RADIATION-INDUCED EFFECTS ON ALTERNATIVE FUELS .2. X-RAY-IRRADIATION OF ASPHALTENES FROM COAL

被引：9

作者：

LANCAS, FM

CARRILHO, E

DIBO, DMP

机构：

[1] Instituto de Fisica e Química de São Carlos, Universidade de São Paulo, São Carlos, 13560, SP

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1992年 / 158卷 / 02期

关键词：

D O I：

10.1007/BF02047115

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Asphaltenes obtained from high-ash coal by precipitation with n-hexane were X-ray irradiated st different doses. The gases evolved from the irradiated samples consist mainly of ethane and propane. The condensed matter obtained upon irradiation was fractionated by Preparative Liquid Chromatography (PLC) into 8 discrete fractions and its relative distribution was studied as a function of the irradiation doses. Based on the product distribution as well as the analysis of the initial sample using PLC, GPC and IV and NMR spectroscopies, a mechanism is proposed to explain the X-ray effects on the irradiation of asphaltenes.

引用

页码：283 / 292

页数：10

共 18 条

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