1
|
Wang Y, Niu A, Liu S, Chen J, Zhang X, Zhan J. Effects of Composite Accelerators on the Formation of Carbon Dioxide Hydrates. ACS OMEGA 2022; 7:15359-15368. [PMID: 35571789 PMCID: PMC9096828 DOI: 10.1021/acsomega.1c06834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 03/30/2022] [Indexed: 06/15/2023]
Abstract
To improve the rate of formation of carbon dioxide hydrates, tetra-n-butylammonium bromide (TBAB) was compounded with different concentrations of sodium dodecyl sulfate (SDS) and nanographite, and the effects of these mixtures on carbon dioxide hydrate formation were studied. The addition of TBAB alone, as well as mixtures of TBAB and SDS or nanographite, shortened the induced nucleation time, and the induction times of the TBAB-2.5 g/L nanographite and TBAB-0.24 g/L SDS systems were the shortest and longest, respectively. Further, on mixing TBAB and SDS, the induced nucleation time first increased and then decreased with the increase in the SDS concentration. When TBAB and nanographite were mixed together, the induced nucleation time first decreased, then increased, and again decreased with the increase in the nanographite concentration. In addition, the hydrate formation rate and conversion were highest for the TBAB-0.48 g/L SDS system and lowest for the TBAB-0.06 g/L SDS system; in the first 35 min, from the end of gas charging, the TBAB-10 g/L nanographite and TBAB-5 g/L nanographite systems yielded the highest and lowest hydrate formation rates and conversions, respectively. For the composite systems, obvious effects were observed in the initial stages of reaction, but the effects varied over the course of the reaction. Overall, the use of different accelerators resulted in little differences in the total production, conversion, and formation rate of carbon dioxide hydrates over the course of the reaction.
Collapse
Affiliation(s)
- Yingmei Wang
- Western
China Research Center of Energy & Environment, Lanzhou University of Technology, Lanzhou 730050, China
- Key
Lab of Complementary Energy System of Biomass and Solar Energy, Lanzhou, Gansu Province 730050, China
- Collaborative
Innovation Center of Key Technology for Northwest Low Carbon Urbanization, Lanzhou 730050, China
| | - Aili Niu
- Western
China Research Center of Energy & Environment, Lanzhou University of Technology, Lanzhou 730050, China
- Key
Lab of Complementary Energy System of Biomass and Solar Energy, Lanzhou, Gansu Province 730050, China
- Collaborative
Innovation Center of Key Technology for Northwest Low Carbon Urbanization, Lanzhou 730050, China
| | - Shenghao Liu
- Western
China Research Center of Energy & Environment, Lanzhou University of Technology, Lanzhou 730050, China
- Key
Lab of Complementary Energy System of Biomass and Solar Energy, Lanzhou, Gansu Province 730050, China
- Collaborative
Innovation Center of Key Technology for Northwest Low Carbon Urbanization, Lanzhou 730050, China
| | - Ji Chen
- State
Key Laboratory of Frozen Soil Engineering, Northwest Institute of
Eco-Environment and Resources, Chinese Academy
of Sciences, Lanzhou 730000, China
| | - Xuemin Zhang
- Western
China Research Center of Energy & Environment, Lanzhou University of Technology, Lanzhou 730050, China
- Key
Lab of Complementary Energy System of Biomass and Solar Energy, Lanzhou, Gansu Province 730050, China
- Collaborative
Innovation Center of Key Technology for Northwest Low Carbon Urbanization, Lanzhou 730050, China
| | - Jing Zhan
- State
Key Laboratory of Frozen Soil Engineering, Northwest Institute of
Eco-Environment and Resources, Chinese Academy
of Sciences, Lanzhou 730000, China
| |
Collapse
|
2
|
Chaturvedi E, Laik S, Mandal A. A comprehensive review of the effect of different kinetic promoters on methane hydrate formation. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.09.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|