CONVERSION OF RICE HUSK INTO AMORPHOUS SILICA AND COMBUSTIBLE GAS

被引：45

作者：

CHAKRAVERTY, A

KALEEMULLAH, S

机构：

[1] Post Harvest Technology Centre, Indian Institute of Technology, Kharagpur

来源：

ENERGY CONVERSION AND MANAGEMENT | 1991年 / 32卷 / 06期

关键词：

RICE HUSK; AMORPHOUS SILICA; COMBUSTIBLE GAS;

D O I：

10.1016/0196-8904(91)90116-Z

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Results of the studies on thermogravimetric analysis (TGA) of raw and 1(N) HCl acid treated rice husk (in still air) reveal that its thermal degradation takes place in three main stages of mass loss, namely (i) drying, (ii) devolatilization and (iii) slow oxidation of fixed carbon. Hydrochloric acid leaching of husk at 75-degrees-C for 1 h prior to combustion is necessary for production of amorphous silica of complete white colour. For production of low calorie-combustible gas along with amorphous silica from the rice husks containing 5.5-7% (wb) moisture, a furnace set temperature of 450-degrees-C appears to be optimal.

引用

页码：565 / 570

页数：6