Review
Chemistry, Multidisciplinary
Ihtisham Ul Haq, Ali Qasim, Bhajan Lal, Dzulkarnain B. Zaini, Khor Siak Foo, Muhammad Mubashir, Kuan Shiong Khoo, Dai-Viet N. Vo, Eric Leroy, Pau Loke Show
Summary: The formation of gas hydrates is a significant issue in oil and gas pipelines, as they cause blockage and disrupt normal flow. Injecting ionic liquids as hydrate inhibitors is a solution, and imidazolium-based ionic liquids have been found effective. These inhibitors act as thermodynamic inhibitors, hydrate inhibitors, and anti-agglomerates.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
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)
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
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
Energy & Fuels
O. S. Gaidukova, V. V. Dorokhov, S. Y. Misyura, V. S. Morozov, N. E. Shlegel, P. A. Strizhak
Summary: The dissociation and combustion of methane hydrate samples were experimentally studied under different thermal conditions. The synergistic effects of simultaneously dissociating methane and carbon dioxide hydrates were analyzed. It was found that ignition of methane hydrate granules was faster than tablets, and increasing the combustion chamber temperature improved the ignition performance of tablets.
Article
Chemistry, Physical
Ihtisham Ul Haq, Bhajan Lal, Dzulkarnain B. Zaini
Summary: The thermodynamic hydrate inhibition behavior of two ammonium based ionic liquids (AIL) and their mixtures with methanol for CO2 hydrates was studied. The results show that TMABF(4) and TMABF(4) + methanol exhibit higher thermodynamic hydrate inhibition effect compared to TEABF(4), indicating their potential application in flow assurance.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Yue Zhang, Zhi Li, Xiaodeng Yang, Tianduo Li
Summary: In recent years, the study of natural polymer products, such as methane hydrate inhibitors, has gained increasing attention in scientific research. This study successfully synthesized four chitosan derivatives and compared their methane hydrate inhibition effects with chitosan (CS) and carboxymethyl chitosan (CMCS). It was found that chitosan with high hydrophobicity effectively prevented the formation of methane hydrates, while the inhibition effect of CMCS could be improved by introducing specific chemical groups. This work provides inspiration for the further development of efficient and environmentally friendly kinetic hydrate inhibitors.
Article
Geosciences, Multidisciplinary
Christopher Schmidt, Shubhangi Gupta, Lars Rupke, Ewa Burwicz-Galerne, Ebbe H. Hartz
Summary: Gas hydrate recycling is a cyclic process involving gas hydrate melting, free gas nozzling through the hydrate layer, formation of a new gas hydrate layer, and fast uninhibited growth of a new hydrate layer. High hydrate saturations of about 80% can be attained purely through physical, burial-driven recycling of gas hydrates.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Environmental Sciences
Zhiwei Zhu, Yuncheng Cao, Zihan Zheng, Nengyou Wu, Duofu Chen
Summary: This study applied the van der Waals-Platteeuw model to investigate the formation of CH4-H-2 hydrates in marine serpentinization environments, taking into account the effects of salinity. The model accurately predicted the three-phase equilibrium temperature and pressure for CH4-H-2 hydrates in pure water and provided theoretical insights for gas hydrate research in areas with marine serpentinization.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Energy & Fuels
Parisa Naeiji, Mengdi Pan, Manja Luzi-Helbing, Saman Alavi, Judith M. Schicks
Summary: A study was conducted to investigate the dissociation behavior of methane hydrates under different temperature and pressure conditions. Both experimental and simulated data showed that the behavior differed above and below the freezing point of water. At temperatures near or below freezing, CH4 hydrates exhibited self-preservation behaviors due to the formation of a quasi-liquid or amorphous phase at the outer layers of the hydrate crystal. Above the freezing point, dissociation appeared to initiate at the surface of the hydrate phase.
Article
Energy & Fuels
Lanyun Wang, Yuan Yang, Yan Wang, Yongliang Xu, Yao Li, Jianping Wei, Xiaodong Feng, Kun Zhang
Summary: The slow formation rate and low storage capacity of gas hydrates, as well as the harsh conditions and contaminating promoters, pose major challenges to the application of carbon capture and storage (CCS) technology based on hydrate formation. In this study, three types of graphene nanoparticles (nonfunctionalized graphene, graphene oxide, and amino graphene) were tested as additives to accelerate CO2 and CH4 hydrate formation. The results showed that nonfunctionalized graphene promoted the thermodynamics of CO2 hydrate formation, while graphene oxide and amino graphene had no effect or even inhibited the formation. However, graphene oxide and amino graphene effectively enhanced gas consumption. Overall, nonfunctionalized graphene shortened the induction time, while graphene oxide and amino graphene showed potential as additives to improve gas consumption. The presence of oxidized and amine groups was found to inhibit gas hydrate nucleation.
Article
Energy & Fuels
Shamil E. Gainullin, Abdolreza Farhadian, Polina Y. Kazakova, Matvei E. Semenov, Yulia F. Chirkova, Atousa Heydari, Roman S. Pavelyev, Mikhail A. Varfolomeev
Summary: Novel amino acid derivatives (ACDs) were developed as efficient promoters for methane hydrate formation and recovery, exhibiting superior kinetics compared to anionic surfactants without foaming. ACD5 achieved the highest promotion effect in distilled water, increasing the water-to-hydrate conversion from 39.6% to 94.3%, exceeding sodium dodecyl sulfate (SDS). ACDs also showed higher promotion activity than SDS in salt water, making seawater a cost-effective alternative for methane hydrate production.
Article
Energy & Fuels
Zhixue Sun, Yifan Yin, Yuqi Wu, Zhilei Sun, Linqi Zhu, Yuting Zhan, Vahid Niasar, Senyou An
Summary: The formation and dissociation of hydrate at the pore scale can be qualitatively observed using μ-CT X-ray imaging, but a quantitative criterion for hydrate pattern is lacking in the literature. This study fills this research gap by generating numerically-simulated sediments with specific hydrate patterns and accurate saturation levels. A quantitative criterion for microscopic classification of hydrates based on pore and hydrate topology was proposed. The study also analyzed the 3D distribution and dynamic evolution of hydrate, as well as the variation of permeability and tortuosity under different saturation levels.
Review
Energy & Fuels
Saeid Sinehbaghizadeh, Agus Saptoro, Sepideh Amjad-Iranagh, Parisa Naeiji, Angnes Ngieng Tze Tiong, Amir H. Mohammadi
Summary: Clathrate hydrates, or gas hydrates, have gained global attention for their potential use in sustainable technologies. Understanding the phenomena associated with gas hydrates is crucial for their industrial applications and the development of green technologies. Molecular dynamics simulations have been widely used to analyze the physical movements of molecules and the evolution of atomic positions in gas hydrates.
Article
Chemistry, Physical
Sana Yaqub, Hay Thi Ko Ko, Bhajan Lal, Muhammad Murtaza, Cornelius B. Bavoh
Summary: This study evaluated the inhibitory effect of synergic materials consisting of biopolymers and amino acid on methane hydrates. The results showed that the combination of glycine and xanthan gum delayed the induction time and reduced the formation rate of hydrates.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Yu Wang, Tee Yong Goh, Peter Goodrich, Mert Atilhan, Majeda Khraisheh, David Rooney, Jillian Thompson, Johan Jacquemin
ARABIAN JOURNAL OF CHEMISTRY
(2020)
Review
Chemistry, Physical
Yousef A. Elhamarnah, Mustafa Nasser, Hazim Qiblawey, Abdelbaki Benamor, Mert Atilhan, Santigo Aparicio
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Engineering, Chemical
Tausif Altamash, Abdulkarem I. Amhamed, Santiago Aparicio, Mert Atilhan
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Article
Chemistry, Applied
Ruh Ullah, Hasmukh Patel, Santiago Aparicio, Cafer T. Yavuz, Mert Atilhan
MICROPOROUS AND MESOPOROUS MATERIALS
(2019)
Article
Biochemistry & Molecular Biology
Abdukarem Amhamed, Mert Atilhan, Golibjon Berdiyorov
Article
Chemistry, Physical
Mert Atilhan, Luciano T. Costa, Santiago Aparicio
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Chemistry, Physical
Rafael Alcalde, Alberto Gutierrez, Mert Atilhan, Santiago Aparicio
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Chemistry, Physical
J. L. Trenzado, A. Gutierrez, R. Alcalde, M. Atilhan, S. Aparicio
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Biochemistry & Molecular Biology
Mert Atilhan, Tausif Altamash, Santiago Aparicio
Article
Chemistry, Physical
J. L. Trenzado, S. Rozas, R. Alcalde, M. Atilhan, S. Aparicio
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Chemistry, Physical
Sara Rozas, Mert Atilhan, Santiago Aparicio
JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Chemistry, Physical
Alberto Gutierrez, Mert Atilhan, Santiago Aparicio
JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Engineering, Chemical
Alberto Gutierrez, Rafael Alcalde, Mert Atilhan, Santiago Aparicio
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Physical
Sara Rozas, Mert Atilhan, Santiago Aparicio
JOURNAL OF PHYSICAL CHEMISTRY B
(2020)
Article
Chemistry, Physical
Alberto Gutierrez, Santiago Aparicio, Mert Atilhan
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2019)
