共查询到18条相似文献,搜索用时 62 毫秒
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对国内外典型的FCC汽油选择性深度加氢脱硫工艺进行综述。详细介绍了OCT-M系列、RSDS系列、CODS工艺、FRS工艺、GARDES工艺、CDTECH系列、Prime-G系列以及SCANfining系列等工艺原理及工艺过程,并指出了上述工艺的特点及应用。 相似文献
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介绍了玉门炼油厂320 kt/a催化裂化汽油加氢脱硫装置,首次采用了中国石油石油化工研究院开发研究的DSO-FCC汽油加氢脱硫技术。结果表明:加氢后重汽油硫含量随原料硫含量波动,原料平均硫含量从451μg/g降到166μg/g,脱硫率为63.2%,RON平均损失0.35个单位,在大幅度降低硫含量的同时辛烷值损失较小,能够保证国Ⅲ清洁汽油的出厂。 相似文献
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介绍了国内外FCC汽油中硫存在形式、加氢脱硫反应原理以及研究进展。通过对加氢脱硫活性相结构和其与催化剂活性关系的分析,对不同加氢脱硫制备方法进行分析,对加氢脱硫催化剂的载体、活性组分、助剂方面加以分析,可知发展高活性、高选择性的催化剂仍是现今研究的热点。 相似文献
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Synthesis of ZSM-5/SAPO-11 composite and its application in FCC gasoline hydro-upgrading catalyst 总被引:2,自引:0,他引:2
This article describes the synthesis, characterization and application of a novel aluminosilicate/silicoaluminophosphate composite zeolite ZSM-5/SAPO-11. The composite was synthesized by the in situ overgrowth of SAPO-11 on ZSM-5 and was characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transformed infrared (FT-IR) spectrometry, N2 adsorption and infrared spectroscopy of adsorbed pyridine. The results were compared with those of the mechanical mixture composed of individual ZSM-5 and SAPO-11. In the mechanical mixture, the ZSM-5 phase was morphologically separate from the SAPO-11 phase, while the ZSM-5/SAPO-11 composite existed in a form of a core-shell structure, with the ZSM-5 phase as the core and the SAPO-11 phase as the shell. Compared with the mechanical mixture, the composite had more mesopores and moderate acidity distribution, which could accelerate the diffusion of substances and enhance the synergetic effect between Brönsted and Lewis acids. The comparison of the catalytic performances of the mechanical mixture and the composite-based Ni–Mo catalysts for FCC gasoline hydro-upgrading showed that, due to the above advantages of the composite, the corresponding catalyst yielded improved gasoline research octane number, high liquid yield, good desulfurization activity and lower coke amount and thus could be considered as a potential catalyst system for hydro-upgrading FCC gasoline. 相似文献
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To solve the contradiction between ultradeep hydrodesulfurization (HDS) and octane recovery in clean gasoline production, this article proposes a novel two‐stage fluid catalytic cracking (FCC) gasoline hydro‐upgrading process with the selective HDS catalyst in the first reactor and the complemental HDS and octane recovery catalyst in the second reactor. The process achieved the relayed removal of sulfur‐containing compounds with different natures, providing itself with excellent HDS performance, and the hydroisomerization and aromatization of olefins in the second stage endowed the process with superior octane recovery ability and high product yield while remarkably reducing the olefin content of FCC gasoline. The process was also featured by low hydrogen consumption due to the low first‐stage olefin saturation and the balanced second‐stage hydrogenation and dehydrogenation. The two‐stage process developed here sheds a light for efficiently producing ultralow sulfur gasoline from the poor‐quality FCC gasoline of high olefin and sulfur contents. © 2012 American Institute of Chemical Engineers AIChE J, 59: 571–581, 2013 相似文献
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介绍了GARDES工艺流程及在中国石油宁夏石化公司1.2 Mt·a-1FCC汽油加氢装置的工业应用情况。通过标定数据可以看出,GARDES工艺完全可以满足中国石油宁夏石化公司现有原料情况下生产国Ⅴ标准汽油的质量要求,产品硫醇硫含量为(6~8)mg·kg-1,硫含量为(4~10)mg·kg-1,初馏点为(30~38)℃,干点小于200℃。GARDES配套催化剂GDS-20催化剂具有很好的硫醇转移活性与双烯饱和选择性;GDS-30催化剂具有很高的加氢脱硫活性与选择性;GDS-40催化剂具有很好的补充脱硫/脱硫醇活性,同时有部分芳构化活性。 相似文献
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FCC汽油脱硫降烯烃技术最新进展 总被引:6,自引:0,他引:6
介绍了国内外降低催化汽油中硫和烯烃的技术。降低FCC汽油烯烃和硫含量的主要技术有对FCC原料油进行加氢预处理、在FCC过程中使用具有降低汽油烯烃和硫含量的催化剂或助剂以及对 FCC 汽油进行脱硫和降烯烃精制处理三类。 相似文献
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为满足国IV清洁汽油标准对车用汽油中硫质量分数的要求,采用中国石油天然气股份有限公司石油化工研究院开发的催化裂化汽油选择性加氢脱硫技术将一套10万t/a柴油加氢降凝装置改造成32万t/a催化裂化汽油选择性加氢脱硫装置。为了提高催化裂化汽油加氢脱硫的选择性,在本次改造中增设了催化裂化汽油分馏塔、预加氢反应器、冷氢箱等设施。改造后加氢脱硫装置的工业标定结果显示,催化裂化汽油的硫质量分数平均从339μg/g降到了64μg/g,烯烃质量分数从52.1%降到了46.3%,研究法辛烷值从92.0降到了91.2,仅仅损失0.8个单位。分析了催化裂化汽油加氢脱硫装置技术改造的特点、效果和存在的问题,可为国内其他类似装置的改造和建设提供经验和参考。 相似文献