| 木屑制备高孔隙成型活性炭及Doehlert设计法优化 |
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| 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 |
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| 作者姓名： | 殷蒙蒙 唐瑞源 吕炳勇 乔英云 田原宇 |
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| 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 |
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| 基金项目： | 国家自然科学基金资助项目（21576294） |
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| 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。
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| 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 |
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| 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 |
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| Authors: | YIN Mengmeng TANG Ruiyuan L&# Bingyong QIAO Yingyun TIAN Yuanyu |
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| 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 |
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| 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. |
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| Keywords: | active carbon monoliths high porosities phosphoric acid Doehlert matrix method activation time |
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