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温度计盛有戊烷或酒精。Thermometers are filled with pentane or alcohol.

可以用戊烷峰来计算其他峰的保留时间。Identification of retention time can be accurately obtained using a pentane peak as a standard.

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提出一种以凝析油戊烷为溶剂贮存天然气的方法。A method for storing natural gas with pentane from natural gas condensate as solvent was proposed in this papaer.

在连续性微反活性评价装置上,以正戊烷为原料,对空白载体和催化剂的活性进行了考察。The activities of pure supporter and catalysts were evaluated on micro reactor activity estimation apparatus by taking n pentane as the raw material.

为了生产用于分子筛脱蜡装置的正戊烷脱附剂,利用络合化学试剂对切割分离后的重整正戊烷油进行了脱烯烃精制实验。In order to produce n pentane desorbing agent for molecular sieve dewaxing unit, the refining tests for reformed n pentane oil were carried out by using complexing agents.

工业生产中常用苯、环己烷、正戊烷等作夹带剂进行恒沸精馏生产无水乙醇。Benzene, cyclohexane and normal pentane etc. are frequently used as entrainers in industrial production of anhydrous alcohol through constant boiling and fine distillation.

戊烷沥青质中以迫位缩合的芳香环系结构为主,胶质组分中渺位缩合与迫位缩合的芳香环系结构各占相当比例。The aromatic structure of pentane asphaltenes is mainly peri condensed, while for resins the proportion of cata condensed and peri condensed aromatic structures is comparable.

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研究发现,焦化蜡油中主要的富氮组分是较小分子的戊烷不溶物,或者是更小分子、极性较强的己烷不溶物。It is found that the major nitrogen sources in coker gas oils are associated with relatively small pentane insoluble species and an even smaller, highly polar, hexane insoluble species.

不同油源的胶质、戊烷沥青质在与芳香碳相连的正构烷基侧链的分布以及芳香环系的缩合程度方面表现出一些差别。Resins and pentane asphaltenes with different origins show some differences in the distribution of n alkyl chains linked to aromatic carbon and the condensation degree of aromatic rings.

采用正戊烷为溶剂,利用超临界溶剂抽提精密分离装置将沙特阿拉伯减压渣油抽提分离为16个窄馏份,对抽出油及减压渣油进行了较为全面的性质和组成分析。By SCFE unit using pentane as solvent, the Saudi Arabian vacuum residue was separated into 16 narrow fractions. The properties and composition of the narrow fractions and the VR were analyzed.