Abstract
Natural gas hydrate has tremendous gas storage capacity; natural gas hydrate can be used to store and transport energy. The current problem faced is how to improve the hydrate formation rate and storage capacity, and form continuously. Compared to the pure water and SDBS solution, the ionic solution [HMIPS]OTs made by the team was the excellent additive and ensured the best reaction concentration range. Specific effects of different additives on hydrate formation were summarized; hydrate formation mechanism of additives was expounded. Considering the investment cost, operation cost, simple and stable operation of different surfactants, it is thought that the study of different additives mechanisms and developing the new efficient additive have the important value.
Highlights
Gas hydrate is ice-like compounds formed from water and various guest gas molecules
This paper analyzes the experiment of different additives effects on gas hydrate formation, and summarizes the effect of additives in terms of formation rate and gas storage capacity, and achievements
Through compared with curve we found the solution of 700 ppm SDBS, 300 ppm CTAB, 900 ppm PEG, 500 ppm P123, 300 ppm [HMIPS]Ss and 500 ppm [HMIPS]OTs was the best promote concentration respectively
Summary
It has huge gas storage capacity that 1 m3 of hydrate can store 160 - 180 m3 natural gas. Compared to the LNG and CNG, natural gas hydrate storage and transportation technology (NHG) has obvious advantages that much lower investment cost, operation cost, and are. The current problem faced is how to improve the hydrate formation rate and storage capacity, and form continuously. A lot of experiments were done in order to solve this problem, it is expected that gas can be stored and transported in form of hydrate which is more economical than traditional method [3]. This paper analyzes the experiment of different additives effects on gas hydrate formation, and summarizes the effect of additives in terms of formation rate and gas storage capacity, and achievements
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