热煤气中碱金属蒸气的脱除

摘要

Seven adsorbents were screened for removal of alkali metal vapor from hot coal gas. It is found that five adsorbents present higher adsorption efficiency and activated almmina shows the highest adsorption capacity. The adsorption process of activated alumina is a physical process in experimental condition.%为了清除煤燃烧或气化产生的热气体中的碱金属蒸气，筛选了7种吸附剂，发现5种吸附剂的吸附效率都能达到80％以上，其中活性氧化铝的碱容量最高，对活性氧化铝吸附机理也进行了初步探讨。