Article
Engineering, Chemical
Takayuki Kushida, Sakurako Wada, Yukio Furukawa
Summary: We developed a thermochemical model to evaluate the CO2 regeneration energies in aqueous solutions of MEA, DEA, AMP, and IPAE. The regeneration heat includes reaction heat, sensible heat, and vaporization heat. We calculated the reaction heat using our model and determined the concentrations of all chemical species in the CO2 absorption and release states. The contribution of protonation reaction is significant in sterically hindered amines AMP and IPAE, while both protonation and carbamate hydrolysis play important roles in MEA and DEA. Sensible heat dominates the regeneration heat compared to reaction and vaporization heats.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Environmental
Liju Bai, Shijian Lu, Qizheng Zhao, Linlin Chen, Yingjie Jiang, Chunxiao Jia, Siming Chen
Summary: This study proposes a non-aqueous biphasic solvent for CO2 capture with reduced energy consumption. The solvent shows improved CO2 absorption and desorption performance, as well as higher energy efficiency in regeneration.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Energy & Fuels
Slyvester Yew Wang Chai, Lock Hei Ngu, Bing Shen How
Summary: This review evaluates the carbon utilization potential of major CO2-capturing absorbents and highlights the potential application of all absorbents for CO2 utilization except for ionic liquids. Absorbents requiring a desorption process can utilize CO2 as chemical feedstocks, enhanced oil recovery, and mineral carbonation, while other absorbents can directly utilize absorbed CO2 to produce construction materials. Furthermore, the incorporation of advanced technologies and business models introduced by the fourth industrial revolution can accelerate the development of carbon capture technologies.
GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Xian Suo, Yuqing Fu, Chi-Linh Do-Thanh, Li-Qi Qiu, De-en Jiang, Shannon M. Mahurin, Zhenzhen Yang, Sheng Dai
Summary: Superbase-derived task-specific ionic liquids (STSILs) are an attractive and extensively studied system for carbon capture. In this work, carbanion-derived STSILs were developed for efficient CO2 chemisorption via a carboxylic acid formation pathway. The results demonstrate the importance of extended conjugation in the CO2-integrated product for achieving efficient CO2 chemisorption.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Thermodynamics
Xin Yin, Shufeng Shen
Summary: Water-lean amine absorbents, using dimethyl sulfoxide (DMSO) as a cosolvent, were developed for efficient CO2 capture. The DMSO-based amine blends maintained a monophasic state before and after CO2 absorption, and showed high cyclic capacity and low energy consumption. Increasing water content in the absorbents improved absorption capacity but significantly increased regeneration energy.
Article
Engineering, Chemical
Xiaoshan Li, Ji Liu, Wufeng Jiang, Ge Gao, Fan Wu, Cong Luo, Liqi Zhang
Summary: This study investigates the phase change behavior of phase change absorbents in CO2 capture, finding that a specific DETA/1-propanol/H2O solution ratio can optimize CO2 loading enrichment; additionally, 1-propanol can facilitate phase separation and the reaction between amines and CO2.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Guanchu Lu, Zhe Wang, Zongyang Yue, Wenjing Wei, Yi Huang, Xiaolei Zhang, Xianfeng Fan
Summary: The high energy consumption of aqueous amine absorbents hinders their global deployment for carbon dioxide capture. Non-aqueous amine systems provide energy-efficient alternatives, but are prone to precipitation during the absorption process. This study combines experimental and theoretical approaches to investigate the factors influencing precipitation and the effectiveness of different solvents. Based on these findings, novel non-aqueous absorbents have been developed to improve CO2 absorption and desorption performance, resulting in reduced energy consumption.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Yongda Cao, Chenglong Yang, Chao Wang, Changan Zhou, Lei Song, Kui Ma, Houfang Lu, Hairong Yue
Summary: A novel rapid phase change absorbent composed of ether solvent (SA) and potassium glycinate (GlyK) aqueous solution was developed, which exhibited high CO2 capacity, fast liquid-liquid phase separation, and low energy consumption. The absorbent also showed excellent cycling stability and a 30% reduction in energy consumption compared to the 3 M MEA system.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Geochemistry & Geophysics
Chanakarn Thamsiriprideeporn, Suekane Tetsuya
Summary: The study investigated the feasibility of using blended amine absorbents for improved CO2 alkanolamine-based absorption in multicycle IAM. Blended absorbents, including diethanolamine, triethanolamine, and aminomethyl propanol (AMP) combined with monoethanolamine (MEA), were evaluated for their absorption performance and carbonate production. The results showed that a blend of 15 wt.% AMP and 5 wt.% MEA achieved high CO2 absorption and conversion efficiency, making it a promising alternative for future CO2 capture and utilization.
Article
Thermodynamics
Haider Sultan, Thai-Quyen Quach, Hafiz Ali Muhammad, Umair H. Bhatti, Young Duk Lee, Min Gwan Hong, Ill Hyun Baek, Nam Sung Chan
Summary: Process modification is an effective method to reduce the energy requirement of solvent-based carbon dioxide capture and storage processes. A systematic approach has been developed to split regeneration energy and reduce avoidable components, resulting in an advanced process with significantly lower thermal energy requirements and improved efficiency.
APPLIED THERMAL ENGINEERING
(2021)
Article
Engineering, Environmental
Mahmoud Mahmoudi Marjanian, Shahrokh Shahhosseini, Aminreza Ansari
Summary: The research shows that input power plays a significant role in the absorption rate in an ultrasound-assisted CO2 absorption system, while the absorption rate is not sensitive to temperature. Using ultrasonic atomization method can increase CO2 absorption rate compared to conventional stirring method.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Green & Sustainable Science & Technology
Wonhyeok Lee, Ronghuan Xu, Seonggon Kim, Jong Ha Park, Yong Tae Kang
Summary: Research on CO2 capture using nanofluids and nanoemulsions has shown significant improvements in the absorption performance, with the best absorption observed at 0.05 vol% of nanoparticles. The experiments highlighted the dominant role of hydrodynamic effects in enhancing mass transfer in nanofluids and nanoemulsions.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Chemical
Baoqiang Wang, Xiaochun Chen, Guangren Yu
Summary: A new class of biphasic system composed of TEPA, organic solvents and water is developed for capturing CO2, showing better performance compared to traditional absorbents. It has higher absorption capacity, lower desorption energy consumption, and shorter absorption equilibrium time. This is a promising absorbent for CO2 capture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Thermodynamics
Kun Fu, Mingzhen Zheng, Haijie Wang, Dong Fu
Summary: In our recent study, a mixture of 70 wt% 2-ethylhexan-1-amine (EHA) and 30 wt% diglyme was found to be a promising system for carbon dioxide (CO2) absorption. The study investigated the capture performance of 15 kPa CO2 in different compositions of EHA and diglyme solutions. The proposed sorbents showed low viscosities and higher CO2 desorption capacities compared to aqueous ethanolamine (MEA) solutions. Moreover, the sorbents demonstrated good regeneration efficiency and lower energy consumption for CO2 desorption.
Article
Engineering, Chemical
Xianhang Jin, Jiawei Fang, Qian Ma, Rong Wang, Weidong Zhang
Summary: This study investigates the effect of amine structure on the development of CO2 phase change absorbents (CPCAs) and proposes a development guideline based on amine properties. By adjusting the types of amine and diluent, all amines in this study can be successfully developed as CPCAs. Experimental results show that the developed CPCAs have a 34.4% higher CO2 cyclic capacity compared to the traditional DEA/H2O system.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)