Article
Engineering, Environmental
Junpeng Tian, Yuanhui Shen, Donghui Zhang, Zhongli Tang
Summary: The novel structured composite adsorption medium showed promising potential for CO2 capture, while the VPSA process achieved high purity and recovery rates with reduced energy consumption and increased productivity. Optimization of operating parameters led to effective separation performance, including 40.08% CO2 purity, 96.55% CO2 recovery, and 2.40 molCO(2)/kg(ads)/h productivity.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Ayse Sever Akdag, Ines Duran, Gulen Gullu, Covadonga Pevida
Summary: The study evaluates the CO2 capture performance of hazelnut shell-based activated carbon adsorbent from dry simulated flue gases using Temperature Swing Adsorption (TSA) and Vacuum Swing Adsorption (VSA) configurations. Results show that the biomass-based adsorbent exhibits high CO2 adsorption performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
A. Gutierrez-Ortega, R. Nomen, J. Sempere, J. B. Parra, M. A. Montes-Moran, R. Gonzalez-Olmos
Summary: A new methodology for evaluating commercial adsorbents for CO2 capture using temperature swing adsorption has been developed. The study found that binderless zeolites performed better in CO2 production and desorption energy compared to their binder-based counterparts. The 13XBL binderless zeolite had the highest CO2 production and lowest desorption energy, while the 5A zeolites had the lowest CO2 production and highest desorption energy among the zeolites.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Qiang Ma, Lijuan Zhao, Zhenqian Chen, Huaneng Su, Qian Xu
Summary: Activated carbon fibre (ACF) absorbent shows promise in capturing volatile organic compounds, with electrothermal swing adsorption (ESA) technology achieving the regeneration of ACF materials. A numerical simulation study revealed the effects of key operation parameters on the properties of ESA, as well as the influence of carrier gas velocity on the distribution homogeneity of adsorbate concentration and desorption temperature.
CHEMICAL ENGINEERING SCIENCE
(2021)
Review
Environmental Sciences
Nada Abuelnoor, Ahmed AlHajaj, Maryam Khaleel, Lourdes F. Vega, Mohammad R. M. Abu-Zahra
Summary: In an effort to reduce excessive anthropogenic CO2 emissions, various CO2 capture technologies have been developed, with activated carbon being a promising option. Derived from agricultural waste and biomass, activated carbon can be enhanced for CO2 capture through different preparation methods and functionalization, making it suitable for industrial applications like wastewater treatment.
Article
Chemistry, Physical
Zheng Wu, Xing-Hao Du, Qian-Feng Zhang, Maria Stromme, Chao Xu
Summary: This study introduces a new technique called solar thermal swing adsorption (STSA) which utilizes intermittent illumination on porous carbon monolith (PCM) sorbents to selectively adsorb and release CO2 during the CO2 capture process. The PCM sorbents have high CO2 adsorption capacity and selectivity, and when combined with vacuum swing adsorption, can achieve a high CO2 capture rate.
Article
Engineering, Chemical
Zijian Wang, Liying Liu, Guo Tian, Tingsheng Ren, Zhi Qi, Gang Kevin Li
Summary: Globally, the combustion of fossil fuels in various industrial processes has led to a significant increase in CO2 emissions, exacerbating the greenhouse effect and climate change. Therefore, it is crucial to develop effective CO2 capture technologies. Vacuum temperature swing adsorption (VTSA) is an efficient technique for CO2 capture. However, the impact of volatile organic compounds (VOCs), such as isopropanol (IPA), commonly found in industrial flue gas, on CO2 adsorption and capture is often overlooked. This study comprehensively investigates the effect of IPA on the CO2 adsorption performance of activated carbon (AC) under varying conditions.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Drew M. Glenna, Asmita Jana, Qiang Xu, Yixiao Wang, Yuqing Meng, Yingchao Yang, Manish Neupane, Lucun Wang, Haiyan Zhao, Jin Qian, Seth W. Snyder
Summary: This article introduces an AC-based material and proposes a hierarchical guideline for evaluating the feasibility of such materials in carbon capture. The most critical performance indicator is the CO2 adsorption energy, with considerations for thermal stability and defect sensitivity, as well as selectivity and capacity.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Engineering, Environmental
Hao Dong, Tao Wang, Xiaobo Wang, Fengsheng Liu, Chenglong Hou, Zhengfeng Wang, Weishan Liu, Lin Fu, Xiang Gao
Summary: The study optimized the fabrication method of shaped adsorbents and the hydrophobicity regulation method by doping PVDF. The shaped adsorbents exhibited desirable surface area and pore structure. The adsorption experiments showed that the adsorbents had enhanced CO2 adsorption capacity and rate after doping, and the optimal doping ratio of PVDF was found to be 25%. DFT and microscopic characterization revealed the key role of C-F bond in promoting the hydrophobicity of adsorbents.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Ross Baird, Ribooga Chang, Ocean Cheung, Aimaro Sanna
Summary: This study investigated the potential of stannate-based sorbents for high temperature CO2 sorption. It was found that the in-house synthesised potassium stannate outperformed other sorbents, with a CO2 uptake of 7.3 wt% after 5 min and a higher adsorption rate. The study suggests that solid-state synthesised potassium stannate could be an effective sorbent for high temperature separation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Environmental Sciences
Mohammad Hossein Zarghampoor, Mansooreh Soleimani, Mehrdad Mozaffarian, Maryam Takht Ravanchi
Summary: In this study, a new hybrid membrane/vacuum swing adsorption (VSA) process was developed for CO2 removal from flue gases. The process combines the advantages of membrane simplicity and high product quality of the adsorption system. The hybrid process showed improvements in CO2 purity and recovery compared to the stand-alone VSA process. Sensitivity analysis and optimization were performed to study the process limitations and achieve the desired purity and recovery specifications for industrial applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Hua-Yung Liao, Shu-Yuan Pan, Shu-Wen You, Chia-Hung Hou, Can Wang, Ji-Guang Deng, Hsing-Cheng Hsi
Summary: This study developed a novel electrothermal swing system with gold-electrodeposited activated carbon fiber cloth (GE-ACFC) for adsorbing and recovering low-concentration Hg0, showing that GE-ACFC with an Au growth time of 1200 s had the best Hg0 adsorption performance; the treated GE-ACFC could achieve stable and efficient Hg re-adsorption.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Shu-Wen You, Hua-Yung Liao, Cheng-Yen Tsai, Can Wang, Ji-Guang Deng, Hsing-Cheng Hsi
Summary: This study successfully developed a novel gold nanoparticle-impregnated activated carbon fiber cloth material, which has the potential to adsorb and recover low-concentration elemental mercury. The gold nanoparticles physically adsorb mercury through amalgamation, while the activated carbon fiber cloth adsorbs it through pore structures or chemical adsorption. The material shows good stability and high adsorption efficiency during cyclic operation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Arash Rahimalimamaghani, Rouzbeh Ramezani, David Alfredo Pacheco Tanaka, Fausto Gallucci
Summary: Membrane technology is an efficient separation and purification technology with low carbon footprint and energy consumption. The study successfully fabricated carbon molecular sieve (CMS) membranes for selective separation of CO2 from methane and nitrogen. Gas permeation experiments were performed to test the selectivity and permeance of the CMS membranes under different temperature and pressure conditions. A novel multistage membrane process design was proposed to evaluate the feasibility of using the CMS membranes for CO2 separation from various carbon emission sources.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Brieuc Verougstraete, Matthias Schoukens, Ben Sutens, Ninon Vanden Haute, Yoran De Vos, Marleen Rombouts, Joeri F. M. Denayer
Summary: This study demonstrates the use of an electrically conductive activated carbon monolith for biogas upgrading. The results show that increasing the voltage, using a higher purge flow rate for a shorter time, and adding a rinse step can improve the purity and regeneration efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
