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以碳四溶剂脱沥青装置生产的脱油沥青为硬组分,选择切割不同馏分的组分作为软组分,采用调合工艺生产出GB/T 15180中低标号沥青AH-30;但由于延度不合格,用催化油浆不能调合出低标号沥青AH-50。 相似文献
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针对洛阳分公司生产重交通道路石油沥青存在的问题进行了分析,研究降低蜡含量、提高针入度比的措施和方法,通过脱油沥青和拔头重油浆调合,可以生产合格的重交通道路石油沥青。 相似文献
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催化裂化油浆含有饱和分和四环以下的芳烃,作为沥青调合组分会导致沥青蜡含量上升,延度、闪点及TOFT后质量变化不合格。利用FCC油浆拔头,将轻馏分作为FCC的原料提高其裂化性能,重油浆作为沥青的调合组分与DOA调合生产沥青,可降低沥青蜡和小分子芳烃的含量,提高油浆与DOA的配伍性,能够调合出符合GB/T15180标准要求的AH-90、AH-70重交道路沥青。 相似文献
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对中石油某厂的脱油沥青(DOA)组成性能进行分析,以DOA、油浆和抽出油等为原料进行沥青调合,并对调合沥青进行软化点、延度、针入度、动力黏度等性质分析。结果表明,DOA与油浆进行沥青调合,可制备满足JTG F40—2004《公路沥青路面施工技术规范》相关技术要求的70#、90#A级重交道路沥青;DOA、油浆和抽出油进行沥青调合,可制备满足相关技术要求的70#、90#A级重交道路沥青;DOA、重脱油和抽出油调合,可制备满足相关技术要求的70#、90#A级重交道路沥青,且70#调合沥青经SBS改性后各项物理性能较好,符合JTG F40—2004改性沥青I-D要求。 相似文献
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催化裂化油浆含有饱和分和四环以下的芳烃,作为沥青调合组分会导致沥青蜡含量上升,延度、闪点及TOFT后质量变化不合格。利用FCC油浆拔头,将轻馏分作为FCC的原料提高其裂化性能,重油浆作为沥青的调合组分与DOA调合生产沥青,可降低沥青蜡和小分子芳烃的含量,提高油浆与DOA的配伍性,能够调合出符合GB/T15180标准要求的AH-90、AH-70重交道路沥青。 相似文献
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济南炼油厂润滑油生产中糠醛抽出油蜡含量很低,富含高分子芳烃组分,而溶剂脱沥青装置所得脱油沥青含有大量的胶质沥青质,利用上述两种组分的特点,采用调合的方法生产出了符合 JISK2207标准的重交通道路沥青.文中介绍了调合工艺条件及产品性质. 相似文献
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The 30# construction asphalt was prepared by chemical condensation of deoiled asphalt (DOA) from vacuum residue propane deasphalting in this study. It decreases the penetration and improves the softening point of DOA effectively based on the chemical condensation technology from experimental results. The group components of DOA were regulated through the addition of furfural extract oil dewaxed oil (DWO) with high content of aromatic components. Therefore, the ductility of condensed asphalt still meet the requirements of construction asphalt in the condition of decreased penetration and increased softening point. The 30# construction asphalt satisfies the standard requirements of the GB/T494-2010 by chemical condensation technology through the effective control of condensation degree with the appropriate blending proportion of DWO. The binary linear mathematical models of the properties of condensed asphalt have been established by regression analysis of the experimental data. This model had the high accuracy and excellent practical values. The properties of condensed asphalt could be accurately predicted and the construction asphalt production cost could be reasonably controlled. In addition, there was little change in the softening point of the construction asphalt pre and post thermal storage, which illustrated that the 30# construction asphalt obtained by chemical condensation of DOA has good thermal storage stability. 相似文献
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以中国石油大庆石化公司FCC油浆为原料、糠醛为溶剂,在剂油体积比为4:1的条件下,通过过滤脱除催化剂粉末,萃取得到FCC油浆抽出油和抽余油。考察FCC油浆抽出油经减压蒸馏拔出不同比例轻组分后的产品沥青性质以及FCC油浆抽出油与不同牌号国标沥青调合得到的产品性质。结果表明:通过减压蒸馏拔出轻组分后,改善了所得油浆抽出油性质,产品可以满足70号、90号等沥青国家标准要求;同时FCC油浆抽出油以不同比例与国标沥青调合后所得到产品性质也有很大的改善。 相似文献
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30# asphalts produced directly by de-oiled asphalt (DOA) showed poor ductility at low temperature and deasphalted oil (DAO) yield was below 17.6%. Combination technology of solvent deasphalting and blending was investigated to produce 30# asphalt and results demonstrated that the 30# blended asphalt with Saudi residue and DOA prepared under conditions of temperature of 105°C, pressure of 4.0 MPa, and solvent/VR ratio of 5 conformed to GB/T 15180–2010 and its asphalt mixture had excellent rutting resistance and water stability performance; meanwhile, DAO yield reached 42.7% and good quality DAO satisfied the feedstock requirement for catalytic cracking process. 相似文献
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重交通道路沥青的研制 总被引:1,自引:0,他引:1
以辽河渣油、辽河渣油丙脱沥青、辽河减粘渣油丙脱油沥青为硬组分,以改质油浆、辽河减三线酚抽出油、辽河焦化蜡油抽出油、改质重油催化裂化油浆为软组分调制高等级道路历青,所获产品符合GB/T15180-94标准 相似文献