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Method for continuously preparing spray strengthened aqua compound and device thereof

A preparation device and technology for hydrates, applied in chemical instruments and methods, chemical methods for reacting gaseous media with gaseous media, and methods for chemically changing substances by using atmospheric pressure, etc., can solve the problem of small gas-water contact area, etc. problem, to achieve the effect of increasing the nucleation rate, promoting dissolution, and reducing the impact

Inactive Publication Date: 2008-01-02
UNIV OF SHANGHAI FOR SCI & TECH
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AI Technical Summary

Problems solved by technology

The disadvantages of the above methods are that the gas-water contact area is small, the formation of hydrates will prevent the diffusion of gas in water, and the disturbance of the stirring method will inevitably produce thermal effects, which will affect the formation conditions of hydrates

Method used

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  • Method for continuously preparing spray strengthened aqua compound and device thereof

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Embodiment Construction

[0018] Before hydrate preparation, open valve seven 29, close valve eight 30, and valve nine 31, add an appropriate amount of water to reactor 7, determine the height of the water level through water level gauge 8, close valve seven, and open valve nine. Open valve 5 28 and valve 6 29, use vacuum pump 5 to evacuate the reactor to remove dissolved gas in water, and after realizing the vacuum degree requirement of the reactor, turn off valve 5 of the connecting pipeline of the vacuum pump. According to the phase equilibrium condition of hydrate formation, set the pressure control value of the decompression control valve 4, open valve one 23, valve two 24, valve three 25, valve four 26, and the gas enters the buffer tank 2 from the gas cylinder 1 through the pipeline , to keep the gas pressure stable during the hydrate preparation process, and enter the reactor 7 through the filter 3 and the decompression control valve 4 . The pressure signal on the intake pipeline controls the d...

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Abstract

The invention relates to a continuous preparation method for spray strengthening hydrate. Some water is compensated in reactor so that decompressed steam enters into the reactor and water is atomized and enters into the reactor after water is compressed. The temperature in hydrate preparation process is controlled in the combination of inner cooling and outer cooling. The continuous preparation device for spray strengthening hydrate comprises air supply system, water flow atomization system and refrigeration system, reactor with partition cooling channel and chilled water circulating system. Air source is connected with buffering tank, filter, decompressed controlling valve, pressure gauge and air inlet on the reactor by valve. A vacuum pump is set between the controlling valve and the air inlet. Water source is connected with pressing pump, outer cooler, pressure gauge, thermometer and atomizing nozzle. The outer cooler is connected with the refrigeration system. Refrigerant compensation and refrigeration system and refrigerant circulating pump are connected with chilled water inlet on the reactor. The system can realize continuous and quick preparation for hydrate and shorten induction time for hydration reaction.

Description

technical field [0001] The invention relates to the technical field of continuous preparation of hydrate by gas-liquid contact. In particular, it relates to a method and device for continuous preparation of spray-enhanced hydrate. Background technique [0002] Hydrate is a kind of cage structure crystal formed by small molecular weight gas (liquid) and water under certain temperature and pressure conditions. Under the condition of establishing phase equilibrium conditions for hydrate formation and maintaining certain overpressure or supercooling conditions, different methods can be used to realize the preparation of hydrates. (1) Gas-liquid two-phase interface static contact method: in a non-disturbed manner, keep the hydrate forming gas and water in direct contact at the two-phase interface, diffuse into the solution through the gas to form a hydrate crystal nucleus, and then use this Part of the crystal nucleus is the center, which promotes the formation of a large numbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/26B01J12/00B01J3/00
Inventor 刘道平黄文件周文铸
Owner UNIV OF SHANGHAI FOR SCI & TECH
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