废弃物制备钙基二氧化碳吸附剂的研究进展

Research Progress of Calcium Based Carbon Dioxide Adsorbent Preparation from Solid Waste

新世纪以来人类活动产生了极大的碳排放量和大量废弃物,还造成了严重的资源浪费,环境成为经济发展的代价。利用二氧化碳吸附剂减少二氧化碳排放,是目前工业最有效的手段。高温钙基二氧化碳吸附剂以其成本低、性能好受到了广泛应用。利用废弃物改性制备二氧化碳吸附剂达到以废治废是一种资源节约、环境友好的研究方向。从不同钙源和不同掺杂剂的方面分类介绍了目前国内外关于废弃物改性钙基二氧化碳吸附剂的研究,对于改性后的钙基吸附剂的碳酸化转化率、循环吸附性能、作用特点等方面进行了详细阐述。

Human activities have produced a great amount of carbon emissions and a large amount of wastes,causing serious waste of resources and making the environment an economic development cost.The use of carbon dioxide adsorbents to reduce emissions is currently the most effective means of industry.High-temperature calcium based carbon dioxide adsorbent with its low cost and good performance and widely used.The use of waste modified to prepare carbon dioxide adsorbent to achieve waste treatment waste is a new research direction,which is resource-saving and environmentally friendly.The research on the conversion of calcium-based carbon dioxide adsorbent at home and abroad was introduced from the aspects of different calcium sources and different dopants.Carbonation conversion rate,cyclic adsorption performance and characteristics of the modified CaO-based sorbents were described in detail.