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aromatic content
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  芳烃含量
     In terms of aromatics with condensed nuclei, RFCC has the highest concentration and has a total aromatic concentration of 75.6-88.3%, followed by 51.7-69.4% of FCC and 23.4-31.2% of the delayed-coking respectively, while the visbreaking fraction has a tricyclic aromatic content of only 0.2-0.9%.
     稠环芳烃含量以重油催化的最高,总芳75.6-88.3%,依次是蜡油催化的51.7-69.4%、延迟焦化的23.4-31.2%,减粘裂化的三环芳烃含量仅0.2-0.9%。
短句来源
     Study on Reducing Aromatic Content of Solvent Oil 6~#
     降低6~#溶剂油中芳烃含量的研究
短句来源
     EFFECT OF AROMATIC CONTENT OF OIL ON RHEOLOGY OF 1,2-POLYBUTADIENE RUBBER
     油品芳烃含量对充油1,2-聚丁二烯橡胶流变性的影响
短句来源
     The experimental results showed that under the optimal reaction conditions(temperature 430℃, liquid hour space velocity 1h~-1, pressure 0.1MPa), the conversion of olefin, conversion of alkane, olefin content, aromatic content and iso-paraffin content were up to 97.17%, 67.91%, 3.28%, 74.09% and 20.59% respectively.
     研究结果表明,在反应温度430℃、反应压力0.1MPa、液时空速(LHSV)1h-1的条件下,液体产品中烯烃含量、芳烃含量及异构烷烃含量分别达到3.28%、74.09%和20.59%。
短句来源
     After treating by adsorbent D,the sulfur content of FCC naphtha reduced from 770μg/g to 244μg/g,aromatic content reduced,RON dropped only 0.2 unit and other indexes were basically the same.
     经吸附剂D处理后的精制油硫含量可由770μg/g降至244μg/g,辛烷值由89.6降至89.4,仅降低0.2个单位,芳烃含量有所下降,其它主要指标基本上没有变化。
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  “aromatic content”译为未确定词的双语例句
     The test result shows that FH-40A catalyst has excellent property of hydrodesulfurization,hydrodenitrogenation and aromatic saturation,and therefore hydrofined oil sulfur content <0.5 μg/g,nitrogen content<1 μg/g,bromine index<150 mg/100 g,aromatic content<5 v%,all of these could meet the quality specification of feed to Molex unit.
     试验结果标明:FH-40A催化剂具有优异的加氢脱硫、加氢脱氮和芳烃饱和性能,可以使精制油的硫质量分数<0.5μg/g,氮的质量分数<1μg/g,溴指数<150 mg/100 g,芳烃的体积分数<5%,满足分子筛脱蜡装置进料质量的要求。
短句来源
     When aromatic content was more than 6%,the tensile strength of SBS decreased and SBS was easy to turn yellow.
     当其芳烃质量分数大于6 %时 ,SBS的强度损失较大 ,也易变黄。
短句来源
     The results showed that the interfacial viscosity of oil-water increased while the mass fractions of Tween 40, Span 80 in oil phase or aromatic content of oil phase increased, and the interfacial viscosity of oil-water increased greatly while the critical micelle concentration(CMC) of Tween 40 and Span 80 lay within the range of their mass fraction changes.
     并且,当油相中Tween40、Span80的临界胶束(CMC)质量分数在其质量分数变化范围内时,油 水界面粘度有大幅度的增加。 Tween40铺展吸附于油 水界面,其油 水界面粘度较大。
短句来源
     3905 catalyst,characterized by high yield of light oils and excellent selectivity for ring breaking,can be used for producing naphtha with high potential aromatic content,tail oil with low BMCI value,and diesel fuel of high cetane number.
     3905的轻油产率高、裂环选择性好,可以得到芳烃潜含量高的重石脑油、BMCI值低的尾油和十六烷值较高的柴油;
短句来源
     Results showed that 136 aromatic components, belonging to 12 categories in these 3 cultivars were identified. The main aromatic components were 1-hexanol, (E)-2-hexenal, acetic acid,butyl ester, acetic acid,hexyl ester, etc. , representing 93.81% of the total aromatic content.
     结果表明,(1)3种早熟苹果含醇类等12类136种香气成分,其中1-己醇、(E)-2-己烯醛、乙酸丁酯、乙酸己酯等成分均在1%以上,总含量占测定芳香物质总量的93.81%,为参试苹果品种的主要香气成分;
短句来源
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  相似匹配句对
     Its content is: I.
     主要内容是:
短句来源
     The content of P. C.
     血清P.
短句来源
     THE DETERMINATION OF AROMATIC CONTENT IN BASE OIL
     基础油中芳烃含量的测定
短句来源
     The highest content of aromatic constituents was nerolidol .
     以橙花叔醇为毛蟹品种香的主体香气成分,毛蟹的品种香主呈清花香。
短句来源
     LUMINESCENCE OF AROMATIC MOLECULES
     芳香分子的发光
短句来源
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  aromatic content
As the polymer eroded, the aromatic content including some carbonyl was lost, but the remaining polymer was oxidized.
      
This overloading is attributable to the uptake of ammonia by the hydroxyoximes and can be expected to increase with increasing aromatic content of the diluent, as in the case of Escaid 100, as a result of decreased oxime aggregation.
      
Pyromellitic esters with enhanced aromatic content and a mixed structure considered as tribological fluids
      
The influence of C/E ratio or in otherwords, imide or aromatic content on the adhesive strength, thermal stability and glass transition temperature was more pronounced for aliphatic epoxy, i.e., EHTPB-based system.
      
Epoxy-imide resins from N-(4-carboxyphenyl)trimellitimide: effect of imide and aromatic content on adhesive and thermal properti
      
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Fifty-two hydrocarbons were found in the analysis of a fraction of Yu-Men gasoline normally boiling between 85° and 125℃. In this analysis, an analytical method for straightrun gasoline hydrocarbons composed of adsorption catalytical dehydrogenation and fractional distillation processes and Raman spectrometric examination was employed. The aromatic content of the fraction investigated was found to be 5.8% and consisting mainly of toluene. Cyclohexanes presented predominantly in naphthenes, in which 12.4%...

Fifty-two hydrocarbons were found in the analysis of a fraction of Yu-Men gasoline normally boiling between 85° and 125℃. In this analysis, an analytical method for straightrun gasoline hydrocarbons composed of adsorption catalytical dehydrogenation and fractional distillation processes and Raman spectrometric examination was employed. The aromatic content of the fraction investigated was found to be 5.8% and consisting mainly of toluene. Cyclohexanes presented predominantly in naphthenes, in which 12.4% of methylcyclohexane and 7.6% of 1,3-dimethylcyclohexane by weight of the fraction were found; cyclopentanes identified were composed principally of di- and trimethylcyclopentanes. The contents of n-paraffins and isoparaffins were found to be about the same, the most abundant paraffin found was n-heptane, which accounted for 11.4% by weight of the fraction, and followed by n-octane, 5.5%.

用分析直餾汽油單體烴的綜合分析法分析了玉門汽油85~125℃餾分。共發現有52個單體烴。其中芳烴含量為5.8%,主要為甲苯。環烷烴中以環己烷類佔優勢,對原料油計,甲基環己烷佔12.4%,1,3-二甲基環己烷佔7.6%;環戊烷以二甲基及三甲基環戊烷為主。烷烴中的正烷烴和異構烷烴含量很相近,其中正庚烷最多,佔原料油的11.4%,正辛烷佔5.5%。

The aromatization of a C_8-C_9 fraction (105—155℃)of Fischer-Tropsch naphtha over chromia-alumina catalyst at various temperatures and space velocities has been investigated. At 500℃ and LHSV 0.43, the once-through total conversion is 84%, and the yield of aromatics is about 60% (based on feed stock). Under these conditions, about 37% (based on feed stock) of xytene-ethylbenzene fraction is obtained, which consists mainly of ethylbenzene and o-xylene. On regeneration, over 93% of coke-deposition can be easily...

The aromatization of a C_8-C_9 fraction (105—155℃)of Fischer-Tropsch naphtha over chromia-alumina catalyst at various temperatures and space velocities has been investigated. At 500℃ and LHSV 0.43, the once-through total conversion is 84%, and the yield of aromatics is about 60% (based on feed stock). Under these conditions, about 37% (based on feed stock) of xytene-ethylbenzene fraction is obtained, which consists mainly of ethylbenzene and o-xylene. On regeneration, over 93% of coke-deposition can be easily burned off, but a small amount of coke remains unburned, and shows no significant effect on the activity of catalyst. The C_8-C_9 fraction used contains 13% of olefins. Removal of the olefins from it decreases the coke formation rate, and increases the aromatic content in the liquid product.

本文作者在不同溫度、不同空間速度的條件下,進行了合成油八碳寬餾分在鉻催化劑(K_2O-Cr_2O_3-Al_2O_3)上的轉化,探索了生成各種二甲苯異構物及乙基苯的較好條件。實驗證明,這種由中國科學院石油研究所用於合成油七碳餾分芳烴化的鉻催化劑對八碳寬餾分芳烴化反應的活性是很高的。

A new hydroisomerization process in which a new type of dual function catalysts is used for the production of jet fuel from paraffinic middle distillates has been suggested. The new catalyst which is composed of nonplatinum metal components and an acidic carrier possesses high activity, good selectivity, and good durability. In the presence of this catalyst and under medium hydrogen pressure, hydrogen consumed is 0.3—0.5% and the liquid product yield is 95—97%.A 67% yield of jet fuel can be obtained from the...

A new hydroisomerization process in which a new type of dual function catalysts is used for the production of jet fuel from paraffinic middle distillates has been suggested. The new catalyst which is composed of nonplatinum metal components and an acidic carrier possesses high activity, good selectivity, and good durability. In the presence of this catalyst and under medium hydrogen pressure, hydrogen consumed is 0.3—0.5% and the liquid product yield is 95—97%.A 67% yield of jet fuel can be obtained from the hydroisomerization of a middle cut feedstock in single-pass over the new catalyst at 420℃, hydrogen pressure 40 atm., space velocity 0.70, and volume ratio of hydrogen to oil 1000:1. Its chief physicochemical properties are as follows: specific gravity 0.783 (d_4~(20)), freezing point —64℃, heat of combustion (net) 10320 kcal/kg, and an aromatic content about 16%.

发展了一种对石蜡基原油中油馏分进行深度加工的方法——临氢催化异构化.本方法采用含有非铂系金属组分及酸性组分的双重性催化剂,在中压下使原料油加工改质.过程的氢气消耗量较低(0.3—0.5%),液体产品收率较高,达95—97%. 以石蜡基原油的中油馏分为原料,在反应压力为40大气压、温度420℃和体积空速0.7小时~(-1)的条件下,原料油一次通过可获得航空煤油67%;其主要物理化学指标为:比重0.783,冰点—64℃,发热量为10320千卡/公斤.

 
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