STUDY OF A NEW ZEALAND OIL-SHALE BY DIFFERENTIAL THERMAL-ANALYSIS

被引：12

作者：

ROGERS, DE

BIBBY, DM

机构：

[1] Chemistry Division, Department of Scientific and Industrial Research, Petone, Private Bag

来源：

THERMOCHIMICA ACTA | 1979年 / 30卷 / 1-2期

关键词：

D O I：

10.1016/0040-6031(79)85065-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The heats of combustion of 95 samples of oil shale from the Nevis Valley have been determined from DTA peak areas obtained by combustion in 1.5 atm oxygen. The heats of combustion of the oil shale ranged from 0.2 to 8.5 MJ kg-1, with an average of 2.6 MJ kg-1, while that of the kerogen was calculated to be 34.2 MJ kg-1. Up to four peaks were obtained in the DTA combustion curve, suggesting that different parts of the kerogen molecule were being oxidised at different temperatures. In nitrogen, DTA endotherms were observed due to decarbonation of siderite (ca. 455°C), and dehydroxylation of kaolinite (ca. 570°C) and chlorite (ca. 760°C), and an exotherm due to formation of mullite (ca. 980°C). © 1979.

引用

页码：303 / 310

页数：8