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在许多科学研究和工业生产中,需要严格控制各种气体中某些杂质的含量,其中较为重要的有O_2、H_2O、CO_2、不饱和烃及含硫化合物等。通常,采用某些催化剂或吸附剂来纯化气体,例如采用含Cu、Ni、Pt、Pd、Ti等金属的制品或某些型号的分子筛,如105等。但这些产品,有的使用温度较高,有的纯化效果不佳,有的价钱昂贵或不能再生使用,适用范围较窄。 AgNaX型分子筛是一种含银的特殊分子筛。利用分子筛的特性,可以以吸附的方式,除去上述杂质;利用高分散金属银的作用,可以借化学吸附的机理,将单独存在的氧或氢除去。AgNaX型分子筛既可适用于含氢的各类气体,又可适用于不含氢的各类气体。而且,它的使用温度范围较大,在-78℃至+150℃范围内,脱氧效果都很好,一般可低于1ppm;使用工艺简单,操作方便。
In many scientific research and industrial production, we need to strictly control the content of some impurities in various gases, of which the most important are O 2, H 2 O, CO 2, unsaturated hydrocarbons and sulfur compounds. Typically, some catalysts or adsorbents are used to purify gases, such as those made from metals such as Cu, Ni, Pt, Pd, Ti or some types of molecular sieves such as 105 and the like. However, these products, some use the higher temperatures, and some poor purification, and some expensive or not renewable use, the scope of application is relatively narrow. AgNaX-type molecular sieve is a silver-containing special molecular sieve. The use of molecular sieve characteristics, can be adsorbed to remove the above impurities; the role of highly dispersed metallic silver, by chemical adsorption mechanism, the presence of oxygen or hydrogen alone removed. AgNaX-type molecular sieve can be applied to all types of hydrogen-containing gases, but also applicable to all types of gases without hydrogen. Moreover, its use of a larger temperature range, in the range of -78 ℃ to +150 ℃, the deoxy effect is very good, generally less than 1ppm; the use of simple, easy to operate.