生物质竹屑活性炭磺酸官能化固体酸催化剂的制备

Preparation of Biomass Bamboo Activated Char Sulfonic Acid Functionalized Solid Acid Catalyst

以竹屑为原料,经高温炭化、微波磺化接枝等步骤制备具有酸催化功能的竹屑活性炭磺酸,通过FTIR、TG、DTA对其进行了分析,并测定了其催化性能。结果表明,在炭化温度为560℃、炭化时间为3 h、微波活化时间为30min的最佳条件下,所制得竹屑活性炭磺酸的酸量为0.847 mmol.g-1,酯化催化效果接近于Amerlyst-15磺酸树酯,稳定性好,是一种良好的新型固体酸催化剂。

Using bamboo sawdust as material, the biomass bamboo activated char sulfonic acid functionalized solid acid catalyst was prepared through carbonization, modification by sulfuric acid. It was analyzed by FTIR,TG and DTA, and the catalytieal performance was determined,too. The optimum preparation conditions were obtained as follows： carbonization temperature 560＂C, carbonization time 3 h,microwave activation time 30 min. Under above conditions, the acid number of the biomass bamboo activated char sulfonic acid was 0. 847 mmol · g^-1 ,and its catalytical efficiency is comparable with that of Amerlyst-15. The biomass bamboo activated char sulfonicacid is a novel solid acid catalyst with good stability and good catalytical performance.