Separation performance of CO2/CH4 on porous carbons derived from glucose

被引：0

作者：

Wang L. ^{[1
]}

Wang X. ^{[1
]}

Li H. ^{[1
]}

Chen Y. ^{[1
]}

Li Z. ^{[1
,2
]}

机构：

[1] School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, Guangdong

[2] State Key Laboratory of Subtropical Building Science, Guangzhou, 510640, Guangdong

来源：

Li, Zhong (cezhli@scut.edu.cn) | 2018年 / Materials China卷 / 69期

关键词：

Adsorption; Carbon dioxide; Glucose; Hydrothermal carbonization; Methane; Porous carbons; Selectivity;

D O I：

10.11949/j.issn.0438-1157.20171368

中图分类号：

学科分类号：

摘要：

A series of glucose-based porous carbons (C-GLCs-800) were developed by simple carbonization and KOH activation, and characterized by scanning emission microscopy (SEM), nitrogen sorption, Fourier transformed infrared (FI-TR) and thermogravimetric analysis (TGA). Pure component adsorption isotherms of CO2 and CH4 were measured separately at 288, 298, and 308 K. The ideal adsorbed solution theory (IAST) model was used to estimate adsorption selectivity of the samples for CO2/CH4 binary mixtures. Results showed that the specific surface area and total pore volume of C-GLCs-800 increased at first and then decreased with the ratio of KOH/C at which the samples were activated. The BET surface area and total pore volume of C-GLC-800-4 reached as high as 3153 m2•g-1 of 2.056 cm3•g-1, respectively. The narrow micropores voulme of C-GLC-800-2 reached as high as 0.3538 cm3•g-1. The C-GLC-800-2 exhibited an extraordinary CO2 adsorption capacity of 3.96 mmol•g-1 at 298 K under 105 Pa, which was comparable to many traditional adsorbents and MOFs. The isosteric heats of CO2 adsorption on C-GLC-800-2 was higher than that of CH4. The IAST-predicted CO2/CH4 selectivity was about 8.35. © All Right Reserved.

引用

下载

页码：733 / 740

页数：7

共 42 条

[1] Monnet F., An Introduction to Anaerobic Digestion of Organic Wastes: Final Report, Remade Scotland, (2003)
[2] Bae Y.S., Snurr R.Q., Development and evaluation of porous materials for carbon dioxide separation and capture, Angewandte Chemie-International Edition, 50, 49, pp. 11586-11596, (2011)
[3] Kong X.M., Yang Y., Shen W.L., Et al., Adsorption equilibrium of CO2, CH4, and N2 on zeolite 13X-APG, CIESC Journal, 64, 6, pp. 2117-2124, (2013)
[4] Morishige K., Adsorption and separation of CO2/CH4 on amorphous silica molecular sieve, Journal of Physical Chemistry C, 115, 19, pp. 9713-9718, (2011)
[5] Huang Y., Yue Y.Y., He L., Et al., An efficient CuCl@β adsorbent with high CO adsorption uptake and CO/N2 and CO/CO2 selectivities, CIESC Journal, 66, 9, pp. 3556-3562, (2015)
[6] Ribeiro R.P., Sauer T.P., Lopes F.V., Et al., Adsorption of CO2, CH4, and N2 in active carbon honeycomb monolith, Journal of Chemical and Engineering Data, 53, 10, pp. 2311-2317, (2008)
[7] Sumida K., Rogow D.L., Mason J.A., Et al., Carbon dioxide capture in metal-organic frameworks, Chemical Reviews, 112, 2, pp. 724-781, (2012)
[8] Liu Y.Y., Huang Y., He J.J., Et al., Adsorption isotherms and selectivity of CO/N2/CO2 on MOF-74(Ni), CIESC Journal, 66, 11, pp. 4469-4475, (2015)
[9] Li Y.J., Miao J.P., Sun X.J., Et al., Mechano-chemical synthesis of HKUST-1 with high capacity of benzene adsorption, CIESC Journal, 66, 2, pp. 793-799, (2015)
[10] Hamon L., Jolimatre E., Pirngruber G.D., CO2 and CH4 separation by adsorption using Cu-BTC metal-organic framework, Industrial and Engineering Chemistry Research, 49, 13, pp. 7497-7503, (2010)

← 1 2 3 4 5 →