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重瓦斯油
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  heavy gas oil
     A composite catalyst has been commercially used for the hydrocracking of Daqing heavy gas oil containing 50% of coking gas oil.
     本文对含焦化蜡油(50%)的大庆重瓦斯油在工业复合催化剂上加氢裂化的反应机理进行了研究。
短句来源
  “重瓦斯油”译为未确定词的双语例句
     1~H-NMR Determination of Gas Oil Composition at Control Points of the Extraction Process
     核磁共振氢谱分析重瓦斯油中芳烃抽提流程各控制点的组分
短句来源
     INVESTIGATION OF PHYSIOCHEMICAL PROPERTIES OF DIFFERENT BOILING FRACTIONS
     重瓦斯油及其窄馏分加氢反应性能考察
短句来源
     Characterization of NiMo Supported Hydrotreating Catalysts of Athabasca Bitumen Derived HGO
     重瓦斯油加氢精制镍钼负载型催化剂的表征研究
  相似匹配句对
     CHAPTER 5 MARINE SEDIMENTATION Section 4 Heavy Mineral
     矿物
短句来源
     making full use of conditions and connecting across;
     条件。
短句来源
     INVESTIGATION OF PHYSIOCHEMICAL PROPERTIES OF DIFFERENT BOILING FRACTIONS
     瓦斯油及其窄馏分加氢反应性能考察
短句来源
     Characterization of NiMo Supported Hydrotreating Catalysts of Athabasca Bitumen Derived HGO
     瓦斯油加氢精制镍钼负载型催化剂的表征研究
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  heavy gas oil
The PAPAR properties enhancing the oxidation resistance of petroleum luminophores produced from catalytically cracked heavy gas oil and heavy pyrolysis tar were studied.
      
The same chips, when transported in a heavy gas oil, take up as much as 50% oil by weight and result in a fuel that is >amp;gt;30% oil on mass basis and is about two-thirds oil on a thermal basis.
      
In this study, spent FCC catalysts were prepared by cracking sour imported heavy gas oil (SIHGO) in a microactivity test unit.
      
TPO spectra of spent equilibrium catalysts from cracking of sour imported heavy gas oil (SIHGO) were deconvoluted into four peaks (Peak K, L, M and N).
      
Improved HDN and HDS conversion of heavy gas oil was obtained for the catalyst prepared with EDTA.
      
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A composite catalyst has been commercially used for the hydrocracking of Daqing heavy gas oil containing 50% of coking gas oil.The reaction mecha- nism on this composite catalyst has been studied,including: (1)Hydrocracking activities of composite catalyst of different blending ratios between catalyst 3762 and catalyst 12-46 were tested with a 100 ml hydrocra- cking reactor system.It was found that an optimum blending ratio exists, under which both the quality and the yield of the desired products are better...

A composite catalyst has been commercially used for the hydrocracking of Daqing heavy gas oil containing 50% of coking gas oil.The reaction mecha- nism on this composite catalyst has been studied,including: (1)Hydrocracking activities of composite catalyst of different blending ratios between catalyst 3762 and catalyst 12-46 were tested with a 100 ml hydrocra- cking reactor system.It was found that an optimum blending ratio exists, under which both the quality and the yield of the desired products are better than those obtained with each individual catalyst. (2)The apparent kinetics of hydrocracking reaction over the composite catalyst was studied.The rate constant and activation energy thus obtained are consistent with those in literatures. (3)Based on the experimental results and Lin's concept of the existence of both strong and weak active sites on hydrogenation catalyst,it is suggested that:(Ⅰ)The strong and weak active sites on catalyst 3762 are in the oppo- site to those on catalyst 12-46;(Ⅱ)The intermediate isomers formed on cata- lyst 12-46 are unstable and are easily adsorbed and cracked on catalyst 3762; and(Ⅲ)The active sites on the two catalyst components act separately and relate to each other by intermediates. (4)The reaction mechanism of coking gas oil over the composite hydrocra- cking catalyt was proposed and was demonstrated with reactions of the para- ffins and aromatics in coking gas oil.The existence of the optimum blending ratio of the composite catalyst as well as many phenomena occured in the com- mercial hydrocracking unit is explained.

本文对含焦化蜡油(50%)的大庆重瓦斯油在工业复合催化剂上加氢裂化的反应机理进行了研究。在100ml 加氢试验装置上试验了不同混合比的复合催化剂的加氢裂化活性,发现12-46和3762两种催化剂混合使用时,两者之间有一个最佳配比,使产品质量与产率均优于单一催化剂,并研究了前述焦化蜡油在复合催化剂上加氢裂化反应的表观动力学,求得的速率常数和活化能与文献值一致。应用林励吾提出的在加氢催化剂上可以同时存在强弱不同的两种活性中心的观点,我们提出;(1)在3762催化剂上的强活性中心和弱活性中心与在12-46催化剂上相反;(2)在12-46催化剂上生成的中间产物——异构化合物很不稳定,易为3762催化剂所吸附和裂化;(3)复合催化剂中两种催化剂上的活性中心在反应过程中各自独立起作用,并通过中间产物联系在一起.应用此三点假设,提出了焦化蜡油在复合催化剂上的反应机理,用焦化蜡油中的烷烃和芳烃为代表说明了其反应历程。同时还解释了复合催化剂存在最佳配比的原因,也解释了在生产过程中出现的许多现象.

The slow diffusivity of large molecules into the micropores results in shape selectivity in the conversion of mixed feeds. The metals deposit on the zeolite, as the hydrogenation components further reduce this diffusivity through pore filling and pore mouth blocking, leading to ineffective catalysts for extinction hydrocracking. By using active metals at low loadings, these adverse effects can be minimized. To demonstrate this principle, experimental catalysts were compared. Unlike NiW/REX (REX=rare earth exchanged...

The slow diffusivity of large molecules into the micropores results in shape selectivity in the conversion of mixed feeds. The metals deposit on the zeolite, as the hydrogenation components further reduce this diffusivity through pore filling and pore mouth blocking, leading to ineffective catalysts for extinction hydrocracking. By using active metals at low loadings, these adverse effects can be minimized. To demonstrate this principle, experimental catalysts were compared. Unlike NiW/REX (REX=rare earth exchanged X-type zeolite), the experimental catalysts Pt and Pd on REX at 0.5 wt% levels were effective for the extinction hydrocracking of heavy gas oil blends. There was no heavy-end buildup in the recycle feed. The catalysts were active, low in aging rate, and high in selectivity for naphthas.

在混合进料转化中,大分子进入沸石微孔的缓慢扩散能力造成了择形性。沉积在沸石上作为加氢组分的金属,由于填入孔中和堵塞孔口而进一步降低了扩散率,从而使全循环加氢裂化催化剂失效。使用低负载的活性金属可减少这一有害作用。为证明这一理论,比较了试验用的催化剂。与NiW/REX(REX=稀土交换X型沸石)不同,在REX上负载0.5m%Pt或Pd的试验催化剂对重瓦斯油的全循环加氢裂化是有效的。循环进料中无重尾油积累。该催化剂活性高,老化速度慢,对石脑油的选择性高。

The physiochemical properties of different boiling fractions derived from Athabasca bitumen heavy gas oil were investigated and tested in high-pressure microhydrotreator over a commercial Ni-Mo/Al\-2O\-3 catalyst. The results showed that the amounts of sulfur, total nitrogen, basic nitrogen and non-basic nitrogen increased with the fraction boiling ranges. The reaction mechanisms of these distillates and narrow cuts were studied under different conditions. As the boiling range increased, the conversion rates...

The physiochemical properties of different boiling fractions derived from Athabasca bitumen heavy gas oil were investigated and tested in high-pressure microhydrotreator over a commercial Ni-Mo/Al\-2O\-3 catalyst. The results showed that the amounts of sulfur, total nitrogen, basic nitrogen and non-basic nitrogen increased with the fraction boiling ranges. The reaction mechanisms of these distillates and narrow cuts were studied under different conditions. As the boiling range increased, the conversion rates of total sulfur, total nitrogen, basic and non-basic nitrogen decreased, which shows a relationship between the amount of non-basic nitrogen and the reactivity of reactant. The removal of sulfur compounds was comparatively easier than that of nitrogen compounds, and the removal of non-basic compounds was the most difficult.

对Athabasca油砂沥青重瓦斯油以及不同馏程范围的窄馏分的物化性质进行了考察。结果显示 ,随着馏分沸程的增加 ,硫、氮等杂原子含量以及碱性氮和非碱性氮含量的增加。各种不同馏程范围馏分以及窄馏分的加氢精制反应性能表明 ,馏分中的氮化物含量 ,尤其是非碱性氮化物的含量 ,与其脱氮反应性能有密切关系。随着馏分终馏点的增加或者随着窄馏分馏程的变重 ,加氢脱硫和加氢脱氮转化率以及碱性氮和非碱性氮转化率均有所降低 ,其中非碱性氮的转化率下降幅度较大。由窄馏分的加氢反应性能考察可知 ,各类化合物的易脱除顺序为 :含硫化合物 ,碱性氮化物 ,非碱性氮化物

 
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