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中国石油庆阳石化公司120 Mt/a柴油加氢装置始建于2010年7月,工艺技术方案采用抚顺石油化工研究院开发的FHI柴油加氢改质异构降凝技术及配套催化剂。2018年10月,考虑连续重整装置加工量存在缺口。根据改造装置的规模、原料特性、总加工方案中目的产品的要求及全厂氢气平衡,在原抚顺石油化工研究院开发的FHI柴油加氢改质异构降凝技术的基础上,采用容垢能力更强的FZC系列保护剂、FF-66精制催化剂和FC-16B加氢改质降凝催化剂级配体系。达到提高石脑油收率及满足国Ⅵ加氢柴油质量要求[1]。 相似文献
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国内某炼厂0.8 Mt/a加氢裂化装置由于所产柴油产品产率偏低、密度偏低,导致全厂仅能生产调和硫含量低于350μg/g的国Ⅲ标准车用柴油产品。根据柴油国V质量升级的需要以及目前装置运行过程中存在的问题,对该装置进行技术改造,催化剂更换为抚顺石油化工研究院开发的FF-46加氢精制、FDW-3临氢降凝和FC-14B加氢改质催化剂组合,采用加氢改质(降凝)操作模式,由一段串联全循环工艺流程改为一段串联一次通过工艺流程,装置改造后可以生产硫含量低于10μg/g的国V标准车用柴油产品,柴油产品密度由800~805 kg/m3提高至812~810.4 kg/m3,柴油产品产率由50.46%提高至88.90%~97.20%。同时考虑到装置原料变差的可能性,通过切换操作,工艺流程可以由一段串联一次通过工艺流程恢复至一段串联全循环工艺流程,给原料加工和生产操作带来极大的适应性。 相似文献
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基于柴油产品质量升级的需求,中国石化大连石油化工研究院(FRIPP)开发了FHIDW加氢改质技术及配套FF-46加氢精制催化剂、FC-14B加氢改质催化剂和FDW-3临氢降凝催化剂.该技术及催化剂级配体系在格尔木炼油厂0.8 Mt·a-1加氢改质装置上的工业应用情况表明,级配催化剂体系对原料适应性强,装置运转平稳,操作灵活性高,催化剂失活速率慢,产品分布合理且质量优异,在降低柴油产品凝点的同时可以明显改善其密度和十六烷值,解决了改造前装置生产重柴油密度偏低的问题,为炼油厂生产符合国V质量标准的柴油提供了技术保障. 相似文献
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格尔木炼油厂4.0 MPa级低压加氢/降凝装置投产后,在实行降凝生产方案时因氢源不足导致降凝柴油冷滤点不稳定,降凝反应频繁提温,装置生产难以为继。通过对甲醇生产中闲置的变压吸附提纯氢气装置改造,引入高纯度、低杂质含量氢气,降凝生产的难题得以解决,装置的处理能力得到大幅提高。 相似文献
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前郭石化分公司柴油加氢装置工艺技术路线研究 总被引:1,自引:0,他引:1
前郭石化分公司柴油产品质量与国家新标准存在差距,主要原因是催化裂化柴油质量差,催化柴油必须经过加氢装置进行处理。根据企业实际生产情况,柴油加氢装置宜选择加氢精制、改质及临氢降凝三位一体的工艺技术路线,这样既能满足提高柴油产品质量的要求,又能生产经济效益比较好的低凝柴油。 相似文献
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生产清洁燃料是目前世界炼油工业的发展趋势。本文介绍了国内外柴油生产的现状及质量发展趋势,探讨了目前国内外生产新标准柴油的相关技术及发展,并以此为依据,找出目前国内柴油与发达国家的差距。 相似文献
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Vegetable oils have been studied as a feasible substitute for diesel fuel, and short term tests using neat vegetable oils have shown results comparable to those of diesel fuel. However, engine problems arise due to the high oil viscosity after long-term usage. Vegetable oil/diesel blending as biodiesel fuel has been shown to be one technique to reduce vegetable oil viscosity. The goal of this research is to demonstrate the feasibility of producing this biodiesel fuel via vegetable oil extraction using diesel-based reverse-micellar microemulsions as an extraction solvent. In this extraction technique, peanut oil is directly extracted into the oil phase of the microemulsion based on the “likes dissolve likes” principle and the product of the extraction process is peanut oil/diesel blend. The results show that diesel-based reverse micellar extract oil from peanuts more effectively than both diesel and hexane alone under the same extraction condition. An extraction efficiency of 95% was achieved at room temperature and short extraction time of 10 min in just a single extraction step. The extracted peanut oil/diesel blend was tested for peanut oil fraction, viscosity, cloud point and pour point, which all meet the requirements for biodiesel fuel. 相似文献
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汽油对柴油质量的影响及柴油质量存在的问题 总被引:1,自引:0,他引:1
通过改变柴油中汽油的加入量,探讨了柴油中混入汽油时对柴油闪点、凝点、冷滤点、馏程几项指标的影响,并分析了目前我国柴油质量存在的主要问题. 相似文献
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In this experiment, argemone oil, toxic and highly viscous oil, was treated in two different processes to use this as an adulterer to petroleum diesel. Firstly oil was passed through several processes to lower it viscosity and to improve its properties. The resultant oil, refined argemone oil (RAO), was compared with traditional transesterified biodiesel (TEO) prepared from crude argemone oil. Results indicated that RAO had properties closer to those of TEO and important properties like viscosity, acid value, iodine value and pour point of RAO were also within the acceptable range. Engine testing revealed that up to 42% increment in engine runtime was recorded when only 10% RAO was added to the petroleum diesel, and this is probably the most feasible technique to convert argemone oil to biofuel additive with petroleum diesel. GC–MS analysis revealed the presence of methyl esters of several saturated and unsaturated fatty acids in both RAO and TEO. However, methyl eicosanoate was present in the highest concentration in these oils. 相似文献
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李学东 《合成材料老化与应用》2014,(3):48-52
柴油流动改进剂的降凝机理与润滑油降凝剂的降凝机理基本相同。因此丙烯酸高级酯与第二单体的共聚物对柴油的降凝效果应与润滑油的降凝效果基本相同。用几种溶剂采用溶液聚合方法,用正交试验法或均匀试验法对丙烯酸高级酯与第二单体进行共聚试验,共聚物做柴油标准油的降凝测定,以共聚物降凝度为考察目标,探讨丙烯酸高级酯与第二单体共聚物对柴油和柴油馏分的降凝效果。 相似文献
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Giancarlo Tomazzoni Marilena Meira Cristina M. Quintella Giuliano Fernandes Zagonel Bill Jorge Costa Paulo Roberto de Oliveira Iuri Muniz Pepe Pedro Ramos da Costa Neto 《Journal of the American Oil Chemists' Society》2014,91(2):215-227
In order to identify possible adulteration of onroad diesel with vegetable oil, fluorescence spectroscopy was used as the analytical technique to differentiate between vegetable oil and biodiesel in diesel blends. Diesel/oil and diesel/biodiesel blends made with different proportions of soy, canola or waste cooking oil were analyzed. The reduced cost of analysis using fluorescence spectroscopy together with the reliability of the results suggest that this technique could be of great use in differentiating between diesel, biodiesel and vegetable oil and could therefore be used for rapid identification or confirmation of adulterated diesel. Furthermore, a compact fluorescence spectrophotometer with an LED excitation source could be used in gas stations or fuel distributors for diesel quality control because of its practicality, low cost and reliability. 相似文献
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柠檬酸-新戊二醇-柠檬酸-环烷酸-十八醇爪形大分子的合成、表征与降滤性质 总被引:1,自引:0,他引:1
以新戊二醇、柠檬酸为原料,以对甲苯磺酸为催化剂,甲苯为溶剂,在120℃油浴中反应,合成了以新戊二醇为核的多羟基多酸爪状物小分子柠檬酸-新戊二醇-柠檬酸(CNC);再利用酯化反应依次与带有功能化基团的环烷酸、十八醇分别在140℃和180℃油浴中接枝,合成了新型的多元酯类爪形大分子柠檬酸-新戊二醇-柠檬酸-环烷酸-十八醇(CNC-NO)。用1HNMR及IR对合成的两种化合物进行了结构表征;结果表明,合成的CNC和CNC-NO与所设计的分子结构吻合。用元素分析确定了CNC的化学组成为C17H24O14。合成的CNC-NO不溶于水,溶于非极性的有机溶剂。将CNC-NO按600μg/g添加到轻柴油中,柴油的冷滤点可降低6℃。 相似文献