芳烃

Pseudocumene, mesitylene, 1,2,3-trimethylbenzene and durene among theheavy aromatic hydrocarbon from catalytic reformation in oil refinery areimportant fine chemical materials, they have not only high additional value butalso particularly useful property, therefore, the exploiting and utilizing the sourceof the heavy aromatic hydrocarbon are of large commercial benefit and promisingapplication future.

炼油厂催化重整装置重芳烃中偏三甲苯、均三甲苯、连三甲苯、均四甲苯等都是精细化工的重要原料，不仅附加价值高，而且具有独特的优良性能。因此开发利用重芳烃资源具有较大的经济价值和广泛的应用前景。

With the seedlings of model plant Arabidopsis thaliana and the polycyclic aromatic hydrocarbon fluoranthene as test materials,this paper studied the physiological responses of plants to polycyclic aromatic hydrocarbons from the aspects of antioxidases and membrane protection system that are tightly related to abiotic stresses.

选用模式植物拟南芥为材料，以四环的多环芳烃荧蒽为研究对象，从植物对非生物胁迫响应紧密相关的抗氧化酶及膜保护系统的变化入手，研究了植物对多环芳烃胁迫的生理响应。

Fifty-seven kinds of polycyclic aromatic hydrocarbon were detected by qualitative method,and sixteen kinds of those were mensurated by quantitative method.The results suggested that the average concentration of chry was the highest,21.83 ng/m3;the average concentration of fluoranthene was the second highest, 21.14 ng/m3; the mass c...

并对16种多环芳烃定量测定，结果表明：以屈艹为最高，平均值为21.83ng/m3；荧蒽次之，平均值为21.14ng/m3；苯并芘的质量浓度为14.52ng/m3，不满足GB3095-96中的质量浓度限值。2001～2003年检测结果对比表明，部分监测点空气中多环芳烃的浓度有下降的趋势。

Associating with the increasing FPT, the content fluorene and alkaned fluorene is decreasing, while benzyl-fluorene is increasing.

试验物料热解焦油的芳烃中二环芳烃中萘和其甲基衍生物的含量是微量的，但萘的苯基衍生物比较高。

The PAHs in sediment core were mainly composed of phenanthrene and fluorene. The concentrations of phenanthrene and fluorene in sediment core were 236.1-417.9 ng/g and 91-130.8 ng/g,respectively. Both of them accounted for 47.2%-58.1% of the ∑PAH16 in sediments.

沉积物中多环芳烃的组成以3环的菲和芴为主，它们的含量分别为236.1～417.9 ng/g和91～130.8 ng/g，二者共占沉积物中多环芳烃总量（∑PAH16）的47.2%～58.1%。

The results show that calix[6] arene-bismetalloporphyrins possess much higher catalytic activity than the corresponding metalloporphyrin while displaying the sam eselectivity by giving rise to acetophenone as the ketonic component in excellent yield.

研究了杯[6]芳烃-双金属卟啉在氧化异丙苯中的催化行为，结果表明杯[6]芳烃-双金属卟啉比之相应的金属卟啉具有更高的催化活性，并表现同样的选择性，生成苯乙酮和醇组份。

The test results showed that this synthetic kerosene fraction was mainly composed of paraffinic hydrocarbons and monocyclic naphthenic hydrocarbons, besides, only a minor amount of single-ring aromatic hydrocarbons was found, two-ring or three-ring aromatic hydrocarbons were non-detectable.

结果表明，从国产煤F-T合成燃料中截取的煤油馏分主要由链烷烃和一环环烷烃组成，油样中只含有极少的单环芳烃，没有双环和三环芳烃存在。

Key Word petrochemical industry , refining-chemical integration ,olefine ,sythetic gas ,alkane activation ,separation ,reaction ,biochemlcal ,nanotechnology , informatiom technology

炼油厂的汽柴油规范将进一步强化，欧盟汽油含硫将从2000年150PPm减小到2005年50PPm、2011年10PPm，芳烃含量将从2000年42%减小到2005年35%，汽油中芳烃将寻求石油化工新用途。

The toxicity of selected compounds and their binary mixtures of sodium dodecyl sulfate with three substituted aromatic compounds to photobacterium phosphoreum was investigated, respectively.

研究阴离子表面活性剂十二烷基硫酸钠和苯酚、硝基苯、甲苯3种取代芳烃对发光菌的单一毒性，以及在等浓度配比条件下，SDS与这3种取代芳烃二元混合体系的联合毒性效应，并采用毒性单位、相加指数、相似性参数和泥合毒性指数进行毒性评价。

However, research on polycyclic aromatic hydrocarbons in the environmental medium within the industrial area has not been reported yet.

目前国内外对环境中的多环芳烃已开展了较多的研究，但有关工业区环境介质中的多环芳烃研究尚未见报道。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。