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导热油与导热油加热系统 总被引:5,自引:0,他引:5
导热油加热系统与蒸汽加热系统相比具有投资低、热效率高、操作简单等优点。本文就导热油的种类、特征及如何选择合适的导热油作了较详细的说明并对热油炉及导热油加热系统作了简单介绍。 相似文献
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采用气相色谱法测定环己酮中微量轻组分含量,探讨了色谱柱、柱温、气化温度、检测温度、载气流量对环己酮及其组分色谱分离的影响。结果表明:选用强极性毛细管色谱柱AB-Wax 60 m×0.32 mm×0.5μm,采用程序升温法,以升温速率20℃/min升温至色谱柱初始温度100℃,保持时间10 min,再以10℃/min升至色谱柱终温150℃,保持时间30 min,在进样口温度为250℃,氢火焰离子化检测器温度为280℃,载气为氮气,流量为1.5 mL/min,进样量为0.6μL的条件下,采用气相色谱仪测定环己酮中微量轻组分含量,环己酮中微量轻组分能得到很好地分离,通过峰面积外标法定量,测定结果的加标回收率为96.3%~97.2%,相对标准偏差为0.86%~1.13%。 相似文献
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燕通YD-325是一种热稳定性、耐热性能、抗污染性强的国产导热油。介绍了锦州石化苯乙烯装置导热油工艺流程和生产状况,燕通YD-325导热油的更换及应用效果。该导热油在苯乙烯装置上成功应用,达到节能降耗,装置安全平稳长周期运行的目的。 相似文献
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以煤间接液化轻质馏分油为原料,采用特种油催化剂通过一段高压加氢法生产优质特种溶剂油,特种油产品的烯烃质量分数1.25%,总硫质量分数0.05×10-6,芳烃体积分数0.1%,基本能满足特种油指标要求。 相似文献
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Development of gas turbines fueled with light cycle oil (LCO) and oil mixture of LCO and diesel light oil (LO) requires an understanding of the droplet burning and vaporization characteristics of those oils. The present study is devoted to comparing the burning characteristics of isolated fuel droplets composed of an LCO and an LO. The tests were conducted in an atmospheric hot-air chamber preset at 1173 K, and the examined LCO had a lower cetane number but higher volatility and aromatics content compared to LO. It was demonstrated that the burning of the LCO droplet was sootier, while that of the LO droplet was more disruptive. At the tested temperature, coke formation was indistinct for both the oils, whereas slightly higher ignition delay time was shown for the LO droplet. The microexplosive burning more or less complicated the time-series droplet size d, an explicit burning rate constant, however, was still definable according to the d2-law to show the overall regression speed of the droplet surface area d2 with burning time t. The rate constant exhibited little difference for smaller LCO and LO droplets but was greater for LO when the droplet was larger. The rate constant also gradually increased with increasing the initial droplet diameter d0, which caused the relative size d/d0 to be unified (normalized) into a single curve by a burning time t/d0n (1.0<n<2.0). Analysis revealed that this unification resulted from the respective overlaps of the unsteady and quasi-steady burning phases for differently sized droplets. Further, it was clarified that the unification and analysis are generally valid to isolated liquid fuel droplet burning in hot ambiences. 相似文献
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Volatile by-products during heat polymerization of soybean oil at 330°C were analyzed using GC-MS and NMR. Color and viscosity
changes were monitored for the heat-polymerized soybean oil and the by-products. About 90% (w/w) of the by-products were decanoic,
palmitic, linoleic, oleic, and stearic acids and cis-9-tricosene. The by-products also contained small amounts of 3-eicosene, 9,17-octadecadienal, and cyclotetracosene. The weight
percentage of decanoic acid increased with reaction time, whereas those of other components showed no trends. 相似文献
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