the oil samples after weathering increases with the increase of the proportion of the components with strong fluorescence intensity, which is consistent with the change of fluorescence characteristics in the unweathered oil samples.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：X55

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