EFFECTS OF DIFFERENT ACTIVATORS ON PHYSICOCHMICAL PROPERTIES OF ACTIVATED CARBON FROM BIOMASS

Qin Qianhui; Zhong Fei; Zhao Xiaolei; Chen Siwei; Su Jing; Niu Wenjuan

doi:10.19912/j.0254-0096.tynxb.2020-0240

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (2) : 1-9. DOI: 10.19912/j.0254-0096.tynxb.2020-0240

EFFECTS OF DIFFERENT ACTIVATORS ON PHYSICOCHMICAL PROPERTIES OF ACTIVATED CARBON FROM BIOMASS

Qin Qianhui¹, Zhong Fei², Zhao Xiaolei¹, Chen Siwei¹, Su Jing¹, Niu Wenjuan¹

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Abstract

Activated carbons are prepared from poplar wood,coconut shell,cotton stalk and bamboo by using KOH, K₂CO₃ and ZnCl₂ as the activators . The effects of different activators on the physicochemical properties of pyrolysis products and activated carbons are investigated. The results show that when KOH is used as the activator,there is a balance in the proportions of three-phase products （gas,liquid,and solid） from the biomass,and the volume yield of CO is the highest;besides,the activated carbon has the highest stability of surface functional groups but with broken skeleton,and exhibits well develop microporous structures （749.90 m²/g）. The activation by K₂CO₃,leads to the highest gas yield（up to 68.96%） of the biomass,and the activated carbon has highly developed mesoporous structures as well as the largest specific surface area （1449.53 m²/g） and total pore volume （0.93 cm³/g）. Under the activation by ZnCl₂,the volume yield of H₂can exceed 40%,and the yield of activated carbon is the highest （up to 48.48%）. In addition,ZnCl₂ activation results in the highest fixed carbon content and carbon conversion rate,the activated carbon has smaller specific surface area and total pore volume than obtained under the activation of K₂CO₃, and exhibits a regular pore distribution and the highest graphitization degree.

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biomass / chemical activation / activated carbon / activators / physicochemical properties / pore structure

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Qin Qianhui, Zhong Fei, Zhao Xiaolei, Chen Siwei, Su Jing, Niu Wenjuan. EFFECTS OF DIFFERENT ACTIVATORS ON PHYSICOCHMICAL PROPERTIES OF ACTIVATED CARBON FROM BIOMASS[J]. Acta Energiae Solaris Sinica. 2022, 43(2): 1-9 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0240

References

[1] 张传涛, 邢宝林, 黄光许, 等. 水热炭化-KOH 活化制备核桃壳活性炭电极材料的研究[J]. 材料导报, 2018, 32(4): 1088-1093.
ZHANG C T, XING B L, HUANG G X, et al.Preparation of walnut shell activated carbons via combination of hydrothermal carbonization and KOH activation[J]. Materials review, 2018, 32(4): 1088-1093.
[2] 左宋林, 王永芳, 张秋红. 活性炭作为电能储存与能源转化材料的研究进展[J]. 林业工程学报, 2018, 3(4): 1-11.
ZUO S L, WANG Y F, ZHANG Q H.Activated carbons for the electrochemical storage of energy and electrochemical catalytic conversion of fuels: a review[J]. Journal of forestry engineering, 2018, 3(4): 1-11.
[3] 杨丽娟. 生物质活性炭的制备及应用发展研究[J]. 黑龙江科学, 2018, 9(18): 44-45.
YANG L J.Study on preparation and application development of biomass activated carb[J]. Heilongjiang science, 2018, 9(18): 44-45.
[4] 高银东, 王淑花, 于晓颖, 等. 氯化锌活化棉纤维制备成型活性炭工艺研究[J]. 应用化工, 2019, 48(4): 853-859.
GAO Y D, WANG S H, YU X Y, et al.Preparation of activated carbon from cotton fiber by zinc chloride[J]. Applied chemical industry, 2019, 48(4): 853-859.
[5] 李建生, 高长青, 王雪, 等. 高性能活性炭开发生产中的无机活化剂[J]. 无机盐工业, 2019, 51(8): 1-6.
LI J S, GAO C Q, WANG X, et al.Inorganic activators utilized in development and production of high performance activated carbon[J]. Inorganc chemicals industry, 2019, 51(8): 1-6.
[6] 邹专勇, 周建迪, 杨艳秋, 等. 生物质活性炭制备关键技术与应用现状[J]. 纺织科学与工程学报, 2016, 33(2): 53-57.
ZOU Z Y, ZHOU J D, YANG Y Q, et al.The key technology and application of biomass activated carbon[J]. Journal of textile science and engineering, 2016, 33(2): 53-57.
[7] OKMAN I, KARAGOZ S, TAY T, et al.Activated carbons from grape seeds by chemical activation with potassium carbonate and potassium hydroxide[J]. Applied surface science, 2014, 293: 138-142.
[8] 王亚非, 于霞, 朱钰, 等. K₂CO₃活化制备花椒籽废渣的活性炭及其对对硝基苯酚的吸附性能[J]. 应用化学, 2017, 34(5): 597-605.
WANG Y F, YU X, ZHU Y, et al.Preparation of activated carbon from waste residue of Chinese prickly ash seeds activated with K₂CO₃ and its adsorption properties for p-n itrophenol[J]. Chinese journal of applied chemistry, 2017, 34(5): 597-605.
[9] 张本镔, 刘运权, 叶跃元. 活性炭制备及其活化机理研究进展[J]. 现代化工, 2014, 3(3): 34-39.
ZHANG B B, LIU Y Q, YE Y Y.Progress in preparation of activated carbon and its activation mechanism[J]. Journal of modern chemical industry, 2014, 3(3): 34-39.
[10] KILIC M, APAYDIN-VAROL E, PUTUN A E.Preparation and surface characterization of activated carbons from Euphorbia rigida by chemical activation with ZnCl₂, K₂CO₃, NaOH and H₃PO₄[J]. Applied surface science, 2012, 261: 247-254.
[11] 樊丽华, 王晓柳, 侯彩霞, 等. 灰分对活性炭结构及性能的影响[J]. 炭素技术, 2017, 36(3): 4-8.
FAN L H, WANG X L, HOU C X, et al.The effects of ash on the structure and properties of activated carbons[J]. Carbon techniques, 2017, 36(3): 4-8.
[12] 郭云海, 李军, 金央, 等. 玉米芯活性炭的制备及性能研究[J]. 无机盐工业, 2017, 49(7): 48-51.
GUO Y H, LI J, JIN Y, et al.Preparation and adsorption performance of corncob activated carbon[J]. Inorganc chemicals industry, 2017, 49(7): 48-51.
[13] 范友华, 喻宁华, 邓腊云, 等. 高介孔体积油茶壳活性炭的制备工艺研究[J]. 西北林学院学报, 2019, 34(5): 187-194.
FAN Y H, YU N H, DENG L Y, et al.Preparation of high mesoporous activated carbon from camellia oleifra shell[J]. Journal of Northwest Forestry University, 2019, 34(5): 187-194.
[14] 朱玉雯, 李浩宇, 刘冬冬, 等. 基于活化过程碳烧失特性的孔结构发展机制[J]. 煤炭学报, 2017, 42(12): 3292-3299.
ZHU Y W, LI H Y, LIU D D, et al.Development mechanism of pore structures based on burn-off properties of carbon structures during activation process[J]. Journal of China Coal Society, 2017, 42(12): 3292-3299.
[15] 田龙. 高中孔率木质素基活性炭的制备及表征[J]. 太阳能学报, 2019, 40(3): 877-883.
TIAN L.Optimization and characterization of preparation of lignin activated carbon with high-mesoporpsity[J]. Acta energiae solaris sinica, 2019, 40(3): 877-883.
[16] WANG J, KRISHNA R, YANG T, et al.Nitrogen-rich microporous carbons for highly selective separation of light hydrocarbon[J]. Journal of materials chemistrya, 2016, 4(36): 13957-13966.
[17] YUAN B, WU X F, CHEN Y X, et al.Adsorption of CO₂, CH₄, and N₂ on ordered mesoporous carbon: approach for greenhouse gases capture and biogas upgrading[J]. Environmental cience & technology, 2013, 47(10): 5474-5480.