Article
Green & Sustainable Science & Technology
Hongsheng Dong, Jiaqi Wang, Zhuoxue Xie, Bin Wang, Lunxiang Zhang, Quan Shi
Summary: This review discusses the potential applications of gas hydrates in energy and environmental fields, highlighting their advantages in gas storage, gas separation, wastewater treatment, and other areas. Challenges, limitations, and future directions for each application are also explored in the paper.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Nanoscience & Nanotechnology
Yang Zhao, Mingzhao Yang, Man Li, Hongsheng Dong, Yang Ge, Qingping Li, Lunxiang Zhang, Yu Liu, Lei Yang, Yongchen Song, Jiafei Zhao
Summary: Efficient gas enrichment methods are crucial for the storage, transportation, and sequestration of clean energy and carbon dioxide. A novel recyclable hydrate promoter has been developed, which effectively reduces the induction time of methane hydrate formation, increases gas storage capacity, and inhibits foam during hydrate decomposition. Additionally, this promoter enhances CO2 storage capacity and shows potential for sequestering CO2 in the form of gas hydrate under the seafloor.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Changrui Shi, Shuai Wang, Huiquan Liu, Lunxiang Zhang, Mingjun Yang, Yongchen Song, Jiafei Zhao, Zheng Ling
Summary: This study presents a simple and scalable strategy to produce aerogels as efficient promoters for methane hydrate formation. The as-made aerogels significantly improve the formation kinetics of methane hydrate and show high storage capacity and cycling stability. The study also investigates the molecular mechanisms behind the enhanced formation of methane hydrate through the interaction between oxygen-containing surface functional groups and water molecules.
Article
Engineering, Environmental
Gaurav Bhattacharjee, Hari Prakash Veluswamy, Asheesh Kumar, Praveen Linga
Summary: Solidified Natural Gas (SNG) technology provides a compact and safe option for large-scale natural gas storage. Introducing thermodynamic promoters like THF into the classical methane-water system enables rapid gas uptake at moderate pressure and temperature. The study compares the stability of cylindrical mixed methane-THF (sII) and pure methane (sI) hydrate pellets, with results showing exceptional stability of sII hydrates and significant gas evolution from sI hydrates stored at different temperatures. Long-term stability testing of methane-THF (sII) hydrate pellets produced using fresh and seawater demonstrates the commercial viability of SNG technology.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Byeonggwan Lee, Kyuchul Shin, Sanehiro Muromachi, Igor L. Moudrakovski, Christopher I. Ratcliffe, John A. Ripmeester
Summary: Antifreezes such as methanol and ammonia can enhance methane storage in binary clathrate hydrates like THF and TBAB. Methanol acts as a catalyst for methane hydrate formation and induces TBAB hydrates to form an orthorhombic structure suitable for methane storage. These findings suggest that methanol could play a crucial role in hydrate-based methane storage systems.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Green & Sustainable Science & Technology
Pengfei Wang, Ying Teng, Jinlong Zhu, Wancheng Bao, Songbai Han, Yun Li, Yusheng Zhao, Heping Xie
Summary: The synergy between metal-organic frameworks (MOFs) and gas hydrates is a potential technology for CH4 storage and CO2 separation. This review summarizes the structural characteristics of MOFs and gas hydrates and analyzes their effects on hydrate formation, thermodynamics, kinetics, and gas storage capacity. The paper also highlights the research progress and challenges associated with MOF-hydrate synergy and their impact on CH4 storage and CO2 separation.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Lanyun Wang, Xiaoran Lu, Yongliang Xu
Summary: This study found that adding 5-10% RNS-A can shorten the induction time during CO2 hydrate formation, and 6% RNS-A showed the best gas consumption and reaction time, making it the optimal concentration for CO2 capture and sequestration.
Article
Engineering, Environmental
Yu Feng, Yang Zhao, Yuze Han, Yanzhen Liu, Lunxiang Zhang, Jiafei Zhao, Lei Yang, Yongchen Song
Summary: The formation and dissociation behavior of CO2 hydrates in the presence of clay particles were investigated using low-field nuclear magnetic resonance. It was found that montmorillonite particles significantly promoted the conversion of water into hydrate, while illite particles had a weaker promoting effect. According to the DLVO theory, the total interaction potential between montmorillonite particles was much higher than that between illite particles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jyoti Shanker Pandey, Jesper Lundtoft Hansen, Nicolas von Solms
Summary: This study investigates the effects of different types of promoters on the adsorption capacity of hydrogen-rich natural gas hydrates and suggests that promoter selection should be based on the hydrogen gas mol% in the mixture. The results reveal that kinetic promoters are effective at low hydrogen concentrations, while thermodynamic promoters are effective at high hydrogen concentrations. Furthermore, the study emphasizes the influence of the CH4/C2H6 mixture on formation kinetics and crystal structure, and the impact of hydrogen mol% on H-2 cage occupancy.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Seokyoon Moon, Yunseok Lee, Dongju Seo, Seungin Lee, Sujin Hong, Yun-Ho Ahn, Youngjune Park
Summary: The blue hydrogen production process combines traditional fossil fuel production methods with carbon capture and storage technologies to reduce CO2 emissions, providing a faster alternative to green hydrogen production. Hydrogen-natural gas blends are proposed as a practical near-term option, with clathrate hydrates being considered a feasible way to store the blends. The study investigated the critical hydrogen concentration and formation kinetic patterns of the HNGB hydrates, providing practical insights for developing storage media and transportation systems in the near future.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Energy & Fuels
Yulia F. Chirkova, Andrey S. Stoporev, Roman S. Pavelyev, Mikhail A. Varfolomeev
Summary: In recent years, interest in gas hydrates has grown due to their potential as an energy source and environmentally friendly alternative to storing and transporting natural gas. This study compared the effectiveness of sulfonated castor oil (SCO) and sodium dodecyl sulfate (SDS) as promoting reagents in the formation and decomposition of methane and methane-propane hydrates in a porous medium. The results showed that SCO significantly improved the water conversion rate in methane hydrates due to enhanced mass transfer in the presence of surfactants, while the effect on methane-propane hydrates was limited. Both SCO and SDS accelerated hydrate formation, but SCO required less supercooling. These findings suggest that SCO is comparable to SDS in promoting activity in porous media with varying water saturation.
Article
Energy & Fuels
Sai Kiran Burla, Bhavya Tulluru, Pinnelli S. R. Prasad
Summary: Amino acids are important additives in gas-hydrate based technology, playing a dual role as inhibitors or promoters depending on concentration. The nature of the side chain and its length are critical factors, with different amino acids affecting CO2 and CH4 hydrates differently.
Article
Engineering, Environmental
Chanjuan Liu, Zhen Long, Yong He, Xuebing Zhou, Deqing Liang
Summary: This study investigates the growth and storage performance of CO2 hydrates under different conditions, and finds that the water film on silica gel particles is the main factor affecting gas storage efficiency. Silica gels with 30% water saturation can achieve the highest CO2 storage capacity. In addition, it is found that SDS can increase the CO2 storage volume ratio under high water saturation and reduce the volume ratio decay in repeated tests.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Engineering, Environmental
Ye Zhang, Gaurav Bhattacharjee, Rajnish Kumar, Praveen Linga
Summary: This article focuses on the current state of solidified hydrogen storage via clathrate hydrates and comprehensively evaluates the properties and performances of different H-2-containing hydrate systems. The controversial issues in hydrogen hydrate research, such as multiple cage occupancy by H-2 molecules and the tuning effect, are also elucidated. Finally, the challenges, limitations, and future opportunities for hydrate-based hydrogen storage are identified.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Energy & Fuels
Jianquan Lin, Qian Zhao, Haotian Huang, Hongzhi Mao, Yexin Liu, Yimin Xiao
Summary: Thermochemical energy storage (TCES) systems are an advanced technology that helps address the mismatch between the availability and consumption of solar energy. Solid/gas sorption systems utilizing salt hydrates are the most commonly used among TCES systems. This study establishes a classification of salt hydrates for TCES systems and discusses the properties of materials, suitable reactor types, applications, and system optimization based on material characteristics. Additionally, it comprehensively reviews TCES applications based on salt hydrates and discusses directions for target-oriented design and optimization of TCES systems.
Article
Chemistry, Physical
Hamid Rajaei, Feridun Esmaeilzadeh, Dariush Mowla
Summary: Different catalysts with varying acidic strengths of zeolite were synthesized and tested, with the catalyst of a small Si/Al ratio of 32 showing the best isomerization performance. Operating conditions of 375 degrees C temperature, hydrogen partial pressure of 2.6, and weight hourly space velocity of 3.5 h(-1) were found to be the optimum for the xylene isomerization process.
Article
Chemistry, Physical
Ali Rasoolzadeh, Ali Bakhtyari, Mohammad Reza Sedghamiz, Jafar Javanmardi, Khashayar Nasrifar, Amir H. Mohammadi
Summary: A rigorous predictive model for calculating water activity in the presence of ionic liquids (ILs) is proposed and applied in the prediction of gas hydrate stability conditions. The model accounts for both short-range interactions and long-range electrostatic interactions and has been validated with data, demonstrating its superiority.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Hooman Afsar, Fereshteh Samadi, Feridun Esmaeilzadeh, Abolhasan Ameri
Summary: This study investigates the matrix acidizing of sandstone wells using a hydrochloric acid/hydrofluoric acid/additives mixture through mathematical modeling. The non-Newtonian behavior of the acid solution in porous media was studied, and it was concluded that acid with high shear-thinning behavior is more promising for field operations due to deep penetration. The model developed in this study can reproduce different types of acid/rock systems and calculate the skin factor to study acidizing performance in the damaged zone.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Abbas Elhambakhsh, Seyedeh Maryam Mousavi, Mohammad Noor Ghasemi, Feridun Esmaeilzadeh, Peyman Keshavarz, Khadijeh Asadi, Ramin Khalifeh Haghighi, Xiaopo Wang
Summary: CeO2/SiO2/TiO2 nanocomposite was synthesized and used for high-pressure CO2 absorption. The addition of CeO2/SiO2/TiO2 in different nanofluids was found to significantly enhance CO2 absorption, and the stability of the nanocomposite also affected the CO2 absorption performance.
Article
Environmental Sciences
Mohammad Noor Ghasemi, Feridun Esmaeilzadeh, Dariush Mowla, Abbas Elhambakhsh
Summary: In this study, sub/supercritical water oxidation (SCWO) was used to degrade methyldiethanolamine (MDEA). The impact of various operating parameters on MDEA degradation was investigated and optimized using the response surface method. The results showed that under optimal conditions, a maximum of 97.4% MDEA degradation was achieved. HPLC analysis revealed negligible amounts of formic acid and nitrous acid in the solution, indicating the effectiveness of the SCWO process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Shiva Ramezanzadeh, Feridun Esmaeilzadeh, Dariush Mowla, Abbas Elhambakhsh, Mansour Kanani
Summary: In this study, the supercritical water oxidation (SCWO) of dichlorvos in agricultural wastewater was carried out using a batch reactor. The impact of four operating parameters on dichlorvos removal was optimized and the intermediate substances generated during the degradation process were identified. Molecular dynamics simulation was also performed to show the reaction path and products obtained in each step of dichlorvos removal, and good coordination with the experimental results was observed.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Thermodynamics
Xiaopo Wang, Heyu Jia, Xiaojie Wang, Feridun Esmaeilzadeh
Summary: The liquid densities and viscosities of ethyl caprate/1-propanol mixture at different molar fractions were investigated in this study. Experimental measurements were carried out and the results were fitted with mathematical equations. The comparison showed that the deviation between experimental and calculated values was small.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2022)
Article
Energy & Fuels
Hooman Afsar, Fereshteh Samadi, Feridun Esmaeilzadeh, Abolhasan Ameri
Summary: This study presents a 3D mathematical model of sandstone matrix acidizing with consideration of non-Newtonian fluids and temperature effects. The research reveals that dissolution patterns in sandstone acidizing are significantly influenced by temperature, with dissolution rates increasing exponentially with reservoir temperature.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Aliakbar Golchehre, Shapour Taghipour, Feridun Esmaeilzadeh
Summary: This study investigates the application of supercritical fluid technology for catalyst activation and finds the optimum operating conditions for Palladium-based spent catalysts. The results show that both supercritical fluid and thermal methods are effective for catalyst regeneration. Through various analyses, the efficiency of these methods for catalyst activation is confirmed.
SEPARATION SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Hamid Esfandyari, Mohammad Sarmadivaleh, Feridun Esmaeilzadeh, Muhammad Ali, Stefan Iglauer, Alireza Keshavarz
Summary: Global energy demand is rising, and the disadvantages of extensive fossil fuel use are becoming more evident. Hydrogen (H-2) is considered a viable alternative energy source for industries. However, its compressibility and volatility pose challenges in transport and storage. This study evaluates the wettability and interfacial tension (IFT) of H-2 in different subsurface formations and fluid systems, and explores the impact of mineral composition on the storage capacity of H-2 in subsurface reservoirs. The results highlight the importance of mineral composition in determining wettability and IFT, and provide insights for estimating geo-storage capacity based on rock mineralogy.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Mohammadreza Askari, Ahmad Jafari, Feridun Esmaeilzadeh, Mohammad Khorram, Amir H. Mohammadi
Summary: In this study, the kinetics of supercritical fluid extraction of lipid from Nannochloropsis oculata using supercritical CO2 were investigated. The effects of temperature, pressure, and the co-solvent n-hexane were studied. The results show that temperature and pressure have opposite effects on the kinetic constant of lipid extraction, while the addition of n-hexane improves both the yield and the rate of extraction.
Article
Chemistry, Physical
Alireza Ghanaatian, Abbas Elhambakhsh, Ali Bakhtyari, Mohammad Noor Ghasemi, Feridun Esmaeilzadeh, G. Reza Vakili-Nezhaad
Summary: In this study, interfacial tension (IFT) of the CO2/polyethylene glycol (PEG) (40 wt.%)+water (60 wt.%) system was measured and correlated using a theoretical model. The presence of SiO2 nanoparticles (NPs) was found to decrease the IFT, with increasing pressure and NPs concentration enhancing this effect. However, increasing temperature resulted in an increase in IFT. Moreover, the addition of NPs coated with polyvinyl alcohol (PVA) further decreased the IFT.
SURFACES AND INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Mohammad Fereidooni, Feridun Esmaeilzadeh, Ali Zandifar
Summary: CeO2/ZnO photocatalyst was synthesized using a sono-photochemical process and showed excellent degradation performance in removing methylene blue from water. The synthesized catalyst exhibited stable and reusable properties, with only a slight decrease in efficiency after multiple cycles.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Thermodynamics
Khashayar Nasrifar, Jafar Javanmardi, Ali Rasoolzadeh, Amin Shoushtari
Summary: This work investigates the equilibrium hydrate disappearance conditions of methane + propane/water and successfully replicates the natural gas/water system. The experiments confirm that the presence of propane significantly promotes the disappearance of methane hydrate. Additionally, a statistical model is used to predict the experimental data accurately.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2022)
Article
Energy & Fuels
Hossein Ghorbani, Samira Heidari, Mohamad Amin Hemmati, Feridun Esmaeilzadeh
Summary: The influence of flue gas composition (including O-2, CO2, H2O, CO, and NOx) on flame characteristics and pollutant emissions was investigated. A set of equations based on Gibbs free energy and component balance was developed to determine the volume percentage of flue gas components. The study confirmed the validity of the model using field data from a fluid catalytic cracking process, with an average absolute relative deviation of less than 2%. The results showed that pressure and temperature affected the volume percentage of flue gas components, with increased pressure reducing the formation of NOx and CO2 gases and increasing the formation of CO gas, and higher temperature increasing the amount of NOx and CO gases while reducing the volume percentage of CO2 gas.
INTERNATIONAL JOURNAL OF OIL GAS AND COAL TECHNOLOGY
(2022)
