Abstract: A gas-liquid separation apparatus suitable for gas hydrate slurry, comprising an upper chamber, a middle chamber, and a lower chamber; a gas-phase outlet and a pressurizing unit are disposed in a top of the upper chamber, the middle chamber is provided with a material inlet and a wire mesh demister, and the lower chamber is provided with a liquid-phase outlet and a plurality of deflector baffles. The arrangement of divided chambers can reduce the degree of hydrate dissociation in the slurry (i.e., loss of the sought gas) and improve the separation efficiency. With the pressurizing unit, it facilitates the setting of the required pressure for gas-liquid separation without introducing a pressure maintaining valve in the subsequent separation process, prevents the hydrate in the slurry from dissociating in the apparatus, and allows rapid separation between the slurry and the gas.

Abstract: An apparatus and a combined process for carbon dioxide gas separation, combining the hydrate-based process with the chemical absorption process, which reduces secondary pollution and allows the efficient continuous separation of carbon dioxide gas without increasing the pressure and thereby the operating cost is reduced significantly. The apparatus and combined process can be applied in the separation of carbon dioxide in IGCC synthetic gas, natural gas and biogas, and address the issues of the existing processes such as high energy consumption, low throughput, and secondary pollution.

Abstract: A simulation device of an entire natural gas hydrate exploitation process includes a high pressure reaction kettle, a gas-liquid separation device, a hydrate accumulation simulation subsystem simulating a hydrate accumulation process, a hydrate formation drilling simulation subsystem simulating a hydrate formation drilling process, a hydrate exploitation simulation subsystem simulating a hydrate decomposition and gas production process, and a produced gas collecting and processing simulation subsystem simulating a produced gas collecting and processing process. A method for simulating an entire natural gas hydrate exploitation process includes a hydrate accumulation process, a hydrate formation drilling process, a hydrate exploitation process and a produced gas collecting and processing process.

Abstract: A gas-liquid separation apparatus suitable for gas hydrate slurry, comprising an upper chamber, a middle chamber, and a lower chamber; a gas-phase outlet and a pressurizing unit are disposed in a top of the upper chamber, the middle chamber is provided with a material inlet and a wire mesh demister, and the lower chamber is provided with a liquid-phase outlet and a plurality of deflector baffles. The arrangement of divided chambers can reduce the degree of hydrate dissociation in the slurry (i.e., loss of the sought gas) and improve the separation efficiency. With the pressurizing unit, it facilitates the setting of the required pressure for gas-liquid separation without introducing a pressure maintaining valve in the subsequent separation process, prevents the hydrate in the slurry from dissociating in the apparatus, and allows rapid separation between the slurry and the gas.

Abstract: An apparatus and a combined process for carbon dioxide gas separation, combining the hydrate-based process with the chemical absorption process, which reduces secondary pollution and allows the efficient continuous separation of carbon dioxide gas without increasing the pressure and thereby the operating cost is reduced significantly. The apparatus and combined process can be applied in the separation of carbon dioxide in IGCC synthetic gas, natural gas and biogas, and address the issues of the existing processes such as high energy consumption, low throughput, and secondary pollution.

Abstract: A device for simulating exploitation of a natural gas hydrate in a permeable boundary layer includes a high pressure reaction kettle, a formation simulation unit and an aquifer maintaining unit. A water bath jacket externally connected with constant temperature water bath is arranged on the outer wall of the high pressure reaction kettle for providing a necessary temperature condition for the high pressure reaction kettle. A simulative well at the center of the top of the high pressure reaction kettle is connected with liquid injection, gas injection, gas production and water production equipment. An aquifer interface at the bottom of the high pressure reaction kettle is connected to the aquifer maintaining unit through a pipeline. The simulation device simulates the geological environment of a hydrate reservoir, allowing comprehensive evaluation of hydrate exploitation under different formation permeability and different formation pressure gradients.

Abstract: A simulation device of an entire natural gas hydrate exploitation process includes a high pressure reaction kettle, a gas-liquid separation device, a hydrate accumulation simulation subsystem simulating a hydrate accumulation process, a hydrate formation drilling simulation subsystem simulating a hydrate formation drilling process, a hydrate exploitation simulation subsystem simulating a hydrate decomposition and gas production process, and a produced gas collecting and processing simulation subsystem simulating a produced gas collecting and processing process. A method for simulating an entire natural gas hydrate exploitation process includes a hydrate accumulation process, a hydrate formation drilling process, a hydrate exploitation process and a produced gas collecting and processing process.

Abstract: A spraying device for quickly forming gas hydrates, includes a stable gas supply system, a saturated solution preparation system, a gas-liquid mixed sprayer, a temperature control system and a data collecting and processing system. Pressure atomization is achieved at a high atomization speed and the atomized fog drops are uniformly distributed within a scale range of 5-10 microns to form a gas-in-water contact mode, so as to effectively increase a gas-water contact superficial area and significantly shorten the induction time of forming the gas hydrates. The device achieves gas-liquid intensive mixing in a gas-liquid mixing cavity in a spray manner and consumes no energy, thereby reducing the total energy consumption of forming the gas hydrates and improving the energy consumption efficiency of forming the gas hydrates. The spraying device applies to thermodynamics and kinetics experiments of quick and continuous hydrate method gas separation and rapid formation of the gas hydrates.

Abstract: A device for simulating exploitation of a natural gas hydrate in a permeable boundary layer includes a high pressure reaction kettle, a formation simulation unit and an aquifer maintaining unit. A water bath jacket externally connected with constant temperature water bath is arranged on the outer wall of the high pressure reaction kettle for providing a necessary temperature condition for the high pressure reaction kettle. A simulative well at the center of the top of the high pressure reaction kettle is connected with liquid injection, gas injection, gas production and water production equipment. An aquifer interface at the bottom of the high pressure reaction kettle is connected to the aquifer maintaining unit through a pipeline. The simulation device simulates the geological environment of a hydrate reservoir, allowing comprehensive evaluation of hydrate exploitation under different formation permeability and different formation pressure gradients.