Natural gas storing-transporting-utilizing integrated device based on hydrate technology

Abstract

The invention provides a natural gas storing-transporting-utilizing integrated device based on a hydrate technology. A reaction tank is filled with a kinetic accelerator and a thermodynamic accelerator in advance, and the defects of a low generating speed and a long period of hydrates can be overcome; an atomization device of a circulating liquid feeding system enables reaction water to be atomized into small liquid drops, the contact area between the gas and the water is increased, and generating is accelerated; the cooling capacity of low-temperature natural gas discharged from an LNG tank is fully recycled by a heat exchange system, the cooling capacity of low-temperature natural gas is stored for maintaining a low-temperature environment when the hydrates are generated, and the refrigerating cost is saved; when decomposition is carried out, the decomposition gas can be generated by using depressurization decomposition, and additional heat injection is not required; the decomposition gas is stored in another tank, when the decomposition is excessive, the pressure transfer can be realized until the pressure of the two tanks is equal due to the fact that the two tanks are connected, a self-pressurization phenomenon occurs, the decomposition of the hydrates is limited, and the safety of the device is ensured; and the reaction water is circularly utilized, the generating time ofthe hydrates can be greatly shortened due to the memory effect of the hydrates, and the economical efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of hydrate application and relates to a natural gas storage-transportation-utilization integrated device based on hydrate technology. Background technique [0002] Natural gas is a general term for mixed gases mainly composed of hydrocarbons existing in underground rock reservoirs. As a clean energy source, natural gas can reduce sulfur dioxide and dust emissions by nearly 100%, and reduce carbon dioxide emissions by 60% and nitrogen oxide emissions. 50%, and help to reduce the formation of acid rain, alleviate the global greenhouse effect, and fundamentally improve the quality of the environment. Natural gas has a wide range of uses, and can be used as residential gas, main fuel for power plants, thermal energy, heating, air conditioning and other industrial enterprises, and vehicle energy. [0003] At present, natural gas storage technologies mainly include pipeline transportation and liquefied natural ga...

AI Technical Summary

Problems solved by technology

However, the hydrate storage and transportation of natural gas currently studied by researchers is based on laboratory research conditions, and is rarely combined with practical application production. The problems that need to be solved in practical applications include: long hydrate formation cycle, and the need to maintain hydrate formation. The cost of low temperature environment is high, hydrate decomposition requires additional heat injection, etc., and there is a lack of natural gas transportation and replenishment devices in practical applications

Images