Synthesis of mechanically robust porous carbon monoliths for CO2 adsorption and separation

被引:7
|
作者
Jie Du [1 ]
Wen-Cui Li [1 ]
Zhan-Xin Ren [1 ]
Li-Ping Guo [1 ]
An-Hui Lu [1 ]
机构
[1] State Key Laboratory of Fine Chemicals,School of Chemical Engineering,Dalian University of Technology
基金
长江学者奖励计划; 中国国家自然科学基金;
关键词
Carbon monoliths; High mechanical strength; Adsorption; Gas separation;
D O I
暂无
中图分类号
O613.71 [碳C];
学科分类号
070301 ; 081704 ;
摘要
Porous carbon materials with developed porosity,high surface area and good thermal-and chemicalresistance are advantageous for gas adsorption and separation.However,most carbon adsorbents are in powder form which exhibit high pressure drop when deployed in practical separation bed.While monolithic carbons have largely addressed the pulverization problem and preserved kinetics and usually suffer from abrasion during multiple adsorption-desorption cycles.Herein,we proposed the designed synthesis of mechanically robust carbon monoliths with hierarchical pores,solid nitrogen-containing framework.The synthesis started with the polymerization of resorcinol and formaldehyde under weakly acidic conditions generated from cyanuric acid,and then an appropriate amount of hexamethylenetetramine(HMTA)was added as a crosslinker to prompt the formation of three dimensional frameworks.After carbonization process,the as-obtained porous carbon monoliths have a high radial compressive strength of 886 N/cm as well as a BET specific surface area of up to 683 m/g.At approximately 1 bar,the COequilibrium capacities of the monoliths are in the range of 3.1–4.0 mmol/g at 273 K and of 2.3–3.0 mmol/g at 298 K,exhibiting high selectivity for the capture of COover Nfrom a stream which consists of 16.7%(v%)COin N.Meanwhile,they undergo a facile COrelease in an argon stream at 298 K,indicating a good regeneration capacity.After cycle testing,sieving and regeneration,the adsorbent has no mass loss,compared to that of its fresh counterpart.
引用
收藏
页码:56 / 61
页数:6
相关论文
共 50 条
  • [1] Synthesis of mechanically robust porous carbon monoliths for CO2 adsorption and separation
    Du, Jie
    Li, Wen-Cui
    Ren, Zhan-Xin
    Guo, Li-Ping
    Lu, An-Hui
    JOURNAL OF ENERGY CHEMISTRY, 2020, 42 : 56 - 61
  • [2] Carbon monoliths for CO2 adsorption
    Banciu, C.
    Bara, A.
    Leonat, L.
    Patroi, D.
    OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 2011, 5 (12): : 1341 - 1345
  • [3] Diethylene glycolamine-assisted rapid synthesis of mechanically robust pyrogallol-based carbon monoliths for CO2 capture and separation
    Li, Peilin
    Zhong, Jing
    Ma, Wenzhong
    Zhang, You
    Ren, Xiuxiu
    Guo, Meng
    Zhu, Yongfei
    JOURNAL OF CO2 UTILIZATION, 2023, 75
  • [4] CO2 adsorption on binderless activated carbon monoliths
    Diana Paola Vargas
    Liliana Giraldo
    Joaquín Silvestre-Albero
    Juan Carlos Moreno-Piraján
    Adsorption, 2011, 17 : 497 - 504
  • [5] CO2 adsorption on binderless activated carbon monoliths
    Paola Vargas, Diana
    Giraldo, Liliana
    Silvestre-Albero, Joaquin
    Carlos Moreno-Pirajan, Juan
    ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY, 2011, 17 (03): : 497 - 504
  • [6] Designed porous carbon materials for efficient CO2 adsorption and separation
    Zhang Xiang-qian
    Li Wen-cui
    Lu An-hui
    NEW CARBON MATERIALS, 2015, 30 (06) : 481 - 501
  • [7] CO2 adsorption on oxygen enriched porous carbon monoliths: Kinetics, isotherm and thermodynamic studies
    Singh, Jasminder
    Bhunia, Haripada
    Basu, Soumen
    JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2018, 60 : 321 - 332
  • [8] Chemical modification of activated carbon monoliths for CO2 adsorption
    Vargas, D. P.
    Giraldo, L.
    Erto, A.
    Moreno-Pirajan, J. C.
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2013, 114 (03) : 1039 - 1047
  • [9] Chemical modification of activated carbon monoliths for CO2 adsorption
    D. P. Vargas
    L. Giraldo
    A. Erto
    J. C. Moreno-Piraján
    Journal of Thermal Analysis and Calorimetry, 2013, 114 : 1039 - 1047
  • [10] Solar thermal swing adsorption on porous carbon monoliths for high-performance CO2 capture
    Zheng Wu
    Xing-Hao Du
    Qian-Feng Zhang
    Maria Strømme
    Chao Xu
    Nano Research, 2023, 16 : 10617 - 10625