研究论文
喻本德,李金龙,张远航,唐孝炎.用参数方程的方法计算氟氯碳化合物的臭氧消耗潜势[J].环境科学学报,1995,15(2):129-134
用参数方程的方法计算氟氯碳化合物的臭氧消耗潜势
- CALCULATION OF OZONE DEPLETION POTENTIAL OF HALOCARBONS USING PARAMETRIC EQUATIONS
- 摘要:在研究同类氟氯碳化合物臭氧消耗潜势(ODP)之间的差异,探讨ODP与有关参数必然的内在联系的基础上,建立起两类求算HCFCs、CFCs的ODP的参数方程。一类是以大气寿命τ为参变量的计算ODP的参数方程,与之相应,发展了一种仅含氟氯碳化合物分解反应的简化化学反应机理,以准确、快速的求算氟氯碳化合物的τ,所计算的τ值与文献值相符,在参变量的有效范围内,上式计算的ODP与模拟计算值有很好的吻合;另一类是以分解的反应速度常数为参变量求算HCFCs的ODP的参数方程,计算结果表明,与模拟值相比,当用该方程算得的ODP计算值小于0.05时,准确度较高,大于此值则误差较大,但仍可较准确的表出所计算物质ODP值的相对大小,数值本身仍有较好的参考价值。
- Abstract:Two kinds of parametric equatoins have been formulated to calculate ozone depletionpotential(ODP)of hydrochlorofluorocarbaons and chlorofluorocarbons based on a study onthe difference in the ODP of same kind of halocarbons and the relation between ODP andrelevant parameters. The parameter used in one of the equations is atmospheric lifetime(τ).Meanwhile, a simplified reaction mechanism consisting of only decomposition reactions ofhalocarbon studied has been developed to calculated τ quickly and accurately. The parame-ters used in another equation are rate constants of the decomposition reactions. ODP can beacquired directly from these equations in the effective range of parameters which are consis-tent with those reported.
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