THERMOGRAVIMETRIC STUDY OF THE CHARACTERISTICS AND REACTIVITY OF CAO FORMED IN THE PRESENCE OF SMALL AMOUNTS OF SO2

被引：11
作者：
DAVINI, P
机构：
[1] Chemical Engineering Department, Pisa University, 56126 Pisa
来源：
FUEL | 1995年 / 74卷 / 07期
关键词：
CALCIUM OXIDE; REACTIVITY; FLUE GAS DESULFURIZATION;
D O I：
10.1016/0016-2361(95)00046-8
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：
The porosity, BET surface area and desulfurization reactivity of samples of CaO obtained by calcination of Ca(OH)(2) at 1000 degrees C in a gaseous atmosphere containing different amounts of SO2 are reported. Small amounts of SO2 (similar to 50 ppm) increase the surface area and porosity of the CaO relative to those obtained without SO2. The desulfurization reactivity of CaO produced in SO2-containing gas is also greater: higher conversion to CaSO4 is obtained with this CaO in simulated fuel gas desulfurization. This behaviour may be related to the change in structural characteristics produced by small quantities of CaSO4 formed during calcination which reduce the overall sintering of the calcium oxide.
引用
收藏
页码：995 / 998
页数：4
相关论文
共 19 条
  • [1] ATTING RC, 1970, APDT1176 US EPA AEER, pE3
  • [2] BEITTEL R, 1985, 1ST P JOINT S DRY SO
  • [3] EFFECT OF SPECIFIC SURFACE-AREA ON THE REACTIVITY OF CAO WITH SO2
    BORGWARDT, RH
    BRUCE, KR
    [J]. AICHE JOURNAL, 1986, 32 (02) : 239 - 246
  • [4] BORGWARDT RH, 1989, CHEM ENG SCI, V44, P53
  • [5] METHOD FOR VARIATION OF GRAIN-SIZE IN STUDIES OF GAS SOLID REACTIONS INVOLVING CAO
    BORGWARDT, RH
    ROACHE, NF
    BRUCE, KR
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1986, 25 (01): : 165 - 169
  • [6] BORTZ S, 1985, 1ST JOINT S DRY SO2
  • [7] BOTGWARDT RH, 1989, IND ENG CHEM RES, V28, P493
  • [8] AN INVESTIGATION OF THE INFLUENCE OF SODIUM-CHLORIDE ON THE DESULFURIZATION PROPERTIES OF LIMESTONE
    DAVINI, P
    DEMICHELE, G
    GHETTI, P
    [J]. FUEL, 1992, 71 (07) : 831 - 834
  • [9] REACTION BETWEEN CALCIUM-BASED SORBENTS AND SULFUR-DIOXIDE - A THERMOGRAVIMETRIC INVESTIGATION
    DAVINI, P
    DEMICHELE, G
    BERTACCHI, S
    [J]. FUEL, 1991, 70 (02) : 201 - 204
  • [10] GARTELL FS, 1973, EPA650273019 REP
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