磷酸活化竹节制备醋酸乙烯载体活性炭的研究  

Preparation of Bamboo Knot Activated Carbon as Vinyl Acetate Catalyst Carrier by Phosphoric Acid Activation

作　　者：林冠烽[1,2] 蒋剑春[1] 吴开金[2] 孙康[1] 齐龙 

机构地区：[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源与材料重点实验室,江苏南京210042 [2]福建省林业科学研究院,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 [3]上海兴长活性炭有限公司,上海201803

出　　处：《林产化学与工业》2012年第5期51-55,共5页Chemistry and Industry of Forest Products

基　　金：国家林业局公益性行业专项(201004051);省属公益类科研院所基本科研专项(2011R1013-5);福建省自然科学基金(2011J01286)

摘　　要：以竹节为原料,采用磷酸法制备醋酸乙烯载体活性炭。实验结果表明,随着温度(325～400℃)、浸渍比值(0.60～0.75)和保温时间(3～6 h)的增加,竹节活性炭的比表面积、微孔容积和醋酸吸附量呈先升后降的趋势,而醋酸锌吸附量呈相反趋势;N2吸附等温线表明,竹节活性炭具有发达的微孔和大孔结构。在较优的工艺条件下:活化温度350℃,保温时间5 h和浸渍比值0.65,可制得醋酸吸附量527.5 mg/g,醋酸锌吸附量70 g/L,比表面积999.0 m2/g和微孔容积0.468 cm3/g的活性炭。Bamboo knot was used to prepare activated carbon as vinyl acetate catalyst carrier by phosphoric acid activation. The result showed that the adsorption value of acetate, BET, microporous volume increased with rising temperature （325-400 ℃ ）, impregnate ratio （0. 60-0. 75 ） and holding time （3-6 h）, but the adsorption of zinc acetate showed the opposite trend. N2- adsorption isotherm showed that the possessed activated carbon developed microporous and maeroporous structure. Under the opti- mized eondition,i, e. activation temperature 350 ℃,holding time 5 h and impregnation ratio 0.65, the adsorption value of acetate and zinc acetate, BET, microporous volume were 527.5 mg/g, 70 g/L, 999.0 m2/g and 0.468 cm3/g, respectively.

关 键 词：活性炭 竹节 醋酸乙烯 载体 

分 类 号：TQ35[化学工程]