Preparation of flexible carbon fiber based sorbents and their CO2 capture performance

被引：0

作者：

Yuan H.-L. ^{[1
]}

Zhong W.-S. ^{[1
]}

Zheng S.-J. ^{[1
]}

Jiang W. ^{[1
]}

Hu G.-S. ^{[1
]}

机构：

[1] Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2023年 / 37卷 / 01期

关键词：

carbon fiber; CO[!sub]2[!/sub] capture; mass transfer resistance; pentaethylenehexamine(PEHA);

D O I：

10.3969/j.issn.1003-9015.2023.01.008

中图分类号：

学科分类号：

摘要：

Powdered solid sorbents have problems of high cost and large mass transfer resistance. In this study, carbon fibers derived from carbonized cotton were used as supports, and solid amine sorbents were prepared by impregnating pentaethylenehexamine (PEHA) onto the carbon fibers. The sorbents were characterized by scanning electron microscopy, physical adsorption, infrared and thermogravimetric analysis. The CO2 adsorption performance of the sorbents were tested by the breakthrough curve method. The results show that carbon fiber C500 which was carbonized at 500 ℃ has the largest specific surface area (471 m2.g-1). The adsorption capacity of the 50PEHA/C500 adsorbent reached 4.05 mmol.g-1 at 75 ℃ with excellent adsorption CO2 performance. Compared with powder adsorbents, the carbon fibers have larger voids, and the scale-up experiment confirmed that 50PEHA/C500 has a smaller mass transfer resistance than 50PEHA/SBA-15. The cycle test results show that the 50PEHA/C500 adsorbent has excellent regeneration performance. The 50PEHA/C500-based adsorbent has low cost, low mass transfer resistance and excellent CO2 capture capacity, which shows good application prospects. © 2023 Zhejiang University. All rights reserved.

引用

页码：61 / 67

页数：6

共 26 条

[1] ZHAO N, YOU F., Can renewable generation, energy storage and energy efficient technologies enable carbon neutral energy transition?, Applied Energy, 279, (2020)
[2] KOYTSO UMPA E I, BERGINS C, KAKARAS E., The CO2 economy: Review of CO2 capture and reuse technologies, The Journal of Supercritical Fluids, 132, pp. 3-16, (2018)
[3] ZHANG R, WANG X, LIU S, Et al., Discovering inherent characteristics of polyethylenimine-functionalized porous materials for CO2 Capture, ACS Applied Materials & Interfaces, 11, 40, pp. 36515-36524, (2019)
[4] BURKART M D, HAZARI N, TWAY C L, Et al., Opportunities and challenges for catalysis in carbon dioxide utilization, ACS Catalysis, 9, 9, pp. 7937-7956, (2019)
[5] COFFEL E D, MANKIN J S., Thermal power generation is disadvantaged in a warming world, Environmental Research Letters, 16, 2, (2021)
[6] XU X, SONG C, ANDRESEN J M, Et al., Novel polyethylenimine-modified mesoporous molecular sieve of MCM-41 type as high-capacity adsorbent for CO2 capture, Energy & Fuels, 16, 6, pp. 1463-1469, (2002)
[7] GUO Y, QIAN C, WU Y, Et al., Porous catalytic membranes for CO2 conversion, Journal of Energy Chemistry, 63, pp. 74-86, (2021)
[8] YAN X, ZHANG L, ZHANG Y, Et al., Amine-modified SBA-15: Effect of pore structure on the performance for CO2 capture, Industrial & Engineering Chemistry Research, 50, 6, pp. 3220-3226, (2011)
[9] SANZ R, CALLEJA G, ARENCIBIA A, Et al., CO2 adsorption on branched polyethyleneimine-impregnated mesoporous silica SBA-15, Applied Surface Science, 256, 17, pp. 5323-5328, (2010)
[10] YUE M B, SUN L B, CAO Y, Et al., Promoting the CO2 adsorption in the amine-containing SBA-15 by hydroxyl group, Microporous and Mesoporous Materials, 114, pp. 74-81, (2008)

← 1 2 3 →