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)
Article
Thermodynamics
Elaheh Sadeh, Abdolreza Farhadian, Abolfazl Mohammadi, Mina Maddah, Mahdi Pourfath, Mingjun Yang
Summary: The increased energy demand and population growth have resulted in a significant rise in atmospheric carbon dioxide (CO2). Natural gas and carbon capture and storage are crucial for efficient management. Gas hydrates have potential for CO2 capture and energy storage, but their slow formation kinetics have limited commercial usage. In this study, a novel anionic surfactant called aconitic acid (ASA) was developed to improve the formation kinetics of methane and CO2 hydrates. The experiments showed that even at low concentrations, ASA significantly enhanced the formation kinetics of methane hydrates. Molecular dynamics simulations revealed that ASA molecules increased the solubility of gas molecules in the solution, leading to enhanced hydrate growth. Furthermore, no foam formation occurred in the ASA solution at high concentrations. These findings highlight the potential of ASA as an efficient and foamless gas hydrate promoter for methane storage and CO2 capture applications.
ENERGY CONVERSION AND MANAGEMENT
(2023)
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
Chemistry, Multidisciplinary
Dmitry A. Strukov, Tatyana P. Adamova, Andrey Y. Manakov
Summary: The results of visual studies show that during the growth of methane and carbon dioxide hydrates in acid and alkali solutions, hydrate films form at the water-gas interface and on the walls of the reactor. Additionally, hydrate films also grow on the free walls of the reactor, possibly formed from wetting water films on the walls. This study also observes the growth of relatively large hydrate agglomerates directly from the reactor walls, potentially facilitated by film transfer of water between the hydrate films and the walls.
CRYSTAL GROWTH & DESIGN
(2023)
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
Thermodynamics
Xuan Kou, Xiao-Sen Li, Yi Wang, Jian-Wu Liu, Zhao-Yang Chen
Summary: The growth habits of natural gas hydrates are influenced by the gas occurrence pattern, with grain-attaching hydrates forming in the presence of free gas and dispersed and dendritic hydrates forming in the presence of dissolved gas. Changes in gas solubility and gas diffusion are crucial factors that affect the growth habits and morphology of gas hydrates.
Article
Energy & Fuels
Shurraya Denning, Ahmad A. A. Majid, James M. Crawford, Jonathan D. Wells, Moises A. Carreon, Carolyn A. Koh
Summary: Gas hydrates combined with the metal organic framework HKUST-1 show improved methane storage performance. This study demonstrates the scaling up of the system and provides insight into the kinetic effect of HKUST-1 on methane hydrate formation. The results indicate that the addition of HKUST-1 reduces the nucleation induction time, increases the amount and rate of hydrate formation, and operates optimally above the freezing point of ice.
Article
Polymer Science
Shengtong Guo, Yun Zhu, Qiyong Mei, Guiyou Wang
Summary: The bio-based polyurethane material (PPTR-PU) was successfully prepared by reacting bio-based 1,3-propanediol and 3,6,9-trioxaundecanedioic acid with 1,6-hexamethylene diisocyanate. The PPTR-PU film exhibited high tensile strength and toughness, and it underwent rapid degradation in the presence of HCl and NaOH. Porcine pancreatic lipase accelerated the enzymatic degradation of the film. Measurements revealed that the degradation of PPTR-PU occurred through the hydrolysis of ester groups, resulting in decreased molecular weights and increased hydrogen bonding.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2022)
Review
Chemistry, Applied
Parthiban Siwayanan, Zhen Hong Ban, Xinchi Zhang, Anupreetha Parthiban
Summary: Alpha-MES, an anionic surfactant, has been commercially used in the cleaning industry after overcoming technical impediments through five decades of research and development. It is mainly derived from oleo-based sources, with a focus on palm oil. Technology developers and product formulators have faced challenges and obstacles in commercializing Alpha-MES as an active ingredient in laundry detergent production.
JOURNAL OF SURFACTANTS AND DETERGENTS
(2021)
Article
Energy & Fuels
Yingmei Wang, Aili Niu, Wenze Jiao, Ji Chen, Peng Zhang, Jinping Li
Summary: Carbon dioxide hydrate formation rate is improved by using different accelerator systems. The combination of nanographite-TBAB and SDS-TBAB shows better performance in reducing the nucleation time. TBAB shows the best nucleation amount, formation rate, and conversion rate among the single acceleration systems.
Article
Energy & Fuels
Amit Singh, Hari Prakash Veluswamy
Summary: Gas hydrates offer potential solutions for various industrial applications, but their slow formation kinetics and harsh operating conditions limit their large-scale implementation. Amino acids and other biobased additives have been found to enhance methane hydrate formation kinetics, without foaming effects, offering flexibility for gas storage and separation. However, certain amino acids can inhibit carbon dioxide and methane hydrate formations. This study investigates the effects of methionine and chitosan on carbon dioxide and methane hydrate formations, finding that methionine promotes both formations while chitosan inhibits methane hydrate formation but promotes carbon dioxide hydrate formation.
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
Engineering, Environmental
Ye Zhang, Gaurav Bhattacharjee, Junjie Zheng, Praveen Linga
Summary: Hydrogen (H-2) is becoming a key player in the clean energy portfolio as mankind transitions towards renewables and a low carbon future. The use of 1,3-dioxolane (DIOX) as a dual-function promoter for H-2-contained hydrate formation shows promise in increasing gas uptake. Experimental studies provide insight into the macro- and micro-scale properties of the system, laying a foundation for further development of hydrate-based H-2 storage technology.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Lei Yang, Dawei Guan, Aoxing Qu, Qingping Li, Yang Ge, Huiyong Liang, Hongsheng Dong, Shudong Leng, Yanzhen Liu, Lunxiang Zhang, Jiafei Zhao, Yongchen Song
Summary: The unique behavior of gas hydrate formation, characterized by anisotropic growth and thermotactic behavior, was identified. By regulating temperature and heat transfer scheme, one can control the morphology and behavior of hydrate formation, which is important for the application of hydrate-based techniques.
Article
Green & Sustainable Science & Technology
Shuang Chen, Tingting Wu, Yuan Fang, Chen Zhao
Summary: The study developed a new strategy to synthesize bio-lubricant base oil using biomass-derived long-chain alkanes, which show comparable properties to traditional petrochemical-based lubricants. This strategy offers a promising route for producing high-quality bio-lubricant base oil.
Article
Engineering, Chemical
Praveen Linga
Summary: This article presents a bibliometric analysis of the field of gas hydrates or clathrate hydrates from 1901 to 2020. The analysis includes the top countries, cited review articles, original research articles, source titles, field classifications, citation rate trends, and co-occurrence of keywords. Network visualization maps were created to analyze the citations and identify the relationships between countries, sources, and organizations.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Kan Jeenmuang, Phuwadej Pornaroontham, Katipot Inkong, Gaurav Bhattacharjee, Santi Kulprathipanja, Praveen Linga, Pramoch Rangsunvigit
Summary: This study reveals that using amino acids as kinetic promoters can enhance the formation of mixed methane-THF hydrates at room temperature and pressure, with hydrophobic amino acids showing the most significant effect.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Hyunho Kim, Junjie Zheng, Zhenyuan Yin, Ponnivalavan Babu, Sreekala Kumar, Jackson Tee, Praveen Linga
Summary: The rheology of TBAB semi-clathrate hydrate slurry (SHS) was studied, and the discrepancy in the literature was clarified. TBAB SHS exhibited non-Newtonian shear-thinning behavior, with its apparent viscosity increasing exponentially with the increase of hydrate fraction. Type B TBAB SHS was recommended due to its lower apparent viscosity. Additionally, the environmentally benign additive L-tryptophan was found to significantly decrease the apparent viscosity of TBAB SHS and reduce pumping power consumption in cooling applications by 68.7%.
Article
Chemistry, Multidisciplinary
Viphada Yodpetch, Katipot Inkong, Hari Prakash Veluswamy, Santi Kulprathipanja, Pramoch Rangsunvigit, Praveen Linga
Summary: Carbon capture and storage (CCS) is a promising method for reducing carbon dioxide (CO2) emissions from fossil fuels. Amino acids, such as leucine, methionine, and valine, were used as promoters in CO2 hydrate formation. Different concentrations of amino acids had varying effects on the rate of hydrate formation. The use of amino acids with the hybrid combinatorial reactor (HCR) approach shows promise for CCS applications.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Chanagun Wongburapachart, Phuwadej Pornaroontham, Kyusung Kim, Pramoch Rangsunvigit
Summary: Photocatalysis is an eco-friendly technology that can contribute to achieving the Sustainable Development Goals. However, conventional photocatalysts have limitations such as slow kinetics, limited excitation wavelengths, and environmental restrictions. This study focuses on the development of a photo-chargeable photocatalyst that can operate even in the absence of light, and investigates the effects of synthesis conditions on its photocatalytic properties.
Article
Energy & Fuels
Junjie Ren, Siyu Zeng, Daoyi Chen, Mingjun Yang, Praveen Linga, Zhenyuan Yin
Summary: This study investigates the role of clay minerals in CO2 hydrate formation and dissociation in clay-rich sediments. It is found that the presence of sodium montmorillonite (Na-MMT) clay significantly reduces the induction time and growth rate of CO2 hydrate due to additional nucleation sites and induced surface electric field. The high viscosity of the suspension and the clay-induced strongly-polarized water layer impede the mass transfer of CO2, thereby retarding the overall kinetics of CO2 hydrate formation.
Article
Energy & Fuels
Ye Zhang, Huanzhi Xu, Gaurav Bhattacharjee, Praveen Linga
Summary: With the increasing demand for natural gas in the current century, solidified natural gas technology is expected to play a vital role in enhancing energy resilience and ensuring sufficient energy supply globally. In this study, dioxane was used as an environmentally friendly additive and a dual-function promoter for hydrate formation in simulated seawater, addressing the issues of water scarcity and the use of toxic chemicals, and potentially increasing methane storage capacity.
Article
Engineering, Chemical
Namrata Gaikwad, Hyunho Kim, Gaurav Bhattacharjee, Jitendra S. Sangwai, Rajnish Kumar, Praveen Linga
Summary: This study experimentally investigated the formation of sH hydrate with methane and cyclooctane for possible applications in gas storage. The study found that the slow kinetics of sH hydrate formation can be improved by using low tryptophan concentrations. Raman analysis confirmed the presence of methane and cyclooctane in the sH hydrate cages.
ACS ENGINEERING AU
(2023)
Article
Energy & Fuels
Zheng Liu, Junjie Zheng, Zhiyuan Wang, Yonghai Gao, Baojiang Sun, Youqiang Liao, Praveen Linga
Summary: Natural gas hydrate (NGH) is an unconventional energy source with high energy density, huge reserves, and worldwide distribution. Sand-dominated hydrate-bearing sediments (HBS) are the most feasible category for exploitation, however, the presence of clay hinders the formation kinetics of the hydrates, making it challenging to study fluid production behavior. This study synthesized clayey-sandy HBS samples using a new method and observed that the presence of clay led to slower hydrate decomposition and a significant difference in fluid production behavior compared to sandy HBS. The findings call for further investigations and development of specific production strategies for clay-containing HBS.
Article
Engineering, Environmental
Jibao Zhang, Yan Li, Zhenyuan Yin, Praveen Linga, Tianbiao He, Xiangyuan Zheng
Summary: This study introduces an environmentally friendly kinetic promoter (L-valine) and couples it with a thermodynamic promoter (THF) to enhance the kinetics of H2 hydrate formation. The optimal enhancement is achieved using 0.3 wt% L-Val coupled with 5.56 mol% THF, resulting in a maximum volumetric H2 uptake of 29.83 +/- 1.22 v/v. The results provide insights into accelerating H2 uptake in solid-hydrate form and have potential applications in hydrate-based hydrogen storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Qiang Zhang, Junjie Zheng, Baoyong Zhang, Praveen Linga
Summary: Coalbed methane recovery is crucial for coal mine safety, reducing greenhouse gas emissions, and economic benefits. Gas hydrate technology can effectively separate CH4 from N2-rich coal mine gas. The synergistic effect of sII hydrate promoters and amino acids was examined for enhancing hydrate formation kinetics, separation performance, and CH4 recovery. Amino acids showed significant promotion effects, particularly for the propane system, and improved kinetics by over 10 times. CP-amino acid systems demonstrated excellent separation performance, increasing CH4 content from 30% to 70%. THF-amino acid systems achieved the highest CH4 recovery of up to 50.27%. The impact of amino acids varied depending on the system, and two possible mechanisms, including interfacial tension alteration and amino acid hydrophobicity, were discussed. These insights provide a basis for optimizing the hydrate process for coalbed methane recovery and other applications.
Article
Energy & Fuels
Phuwadej Pornaroontham, Kyusung Kim, Santi Kulprathipanja, Pramoch Rangsunvigit
Summary: In this study, explainable supervised machine learning was used to examine the influence of water-soluble organic molecules on methane hydrate forming systems. With over 800 samples, predictive models were built using CatBoost, which yielded good temperature predictions on unseen data. Feature selection showed that only 7 attributes are necessary for an effective model.
Article
Engineering, Environmental
Yan Li, Zhenyuan Yin, Hongfeng Lu, Chenlu Xu, Xuejian Liu, Hailin Huang, Daoyi Chen, Praveen Linga
Summary: Carbon capture and sequestration (CCS) is widely recognized as the most effective technology for reducing CO2 emissions and mitigating global climate change. Hydrate-based CO2 sequestration (HBCS) has emerged as a promising technology, and there is growing interest in using hydrophobic amino acids to enhance CO2 hydrate formation kinetics.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
