Kinetic Study on the Process of Cyclopentane plus Methane Hydrate Formation in NaCl Solution

In this work, the formation kinetics of cyclopentane (CP) + methane hydrate is studied. CP is used as a promoter to accelerate the hydrate formation. The total methane consumption, the induction time, and the formation rate were investigated under different hydrate formation conditions in NaC1 solut...

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Bibliographic Details
Published in:Energy & Fuels
Main Authors: Lv, Qiunan, Song, Yongchen, Li, Xiaosen
Format: Article in Journal/Newspaper
Language:English
Published: 2016
Subjects:
Science & Technology
Technology
Energy & Fuels
Engineering
ETHYLENE-GLYCOL INJECTION
GAS HYDRATE
PRODUCTION BEHAVIOR
CARBON-DIOXIDE
UNCONSOLIDATED SEDIMENT
EQUILIBRIUM CONDITIONS
THERMAL-STIMULATION
PHASE-EQUILIBRIUM
PROPANE HYDRATE
DISSOCIATION
Chemical
Methane hydrate
Online Access:http://ir.giec.ac.cn/handle/344007/11127
https://doi.org/10.1021/acs.energyfuels.5b02634
Description
Summary:In this work, the formation kinetics of cyclopentane (CP) + methane hydrate is studied. CP is used as a promoter to accelerate the hydrate formation. The total methane consumption, the induction time, and the formation rate were investigated under different hydrate formation conditions in NaC1 solution. The results indicated that the pressure driving force could increase the gas consumption and shorten the induction time. Meanwhile, the induction time could be greatly influenced by the pressure driving force at a lower temperature. Especially, it could be shortened to a minimum value of 110 s with the increase of the pressure driving force at a fixed operating condition (CP concentration, 7.45%; NaCl solution concentration, 3.50%; and temperature, 298.15 K). Moreover, the hydrate formation rate would be accelerated with the increase of the stirring rate by its promotion in the dissolution and dispersion of methane. Finally, a higher CP concentration was favorable for the rapid hydrate formation of CP + CH4 binary hydrates. The amount of CP used could determine the amount of methane incorporated into the hydrate phase.

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