COMBUSTION OF SINGLE CHAR PARTICLES IN A TURBULENT FLUIDIZED-BED

被引：5

作者：

HALDER, PK

DATTA, A

CHATTOPADHYAY, R

机构：

[1] Department of Power Plant Engineering, Jadavpur University, Calcutta, 700091, 2nd Campus, Block-LB, Salt Lake

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1993年 / 71卷 / 01期

关键词：

COMBUSTION; TURBULENT FLUIDIZED BED; CHAR COMBUSTION; MASS TRANSFER; REACTION KINETICS;

D O I：

10.1002/cjce.5450710102

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The combustion of single bituminous char particles (4-12 mm diameter) was studied in a turbulent fluidized bed operated at 1098 K using air as the fluidising medium. Results indicated that particles burn with constant density following a shrinking sphere model. Burning rates are much higher than those observed in a bubbling fluidized bed. The rate of transfer of oxygen to the particle surface is also higher than that observed in bubbling beds. A model is proposed to calculate the Sherwood numbers of the burning carbon particles. Experimental values of the Sherwood numbers agree well with those predicted from the model.

引用

页码：3 / 9

页数：7

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