Article
Energy & Fuels
Nawaf M. Alghamdi, S. Mani Sarathy
Summary: In this study, the partial and total oxidation of dimethyl ether (DME) over 5 wt% Rh/Al2O3 catalyst at low temperatures was investigated. The effects of temperature, flow rate, and inlet feed composition on the reactivity were studied. The experimental data provided valuable information for accurate kinetic modeling, reactor design and optimization, and rational catalyst design.
Article
Chemistry, Physical
Mansoor Ali, Jong Jin Kim, Faisal Zafar, Dongming Shen, Xu Wang, Jong Wook Bae
Summary: The synthesis of gasoline-range hydrocarbons was studied using different ZSM-5 zeolites with various morphologies and Fe contents. Nanostructured N-ZSM-5 showed the highest C5+ selectivity and aromatics selectivity, attributed to its larger strong Bronsted acidic sites and smaller crystallite sizes. Fe-impregnated N-ZSM-5 exhibited an enhanced C5+ selectivity and suppressed cracking reactions, resulting in smaller C1-C4 selectivity. However, excessive Fe blocked active acidic sites, leading to lower DME conversion and C5+ selectivity.
Article
Energy & Fuels
Dong Zhang, Ying Huang, Kazuyuki Oshita, Masaki Takaoka, Meng Ying, Zifei Sun, Changdong Sheng
Summary: The study successfully recovered oil from oily sludge using liquefied dimethyl ether (DME) extraction, with the DME/sludge ratio, extraction time, and stirring speed affecting the oil recovery ratio. Compared to traditional methods, DME extraction yielded a higher recovery rate and the recovered oil contained more beneficial components.
Article
Engineering, Environmental
Simone Guffanti, Carlo Giorgio Visconti, Jasper van Kampen, Jurriaan Boon, Gianpiero Groppi
Summary: SEDMES is a promising option to overcome the thermodynamic limitations of conventional DME production processes. The validated model studied the effects of different operating parameters on the thermal behavior and DME yield performances of the reactor. The results show that SEDMES is poorly sensitive to the CO/CO2 ratio and provides larger advantages with increasing CO2 content in the feed.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Multidisciplinary Sciences
Felix M. Kirchberger, Yue Liu, Philipp N. Plessow, Markus Tonigold, Felix Studt, Maricruz Sanchez-Sanchez, Johannes A. Lercher
Summary: The presence of water critically influences the kinetics of methanol autocatalytic conversion to hydrocarbons in acid zeolites. The main reactions at the initiation stage involve hydrogen transfer from methanol and DME to surface methoxy groups, leading to methane and formaldehyde in a 1:1 stoichiometry. The kinetic analysis of CH4 formation rates can be used as a unique quantitative parameter to characterize catalyst activity in the methanol-to-hydrocarbon process.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Energy & Fuels
Maoqi Lu, Zhongguang Fu, Xingkun Yuan, Guojun Sun, Guanying Jia
Summary: The study developed a reduced kinetic mechanism for CH4/DME combustion systems through genetic algorithm iterations, accurately predicting ignition delay times and validating under different conditions, showing a balance between accuracy and computational efficiency in simulating turbulent flames.
Article
Thermodynamics
Song Yang, Ping Sun, Jincheng Feng, Kexin Cui, Chao Wang, Wei Dong, Xiumin Yu, Ye Gu
Summary: The combustion and emission characteristics of a DME/gasoline dual fuel engine were investigated experimentally. Results showed that the dual fuel strategy improved the engine performance and reduced gaseous emissions. The fast evaporation rate and superior low temperature reaction of DME helped to suppress particulate matter emissions.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Geyuan Yin, Bo Xiao, Hao Zhao, Haochen Zhan, Erjiang Hu, Zuohua Huang
Summary: An experiment was conducted to investigate the chemical kinetic effect of dimethyl ether (DME) on ammonia combustion and NO formation in a jet-stirred reactor. The mole fractions of reactants and intermediates were measured under various conditions. The key reactions were identified through pathway and sensitivity analysis. The results showed that NH2 and HO2 played important roles in ammonia oxidation, while reactions like CH3 + NO2 = CH3O + NO and HNO + O2 = NO + HO2 were essential for NO formation.
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
Chemistry, Physical
ShiPing Wei, Cong Li
Summary: The numerical model of DME reforming hydrogen production reaction system was established and solved using COMSOL software. The reforming effect of the spiral heated tube reforming reactor was studied by analyzing the simulation results of temperature field, flow field, and concentration distribution of each component. The effects of reaction conditions and reforming structure on DME conversion, hydrogen yield, and catalytic performance were investigated. The results showed that the helical heating tube DME steam reforming system achieved 88% DME conversion rate, 86.5% hydrogen production rate, and 79.36% thermal efficiency, with a maximum temperature difference within the reaction bed controlled within 80 K, about 30% lower than the traditional reactor.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Thermodynamics
Alessandro Stagni, Steffen Schmitt, Matteo Pelucchi, Alessio Frassoldati, Katharina Kohse-Hoeinghaus, Tiziano Faravelli
Summary: This study experimentally investigated the oxidation behavior of DME in a flow reactor, considering both kinetics and fluid dynamics effects. The results showed that the standard PFR model had substantial deviations in predicting the reactivity and species profiles, especially for lean conditions at low flow rates and intermediate temperatures. The two-dimensional reactive flow model provided better agreement with the experimental data and improved the predictive modeling capability.
COMBUSTION AND FLAME
(2022)
Article
Energy & Fuels
Saeed Sahebdelfar, Parisa Moghimpour Bijani, Fereydoon Yaripour
Summary: The kinetics of deactivation of gamma-alumina catalyst in the dehydration of methanol to dimethyl ether were investigated, revealing a second-order independent deactivation kinetics that accurately fit the experimental data. The activation energies for the main reaction and catalyst deactivation were obtained, with the latter showing a negative value due to reversible partial hydration. At higher temperatures, irreversible sintering of alumina crystallites became the predominant deactivation mechanism.
Article
Chemistry, Multidisciplinary
Hideki Kanda, Daigo Ando, Rintaro Hoshino, Tetsuya Yamamoto, Wahyudiono, Shogo Suzuki, Satoshi Shinohara, Motonobu Goto
Summary: The decellularization of porcine aortic tissue using subcritical DME was successfully conducted without the need for surfactants. Experimental results showed that this method effectively removed cell nuclei and reduced the remaining DNA content below the standard value.
Article
Thermodynamics
Matteo Pelucchi, Steffen Schmitt, Nina Gaiser, Alberto Cuoci, Alessio Frassoldati, Hao Zhang, Alessandro Stagni, Patrick Osswald, Katharina Kohse-Hoeinghaus, Tiziano Faravelli
Summary: This study focuses on the interaction chemistry of DME-O2-NO mixtures in the low- to intermediate-temperature regime, investigating the oxidation behavior of DME in the presence of NO. The research combines experimental data with modeling analysis to study the kinetics of DME/NOx interactions, and assesses the uncertainty of key reactions using a polynomial chaos expansion analysis.
COMBUSTION AND FLAME
(2023)
Article
Energy & Fuels
Yifan Jin, Xin Li, Xin Wang, Zhihao Ma, Xianglin Chu
Summary: The contribution of dimethyl ether (DME) to the ignition delay times (IDTs) of ammonia (NH3) was investigated. The experiments were conducted under different pressure, temperature, equivalence ratio, and NH3/DME mixing ratios. The results showed that the addition of DME decreased the IDTs and promoted the reactivity of NH3. The promoting effect of DME on NH3 ignition was weakened under higher temperature and pressure conditions. An updated mechanism was proposed to explain the promoting effect of DME on NH3 ignition, and the numerical analysis showed that it was primarily due to an increase in the rate of production and concentration of the radical pool, especially the OH radical pool.
Article
Engineering, Environmental
Chenyue Zhang, Zhen Song, Can Jin, Job Nijhuis, Teng Zhou, Timothy Noel, Harald Groeger, Kai Sundmacher, Jan van Hest, Volker Hessel
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Physics, Applied
Bhaskar S. Patil, Alwin S. R. van Kaathoven, Floran J. J. Peeters, Nikolay Cherkasov, Juergen Lang, Qi Wang, Volker Hessel
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Engineering, Chemical
Rohit Chaudhary, Gerard van Rooij, Sirui Li, Qi Wang, Emiel Hensen, Volker Hessel
CHEMICAL ENGINEERING SCIENCE
(2020)
Article
Engineering, Chemical
V. Hessel, M. M. Sarafraz, N. N. Tran
CHEMICAL ENGINEERING SCIENCE
(2020)
Article
Thermodynamics
M. M. Sarafraz, N. N. Tran, N. Pourali, E. V. Rebrov, V. Hessel
ENERGY CONVERSION AND MANAGEMENT
(2020)
Article
Green & Sustainable Science & Technology
Aikaterini Anastasopoulou, Robin Keijzer, Bhaskar Patil, Juergen Lang, Gerard Rooij, Volker Hessel
JOURNAL OF INDUSTRIAL ECOLOGY
(2020)
Article
Physics, Applied
A. Anastasopoulou, R. Keijzer, S. Butala, J. Lang, G. Van Rooij, V Hessel
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Engineering, Chemical
Xintong Ma, Sirui Li, Volker Hessel, Liangliang Lin, Stefan Meskers, Fausto Gallucci
CHEMICAL ENGINEERING SCIENCE
(2020)
Article
Environmental Sciences
Laura Escriva, Ellen Hessel, Susanne Gustafsson, Rob van Spronsen, Magdalena Svanberg, Anna Beronius
ENVIRONMENT INTERNATIONAL
(2020)
Review
Engineering, Chemical
Carlos Ortega, Daria Otyuskaya, Erik-Jan Ras, Luis D. Virla, Gregory S. Patience, Hendrik Dathe
Summary: High-throughput catalyst testing (HTCT) utilizes multiple parallel reactors and can reduce experimental time by two orders of magnitude, decreasing variance and quantifying random errors. This approach requires precise dosing, temperature control, isothermal zone identification, online gas-phase analysis, and a common back pressure regulator for constant pressure maintenance.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Review
Chemistry, Analytical
Shahrooz Rahmati, William Doherty, Arman Amani Babadi, Muhamad Syamim Akmal Che Mansor, Nurhidayatullaili Muhd Julkapli, Volker Hessel, Kostya (Ken) Ostrikov
Summary: The environmental crisis caused by population growth and globalization is a serious concern. Nanoscience and nanotechnology offer innovative solutions for identifying and controlling emerging chemical contaminants. Gold-carbon nanocomposites-based sensors play a key role in detecting, degrading, and removing hazardous pollutants.
Article
Chemistry, Physical
Magdalena Luty-Blocho, Marek Wojnicki, Tomasz Tokarski, Volker Hessel, Krzysztof Fitzner
Summary: The study describes the use of activated carbon fibers as traps for gold nanoparticles and compares the efficiency of gold nanoparticles removal in batch reactor and microreactor system. Results show that the process carried out in the microreactor system is more efficient.
Article
Food Science & Technology
Sandra Budzaki, Natalija Velic, Marta Ostojcic, Marija Stjepanovic, Blanka Bilic Rajs, Zita Seres, Nikola Maravic, Jovana Stanojev, Volker Hessel, Ivica Strelec
Summary: One major challenge in sustainable waste management in the agri-food industry is the conversion of waste into enzyme carriers, which can reduce the problems of existing chemically catalyzed processes and lower the price of immobilized enzymes.
Article
Materials Science, Multidisciplinary
Konrad Wojtaszek, Tomasz Tokarski, Dawid Kutyla, Karolina Kolczyk-Siedlecka, Piotr Zabinski, Edit Csapo, Robert P. Socha, Marc Escriba-Gelonch, Volker Hessel, Marek Wojnicki
Summary: The paper presents research results on synthesizing silver nanoparticles in aqueous solutions and their extraction into the organic phase. The extraction process is most effective using n-hexane > cyclohexane > toluene > chloroform > ethyl acetate. The dielectric constant of the organic phase has a correlation with its ability to extract nanoparticles, with lower dielectric constant leading to higher extractability. The transfer of silver nanoparticles to the organic phase also affects their hydrodynamic radius and particle shape, highlighting the complexity of interfacial processes.
Review
Chemistry, Multidisciplinary
Suresh Sagadevan, Md Zillur Rahman, Estelle Leonard, Dusan Losic, Volker Hessel
Summary: Graphene, a two-dimensional material with a single atomic crystal structure, has the potential to create next-generation devices in various fields due to its excellent properties. Azobenzene (AZO) polymers, with their unique light-induced conformations and structures, are recognized as excellent candidates for a new generation of light-controllable molecular electronics. Combining graphene derivatives and AZO-based polymers could generate hybrid structures with interesting properties.
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)