Ultra-High Surface Area Activated Porous Asphalt for CO2 Capture through Competitive Adsorption at High Pressures

被引:111
作者
Jalilov, Almaz S. [1 ]
Li, Yilun [1 ]
Tian, Jian [1 ]
Tour, James M. [2 ]
机构
[1] Rice Univ, Dept Chem, 6100 Main ST MS 60, Houston, TX 77005 USA
[2] Rice Univ, Dept Chem, NanoCarbon Ctr, Dept Mat Sci & NanoEngn, 6100 Main ST MS 222, Houston, TX 77005 USA
关键词
CARBON-DIOXIDE CAPTURE; ELECTRIC SWING ADSORPTION; GAS SEPARATION; NATURAL-GAS; METHANE; DISPLACEMENT; STORAGE; GREEN;
D O I
10.1002/aenm.201600693
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This study reports an improved method for activating asphalt to produce ultra-high surface area porous carbons. Pretreatment of asphalt (untreated Gilsonite, uGil) at 400 degrees C for 3 h removes the more volatile organic compounds to form pretreated asphalt (uGil-P) material with a larger fraction of higher molecular weight pi-conjugated asphaltenes. Subsequent activation of uGil-P at 900 degrees C gives an ultra-high surface area (4200 m(2) g(-1)) porous carbon material (uGil-900) with a mixed micro and mesoporous structure. uGil-900 shows enhanced room temperature CO2 uptake capacity at 54 bar of 154 wt% (35 mmol g(-1)). The CH4 uptake capacity is 37.5 wt% (24 mmol g(-1)) at 300 bar. These are relevant pressures in natural gas production. The room temperature working CO2 uptake capacity for uGil-900 is 19.1 mmol g(-1) (84 wt%) at 20 bar and 32.6 mmol g(-1) (143 wt%) at 50 bar. In order to further assess the reliability of uGil-900 for CO2 capture at elevated pressures, the authors study competitive sorption of CO2 and CH4 on uGil-900 at pressures from 1 to 20 bar at 25 degrees C. CO2/CH4 displacement constants are measured at 2 to 40 bar, and found to increase significantly with pressure and surface area.
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页数:7
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共 43 条
  • [1] Compactivation: A mechanochemical approach to carbons with superior porosity and exceptional performance for hydrogen and CO2 storage
    Adeniran, Beatrice
    Mokaya, Robert
    [J]. NANO ENERGY, 2015, 16 : 173 - 185
  • [2] Upgrading of heavy crude oils: Castilla
    Alirio Carrillo, Jesus
    Milena Corredor, Laura
    [J]. FUEL PROCESSING TECHNOLOGY, 2013, 109 : 156 - 162
  • [3] US natural gas exports and their global impacts
    Arora, Vipin
    Cai, Yiyong
    [J]. APPLIED ENERGY, 2014, 120 : 95 - 103
  • [4] Graphene, related two-dimensional crystals, and hybrid systems for energy conversion and storage
    Bonaccorso, Francesco
    Colombo, Luigi
    Yu, Guihua
    Stoller, Meryl
    Tozzini, Valentina
    Ferrari, Andrea C.
    Ruoff, Rodney S.
    Pellegrini, Vittorio
    [J]. SCIENCE, 2015, 347 (6217)
  • [5] Activated carbons and amine-modified materials for carbon dioxide capture - a review
    Chen, Zhenhe
    Deng, Shubo
    Wei, Haoran
    Wang, Bin
    Huang, Jun
    Yu, Gang
    [J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING, 2013, 7 (03) : 326 - 340
  • [6] Adsorbent Materials for Carbon Dioxide Capture from Large Anthropogenic Point Sources
    Choi, Sunho
    Drese, Jeffrey H.
    Jones, Christopher W.
    [J]. CHEMSUSCHEM, 2009, 2 (09) : 796 - 854
  • [7] Carbon Capture and Sequestration
    Chu, Steven
    [J]. SCIENCE, 2009, 325 (5948) : 1599 - 1599
  • [8] Carbon Dioxide Capture: Prospects for New Materials
    D'Alessandro, Deanna M.
    Smit, Berend
    Long, Jeffrey R.
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (35) : 6058 - 6082
  • [9] Ultrahigh Porosity in Metal-Organic Frameworks
    Furukawa, Hiroyasu
    Ko, Nakeun
    Go, Yong Bok
    Aratani, Naoki
    Choi, Sang Beom
    Choi, Eunwoo
    Yazaydin, A. Oezguer
    Snurr, Randall Q.
    O'Keeffe, Michael
    Kim, Jaheon
    Yaghi, Omar M.
    [J]. SCIENCE, 2010, 329 (5990) : 424 - 428
  • [10] Asphaltenic aggregates are polydisperse oblate cylinders
    Gawrys, KL
    Kilpatrick, PK
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 288 (02) : 325 - 334