磷酸活化法制备椰壳基不定型颗粒活性炭  

Preparation of Unshaped Granular Activated Carbon from Coconut Shell by Phosphoric Acid Activation

作　　者：林冠烽[1,2] 吴开金[1,2] 常颖萃 陈涵[1,2] 余进 

机构地区：[1]福建省林业科学研究院 [2]福建省森林培育和林产品加工利用重点实验室,福建福州350012

出　　处：《生物质化学工程》2015年第3期49-51,共3页Biomass Chemical Engineering

基　　金：国家自然科学基金资助项目(31400510)

摘　　要：以椰壳为原料,采用磷酸活化法制备椰壳基不定型颗粒活性炭,分析了反应条件对活性炭性能的影响。研究结果表明,随着浸渍比的升高,活性炭醋酸吸附量和醋酸锌吸附量呈不断上升的趋势,表观密度和强度呈下降趋势。活化温度和烘干温度的升高有利于活性炭醋酸锌吸附量、表观密度和强度的提高。在浸渍比1.25∶1,活化温度400℃和烘干温度120℃,制得不定型颗粒活性炭的醋酸吸附量546 mg/g、醋酸锌吸附量61 g/L、表观密度0.395 g/m L和强度84.4%,符合国家标准GB/T 13803.5—1999的要求。LIN Guan-feng;WU Kai-jin;CHANG Ying-cui;CHEN Han;YU Jin;Fujian Academy of Forestry Science;Fujian Provincial Key Lab. of Forest Silviculture and Forest Product Processing Utilization; Coconut shell was used to prepare unshaped granular activated carbon by phosphoric acid activation. The effects of the preparation conditions on the properties of activated carbon were discussed. The results showed that with the increasing of impregnation ratio,the adsorption values of acetate and zinc acetate on activated carbon increased,but its apparent density and intensity decreased. The raise of activation temperature and dry temperature benefited the increase of the adsorption value of zinc acetate,apparent density,and intensity. Under impregnation ratio 1. 25 ∶ 1,activation temperature 400 ℃,and dry temperature120 ℃,the adsorption value of acetate and zinc acetate,apparent density and intensity were 546 mg / g,61 g / L,0. 395 g / m L,and84. 4%,respectively. The indexes of the activated carbon accorded with the requirement of national standard GB / T 13803. 5—1999.

关 键 词：磷酸活化法 椰壳 不定型 颗粒活性炭 

分 类 号：TQ424.1[化学工程]