Study on structure optimization and applicability of hydrocyclone in natural gas hydrate exploitation

With the development of economy and industry, consumption fossil energy is gradually increasing. Currently, natural gas hydrates (NGH) are considered to be an ideal alternative due its large reserve high density. However, separation hydrate slurry a critical step in exploitation NGH. In this study, optimization structural parameters based on conventional three-phase hydrocyclone was carried out using numerical simulation orthogonal design. At same time, efficiency criterion E defined evaluate by calculating sum discharge water gas. Analysis effect individual factors flow field distribution characteristics inside single factor analysis method. The results showed that: with combination s 2 mm × 12 , d z 28 mm, h 20 l i maximum 1.46. significance each parameter from highest lowest h, . single-factor analysis, when tangential velocity, axial CH 4 volume fraction reached 13.65 m/s, 4.35 12.4%, respectively. But minimum phase 69.9% under condition. When 36 decrease value velocity 3.57 66.3%. only had significant effects fraction, 4.75 m/s 32 77.9% 10 mm. study applicable solid fluidization NGH provides some guidance suggestions for after