Supergravity hydrate synthesis device

Abstract

The invention relates to the technical field of hydrate synthesis, storage and transportation and particularly relates to a supergravity hydrate synthesis device. The supergravity hydrate synthesis device comprises a cut-off valve, a one-way liquid valve, a nozzle, a one-way gas valve, a pressure regulating valve, a gas buffer tank, a compressor, a condenser, a turbine flowmeter, an ice maker, a pressure gauge, a pulping machine, a slurry pump, a surfactant storage tank, a Laval spraying valve, a mass flowmeter, a vertical three-phase separator and a supergravity reactor. The supergravity hydrate synthesis device adopts a supergravity technology for enhancing the heat transfer and mass transfer in a hydrate synthesis process, so that the reaction time is shortened, the equipment size decreases, the production cost is reduced, and a tapered outlet is formed so as to be helpful to the outflow of generated hydrates.

Description

technical field [0001] The invention relates to the technical field of hydrate synthesis, storage and transportation, in particular to a synthesis device for high-gravity hydrate. Background technique [0002] Natural gas hydrate is an ice-like clathrate compound formed by host-guest molecules at high pressure and low temperature. The advantages of strong gas storage capacity, relatively mild storage environment, safety and high efficiency make natural gas produced in oil and gas fields be processed in the form of hydrate. Storage and transportation have become a new technology that is developing rapidly; the key to the industrialization of hydrate storage and transportation technology is how to generate large-scale and rapid hydrate. [0003] The supergravity technology is one of the key technologies in the process intensification technology. The essence is to achieve the purpose of simulating the supergravity environment through the action of the centrifugal force field. I...

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Problems solved by technology

[0004] The formation process of hydrate is essentially a mass transfer phenomenon. Many scholars have done research on this aspect in the past; they have successively adopted methods such as stirring method, bubbling method, and spraying method to increase the formation rate of hydrate. There are also tubular hydrate reactors, jet-type hydrate reactors, tower-type hydration reactors, etc. in the gas reaction device. The starting point of the design of these hydrate reactors is to enhance heat transfer and mass transfer, but the effect is not very good. Ideally, researchers are beginning to focus on the process intensification technology with high mass transfer rate and microscopic mixing rate—hypergravity technology; the use of hypergravity technology to strengthen the formation of hydrate may change the bottleneck of the industrial application of hydrate storage and transportation technology, Some scholars have also done some research in this area, the literature (Liu Youzhi, Xing Yinquan, Cui Leijun. Research on the gas content of natural gas hydrate in the high gravity rotating packed bed [J]. Chemical Industry Progress, 2007, 26 (6): 853-856) on The gas content of natural gas hydrate synthesized in the rotating packed bed was measured, and the results showed that the high-gravity technology has great advantages in the synthesis of natural gas hydrate; 200710032642.X, Publication (Announcement) No. CN 101225338A) proposed a circumferential high-speed injection of gas to generate a strong centrifugal force field to enhance heat transfer and mass transfer during hydrate formation; but generally speaking, The use of supergravity technology to enhance the synthesis rate of hydrates is still in the development and research stage. The hypergravity equipment used has the following problems: high energy consumption, high-speed injection of gas, easy to cause metal fatigue, and high requirements for materials , The gas-liquid contact time is too short, which is not conducive to the synthesis of hydrates, the synthesis process is uneven, the system stability is poor, and it is easy to cause blockage, etc. Therefore, it is urgent to design a set with uniform process, good stability, and high energy utilization. Industrial Hydrate Production Plant

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