FF-14加氢预处理催化剂反应性能研究

论述了FF-14加氢预处理催化剂的脱硫、脱氮等活性,活性稳定性及对不同原料的适应性,并考察了工艺条件对FF-14加氢预处理催化剂反应性能的影响.     

FF-14催化剂在蜡油加氢装置上的应用

介绍了FF-14催化剂在安庆分公司蜡油加氢装置的应用情况，以及反应器催化剂装填、干燥和预硫化过程，分析了该催化剂对焦化蜡油、减压蜡油在开工初期、中期加氢处理过程中均具有良好的脱硫、脱氮性能。加氢处理蜡油作为FCC装置原料，确保了安庆分公司汽油质量升级目标的实现。     

FCC原料预处理催化剂FF-14的性能和应用

介绍了催化裂化原料加氢预处理催化剂FF-14的反应性能及工业应用.FF-14催化剂具有较好的加氢脱硫性能及原料适应性.工业应用结果表明,FF-14加氢催化剂脱硫活性高.     

FF-46再生催化剂在航煤加氢装置中的应用

FF-46是抚顺石油化工研究院开发的高活性加氢处理催化剂,该催化剂具有较高的脱硫、脱氮活性,工业运转后的催化剂经再生后同样具有较好的活性。主要介绍FF-46再生催化剂在扬子石化航煤加氢装置的使用情况。从催化剂选型、装填、活化、航煤初期生产情况、经济效益等几个方面做出了分析,证明FF-46再生催化剂可用于航煤加氢装置,在航煤产品质量达到国标要求的前提下,既使FF-46再生催化剂得到充分合理利用,又大幅度节省新催化剂采购费用,并拓宽了加氢裂化预处理催化剂再生后的使用范围。     

FF-24 FCC原料加氢预处理催化剂反应性能研究

选用VGO、CGO、DAO以及它们的混合油对FF-24催化剂的反应性能进行了考察。试验结果表明,在不同工艺条件下,加工不同性质的原料油,FF-24催化剂均有良好的加氢脱硫和加氢脱氮性能。说明FF-24催化剂具有优秀的原料适应性和活性稳定性。     

FF-24蜡油加氢处理催化剂的工业应用

为解决金陵分公司的汽油质量达到国Ⅲ的要求（汽油硫质量分数〈150×10^-6）、满足股份公司原油结构调整的要求,提高加工高硫原油的能力,金陵分公司新建一套260万t/a蜡油加氢处理装置,采用抚顺石油化工研究院开发的FF-24催化剂,进行了首次工业试用。通过介绍FF-24催化剂在260万t/a蜡油加氢处理装置的实际应用情况,对该催化剂的性能及使用效果进行分析。工业结果表明：FF-24催化剂具有优异的加氢脱硫、脱氮性能,对原料的适应性强,可满足VGO、CGO及其混合油生产低硫蜡油、满足催化装置生产国Ⅲ标准清洁汽油的需要。     

FF-24催化剂在镇海炼化蜡油加氢装置的工业应用

中国石化镇海炼化分公司为了提高180万t/a蜡油加氢装置运行效果(尤其是提高加氢脱氮率),于2012年换用抚顺石油化工研究院最新开发的蜡油加氢处理专用催化剂(FF-24)。要介绍了FF-24催化剂在中国石化镇海分公司180万t/a蜡油加氢装置的工业应用情况。工业应用结果表明:FF-24催化剂生产方案灵活,活性稳定性好,能满足生产优质低硫催化裂化原料及精制柴油的需要。     

FF-66催化剂在天津分公司的工业应用

FF-66催化剂是中国石化大连石油化工研究院开发的新型高活性低成本加氢裂化预精制催化剂,并于2016年在中国石化天津分公司1.2 Mt/a和1.8 Mt/a 2套加氢裂化装置上工业应用。该催化剂采用Mo-Ni为活性金属组分,以大孔氧化铝为载体,适度增强活性金属与载体的相互作用,物化性质更优。工业应用结果表明:FF-66催化剂活性优于旧催化剂,催化剂堆比下降20%以上,具有较高的脱硫、脱氮活性,对原料的适应性强,能够满足装置长周期运转的要求。     

FF-33催化剂在蜡油加氢处理装置的工业应用

某公司2.3Mt·a-1蜡油加氢处理装置第五周期采用大连石油化工研究院开发的FF-33主催化剂及FZC系列保护剂。介绍了催化剂FF-33初期标定结果及日常工业应用情况。结果表明:催化剂FF-33具有优异的加氢脱硫性能及良好的稳定性,能满足装置长周期运行要求。     

FF-66/FC-52组合催化剂在柴油加氢改质装置上的应用

分析了FF-66及FC-52型催化剂在某公司1.5 Mt/a柴油加氢改质装置上的应用情况。工业应用表明,在反应压力11.5 MPa、精制床层平均温度360℃、裂化床层平均温度369℃的条件下,产品柴油硫、氮质量含量均小于2.0μg/g,石脑油收率由14.5%增加至32.9%,产品柴油收率由50.9%下降至39.4%,装置柴汽比由3.22下降至1.20。FF-66、FC-52催化剂具有优异的加氢脱硫、脱氮活性和较高的石脑油产品选择性。该催化剂级配体系的成功应用,可以为同类装置制定油品质量升级及降低柴汽比方案提供一定的借鉴意义。     

Preparation of bifunctonal catallysts

Catalyzed reactions are usually a combination of various reaction pathways that require Catalysts to possess more than one chemical function. These reaction types and Catalyst functions are reviewed and bifunctionality of Catalysts is exemplified in the ensemble control effect for oxidation of carbons to CO/CO₂, double redox oxide Catalysts for partial oxidation of methane, base-hydrogenation Catalysts for methanol and higher alcohol synthesis as well as the water gas shift reaction, hydrogenation-CO insertion Catalysts for higher alcohol synthesis, and acid- hydrogenation Catalysts for the synthesis of ethers.     

低温水煤气变换催化剂的研究进展

低温水煤气变换催化剂是近年来催化剂领域研究的一个热点问题。在简述国内外水煤气变换催化剂研究的基础上,侧重介绍了负载金超微粒子催化剂的发展,对其催化机理、制备方法及载体的选用做了详细介绍,并就我国低温水煤气变换催化剂的研发提出了一些个人见解。     

甲烷部分氧化制合成气镍基催化剂的研究进展

镍基催化剂是甲烷部分氧化制合成气研究最多、最有前途的催化剂.相对其他催化剂它具有较好的抗积碳性、稳定性且价格低廉.如何提高甲烷在部分氧化反应中的转化率是当前备受关注的重要研究课题.从镍基催化剂的载体、助剂、制备方法等方面的研究进行了综述.     

Vergleich der Verteilungskurven der Katalysatorkorngrößen bei der Hydrierung von Fetten

Comparison of the Distribution Curves of the Particle Sizes of Catalysts in the Hydrogenation of Fats In the present paper the particle sizes of 14 hydrogenation catalysts and 2 kinds of commercial kieselguhr were studied using a laser analyzer. Assuming a log-normal distribution the distribution curves for the particle sizes were treated by the least-squares method. From the μ and σ parameters obtained the different characteristics of the catalysts were discussed.     

Syndiospecific Living Catalysts for Propylene Polymerization: Effect of Fluorination on Activity,Stereoselectivity, and Termination

The polymerization of propylene using a variety of fluorinated bis(phenoxyimine)titanium complexes is reported. The synthesis of ten complexes containing varying fluorinated N-aryl substituents is described. X-ray structural and solution NMR data indicate that these complexes are C₂-symmetric in the solid state, although in some cases C₁-symmetric isomers are observed in solution. When activated with methylalumoxane, all complexes formed syndiotactic polypropylene. Catalysts with ortho-fluorine substituents formed polymers with very narrow molecular weight distributions, indicative of a living polymerization. Catalysts with fluorine in at least the ortho and para positions exhibited the highest syndio-specificities. Catalysts with meta- or para-fluorine-containing substituents were more active for propylene polymerization than the corresponding non-fluorinated catalyst.     

加氢精制催化剂的研究现状

近年来,国内外环保法规日益严格,对燃料柴油的硫含量要求越来越高,全球多个国家和地区陆续要求使用硫含量低于10 mg/kg的柴油或无硫柴油。与此同时,国内外对加氢精制催化剂的研究日益成熟,已开发出多种可以生产超低硫柴油的精制催化剂。     

Recent Progress in Chiral Brønsted Acid Catalysis

Hydrogen bond catalysis and Brønsted acid catalysis are rapidly growing areas in organocatalysis. A number of chiral acid catalysts has been developed recently. Recent progress in the chiral Brønsted acid catalysis has been reviewed with a focus being placed on thiourea, TADDOL, and phosphoric acids. 1 Introduction 2 Hydrogen Bond Catalysis 2.1 Monofunctional Thiourea Catalysts 2.2 Bifunctional Thiourea Catalysts 2.3 TADDOL Derivatives 2.4 BINOL Derivatives 3 Brønsted Acid Catalysis 3.1 Ammonium Salts 3.2 Phosphoric Acids 4 Conclusion     

轻油水蒸气转化制城市煤气催化剂研究

综述了轻油水蒸气转化制城市煤气镍系催化剂的研究进展 ,讨论了催化作用机理、催化剂构成及失活 ,分析了加入碱土金属氧化物、过渡金属氧化物和稀土氧化物的助催化作用     

Studying the thermal conversion of acetone lignin in supercritical butanol in the presence of NiCuMo/SiO<Subscript>2</Subscript> catalysts

Existing and emerging technologies for the chemical processing of wood are mainly aimed at transforming its cellulose component into target products. In these processes, lignin is produced on a large scale as a waste product, but there are no advanced ways of processing it. This work investigates the effect NiCuМо/SiO₂ catalysts have on the thermal transformation of acetone lignin in supercritical butanol at temperatures of 280, 300, and 350°C. The resulting liquid products are studied via gas–liquid chromatography mass spectrometry, and 13С NMR spectroscopy. It is found that butanol undergoes almost no thermochemical conversions at temperatures below 300°C. Catalysts raise its level of conversion to 36–40 wt %. Under the effect of NiCuМо/SiO₂ catalysts, the yield of hexane-soluble products of acetone lignin thermal conversion at 300°C increases by a factor of 2.4, while the yield of solid residue falls by approximately a factor of 3.3. Catalysts reduce the relative content of methoxyphenols in hexane-soluble products: the content of syringol in particular falls by a factor of 14. According to ¹³С NMR spectroscopy, the catalytic transformation of acetone lignin to liquid acetone-soluble products is accompanied by the breaking of β–О–4 chemical bonds between the structural fragments of lignin and a reduction in the content of methoxyl groups, primarily in the syringyl structural units of the resulting products.     

Selective hydrogenation of sunflower oil over Ni catalysts

This work focuses on the influence of the support and the preparation method on the activity and selectivity of nickel catalysts in the hydrogenation of sunflower oil. Catalysts were prepared over silica and alumina supports following the incipient wetness impregnation and deposition-precipitation techniques. The activation process was followed by temperature-programmed reduction (TPR). Precipitation-deposition method allowed a stronger metal-support interaction than incipient wetness impregnation. A precipitation-deposition time of 14 h (which allowed a Ni loading of about 20wt%) was deemed as the most adequate from the standpoint of high specific surface area and strong Ni-support interaction. The selectivity to oleic acid was not affected by the preparation method, but it was significantly influenced by the type of support. In this regard, the catalysts prepared on silica are more active and produce less saturated fatty acids.