Article
Energy & Fuels
Chuanwen Sun, Shimin Liu, Shouding Li, Kai Wang, Yiming Sun, Xiao Li, Zhaobin Zhang
Summary: Nano-SiO2 particles can accelerate the formation of tetrahydrofuran hydrate and shorten the induction time, with an optimal mass concentration of 0.5 mg/mL.
Article
Chemistry, Physical
Jiaqi Zhai, Xiaoling Li, Yuguo Wu, Liyan Shang, Junwen Bai
Summary: This study investigated the effects of the concentration of graphite nanoparticles (GNs) on the rate of methane hydrate formation, gas consumption, induction time, and morphology. The results showed that at lower pressures, low concentration GNs increased gas consumption but decreased hydrate formation rate and increased induction time. The addition of high concentration GNs significantly decreased hydrate formation rate, resulted in no obvious induction period, and had little impact on gas consumption. Under higher pressures, the addition of GNs promoted hydrate formation and increased formation rate. The 0.3 wt% concentration of GNs showed the best promotion effect and had higher final gas consumption compared to other metal and oxide nanofluids. Therefore, using cheap GNs as promoters under proper pressure can effectively promote hydrate formation and save costs.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Chun-Gang Xu, Wei Zhang, Hao-Yang Li, Chang-Wen Xiao, Xiao-Sen Li
Summary: This study combines macro experimental investigation, simulation calculation, and microscopic analysis to study the process of hydrate formation and the effects of gas molecules on hydrate nucleation. The results propose a more efficient hydrate formation method and provide directions for solving the key bottleneck of hydrate technology.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Zhixia Deng, Yanhong Wang, Xuemei Lang, Gang Li, Chi Yu, Shenglong Wang, Shuanshi Fan
Summary: This study visualized the formation and decomposition process of hydrate on the fluorinated graphite layer for the first time. It was found that the addition of fluorinated graphite promoted the formation of hydrate and increased gas storage capacity and rate. The optimized FG + SDS system showed excellent stability and was a promising alternative to hydrate-based SNG technology.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Energy & Fuels
Yue Qin, Liyan Shang, Li Zhou, Jian Zhu, Song Yuan, Chunyang Zang, Di Ao, Zeting Li
Summary: This review examines the history and mechanisms of nanofluid use in rapid hydrate formation, evaluates the performance of various nanofluids, and compares them to other systems. The current challenges and constraints of nanofluids are discussed, along with future development recommendations.
Article
Engineering, Chemical
Lingjie Sun, Huilian Sun, Tian Wang, Hongsheng Dong, Lunxiang Zhang, Lei Yang, Jiafei Zhao, Yongchen Song
Summary: This study observed the formation behavior of hydrates in quartz glass beads using a nuclear magnetic resonance system, and found that not all molecules capable of forming hydrates exhibited water absorption effects. The interfacial tension between hydrates and bound water was the driving force for water migration, and larger particle sand facilitated water migration while low initial water saturation inhibited it.
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
Zhixia Deng, Yanhong Wang, Chi Yu, Gang Li, Xuemei Lang, Shenglong Wang, Shuanshi Fan
Summary: Solidified natural gas storage using hydrate with the addition of expanded graphite and sodium dodecyl sulfate showed enhanced gas storage capacity and absorption rate. The collaborative system of expanded graphite and SDS solution significantly improved the kinetics of hydrate formation, leading to higher gas storage capacity and speed compared to traditional systems. Further research on the promotion mechanism of expanded graphite is deemed essential for future commercial applications of solidified natural gas storage.
Article
Engineering, Environmental
Parul Sahu
Summary: Clathrate hydrates are gaining attention for their applications in water reclamation, with advancements in forming agents and kinetic promoters playing a key role in accelerating the hydrate formation and water recovery process. Additionally, developments in novel reactor designs, efficient separation methods, and hybrid processes are making clathrate hydrate technology a strong candidate for future water reclamation from waste effluents.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
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
Yi-Song Yu, Xiao-Sen Li
Summary: The addition of thermodynamic promoters can reduce hydrate formation conditions, but also decreases gas storage capacity. This study identifies the methane hydrate formation mechanism and highlights the significant role of a metastable intermediate structure in promoting gas uptake.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Sheshan Bhimrao Meshram, Harshad Sardar, Omkar S. Kushwaha, Jitendra Sangwai, Rajnish Kumar
Summary: THIs are water-loving additives that interact with water in an aqueous phase and inhibit hydrate nucleation under specific temperature and pressure conditions. LDHIs, on the other hand, work by slowing down hydrate growth and preventing agglomeration, offering a solution to flow assurance challenges in oil and gas facilities with lower concentrations of additives.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Review
Environmental Sciences
Haotian Liu, Linsen Zhan, Hailong Lu
Summary: The mechanisms for methane migration in marine sediments, including diffusion and advection processes, have not been well reviewed yet. The presence of natural gas hydrate affects methane migration by reducing permeability, enhancing geomechanical strength, and constructing hydrate channels. Dissolved methane faces high consumption rates, while free methane gas is hindered by capillary force. Methane discharge along fractures or failure surfaces is considerable, and gas flow through hydrate channels is difficult to constrain.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Energy & Fuels
Zhiming Liu, Xin Geng, Yan Gao, Haiyuan Yao, Haihong Chen, Zhigang Li, Guangchun Song, Wuchang Wang, Yuxing Li
Summary: This study explored the effect of wax content on hydrate formation and deposition, and observed the macroscopic and microscopic morphology of the hydrate deposit layer. The study found that wax influenced the morphology and growth pattern of hydrate, and proposed corresponding mechanisms. Additionally, the adhesive force of hydrate formed in different wax content was measured. This work provides insights on the interaction of hydrate and wax, and can improve flow-assurance strategies in oil-gas production.
Article
Engineering, Environmental
Yuechao Zhao, Xu Lei, Jia-nan Zheng, Ming Li, Michael L. Johns, Mingxing Huang, Yongchen Song
Summary: Gas hydrates are considered promising for gas storage, energy transportation, and seawater desalination. Using MRI, researchers were able to non-invasively image the formation of opaque hydrates from CO2 and water in a cylindrical vessel at low temperature and high pressure. They observed dense hydrate layers forming consistently at the gas-water interface, porous hydrate layers above it, and complex dendritic formations in the water phase below.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Chun-Gang Xu, Yi-Song Yu, Wen-Jun Xie, Zhi-Ming Xia, Zhao-Yang Chen, Xiao-Sen Li
Article
Energy & Fuels
Yuanqing Tao, Kefeng Yan, Xiaosen Li, Zhaoyang Chen, Yisong Yu, Chungang Xu
Article
Thermodynamics
Xuan Kou, Xiao-Sen Li
Article
Thermodynamics
Xiao-Yan Li, Yi Wang, Xiao-Sen Li, Yu Zhang, Zhao-Yang Chen
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2019)
Article
Energy & Fuels
Yi-Song Yu, Qing-Zong Zhang, Xiao-Sen Li, Chang Chen, Shi-Dong Zhou
Article
Energy & Fuels
Ke-Feng Yan, Hao Chen, Zhao-Yang Chen, Xiao-Sen Li, Chun-Gang Xu, Yu Zhang, Zhi-Ming Xia, Yi-Song Yu
Summary: This study investigates the impact of H2O on CH4-CO2 displacement behavior using molecular dynamics simulation and quantum mechanics calculation. It reveals that the electrostatic interaction of H2O-H2O and H2O-gas is a key factor in the CH4-CO2 replacement mechanism, suggesting that modifying the electrostatic interaction with H2O molecules could enhance the replacement efficiency.
Article
Energy & Fuels
Yi-Song Yu, Qing-Zong Zhang, Chang-Chen, Qiu-Nan Lv, Shi-Dong Zhou, Wen-Zhe Yi, Xiao-Sen Li
Summary: This study systematically investigated the kinetics of methane hydrate formation using corn cobs and Tetrahydrofuran as additives. The results demonstrated that corn cobs had a positive impact on methane uptake at lower THF concentrations, with the optimum conditions leading to the highest gas uptake and shortest time to reach 90% of this uptake. Additionally, despite operating conditions beyond sI methane hydrate equilibrium, only sII hydrates were observed, with methane molecules not only trapped in the 512 cages but also in the 51264 cages of sII.
Article
Energy & Fuels
Zhimin Wu, Yi-Song Yu, Shidong Zhou, Chengyuan He, Hui Du
Summary: This study systematically investigates the flow characteristics of CO2 hydrate slurry by analyzing its rheological behavior, apparent viscosity, and crystal shape. The results show that the addition of Tween-80 can effectively prevent blockage and promote the formation of pseudoplastic hydrate slurry. In contrast, the pure water system is prone to blockage and forms dilatant hydrate slurry.
Article
Energy & Fuels
Hao-Yang Li, Xiao-Sen Li, Yi-Song Yu, Zhao-Yang Chen
Summary: In this study, the morphologies of methane hydrate formation in a system containing different mole ratios of tetrahydrofuran (THF) and cyclopentane (CP) at two different temperatures were systematically studied. The results showed that a hydrate film quickly formed at the interface between CP and the THF solution phase, significantly decreasing gas-liquid mass transfer efficiency. Interestingly, the hydrate layer broke when the temperature increased. Three stages of hydrate formation were observed in the system at the higher temperature. Furthermore, the type of promoters used in the system had no effect on CH4 occupancy in sII cages after the hydrate layer ruptured.
Article
Energy & Fuels
Shu-Li Wang, Yan-Yun Xiao, Shi-Dong Zhou, Kun Jiang, Yi-Song Yu, Yong-Chao Rao
Summary: In this study, the thermodynamics and kinetics of hydrate formation in 9.01 wt% TBAB mixed with MWCNTol were investigated. The results showed that MWCNTols had little effect on CO2 hydrate formation phase equilibrium, but they significantly shortened the induction time. The addition of nanoparticles increased the final gas consumption, with the 9.01 wt% TBAB + 0.08 wt% GN system showing the highest increase. The best system was the 9.01 wt% TBAB + 0.02 wt% MWCNTol at 3.5 MPa and 277.15 K, reducing the induction time by 66.67% and increasing the final gas consumption by 284.11%. This work contributes to the industrial application of hydrate technology in CO2 capture and storage.
Article
Chemistry, Multidisciplinary
Shi-Jie Li, Xiang-Yu Yang, Li-Sheng Deng, Yong-Chun Fu, Ming-Jun Pang, Ti Dong, Yi-Song Yu, Ling-Na Su, Shang Jiang
Summary: The objective of this research is to explore the effect of a super-absorbent polymer material on the heat storage performance of magnesium sulfate and investigate the heat transfer behavior of modified composites in a reactor. Both experimental and numerical simulation methods were used. The results provide support for future material and reactor design.
Review
Chemistry, Multidisciplinary
Yi-Song Yu, Xianwei Zhang, Jian-Wu Liu, Yohan Lee, Xiao-Sen Li
Summary: NGHs serve as a carbon storage reservoir and have great application potential in reducing greenhouse gas emissions. However, the implications of NGH extraction and related technologies on future climate change mitigation are not deeply recognized, highlighting the need to address CCS challenges and technological risks imposed by natural gas-based global economy in the coming decades.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Proceedings Paper
Energy & Fuels
Zhiming Xia, Zeyu Li, Zhaoyang Chen, Xiaosen Li, Yu Zhang, Kefeng Yan, Qiunan Lv
INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS
(2019)
Proceedings Paper
Energy & Fuels
Qiunan Lv, Xiaosen Li, Gang Li
INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS
(2019)
Proceedings Paper
Energy & Fuels
Tao Lv, Xiaosen Li, Zhaoyang Chen, Kefeng Yan, Yu Zhang
INNOVATIVE SOLUTIONS FOR ENERGY TRANSITIONS
(2019)
