Review
Green & Sustainable Science & Technology
Zucheng Cheng, Shaohua Li, Yu Liu, Yi Zhang, Zheng Ling, Mingjun Yang, Lanlan Jiang, Yongchen Song
Summary: The review discussed the effects of additives on hydrate formation and proposed future research directions, such as the development of more environmentally friendly thermodynamic additives and process optimization.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Engineering, Chemical
Awan Bhati, Aritra Kar, Vaibhav Bahadur
Summary: This study predicts the performance of a bubble column reactor (BCR) for CO2 hydrate formation from flue gas and pure CO2 streams using a modeling framework. The study focuses on two performance parameters: gas consumption rate and conversion factor. The analysis shows that increasing pressure, decreasing temperature, and increasing CO2 mole fraction lead to higher performance parameters. This study provides a basis for the design and operation of BCRs for CO2 hydrates-based CCS applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Thermodynamics
Nada Chami, Yasmine Salehy, Dennis Burgner, Pascal Clain, Didier Dalmazzone, Anthony Delahaye, Laurence Fournaison
Summary: The use of CO2 hydrates as phase change materials in secondary loop refrigeration is promising. This study found that the formation pressure of hydrates can be significantly lowered by using promoters. The rheological properties of CP and mixed CP + CO2 hydrate slurries were studied, and they exhibited a shear thinning behavior.
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
Chemistry, Multidisciplinary
Takuma Misawa, Tomoaki Ishikawa, Satoshi Takeya, Saman Alavi, Ryo Ohmura
Summary: CO2 separation from H2 + CO2 gas mixture is essential for stable supply of blue hydrogen, and hydrate-based CO2 separation is a superior technology in terms of environmental and economic aspects. The study showed successful CO2 separation in the H2 + CO2 + CP + H2O system at 284 K, but with an increase in energy costs due to hydrogen loss.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Energy & Fuels
Meku Maruyama, Shun Kao, Hitoshi Kiyokawa, Satoshi Takeya, Ryo Ohmura
Summary: In this study, clathrate-hydrate-based continuous CO2 capture was experimentally investigated, and it was found that the CO2 concentration rate and recovery ratio were lower compared to pre-combustion systems. However, it was revealed that improving the geometry of mixing impellers could enhance the CO2 recovery ratio for continuous operation.
Article
Energy & Fuels
Wang Weiyang, Zhou Chenru, Liu Chenwei, Wang Zhiyuan, Li Mingzhong
Summary: This study investigated the interaction behaviors of hydrate particle-particle/droplet and hydrate deposition-pipe wall in the cyclopentane (CyC5) vapor phase. The results showed that hydrate formation rate is higher in the vapor phase compared to the liquid CyC5 phase. The hydrate particle-particle adhesion forces slightly increase with temperature in the vapor phase, and the hydrate-droplet adhesion forces change with the conversion of water in liquid bridges. The adhesion strengths of hydrate deposition increase with substrate roughness and formation/annealing time, but decrease with temperature.
Article
Engineering, Environmental
Yanzhen Liu, Lunxiang Zhang, Lei Yang, Hongsheng Dong, Jiafei Zhao, Yongchen Song
Summary: This study found that the presence of organic matters can kinetically promote CO2 hydrate formation, with sulfur-containing acid-dissolvable organic matters having a more significant effect. Additionally, the action of organic matters leads to the fragmentation of large pores into small pores isolated by hydrate clusters, enhancing gas-water contact.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Energy & Fuels
Wang Weiyang, Zhou Chenru, Liu Chenwei, Wang Zhiyuan, Li Mingzhong
Summary: This study experimentally investigated the interaction behaviors of hydrate particle-particle/droplet and hydrate deposition-pipe wall in the cyclopentane vapor phase. It found that hydrate formation in the vapor phase is a fast-growing process with rough particle surfaces exhibiting strong hydrophilic characteristics. The adhesion forces between hydrate particles in the vapor phase slightly increase with temperature and are approximately 2-3 times higher than in the liquid cyclopentane phase. In the case of hydrate deposition, the adhesion strengths increase with substrate roughness and formation/annealing time, but decrease with temperature.
Article
Energy & Fuels
Shuai Wang, Changrui Shi, Huiquan Liu, Lunxiang Zhang, Jiafei Zhao, Yongchen Song, Zheng Ling
Summary: This study demonstrates a simple strategy to fabricate composite aerogels for boosting CO2 hydrate formation using natural vermiculite and MXene nanosheets. The research finds that by controlling the mass ratio of vermiculite and MXene, the structure and surface functional groups of the aerogels can be finely tuned, leading to enhanced CO2 storage capacity and hydrate formation kinetics.
Article
Thermodynamics
Qi Zhao, Zhao-Yang Chen, Xiao-Sen Li, Zhi-Ming Xia
Summary: This study investigates the influence of an electrostatic field on the formation of CO2 hydrate in fresh water, memory water, and saltwater systems. Experimental results show that the presence of an electrostatic field can promote the nucleation and growth of CO2 hydrate. However, the electrostatic field weakens the memory effect in the memory water system and increases the completion time of hydrate formation in the salt water system.
Review
Engineering, Chemical
Mariia Pasichnyk, Petr Stanovsky, Petr Polezhaev, Boleslav Zach, Michal Syo, Marek Bobak, Johannes C. Jansen, Michal Pribyl, Jason E. Bara, Karel Friess, Jaromir Havlica, Douglas L. Gin, Richard D. Noble, Pavel Izak
Summary: The major gaseous pollutants emitted during the combustion of fossil fuels, energy-intensive production of materials, and waste processing are CO2, SO2, and NOx. The industry and research community are working together to intensify their capture and reduce their emissions in order to meet stricter emission limits. Membrane separation technology, which is energy-efficient and can be combined with other technologies, is a significant application for environmental protection. Different types of membranes with specific functions and unique systems are discussed as promising technologies for flue gas purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Ayaj Ahamad Ansari, Samarshi Chakraborty, Randeep Ravesh, Pradipta Kumar Panigrahi, Malay Kumar Das
Summary: This study focuses on the synthesis of Cu-Al LDH nanofluid and its effectiveness as a promoter for CO2 hydrate formation. The results show that the nanofluid significantly enhances gas absorption, total gas consumption, and water to hydrate conversion.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Jibao Zhang, Xialian Xing, Zhenyuan Yin, Ning Mao, Tianbiao He
Summary: This study investigates the effect of cyclopentane/water volume ratio, graphite size, and graphite/water volume ratio on CO2+C3H8 hydrate formation kinetics. The results show that cyclopentane can shift the hydrate phase equilibrium condition and accelerate hydrate formation. The smaller size of hydrophobic graphite provides more sites for hydrate nucleation and growth. The synergy of graphite and cyclopentane reduces the hydrate induction time and increases the hydrate conversion rate.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Thermodynamics
Hong Huang, Shuanshi Fan, Yanhong Wang, Xuemei Lang, Gang Li
Summary: The two-stage hydrate-based biogas De-CO2 process in the presence of TBAB was simulated and analyzed using ASPEN plus software. The effects of key process parameters on energy consumption and the exergy of the whole process were determined. Optimization of process energy utilization resulted in a reduction in total energy consumption and lower energy cost compared to other carbon capture processes.
