本文關(guān)鍵詞： 重油 超聲波 加強劑 協(xié)同效應 降黏　出處：《石油煉制與化工》2017年04期 　論文類型：期刊論文

【摘要】：以重油為研究對象,在不加水的條件下,利用超聲波協(xié)同加強劑裂解降黏,分析了重油處理前后四組分組成的變化情況�？疾炝思訌妱舛�、處理時間和超聲功率對重油降黏效果的影響,分析了處理前后重油黏度和流動性能的變化,并對重油黏度恢復情況進行了測試分析,同時采用紅外光譜和氣相色譜分析了處理前后重油的結(jié)構(gòu)變化。結(jié)果表明:加強劑濃度對降黏效果影響最大,其次為處理時間和超聲功率;加強劑濃度越大,降黏效果越好;隨處理時間和超聲功率的增大,降黏率先增加后略微下降;超聲波與加強劑具有協(xié)同效應,使重油中長鏈大分子、芳環(huán)和雜原子發(fā)生斷鏈、加氫、開環(huán)等系列反應,能夠在常溫條件下降低重油黏度,改善流動性能,顯著提高重油品質(zhì)。
[Abstract]:Taking heavy oil as the research object, the changes of the composition of the four components before and after the treatment of heavy oil were analyzed by using ultrasonic wave to cooperate with the cracking agent to reduce viscosity, and the concentration of the reinforcing agent was investigated. The effects of treatment time and ultrasonic power on viscosity reduction of heavy oil were analyzed. The changes of viscosity and fluidity of heavy oil before and after treatment were analyzed, and the viscosity recovery of heavy oil was tested and analyzed. At the same time, the structural changes of heavy oil before and after treatment were analyzed by infrared spectroscopy and gas chromatography. The results showed that the concentration of reinforcing agent had the greatest effect on viscosity reduction, followed by treatment time and ultrasonic power. The higher the concentration of reinforcing agent, the better the viscosity reduction effect; With the increase of the treatment time and ultrasonic power, the viscosity drop increased first and then decreased slightly. Ultrasonic wave has synergistic effect with intensifier, which causes chain breaking, hydrogenation and ring opening reaction of long chain macromolecule, aromatic ring and hetero atom in heavy oil, which can reduce the viscosity of heavy oil and improve the fluidity of heavy oil at room temperature. Improve the quality of heavy oil significantly.
【作者單位】： 常州大學機械工程學院;常州大學石油化工學院;中國石化塔河煉化有限責任公司;
【基金】：國家國際科技合作專項(2011DFR60750)
【分類號】：TE624
【正文快照】： 近年來,隨著油田的深度開采,原油重質(zhì)化、劣質(zhì)化趨勢加重[1],表現(xiàn)為原油密度和黏度大,金屬含量高等特點,導致重油在開采、運輸和加工過程中存在極大困難。為了降低重油黏度,解決開采和管道輸送中的問題,國內(nèi)外開發(fā)出一系列降黏方法[2]。目前,常見的降黏技術(shù)有摻稀油降黏、加熱

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