ADSORPTION OF MERCURIC-CHLORIDE VAPORS FROM INCINERATOR FLUE-GASES ON CALCIUM HYDROXIDE PARTICLES

被引：37

作者：

LANCIA, A ^{[1
]}

MUSMARRA, D ^{[1
]}

PEPE, F ^{[1
]}

VOLPICELLI, G ^{[1
]}

机构：

[1] CNR,IST RIC COMBUST,NAPLES,ITALY

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 1993年 / 93卷 / 1-6期

关键词：

MERCURIC CHLORIDE; ADSORPTION; MUNICIPAL SOLID WASTES; INCINERATION;

D O I：

10.1080/00102209308935293

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The adsorption of mercuric chloride vapours on a fixed bed of calcium hydroxide fine particles has been experimentally studied. The study has been conducted at laboratory scale using simulated flue gases, constituted of mercuric chloride vapours in nitrogen, which have been in contact with a Ca(OH)2 fixed bed. The effect of the bed temperature, the inlet HgCl2 concentration, and the relative gas-solid velocity on the HgCl2 removal efficiency has been studied. The experimental results indicated that high removal efficiencies of up to 95% can be obtained. The bed temperature has been found to be the most relevant parameter particularly as the experimental results show that the lower the bed temperature, the higher the removal efficiency. Moreover, the removal efficiency increases when the HgCl2 concentration in the inlet gas increases and when the relative gas-solid velocity decreases. A model based on a simplified expression of the Freundlich adsorption isotherm has been proposed, which is able to describe quite accurately the dependence of HgCl2 removal efficiency on the parameters investigated.

引用

页码：277 / 289

页数：13

共 10 条

[1] PRESERVATION OF DILUTE MERCURY SOLUTIONS [J].

FELDMAN, C .

ANALYTICAL CHEMISTRY, 1974, 46 (01) :99-102

[2]

FREUNDLICH A, 1926, CHEMISTRY

[3] CHEMICAL-REACTIONS OF MERCURY IN COMBUSTION FLUE-GASES [J].

HALL, B ;

SCHAGER, P ;

LINDQVIST, O .

WATER AIR AND SOIL POLLUTION, 1991, 56 :3-14

[4]

LAGO A, 1988, 1988 S CONTR INQ IND

[5]

MCCABE WL, 1985, UNITE OPERATIONS CHE

[6] ADSORPTION OF MERCURY-VAPOR ON PARTICLES [J].

OTANI, Y ;

KANAOKA, C ;

USUI, C ;

MATSUI, S ;

EMI, H .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1986, 20 (07) :735-738

[7]

ROBERTS RH, 1981, FOOD SAFETY, P148

[8]

STULL DR, 1972, NATL STAND REF DATA

[9]

WEAST RC, 1977, CRC HDB PHYSICS CHEM

[10]

1978, INF CHIM, V182, P227

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