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Song T, Zhang J, Li W, Ma J, Hu S, Liu J, Li X, Hu W, Lan C, Tian G, Jin T, Han Y, Wang J, Gong J, Cheng C. Rapid Growth of the CO 2 Hydrate Induced by Mixing Trace Tetrafluoroethane. ACS OMEGA 2023; 8:41232-41242. [PMID: 37970053 PMCID: PMC10633894 DOI: 10.1021/acsomega.3c04578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/24/2023] [Indexed: 11/17/2023]
Abstract
Rapid formation of the CO2 hydrate can be significantly induced by the gaseous thermodynamic promoter 1,1,1,2-tetrafluoroethane(R134a) due to the mild phase equilibrium conditions, although the formation mechanism and dynamic behavior are not clear. Therefore, a visual experimental system was developed to study the effects of different concentrations of R134a on the induction time, gas consumption, and growth morphology of the CO2 hydrate. At the same time, the combined effects under stirring and sodium dodecyl sulfate (SDS) systems were also studied. In addition, visualization and experimental model diagrams were combined to explain the fast formation mechanism of the R134a/CO2 hydrate. The results show that the CO2 hydrate average conversion rate was increased by more than 63% with the addition of mixed trace R134a(7%). A special phenomenon is found that two temperature peaks appear on the hydrate formation temperature curve, corresponding to two different stages of hydrate formation when stirring or SDS is added to the mixed gas reaction system. Furthermore, the gas consumption in stirring and SDS systems increases by 9 and 44%, respectively. Finally, it is also found that the R134a/CO2 mixed hydrate formed under the action of SDS has a "capillary" mechanism, which provides a gas-liquid phase exchange channel and a large number of nucleation sites for CO2 hydrate, thus promoting the formation of CO2 hydrate. This paper provides a novel, simple, and efficient method for CO2 hydrate gas storage technology.
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Affiliation(s)
- Tianyi Song
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
- Longhua
Technology Group (Luoyang) Co., Ltd., LuoYang 471026, China
| | - Jinhai Zhang
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
| | - Wei Li
- Longhua
Technology Group (Luoyang) Co., Ltd., LuoYang 471026, China
| | - Jie Ma
- Longhua
Technology Group (Luoyang) Co., Ltd., LuoYang 471026, China
| | - Shen Hu
- Longhua
Technology Group (Luoyang) Co., Ltd., LuoYang 471026, China
| | - Jianxiu Liu
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
| | - Xiaonan Li
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
| | - Wenfeng Hu
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
| | - Chunming Lan
- Longhua
Technology Group (Luoyang) Co., Ltd., LuoYang 471026, China
| | - Guohua Tian
- Longhua
Technology Group (Luoyang) Co., Ltd., LuoYang 471026, China
| | - Tingxiang Jin
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
| | - Yuexin Han
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
| | - Jiancheng Wang
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
| | - Junjie Gong
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
| | - Chuanxiao Cheng
- School
of Energy and Power Engineering, Zhengzhou
University of Light Industry, Zhengzhou 450002, China
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A comparative study of tetra-n-butylammonium bromide potentiometric selective screen printed, carbon paste and carbon nanotube modified graphite sensors. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01825-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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