Article
Engineering, Chemical
Qiaobei Dong, Weiwei L. Xu, Xiao Fan, Huazheng Li, Naomi Klinghoffer, Travis Pyrzynski, Howard S. Meyer, Xinhua Liang, Miao Yu, Shiguang Li
Summary: Dimethyl ether (DME) has the potential to be an environmentally friendly substitute for diesel and LPG. A novel catalytic membrane reactor was developed to synthesize DME directly from CO2 and renewable H2, addressing environmental and fuel security issues.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Thermodynamics
Qiaoyan Shang, Jifa Xiao, Xiaojuan Liu, Yujie Ling, Wenge Liu, Guanwei Cui, Xifeng Shi, Shuqian Xia, Bo Tang
Summary: This study focused on ketones in biomass pyrolysis oil, conducting experiments and calculations to obtain key data for designing distillation separation processes. It provides important references for the distillation separation process design and offers theoretical basis and technical guidance for industrial separation processes of biomass pyrolysis oil.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2022)
Article
Engineering, Chemical
Lucia Baldino, Ernesto Reverchon
Summary: A critical analysis of the cellulose acetate industrial process highlights the potential for using supercritical CO2 for improvement, with a focus on supercritical antisolvent extraction as the most attractive alternative. This method resolves issues related to the traditional process, and can produce micro- and nanoparticles or filaments of cellulose acetate. The success of this alternative process configuration is confirmed by the low acetic acid residue in the treated cellulose acetate.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Energy & Fuels
Hyunho Kim, Jong Yeon Jung, Ki-Heum Park, Praveen Linga, Yutaek Seo, Colin D. Wood
Summary: The study found that amine-infused hydrogel (AIH) particles can efficiently capture CO2 and have a higher CO2 uptake capacity compared to traditional MEA solution. The kinetic performance for CO2 absorption was investigated under different conditions, showing that temperature, mixing, and additives affect the CO2 absorption performance of AIH particles. AIH particles tend to agglomerate without mixing, leading to decreased CO2 absorption capacity, but remain separated and show increased CO2 uptake when mixed with the gas mixture. Additional decane and dodecyltrimethylammonium bromide (DTAB) can alleviate particle coagulation and enhance both CO2 absorption rate and capacity.
Article
Engineering, Chemical
Ying-Chieh Hung, Chieh-Ming Hsieh, Hiroshi Machida, Shiang-Tai Lin, Yusuke Shimoyama
Summary: This study investigates the phase behavior of phase separation solvents before and after CO2 absorption using a predictive model. The results reveal that the hydrophilicity of amines affects the molecular interactions and miscibility of the solvents. The study suggests that amines with balanced interactions with water and glycol ether are potential candidates for CO2 capture phase separation solvents.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Thermodynamics
Xiudong Zhang, Xianqiang Li, Chundong Zhang, Leiyu Zhang, Ruxing Gao
Summary: This study measured the vapor-liquid equilibrium (VLE) data of CO2 mixed with different ether solvents and found that 1,2-DME has the strongest CO2 absorption capacity, while ether bonds can improve the absorption ability of the solvent.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2023)
Article
Biotechnology & Applied Microbiology
Quan Wang, Kazuyuki Oshita, Masaki Takaoka
Summary: This study explored an energy-saving method for lipid extraction from thickened microalgae using DME as the solvent and an entrainer solution for flocculation. Optimal extraction conditions were determined, and various analytical techniques were used to compare the results with other extraction methods. The DME-based approach showed high efficiency and economic benefits, while highlighting the need for trace metal purification in subsequent refining processes.
BIOTECHNOLOGY FOR BIOFUELS
(2021)
Article
Engineering, Chemical
Ying-Chieh Hung, Chieh-Ming Hsieh, Hiroshi Machida, Shiang-Tai Lin, Yusuke Shimoyama
Summary: A predictive approach based on COSMO-SAC has been developed to simulate the CO2 capture process using phase separation solvents, successfully describing the behavior of phase separation and CO2 solubility.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Thermodynamics
Zahra Rastegar, Ahad Ghaemi
Summary: Through experiments and numerical models, it was found that optimal CO2 absorption efficiency can be achieved at suitable temperature, pressure, and absorbent concentration. Increasing temperature and absorbent concentration can reduce CO2 loading, while increasing pressure can increase CO2 loading.
HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
A. Hafizi, M. Rajabzadeh, M. H. Mokari, R. Khalifeh
Summary: The study successfully synthesized an innovative tricationic ionic liquid and found its potential application in carbon dioxide absorption. The research results show that the absorption performance of this ionic liquid at different pressures is affected by absorption temperature and ionic liquid concentration.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Xin He, Yangyan Gao, Yunlei Shi, Xiaowen Zhang, Zhiwu Liang, Riguang Zhang, Xingfei Song, Qinghua Lai, Hertanto Adidharma, Armistead G. Russell, Eric G. Eddings, Weiyang Fei, Fangqin Cheng, Shik Chi Edman Tsang, Jianji Wang, Maohong Fan
Summary: Ionic liquids serve as catalysts to accelerate both the sorption and desorption of carbon dioxide. By adding a small amount of the uniquely designed ionic liquid catalyst to monoethanolamine-based carbon dioxide capture, the desorption rate of carbon dioxide can be significantly increased, reducing energy consumption and avoiding secondary pollution.
Article
Thermodynamics
Amir H. Jalili, Ali Mehdizadeh, Amir N. Ahmadi, Ali T. Zoghi, Mohammad Shokouhi
Summary: The solubility of CO2 and H2S in 1-benzyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Bzmim][Tf2N]) ionic liquid has been measured, and their thermodynamic properties in the ionic liquid have been evaluated. The results show that H2S has a significantly higher solubility than CO2.
JOURNAL OF CHEMICAL THERMODYNAMICS
(2022)
Article
Engineering, Environmental
Chen Zhu, Fangfang Li, Jun Zhang, Lianzheng Zhang, Jun Gao, Yixin Ma, Dongmei Xu, Yinglong Wang
Summary: Ionic liquids with double chemical sites were designed for the separation of phenolic compounds, where both anions and cations play important roles in the separation process. Experimental data was correlated using a NRTL model to provide basic parameters for extraction process design.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Energy & Fuels
A. Ateka, P. Rodriguez-Vega, J. Erena, A. T. Aguayo, J. Bilbao
Summary: This review discusses the synthesis of dimethyl ether (DME) from CO2 and syngas, highlighting the thermodynamics, catalyst preparation, kinetic modeling, reactor design, and reaction strategies. It provides detailed information on the kinetic models proposed in the literature and their corresponding catalyst and reaction conditions. The article also addresses the issue of catalyst deactivation, quantifies coke deposition using various kinetic models, and explores the limitations imposed by the presence of water in the reaction medium. The advantages and limitations of different reactors and the challenges in implementing the direct CO2 to DME synthesis process are also discussed.
Article
Engineering, Chemical
Chao Wang, Yu Zhuang, Yachao Dong, Linlin Liu, Lei Zhang, Jian Du
Summary: Incorporating preconcentration into extractive distillation processes can result in energy conservation. This study develops improved indirect extractive distillation with integrated distillation column (IIED-IDC) processes for separating ternary azeotropic systems.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
