Study of the effect of fly ash on desulfurization by lime

被引：19

作者：

Shi, LM ^{[1
]}

Xu, XC ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Thermal Engn, Beijing 100084, Peoples R China

来源：

FUEL | 2001年 / 80卷 / 13期

关键词：

desulfurization; fly ash; iron oxides;

D O I：

10.1016/S0016-2361(01)00072-2

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Fly ash was used as an additive, and the effect of it on desulfurization by lime at 400-800 degreesC was studied experimentally. The conversion rate of fly ash-lime to calcium sulfate was found to be greater than that when using lime alone. One reason is that fly ash can act as a support medium for lime, thereby increasing its dispersion and extending its effective reaction surface area. Fly ash with a high iron or its oxides is likely to have some ability to absorb particles of lime on its surface. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1969 / 1973

页数：5

共 5 条

[1]

DAVIS WT, 1982, AIR POLLUT CONTROL A, V32, P395

[2] CATALYTIC FLUIDIZED-BED COMBUSTION - ENHANCEMENT OF SULFATION OF CALCIUM-OXIDE BY IRON-OXIDE [J].

DESAL, NJ ;

YANG, RT .

INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT, 1983, 22 (01) :119-123

[3]

LU L, 1998, PROPERTY UTILIZATION, P34

[4]

PANG YJ, 1992, J ENG THERMOPHYSICS, V13, P443

[5] ANALYSIS OF COAL FLY-ASH PROPERTIES OF IMPORTANCE TO SULFUR-DIOXIDE REACTIVITY POTENTIAL [J].

REED, GD ;

DAVIS, WT ;

PUDELEK, RE .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1984, 18 (07) :548-552

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