SOLUBILITY OF OXYGEN IN BRINES FROM 0-DEGREES-C TO 300-DEGREES-C
SOLUBILITY OF OXYGEN IN BRINES FROM 0-DEGREES-C TO 300-DEGREES-C
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DOI：
10.1021/i260074a018
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发表时间：
1980-01-01
期刊：
影响因子：
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通讯作者：
CRAMER, SD
中科院分区：
文献类型：
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作者：
CRAMER, SD
氧在水、氯化钠卤水和加利福尼亚州帝国谷典型的两种地热卤水中的溶解度是在0到300摄氏度的温度和溶解盐中卤水浓度高达5.69米的情况下测定的。测量是在高压搅拌高压罐中用抽气技术进行的。用亨利定律常数k表示的溶解度，用经验公式k=a0+a，/+a2/2+a3/3+a4/t4来描述，其标准偏差小于或等于6%，其中f是以K表示的绝对温度，系数a0到a4取决于盐水中溶解盐的浓度。盐析系数在0~300℃范围内变化2倍，最小温度为155℃。温度对两种地热卤水中溶解度的影响不同于中、高温范围内的氯化钠卤水。
The solubility of oxygen in water, in sodium chloride brines, and in two geothermal brines typical of the Imperial Valley, California, was determined for temperatures from 0 to 300 C and for brine concentrations up to 5.69 m in dissolved salts. Measurements were made in a high-pressure, stirred autoclave by the technique of gas extraction. The solubility, expressed in terms of the Henry’s law constant k, was described with a standard deviation of 6% or less by the empirical equation, In k= a0+ a,/+ a2/2+ a3/3+ a4/T4, where f is the absolute temperature in K and the coefficients a0 through a4 depend on the concentration of dissolved salts in the brine. A minimum in the solubility occurred in the temperature range 60 to 100 C. The salting-out coefficient for sodium chloride brines varied by a factor of 2 over the temperature range 0 to 300 C with a minimum at 155 C. The effect of temperature on solubility in the two geothermal brines was different from that in the sodium chloride brines in the mid-and high-temperature ranges.