Multi-reaction kettle spray strengthening gas hydrate continuously producing device and process sequence

Abstract

The invention discloses a multi-reaction kettle spray strengthening natural gas hydrate continuous preparation device, and comprises at least two sleeved reaction kettles provided with water current atomization, wherein, a cooling water circulation passage is arranged between the two layers of sleeves, the reaction kettles are connected in series; the top of each reaction kettle is provided with a sprayer, the water flows through a circulation pump to be connected with the sprayers of the reaction kettles; the reaction kettles are connected in series through horizontal water pipes positioned at the lower parts of the reaction kettles; a discharge pipe positioned at the middle and lower part of a main reaction kettle is connected with a separator. The natural gas is made a pressure boost by a compressor and is passed into each reaction kettle, and certain quantity of water is passed into an inductive reaction kettle. The cooling system is turned on to lower the temperature of the natural gas and the water in each reaction kettle to the needed conditions by the reaction, the atomization system of the inductive reaction kettle is turned on, the produced natural gas hydrate is discharged into the main reaction kettle and is continuously made hydration reaction with the water supplied by the inductive reaction kettle. When the water quantity with the generated history of the hydrate in the main reaction kettle meets the requirement, the atomization system of the main reaction kettle is started to prepare and separate the hydration and finally discharge the hydration.

Description

Technical field: [0001] The invention relates to a device and a process flow for continuous preparation of natural gas hydrate by spraying intensification in multiple reactors. Background technique: [0002] In the field of natural gas industry, the existing natural gas storage and transportation technologies include: transporting natural gas through pipelines; using low-temperature technology to liquefy natural gas (LNG); loading special adsorbents for natural gas in storage tanks, and absorbing natural gas for adsorption storage of natural gas (ANG) technology; technologies such as converting natural gas into liquid products. At present, natural gas pipeline transportation is still the main means of natural gas international trade, but its initial investment is large. Due to the low temperature liquefaction of LNG, the operating cost is very high. Natural gas hydrate storage and transportation technology (NGH) is a new type of natural gas storage and transportation techn...

AI Technical Summary

Problems solved by technology

However, since the heat generated during the hydration process is easy to accumulate inside the water droplets, it is not conducive to maintaining the conditions for hydrate formation. Therefore, in the process of preparing hydrates by spraying, how to quickly remove the heat in the process of hydrate formation is crucial for the preparation of natural gas hydrates by spraying. It is very important for things to become practical

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