林产化学与工业2024，Vol.44Issue(6)：111-118,8.DOI:10.3969/j.issn.0253-2417.2024.06.013
基于水蒸气活化法的桃木活性炭制备与结构表征
Preparation and Structural Characterization of Activated Carbon From Fruit Tree Branches Based on Steam Activation Method
摘要
Abstract
The utilization of forest and fruit wastes was an important part of the sustainable development of the economic forestry industry.The pyrolysis charcoal of forest and fruit wastes had high carbon content and low ash content,which was suitable for the preparation of high-value activated carbon.Taking the pyrolysis charcoal of peach wood as the raw material,the effects of steam activation temperature,flow rate,activation pressure and activation time on the iodine adsorption value,methylene blue adsorption and yield of activated carbon from peach wood were studied.The peach wood activated carbon prepared under the optimized conditions was characterized,and its micro-morphology,surface functional groups,abrasion strength,pore size characteristics and adsorption performance were analyzed.The results showed that the optimal conditions for preparing peach wood activated carbon using the steam activation process were an activation temperature of 850℃,a flow rate of 400 L/h,an activation pressure of 0.02 MPa,and an activation time of 1 h.Under these conditions,the iodine adsorption value of the activated carbon was 962.89 mg/g,the adsorption value of methylene blue was 250.58 mg/g,the specific surface area was 855.79 m2/g,the total pore volume was 0.60 cm3/g,the microporous pore volume was 0.19 cm3/g,the average pore size was 2.79 nm,and the abrasion strength was 90.64％.Fruit wood activated carbon with rich pore structure and excellent adsorption performance could be prepared by steam activation method using fruit wood as raw material.关键词
水蒸气活化/工艺优化/果木生物炭/活性炭Key words
steam activation/process optimization/fruit wood biochar/activated carbon分类
化学化工引用本文复制引用
董江川,刘学磊,任学勇,叶林根,祁项超,贺亮..基于水蒸气活化法的桃木活性炭制备与结构表征[J].林产化学与工业,2024,44(6):111-118,8.基金项目
河北省中央财政林业科技推广项目(冀TG[2022]004) （冀TG[2022]004）
国家重点研发计划资助项目(2022YFD2200904) （2022YFD2200904）
