摘要
230℃和250℃温度下溶液中CH_4和CO_2之间的碳同位素交换反应的实验初步证实它们在水溶液中要比在于系统中容易进行同位素的交换。不同条件实验的比较表明溶液的酸度(或pH)、CH_4/CO_2(摩尔)和反应容器的大小等都会明显地影响同位素交换的速度。文中描述了实验方法,并从机制上初步讨论了实验结果。
A series of experiments of carbon isotopic exchange reaction between CH_4 and CO_2 in solutions at 230℃ and 250℃ preliminarily showed that the isotopic exchange between CH_4 and CO_2 would takes place more easily in an aqueous solution than in a dry system. A comparison of experiments carried out under the different conditions showed that acidity (or pH value) of solution, CH_4CO_2(mole) and size of reaction vessels all might influence the rate of isotopic exchange significantly. The experimental method was described and the results were discussed based on a possible mechanism suggested by Ohmoto (1986).
出处
《中国科学院研究生院学报》
CAS
CSCD
1992年第3期295-301,共7页
Journal of the Graduate School of the Chinese Academy of Sciences
关键词
热水溶液
CO2
同位素交换
碳
甲烷
hydrothermal solution, CH_4, CO_2, isotope exchange, reaction rate
