Article
Engineering, Environmental
Yu-Hsuan Ho, Yau Zu Khoo, Yan-Ping Chen, Ryo Ohmura, Li-Jen Chen
Summary: This study investigates the thermodynamic and kinetic influence of polyethylenimine (PEI) on the formation of methane and carbon dioxide hydrates. It is found that PEI acts as a thermodynamic inhibitor, inhibiting the formation of hydrates. However, it has different effects on methane and carbon dioxide hydrates kinetically, inhibiting methane hydrate formation and promoting carbon dioxide hydrate formation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Moumita Maiti, Prathibha Pillai, Aniruddha Sharma, Ajoy Kumar Bhaumik, Ajay Mandal
Summary: This study investigates the effect of two ionic liquids on the formation and dissociation of gas hydrates and finds that they are effective inhibitors. The inhibition performance of the ionic liquids increases with increasing alkyl chain length.
Article
Materials Science, Multidisciplinary
Emily F. Barker, Sudesna Banerjee, Tara Y. Meyer, Sachin Velankar
Summary: This study investigates the crystallization kinetics of polyoxacyclobutane (POCB) and water to form a cocrystal hydrate, revealing that decreasing temperature and water content can affect the crystallization rates.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Haizatul Hafizah Hussain, Hazlina Husin
Summary: Gas hydrates solid deposition in pipelines has caused critical flow assurance issues, especially in the transportation of hydrocarbons. Mechanical and chemical methods can be used to mitigate gas hydrate occurrences, with the latter being found more feasible. Ionic liquids and amino acids have dual function capabilities in inhibiting hydrates, and their synergistic performances were investigated in this research. Experimental testing for the unlimited number of cationic and anionic combinations of AACILs is time-consuming and costly, so a pre-screening approach was used to study their potential using COSMO-RS software. Among 91 studied synergistic AACILs, choline aspartate showed the highest performance as a hydrate inhibitor.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Seok-In Lim, Eunji Jang, Dongmin Yu, Jahyeon Koo, Dong-Gue Kang, Kyung Min Lee, Nicholas P. P. Godman, Michael E. E. McConney, Dae-Yoon Kim, Kwang-Un Jeong
Summary: This study fabricates wrinkled photonic crystal papers (PCPs) and demonstrates their consistent reflection of colors regardless of viewing angles. The results also show that changing the wrinkle direction can reduce the angular-dependent optical reflection. Additionally, a directionally independent 2D wavy-wrinkled PCP is developed.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Zhi Li, Yue Zhang, Yimao Shen, Xiaodeng Yang, Tianduo Li, Guangjin Chen
Summary: This study synthesized chitosan derivatives with different hydrophilic/hydrophobic properties and compared them with carboxymethyl chitosan derivatives to investigate their relationship with methane hydrate. The experimental results showed that the inhibitory effects of chitosan derivatives were significantly better than carboxymethyl chitosan derivatives. The length and properties of the chitosan derivatives' branched chains played a vital role in hydrate inhibition. Gas-induced agitation provided insights into the hydrate inhibition mechanism of chitosan derivatives.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Immunology
Wenqiang Wei, Lu Bai, Bing Yan, Weiquan Meng, Hongju Wang, Jingbo Zhai, Fusheng Si, Chunfu Zheng
Summary: This article introduces the formation mechanisms of membranous and membraneless organelles in eukaryotic cells, and focuses on the importance and applications of liquid-liquid phase separation (LLPS) in viral infection and immune regulation.
FRONTIERS IN IMMUNOLOGY
(2022)
Review
Engineering, Environmental
Ngoc N. Nguyen, Anh V. Nguyen
Summary: Gas hydrates present both opportunities and threats, and chemical additives are used to promote or inhibit hydrate formation. However, recent studies have shown that some known hydrate promoters can act as inhibitors, and vice versa, when their concentrations change. The dual nature of hydrate additives has not been thoroughly discussed in the literature.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Florianne Castillo-Borja, Ulises Bravo-Sanchez
Summary: The study found that TMACl is the best inhibitor for preventing methane hydrate growth, as it reduces the number of hydrogen bonds between water molecules. Aprotic and protic ionic liquids act differently as inhibitors, with protic ionic liquids showing a competitive advantage in forming hydrogen bonds with water molecules.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Hanie Mohsenzade, Shima Foroutan, Ali Dashti, Navid Ramezanian, Hadi Roosta
Summary: In this study, poly(N-vinylcaprolactam)s were synthesized as potent kinetic hydrate inhibitors, with modifications such as 3-mercaptopropionic acid and mercaptoacetic acid showing superior performance in reducing the growth rate of structure I and structure II hydrates. The synthesized polymers also outperformed commercial products in delaying induction time and increasing relative inhibition power values.
Article
Multidisciplinary Sciences
Qin Shen, Qiangqiang Song, Zhaohuan Mai, Kueir-Rarn Lee, Tomohisa Yoshioka, Kecheng Guan, Ralph Rolly Gonzales, Hideto Matsuyama
Summary: In this study, an ultrapermeable polyamide reverse osmosis membrane with crumpled surface morphology and enlarged free volume was fabricated using interfacial polymerization and self-assembly. The formation mechanism of the crumpled nanostructures was elucidated through multiscale simulations. The electrostatic interactions among molecules, monolayer, and micelles disrupted the monolayer at the interface and promoted the formation of a crumpled PA layer, resulting in enhanced water transport. This work provides valuable insights into the mechanisms of the interfacial polymerization process and has fundamental significance for exploring high-performance desalination membranes.
Article
Energy & Fuels
Ankur Singh, Ajay Suri
Summary: Hydrate formation experiments were conducted to evaluate the synergy between three natural proteins and four standard reference kinetic hydrate inhibitors. The results showed that casein peptone had the best synergy with PVCap, whey protein had the best synergy with HIOP-1800, and bovine serum albumin consistently showed synergy with the standard KHIs.
Article
Energy & Fuels
Ankur Singh, Ajay Suri
Summary: This study investigates the synergistic effects of three plant-based polysaccharides with four kinetic hydrate inhibitors (KHIs), and experimental results show that the polysaccharides can effectively enhance the hydrate inhibition performance.
Article
Energy & Fuels
Yau Zu Khoo, Yu-Hsuan Ho, Kuang-Yu Chang, Yan-Ping Chen, Li-Jen Chen
Summary: This study determined the dissociation conditions of methane hydrates influenced by reline DES, urea, and choline chloride, and found that these additives demonstrated an inhibitory effect on methane hydrate formation.
Article
Engineering, Chemical
Anton P. Semenov, Rais I. Mendgaziev, Vladimir A. Istomin, Daria Sergeeva, Vladimir A. Vinokurov, Yinghua Gong, Tianduo Li, Andrey S. Stoporev
Summary: This study experimentally confirmed the synergistic effect of methanol and magnesium chloride in improving the inhibitory properties of methanol in gas hydrate formation. This combination can reduce inhibitor losses and minimize environmental impact.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Seong-Pil Kang, Taesung Jung, Jong-Won Lee
CHEMICAL ENGINEERING SCIENCE
(2016)
Article
Energy & Fuels
Wonhee Lee, Ju-Young Shin, Ki-Sub Kim, Seong-Pil Kang
Article
Energy & Fuels
Wonhee Lee, Ju-Young Shin, Ki-Sub Kim, Seong-Pil Kang
Article
Thermodynamics
Jong-Ho Cha, Seong-Pil Kang, Songlee Han, Jeong Won Kang, Ki-Sub Kim
FLUID PHASE EQUILIBRIA
(2016)
Article
Thermodynamics
Jong-Ho Cha, Chihyeon Ha, Seong-Pil Kang, Jeong Won Kang, Ki-Sub Kim
FLUID PHASE EQUILIBRIA
(2016)
Article
Chemistry, Multidisciplinary
Wonhee Lee, Ju-Young Shin, Jong-Ho Cha, Ki-Sub Kim, Seong-Pil Kang
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2016)
Article
Energy & Fuels
Jakyung Kim, Hyunho Kim, Young Hoon Sohn, Daejun Chang, Yutaek Seo, Seong-Pil Kang
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2017)
Article
Engineering, Environmental
Wonhee Lee, Yeon-Soo Kim, Seong-Pil Kang
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Energy & Fuels
Wonhee Lee, Ki-Sub Kim, Seong-Pil Kang, Jong-Nam Kim
Article
Energy & Fuels
Seong-Pil Kang, Dongwon Lee, Jong-Won Lee
Article
Energy & Fuels
Wonhee Lee, Youngil Choi, Yeonggyu Kim, Jong-Se Lim, Seong-Pil Kang
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2019)
Article
Engineering, Chemical
Songlee Han, Murali Kannan Maruthamuthu, Wonhee Lee, Soon Ho Hong, Seong-Pil Kang
CHEMICAL ENGINEERING SCIENCE
(2020)
Editorial Material
Energy & Fuels
Wonhee Lee, Seong-Pil Kang
Summary: The paper examined the desalination application of TBAB semiclathrate hydrates, concluding that TBAB hydrate formation is a favorable method for desalination, but failed to consider the possible effects of other co-existing anions.
Article
Engineering, Chemical
Jeongtak Kim, Byeonggwan Lee, Kyuchul Shin, Seong-Pil Kang, Ki Hun Park, Minjun Cha, Saman Alavi, John A. Ripmeester
Summary: It was found that water-NH4F solutions can form clathrates consisting of solid solutions of water and NH4F, which have the same structure as the canonical clathrate hydrates, and can incorporate different guest molecules such as methanol. The research provides insight into the potential of NH4F-doped hydrate lattice, aided by catalytic methanol, for use in hydrate-based gas separation processes.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Songlee Han, Young-Woo Rhee, Seong-Pil Kang
