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木屑制备高孔隙成型活性炭及Doehlert设计法优化
引用本文:殷蒙蒙,唐瑞源,吕炳勇,乔英云,田原宇. 木屑制备高孔隙成型活性炭及Doehlert设计法优化[J]. 生物质化学工程, 2017, 51(6): 19-25. DOI: 10.3969/j.issn.1673-5854.2017.06.004
作者姓名:殷蒙蒙  唐瑞源  吕炳勇  乔英云  田原宇
作者单位:1. 山东科技大学 低碳能源研究中心, 山东 青岛 266590;2. 中国石油大学(华东)重质油国家重点实验室, 山东 青岛 266580;3. 胜利油田滨南采油厂管理七区注采一站, 山东 滨州 256600
基金项目:国家自然科学基金资助项目(21576294)
摘    要:以木屑为原料,不添加任何黏结剂,使用H3PO4作为活化剂,制备高孔隙的成型活性炭。利用N2吸附-脱附、XRD及万能试验机,考察了不同活化时间(1~3 h)、活化温度(500~700 ℃)对成型活性炭性能的影响。结果表明:制备的成型活性炭具有较高的比表面积、孔隙率、得率、表观密度、耐压强度和总孔容积。在活化温度为600 ℃,活化时间为1 h的条件下,其比表面积达1 022.6 m2/g,得率为32.2 %,表观密度为0.62 g/cm3,耐压强度为5.23 MPa,总孔容积为0.49 cm3/g,微孔比例达到91.8 %。通过Doehlert设计法对反应条件进行优化,结果表明优化的制备条件为活化温度590 ℃,活化时间2.1 h,此时成型活性炭得率、耐压强度和表观密度分别为31.8 %、5.54 MPa、0.87 g/cm3。理论值和实验值存在很好的一致性,表明该理论模型是可靠的。

关 键 词:成型活性炭  高孔隙  H3PO4  Doehlert设计法  活化时间  
收稿时间:2016-11-09

Preparation of High Porosities Active Carbon Monoliths from Sawdust and Doehlert Matrix Method Optimization
YIN Mengmeng,TANG Ruiyuan,L,#,Bingyong,QIAO Yingyun,TIAN Yuanyu. Preparation of High Porosities Active Carbon Monoliths from Sawdust and Doehlert Matrix Method Optimization[J]. Biomass Chemical Engineering, 2017, 51(6): 19-25. DOI: 10.3969/j.issn.1673-5854.2017.06.004
Authors:YIN Mengmeng  TANG Ruiyuan  L&#  Bingyong  QIAO Yingyun  TIAN Yuanyu
Affiliation:1. Key Laboratory of Low Carbon Energy and Chemical Engineering, Shandong University of Science and Technology, Qingdao 266590, China;2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum(EastChina), Qingdao 266580, China;3. Binnan Oil Production Factory of Shengli Oilfield Management Zone Seven Injection Station, Binzhou 256600, China
Abstract:Sawdust was used as precursor to prepare binderless high porosities active carbon monoliths(ACMs) with H3PO4 as activator and without binder. The influences of temperature(500-700 ℃) and activation time(1-3 h) on the properties of ACMs were analyzed by N2 adsorption-desorption, X-ray diffraction(XRD) and compression test. The results showed that the ACMs had high specific surface area, porosity, yield, apparent density, compressive strength and total pore volume and they could reach 1 022.6 m2/g, 32.2 %, 0.62 g/cm3, 5.23 MPa, 0.49 cm3/g and 91.8 % when the activation temperature was 600 ℃ and the activation time was 1 h. The Doehlert matrix method was used to optimize the reaction conditions and the optimal temperature and time were 590 ℃ and 2.1 h. Under these conditions the yield, compressive strength and density of ACMs were 31.8%, 5.54 MPa and 0.87 g/cm3. It was found that the theoretical value was consistent with experimental value and the theoretical model was reliable.
Keywords:active carbon monoliths  high porosities  phosphoric acid  Doehlert matrix method  activation time  
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