Article
Engineering, Environmental
Ana Pilar Melendo, Roberto Berbes, Sofia T. Blanco, Javier Fernandez
Summary: The CO2/impurities cocapture in CCS technology is beneficial in reducing purification costs and preventing pollutant emissions into the atmosphere. In this study, the viability of transporting and storing non-purified flue gas containing impurities such as O2 or NO alongside CO2 from oxy-fuel combustion of biomass and other processes was assessed. Experimental data on density, vapor-liquid equilibrium, and sound speed of CO2 + O2 and CO2 + NO mixtures were obtained under CCS conditions. The calculated parameters and conclusions indicate that O2 and NO have negative effects on the transport and storage steps but the impact of NO at the investigated concentrations is negligible.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Chemical
Carlos Alberto Augusto Sanchez Quinones, Vicente Ismael Agueda Mate, Jose Antonio Delgado Dobladez, Silvia Alvarez-Torrellas, Marcos Larriba, Maria Martin-Martinez
Summary: In order to fulfill the Paris Agreement, CO2 capture technologies must be developed to reduce Green House Gas emissions. Adsorption is considered a viable technology due to its mild conditions. Selective sorbents with high CO2 adsorption capacities are needed. This study used branched poly-ethylenimines (PEI) with different average molecular weights, agglomerated with silica at different weight percentages. Adsorption was measured and kinetic parameters were estimated. The results showed that the materials produced were selective and had potential use in adsorption processes, with the sample of the lowest average molecular weight having the highest adsorption capacity.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Environmental
Beatriz Gimeno, Inmaculada Velasco, Javier Fernandez, Sofia T. Blanco
Summary: The impact of CO2-rich mixtures containing SO2 and CO impurities on the transport, injection, and storage of CCS technology was evaluated using experimental data. It was found that in the cocapture mixture, SO2 can overcome or compensate for the negative effect of CO, making it a favorable fluid for CCS, while the negative effect of CO predominates in the emissions mixture. The study did not consider differences in chemical reactivity due to the impurities.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Review
Energy & Fuels
Ahmad Amirhilmi A. Razak, Ismail M. Saaid, Muhammad Aslam Md. Yusof, Norhafizuddin Husein, M. Fakrumie Zaidin, Khalik Mohamad Sabil
Summary: The deployment of CCUS technologies to mitigate climate change requires comprehensive transformational changes. This manuscript focuses on impurity standards and limitations that ensure long-term project feasibility. There is a need for guidance on purity analysis prior to carbon dioxide capture, shipment, and storage. The manuscript discusses previous research and best practices to establish standards for acceptable impurities in the stream and their effects on the CCUS system.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2023)
Article
Energy & Fuels
Cheng Chen, Jun Xia, Hamid Bahai
Summary: Underground H-2 storage is a promising technology and using CO2 as a cushion gas enables the implementation. Molecular dynamics simulations are performed to predict the interfacial properties of CO2, H-2, and their mixtures. The results show that the interaction of CO2 with H2O and hydrophilic silica is stronger, and temperature and mixture composition affect the interfacial tension and surface adsorption.
Article
Engineering, Chemical
Cecilia I. A. V. Santos, Marisa C. F. Barros, Maria P. R. T. Faro, Valentina Shevtsova, Ana C. F. Ribeiro
Summary: A new experimental high-pressure setup, based on the Taylor dispersion method and using an FTIR detector, was designed and optimized to measure diffusion coefficients in supercritical fluids. The obtained diffusion coefficients were in excellent agreement with the literature data, and the dependence of D-12 on temperature, pressure, and solvent density was examined.
Article
Chemistry, Physical
Yi-Ming Gu, Hai-Feng Qi, Tan-Tan Sun, Xiao-Wei Liu, Salman Qadir, Tian-Jun Sun, De-Fu Li, Sheng-Sheng Zhao, David Fairen-Jimenez, Shu-Dong Wang
Summary: This study reports the development of a stable and low-cost adsorbent, MIL-160(Al), with a high acetylene volumetric capacity and selectivity. By combining experimental and theoretical methods, the synergistic interactions driven by the hydrogen bonding of C2H2-MOF and the electrostatic interactions between C2H molecules in the nanoscale pores were revealed.
CHEMISTRY OF MATERIALS
(2022)
Review
Energy & Fuels
Nasiru Salahu Muhammed, Md Bashirul Haq, Dhafer Abdullah Al Shehri, Amir Al-Ahmed, Mohammad Mizanur Rahman, Ehsan Zaman, Stefan Iglauer
Summary: The future of hydrogen depends on large-scale storage, which can be provided by geological formations. Depleted natural gas reservoirs are the most cost-effective and secure solutions, but there is a lack of thorough understanding of this technology. This work aims to provide a comprehensive insight into hydrogen storage in depleted gas reservoirs.
Article
Green & Sustainable Science & Technology
Tahamina Khanam, David M. Reiner
Summary: This study investigates the gaps between knowledge and willingness, willingness and performance, and knowledge and performance among 2137 British residents in relation to carbon dioxide emissions reduction and emerging technologies. The findings reveal that while the respondents have good knowledge about climate change and carbon issues, there is a disparity between their willingness and actual performance. Policymakers and researchers need to address this gap and develop comprehensive plans to meet their emissions reduction targets.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
George Truc, Nejat Rahmanian, Mahboubeh Pishnamazi
Summary: This study evaluates the equations of state for predicting thermodynamic properties, comparing Peng-Robinson and Soave-Redlich-Kwong, and utilizing machine learning methods such as artificial neural networks. The combination of machine learning with equations of state leads to lower predictive errors and provides valuable insight for dealing with engineering problems.
Review
Energy & Fuels
A. M. Aneesh, Ashish Alex Sam
Summary: Carbon capture, utilization, and storage (CCUS) technologies, especially cryogenic carbon capture (CCC) methods, are effective in reducing CO2 emissions from fossil fuel power plants by achieving high CO2 recovery and purity. CCC processes can be easily retrofitted and handle gas stream impurities. However, continuous removal of dry ice into storage tanks remains a challenge.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Neil Grant, Ajay Gambhir, Shivika Mittal, Chris Greig, Alexandre C. Koberle
Summary: Most low-carbon scenarios overestimate the role of carbon capture and storage (CCS) in deep decarbonisation, particularly in key regions such as China and India, due to the assumption of abundant CO2 storage. Limited CO2 storage leads to faster emission reductions and greater reliance on renewable energy.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Chemistry, Physical
Jinwei Yan, Ondrej Toth, Wan Xu, Xiao-Di Liu, Eugene Gregoryanz, Philip Dalladay-Simpson, Zeming Qi, Shiyu Xie, Federico Gorelli, Roman Martonak, Mario Santoro
Summary: Research has shown that under high pressure, the polymer structure formed by carbon disulfide undergoes complex evolution, including the increase in C4/C3 ratio, partial reversion of structure, and partial disproportionation reaction.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Thermodynamics
Haolei Yang, Xiaoqiang Bian, Lianguo Wang
Summary: A new association model, CPA-MHV1, combining the SRK equation of state with the CPA equation based on Michelsen's improved Huron-Vidal mixing rule, is developed. The model is used to investigate the vapor-liquid equilibrium of binary mixtures involving CH4, CO2, and H2O, as well as ternary mixtures containing NaCl. The results show that considering the solvation between CO2 and H2O yields the best performance, while CH4 with a pseudo-association scheme has the highest comprehensive prediction performance.
FLUID PHASE EQUILIBRIA
(2024)
Review
Chemistry, Multidisciplinary
Tianjun Zhang, Andrew G. Walsh, Jihong Yu, Peng Zhang
Summary: This review discusses the development and application of single-atom alloy catalysts, highlighting structural analysis at the atomic scale using microscopy and spectroscopy tools, electronic properties research through X-ray spectroscopy techniques and quantum calculations, and catalytic activity in representative reactions. It also proposes future perspectives for single-atom alloy catalysts from structural, electronic, and reactivity aspects.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Thermodynamics
David Lapena, Laura Lomba, Manuela Artal, Carlos Lafuente, Beatriz Giner
JOURNAL OF CHEMICAL THERMODYNAMICS
(2019)
Article
Chemistry, Physical
Ignacio Delso, Carlos Lafuente, Jose Munoz-Embid, Manuela Artal
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Energy & Fuels
Beatriz Gimeno, Sara Martinez-Casasnovas, Inmaculada Velasco, Sofia T. Blanco, Javier Fernandez
Article
Chemistry, Applied
Noelia Lopez, Ignacio Delso, David Matute, Carlos Lafuente, Manuela Artal
Article
Chemistry, Physical
Raquel Diaz-Ruiz, Fernando Bergua, Jose Munoz-Embid, Carlos Lafuente, Manuela Artal
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Chemistry, Applied
Fernando Bergua, Ignacio Delso, Jose Munoz-Embid, Carlos Lafuente, Manuela Artal
Summary: This study characterized two deep eutectic solvents using NMR techniques to analyze their structure and properties, and evaluated their thermophysical properties at different temperatures. It was found that one of the solvents had the most compact fluid structure, and the solubility of quercetin in these deep eutectic solvents was significantly higher than in water.
Article
Engineering, Environmental
Fernando Bergua, Miguel Castro, Jose Munoz-Embid, Carlos Lafuente, Manuela Artal
Summary: The study investigated the removal of drugs in aqueous ecosystems through liquid-liquid extraction, exploring new eco-sustainable procedures and finding the most efficient extraction method using solvent mixtures. Results showed varying levels of hydrophobicity among the drugs, highlighting the risks associated with drug contamination in water ecosystems.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Beatriz Gimeno, Inmaculada Velasco, Javier Fernandez, Sofia T. Blanco
Summary: The impact of CO2-rich mixtures containing SO2 and CO impurities on the transport, injection, and storage of CCS technology was evaluated using experimental data. It was found that in the cocapture mixture, SO2 can overcome or compensate for the negative effect of CO, making it a favorable fluid for CCS, while the negative effect of CO predominates in the emissions mixture. The study did not consider differences in chemical reactivity due to the impurities.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Chemistry, Physical
Raouia Abidi, Manuela Artal, Monia Hichri, Carlos Lafuente
Summary: This study reports the properties of binary mixtures of methyl levulinate with various n-alkanols at different temperatures, and correlates the excess properties using the Redlich-Kister equation. The results show a regular trend of the impact of different alkanols on excess properties, and the chain length of the alkyl group also influences the thermophysical behavior of the systems.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
Laura Lomba, Federica Tucciarone, Beatriz Giner, Manuela Artal, Carlos Lafuente
Summary: The study of deep eutectic solvents has increased recently due to their high solubility and lower toxicity compared to organic solvents. This study focused on deep eutectic solvents formed by choline chloride and resorcinol, and their mixtures with water. Various physicochemical properties were analyzed at atmospheric pressure and within a temperature range of 283.15-338.15 K. The effects of temperature and water inclusion were evaluated, showing a linear correlation between certain properties and temperature. The inclusion of water had a significant impact on transport properties, viscosity, and electrical conductivity.
FLUID PHASE EQUILIBRIA
(2022)
Article
Chemistry, Physical
Fernando Bergua, Miguel Castro, Jose Munoz-Embid, Carlos Lafuente, Manuela Artal
Summary: This study thermophysically characterized eutectic mixtures formed by L-menthol and medium chain fatty acids, and investigated their polymorphic behavior. These mixtures may be suitable solvents for liquid-liquid extractions.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Fernando Bergua, Miguel Castro, Carlos Lafuente, Manuela Artal
Summary: The substitution of conventional organic solvents with less environmental impact is important in green chemistry. This study investigated the eutectic hydrophobic thymol + l-menthol system and analyzed its properties and behavior. The results showed that the system can dissolve drugs and remove them from contaminated water, making it a potentially useful solvent in liquid-liquid extraction processes.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Environmental
Ana Pilar Melendo, Roberto Berbes, Sofia T. Blanco, Javier Fernandez
Summary: The CO2/impurities cocapture in CCS technology is beneficial in reducing purification costs and preventing pollutant emissions into the atmosphere. In this study, the viability of transporting and storing non-purified flue gas containing impurities such as O2 or NO alongside CO2 from oxy-fuel combustion of biomass and other processes was assessed. Experimental data on density, vapor-liquid equilibrium, and sound speed of CO2 + O2 and CO2 + NO mixtures were obtained under CCS conditions. The calculated parameters and conclusions indicate that O2 and NO have negative effects on the transport and storage steps but the impact of NO at the investigated concentrations is negligible.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Chemistry, Physical
Victor Hernandez-Serrano, Jose Munoz-Embid, Fernando Bergua, Carlos Lafuente, Manuela Artal
Summary: One of the basic principles of green chemistry is to find less harmful alternative solvents. This study provides density data for two hydrophilic deep eutectic solvents (choline chloride + ethylene glycol or glycerol) and two hydrophobic eutectic solvents (camphor + thymol or menthol) at various pressures and temperatures. The Tait equation of state and the PC-SAFT equation of state are used to correlate the data and calculate derived properties. The results show that the hydrophilic solvents are more compact and exhibit abnormal thermal behavior.
JOURNAL OF MOLECULAR LIQUIDS
(2023)