SURFACE-CHEMISTRY OF ACTIVATED CARBONS AND ITS RELEVANCE FOR EFFECTS OF RELATIVE-HUMIDITY ON ADSORPTION OF CHLORINATED ORGANIC VAPORS

被引：14

作者：

TSAI, WT ^{[1
]}

CHANG, CY ^{[1
]}

机构：

[1] NATL TAIWAN UNIV,GRAD INST ENVIRONM ENGN,71 CHOU SHAN RD,TAIPEI 106,TAIWAN

来源：

CHEMOSPHERE | 1994年 / 29卷 / 12期

关键词：

D O I：

10.1016/0045-6535(94)90053-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of relative humidity (RH) on the adsorption of methylene chloride (METH) and 1,1,1-trichloroethane (TCEA) on two commercial activated carbons, made from bituminous coal (carbon BPL) and coconut shell (carbon PCB), were studied. Three levels of RH were tested by tracking the breakthrough curves of each adsorbate eluted from a fixed-bed adsorption column. Adsorption capacities for these adsorbates were decreased with increase of RH. The magnitude of the effect of water vapor on adsorption is greater for carbon BPL and METH than for carbon PCB and TCEA. The results of the effect of water vapor on the adsorption capacity observed in this study were further examined based on the chemical characterization of activated carbons and the fundamental physical differences between the adsorbates.

引用

页码：2507 / 2515

页数：9

共 19 条

[1] TRACE-ELEMENT DISTRIBUTIONS OF A ANTIGRANULOCYTES ACTIVATED CARBON
ALBEN, KT
JACOBS, IS
[J]. CARBON, 1986, 24 (02) : 177 - 183
[2] [Anonymous], 1987, GAS SEPARATION ADSOR
[3] Bansal R.C., 1988, ACTIVE CARBON
[4] Boehm H. P., 1966, ADV CATALYSIS, VXVI
[5] DEAN JA, 1985, LANGES HDB CHEM
[6] GONG R, 1993, J AIR WASTE MANAGE, V43, P864
[7] MATTSON JS, 1971, ACTIVATED CARBON SUR
[8] CHARCOAL SORPTION STUDIES .2. THE SORPTION OF WATER BY HYDROGEN-TREATED CHARCOALS
MCDERMOT, HL
ARNELL, JC
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1954, 58 (06) : 492 - 498
[9] REVIEW OF INFLUENTIAL FACTORS AFFECTING THE PERFORMANCE OF ORGANIC VAPOR AIR-PURIFYING RESPIRATOR CARTRIDGES
MOYER, ES
[J]. AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL, 1983, 44 (01): : 46 - 51
[10] RESPIRATOR CARTRIDGE EFFICIENCY STUDIES .7. EFFECT OF RELATIVE HUMIDITY AND TEMPERATURE
NELSON, GO
CORREIA, AN
HARDER, CA
[J]. AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL, 1976, 37 (05): : 280 - 288

← 1 2 →