A new device and method for rapid and continuous generation of hydrates on trays

A technology of hydrates and trays, applied in feeding devices, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as storage difficulties, slow hydrate formation steps, and limited gas-liquid interface mass transfer, etc., to achieve Enhanced self-cleaning ability, stable impact-resistant mechanical properties, and reasonable device structure design
CN110280203BActive Publication Date: 2021-05-28ZHENGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHENGZHOU UNIV
Publication Date
2021-05-28

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Abstract

A new type of rapid and continuous hydrate generation device with trays, including a reactor, the reactor includes an inner cylinder and an outer cylinder, and a sieve plate inclined toward the outer cylinder is arranged between the inner cylinder and the outer cylinder; a gas outlet is arranged on the top of the outer cylinder , the bottom is provided with a circulating water outlet and a discharge port, wherein the discharge port is located above the sieve plate; the inner cylinder is a cylindrical structure with upper and lower openings, and a gas distributor and a water jet are arranged under the bottom of the inner cylinder ; Several layers of trays are arranged vertically along the axial direction of the inner cylinder. At the same time, the invention also discloses a method for preparing hydrate using it. The invention applies the three-dimensional mass transfer tray to the formation of hydrate for the first time, which not only accelerates the reaction, but also conducts mass transfer between the gas-liquid two-phase on the three-dimensional tray, and realizes the full turbulent renewal of the gas-liquid-solid three-phase interface ; Effectively solve the two major problems of rapid renewal of gas, liquid and solid three-phase interface and rapid removal of hydration reaction heat in hydrate formation.
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Description

technical field

[0001] The invention belongs to the technical field of natural gas hydrate preparation, and in particular relates to a novel device and method for rapid and continuous generation of hydrate by trays. Background technique

[0002] Hydrate is a special kind of encapsulation compound: it is a non-stoichiometric compound formed by enveloping guest molecules in cage-shaped cavities formed by hydrogen bonds between water molecules under certain temperature and pressure conditions. The guest molecules mainly include some small molecular gases (H 2 、CH 4 , N 2 , CO 2 、C 2 h 4 、C 2 h 6 etc.) and some non-gas molecules [bromomethane (CH 3 Br), tetrahydrofuran (THF), cyclopentane (CP), tetrabutylammonium bromide (TBAB), etc.]. At present, the most researched is gas hydrate. Natural gas has many components, the main component of which is methane gas. As a cost-effective energy source, methane hydrate has received extensive attention. Under standard conditions, ...

Claims

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