微波辐照澳洲坚果壳制备活性炭工艺研究  

Study on the technology of activated carbon preparation of microwave irradiation of macadamia shell

作　　者：涂行浩[1] 张秀梅[1] 刘玉革[1] 杜丽清[1] 黄茂芳[2] 朱德明[2] 

机构地区：[1]中国热带农业科学院南亚热带作物研究所农业部热带果树生物学重点实验室,广东湛江524091 [2]中国热带农业科学院农产品加工研究所,广东湛江524001

出　　处：《食品工业科技》2015年第20期253-259,270,共8页Science and Technology of Food Industry

基　　金：中央级公益性科研院所基本业务费(1630062014013);海南省重大科技项目(ZDZX2013023-3);公益性行业(农业)科研专项(201303077-2)

摘　　要：以澳洲坚果壳为原料,研究微波加热Zn Cl2活化法制备高性能活性炭工艺。通过单因素实验考察了微波剂量、微波辐照时间和Zn Cl2质量分数三个主要因素对果壳活性炭碘吸附值、亚甲基蓝吸附值以及活性炭得率的影响。在单因素实验的基础上,以碘吸附值以及活性炭得率为响应值,进行Box-Behnken中心组合实验,对所得活性炭产品得率以及吸附性能进行测定。优化得到的较佳工艺条件为:经过质量分数为40%的Zn Cl2浸渍,然后在微波剂量9 W/g条件下,微波辐照12 min,制备的果壳活性炭质量较佳,此条件下澳洲坚果壳活性炭碘吸附值达到1615.31 mg·g-1,亚甲基蓝吸附值达到243.63 mg·g-1,且活性炭得率达到41.69%。制备的澳洲坚果壳活性炭产品表面具有丰富的孔径结构,且孔隙的分布相对均匀,其吸附性能超过国家一级标准。Preparation of activated carbon from macadamia shell powder with ZnCI2,under microwave irradiation was researched. The effects of microwave doses,activation time and ZnCI2 solution concentration on the adsorption capacities and yield of activated carbon were investigated. Optimum technology and result were obtained as follows：microwave doses 9 W/g and activation time with 12 min,ZnCl2 solution concentration 40% （wt%）,under this technological condition,the iodine absorption value of the activated carbon was 1615.31 mg·g-1, methylene blueabsorption value was 243.63 mg·g-1,the yield of activated carbon could reach 41.69%. The surface preparation of activated carbon product with abundant of the pore structure,and a relatively uniform distribution of pores, its adsorption capacity was more than the national standard.

关 键 词：澳洲坚果壳 微波处理 活性炭 响应面法 

分 类 号：TS201.1[轻工技术与工程—食品科学]