Article
Thermodynamics
Peng Xiao, Bao-Can Dong, Jia Li, Hong-Liang Zhang, Guang-Jin Chen, Xing Huang
Summary: In this study, the filtration of hydrate particles from hydrate slurries, which is a crucial step for continuous hydrate production, was investigated. The specific resistances of the hydrate cakes formed under different pressure drops were measured. It was found that increasing pressure drop led to an increase in specific resistance, particularly in the second stage. An approach involving filtration mediums, additives, and pressure drops was proposed for efficient filtration of hydrate slurries, and a continuous hydrate production process was suggested based on the results.
Article
Energy & Fuels
Tulluru Bhavya, Burla Sai Kiran, Pinnelli S. R. Prasad
Summary: Clathrate hydrates are ideal for storing methane and carbon dioxide, but inefficient conversion and slow kinetics are major obstacles. Adding amino acids in lower dosages can accelerate the conversion process. In static conditions, l-phe and l-thr inhibit CO2 hydrate formation, while l-met and l-val act as promoters.
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
Thermodynamics
Bao-Can Dong, Peng Xiao, Yi-Fei Sun, Jing-Yu Kan, Ming-Ke Yang, Xiao-Wan Peng, Chang-Yu Sun, Guang-Jin Chen
Summary: This study analyzed the evolution and geological stability of hydrate deposits in the South China Sea during depressurization using a numerical model. The analysis also determined the gas-water production. The findings provide important insights for the exploitation of marine heterogeneous hydrates.
Article
Energy & Fuels
Yi-Fei Sun, Bo-Jian Cao, Jin-Rong Zhong, Jing-Yu Kan, Rui Li, Jing-Shuo Niu, Hong-Nan Chen, Guang-Jin Chen, Guo-Zhong Wu, Chang-Yu Sun, Dao-Yi Chen
Summary: This study effectively improves the efficiency of natural gas extraction, increases the CH4 recovery rate, and achieves CO2 hydrate storage through reservoir reformation technology. The results show that this method is very promising.
Article
Energy & Fuels
Huiru Sun, Bingbing Chen, Ziming Yang, Yongchen Song, Mingjun Yang
Summary: This study focused on the effects of hydrate saturation change and multiphase flow on NGHs production behaviors at different exploitation stages. The results showed that initial hydrate saturation and water-gas flowrate were negatively correlated with the onset time of blockage and amount of hydrate reformation.
Article
Energy & Fuels
Xuebing Zhou, Zhanxiao Kang, Jingsheng Lu, Jintu Fan, Xiaoya Zang, Deqing Liang
Summary: Fabric materials were used to enhance the gas-liquid interface and mass transfer during methane hydrate growth. Beach pants fabric was found to be the most effective in promoting methane dissolution and hydrate growth, with over 90% water conversion ratios.
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
Nithin B. Kummamuru, Sammy W. Verbruggen, Silvia Lenaerts, Patrice Perreault
Summary: This fundamental study proposes a new approach for promoting methane hydrates using stainless steel beads packed in an unstirred reactor. The results show that the use of 2 mm stainless steel beads provides more interstitial space and multiple nucleation sites, enhancing the kinetics of methane hydrate formation.
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
Yang Zhao, Aoxing Qu, Mingzhao Yang, Hongsheng Dong, Yang Ge, Qingping Li, Yanzhen Liu, Lunxiang Zhang, Yu Liu, Lei Yang, Yongchen Song, Jiafei Zhao
Summary: This study presents a novel approach to storing hydrate in a naturally porous material - flexible balsa wood, enabling efficient energy storage. By surface modification and adjusting the water amount, the storage efficiency and capacity can be improved. This method also offers sustainability and recyclability.
Review
Thermodynamics
Alberto Maria Gambelli, Andrea Presciutti, Federico Rossi
Summary: This review paper collects literature data on the use of flue-gas for gas hydrate production, highlighting its main features and advantages for future research. It also points out the potential of flue-gas mixtures in addressing challenges in hydrate exploitation, particularly in CO2-related processes. Additionally, the paper provides insights into the composition of flue-gas, phase boundary equilibrium values, and applications of hydrate formation with flue-gas for various purposes.
FLUID PHASE EQUILIBRIA
(2021)
Article
Thermodynamics
Yanlong Li, Nengyou Wu, Deli Gao, Qiang Chen, Changling Liu, Daoyong Yang, Yurong Jin, Fulong Ning, Mingjian Tan, Gaowei Hu
Summary: Horizontal wells are preferred for marine NGH production, but face challenges such as a narrow safe operational window and high fluid-loss ratio. The safety and effectiveness of completion operations are mainly affected by hydrate saturation in the reservoir.
Article
Chemistry, Physical
Abdolreza Farhadian, Ulukbek Zh. Mirzakimov, Matvei E. Semenov, Mina Maddah, Yulia F. Chirkova, Roman S. Pavelyev, Atousa Heydari, Sergei A. Nazarychev, Aleksandr M. Aimaletdinov, Mikhail A. Varfolomeev
Summary: CSSs with shorter alkyl chain lengths showed lower promotion efficiency due to their inability to increase gas solubility in water, especially under static conditions. On the other hand, CSSs with 12 carbon atoms exhibited the optimal promotion effect under dynamic conditions, as their longer alkyl chain length attracted more methane molecules from the solution to supply them for hydrate growth.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Changrui Shi, Huiquan Liu, Lunxiang Zhang, Mingjun Yang, Yongchen Song, Jiafei Zhao, Zheng Ling
Summary: Sluggish formation kinetics is a challenge for the practical application of gas hydrate-based technologies. Carbon monoliths with controlled surface functional groups enhance the nucleating ability of methane hydrates. Carbonyl oxygen is identified as the most effective functional group in reducing induction time and enhancing formation kinetics. The turned hydrogen bonds near the CBCM surface contribute to the enhanced formation kinetics. Optimized carbonyl oxygen in CBCM significantly improves methane hydrate formation kinetics and storage capacity with outstanding cycle stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Himanshu Khandelwal, M. Fahed Qureshi, Junjie Zheng, Pradeep Venkataraman, Timothy A. Barckholtz, Ashish B. Mhadeshwar, Praveen Linga
Summary: L-tryptophan as a kinetic promoter for CO2 hydrate formation demonstrated significant enhancement effects in terms of gas uptake performance, showing potential for application in CO2 capture and storage via gas hydrate technology to mitigate global warming challenges and reduce carbon footprint.
Article
Engineering, Mechanical
M. Fahed Qureshi, Moustafa H. Ali, Hicham Ferroudji, Golam Rasul, Muhammad Saad Khan, Mohammad Azizur Rahman, Rashid Hasan, Ibrahim Hassan
Summary: The study focuses on the application of electrical resistance tomography technology in three-phase flow (air-liquid-solid) and solids cuttings transport, as well as the impact of different operating conditions.
FLOW MEASUREMENT AND INSTRUMENTATION
(2021)
Article
Environmental Sciences
Mehdi Ramezanzadeh, Morteza Aminnaji, Fereidoun Rezanezhad, Mohammad Hossein Ghazanfari, Masoud Babaei
Summary: In this study, the dissolution and mobilization of non-aqueous phase liquid (NAPL) blobs in the Surfactant-Enhanced Aquifer Remediation (SEAR) process were upscaled using dynamic pore network modeling of three-dimensional and unstructured networks. The results show that surfactants enhance NAPL recovery during two-phase flow, but the surfactant-enhanced remediation of residual NAPL through dissolution is highly dependent on the type of surfactant used.
Article
Energy & Fuels
Khosro Jarrahian, Morteza Aminnaji, Alexander Graham, Kenneth Sorbie
Summary: This study investigated the effect of particle size on the apparent adsorption of two scale inhibitors (DETPMP and VS-Co) onto carbonate. The results showed that particle size did not significantly affect the adsorption behavior. The retention behavior of DETPMP and VS-Co differed due to different functional groups and strengths of SI-Ca binding.
Article
Energy & Fuels
M. Fahed Qureshi, Vikas Dhamu, Adam Usadi, Timothy A. Barckholtz, Ashish B. Mhadeshwar, Praveen Linga
Summary: Carbon capture and sequestration is a critical method to reduce carbon footprint and achieve net-zero carbon emissions. This study examines the kinetics of CO2 hydrate formation using liquid CO2 and a green kinetic promoter, and presents a mathematical model for quantifying hydrate formation kinetics. The results show that the green kinetic promoter enhances the overall water to hydrate conversion and reduces the formation process time.
Article
Energy & Fuels
Hicham Ferroudji, Ahmed Hadjadj, Titus Ntow Ofei, Rahul Narayanrao Gajbhiye, Mohammad Azizur Rahman, M. Fahed Qureshi
Summary: Accurate prediction and establishment of a hydraulic program are crucial for ensuring the effective drilling operation of an explored well, with the orbital motion of the drill string playing a significant role in influencing the flow of drilling fluid and cuttings transport process.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Engineering, Environmental
M. Fahed Qureshi, Junjie Zheng, Himanshu Khandelwal, Pradeep Venkataraman, Adam Usadi, Timothy A. Barckholtz, Ashish B. Mhadeshwar, Praveen Linga
Summary: This study provides experimental evidence and support for the stability of CO2 hydrates in oceanic sediments, suggesting the possibility of long-term storage of carbon dioxide in this form.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
M. Fahed Qureshi, Himanshu Khandelwal, Adam Usadi, Timothy A. Barckholtz, Ashish B. Mhadeshwar, Praveen Linga
Summary: This research evaluates the stability of CO2 hydrates in deep-sea saline sediments and finds that they are stable when immersed in a saline solution.
Article
Energy & Fuels
Morteza Aminnaji, Ross Anderson, Khosro Jarrahian, Bahman Tohidi
Summary: Low dosage kinetic hydrate inhibitors (KHIs) are an effective method for preventing solid gas hydrate plug formation in the oil and gas industry. Efforts have been made to develop environmentally friendly KHIs due to concerns around the non-biodegradability of traditional chemistries. Natural pectin has been identified as a potential green KHI with good hydrate inhibition properties. This study compared the performance of food grade apple pectin and the commercial biodegradable KHI polymer Luvicap Bio using crystal growth inhibition methods. Results show that Luvicap Bio offers significant inhibition to high subcoolings, while pectin only shows some anti-nucleation properties.
Article
Energy & Fuels
Vikas Dhamu, M. Fahed Qureshi, Saifudin Abubakar, Adam Usadi, Timothy A. Barckholtz, Ashish B. Mhadeshwar, Praveen Linga
Summary: Carbon capture and storage [CCS] is essential for reducing CO2 emissions, and one potential CCS concept is compressing and storing captured CO2 as gas hydrates in deep oceanic sediments. However, the high salinity of seawater may affect the formation and storage of CO2 hydrates. Therefore, it is crucial to understand the kinetics of liquid CO2 hydrate formation and dissociation in static brine systems.
Article
Energy & Fuels
Morteza Aminnaji, Ross Anderson, Alfred Hase, Bahman Tohidi
Summary: Low dosage kinetic hydrate inhibitors (KHIs) are promising for inhibiting hydrate formation at its early stages, showing both nucleation inhibition and crystal growth inhibition properties. This study evaluates the ability of PVCap polymer to inhibit pre-formed hydrates in a methane-water system. Results indicate that KHIs can not only inhibit further growth but also induce partial to complete dissociation of pre-formed hydrates, even inside the hydrate region, under certain conditions. This behavior is speculated to be related to the transition from metastable to stable hydrate structures.
GAS SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mehrdad Vasheghani Farahani, Aliakbar Hassanpouryouzband, Jinhai Yang, Bahman Tohidi
Summary: This study investigates the evolution of gas hydrate-bearing permafrost sediments against environmental temperature change. Experimental results reveal the influence of complex pore-scale factors on elastic wave velocities and effective thermal conductivity (ETC). The research emphasizes the importance of distinguishing between ice and gas hydrates in frozen sediments for accurate quantification of natural gas hydrate as a sustainable energy resource.
Article
Chemistry, Physical
Mehrdad Vasheghani Farahani, Xianwei Guo, Lunxiang Zhang, Mingzhao Yang, Aliakbar Hassanpouryouzband, Jiafei Zhao, Jinhai Yang, Yongchen Song, Bahman Tohidi
Summary: A study using magnetic resonance imaging was conducted to explore the kinetics and spatial characteristics of thermally induced methane hydrate formation in synthetic and natural sediment samples. The results showed that the first cycle of formation/dissociation had an impact on subsequent cycles, with differences observed in the behavior of natural and synthetic sediment samples during cyclic hydrate formation/dissociation.
SUSTAINABLE ENERGY & FUELS
(2021)
