A kind of degradable hydrate accelerator and its preparation method and application

A kind of hydrate accelerator and accelerator technology, which is applied in the direction of carbon compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of insufficient hydrate promotion efficiency, low reuse rate, and hindering hydrate, so as to achieve high-efficiency promotion Generation, low cost, effect of lowering the balance point

Active Publication Date: 2017-10-20
泉州职业技术大学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, generally speaking, the biggest problem with these existing accelerators is that they are not degradable. If they are directly discharged into circulating water bodies or into the soil, they will easily cause varying degrees of damage to the environment and hinder the realization of the industrialization of hydrates.
Moreover, the reuse rate is low, the promotion efficiency of hydrate formation is still not high enough, the cost is high, and the economy is poor

Method used

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  • A kind of degradable hydrate accelerator and its preparation method and application
  • A kind of degradable hydrate accelerator and its preparation method and application
  • A kind of degradable hydrate accelerator and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The selected surfactant ratio is 12% glycerophospholipid + 20% alginic acid, and the experimental gas is CO 2 , the accelerator concentration in the aqueous solution is 300-800 ppm, and the temperature is 7.5°C. Experiments were carried out with the above method, and the experimental data are shown in Table 1.

[0041] Table 1 Experimental results

[0042] Experiment number

Embodiment 2

[0044] The selected surfactant ratio is 18% glycerophospholipid + 27% alginic acid, and the experimental gas is CO 2 , the accelerator concentration in the aqueous solution is 300-800 ppm, and the temperature is 6.3°C. Experiments were carried out with the above method, and the experimental data are shown in Table 2.

[0045] Table 2 Experimental results

[0046] Experiment number

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Abstract

The invention relates to the technical field of gas hydrate production and utilization, in particular to a degradable hydrate accelerator and its preparation method and application. The degradable gas hydrate accelerator is composed of glycerophospholipids, alginic acid and deionized water; the mass concentrations of glycerophospholipids and alginic acid are 12-18% and 20-27% respectively, and the rest is deionized water. The product of the present invention is degradable, environmentally friendly and pollution-free, and truly realizes industrial greening; low cost, good economy, safe use, and wide application; the promotion effect of hydrate formation is good, and the formation of hydrate can be reduced within the range of 1°C to 15°C The pressure is 40~60%, and the generation time is shortened by 70~85%.

Description

technical field [0001] The invention relates to the technical field of gas hydrate production and utilization, in particular to a preparation method of a degradable and high-efficiency accelerator capable of strengthening the formation of carbon dioxide gas hydrate. It can also be used to promote the formation of natural gas, oxygen and other gas hydrates. Background technique [0002] Gas hydrate is a non-stoichiometric clathrate crystal compound similar to ice formed by the interaction of guest molecules with water at a certain temperature and pressure. At present, there are mainly three types of gas hydrate structures: type I, type II and type H. [0003] In recent years, gas hydrate technology has been involved in more and more fields, mainly including natural gas storage and transportation, gas separation, seawater desalination, sewage treatment, solution concentration, air conditioning cold storage, etc. With the development of hydrate application technology research...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/50
Inventor 王树立郑亚星饶永超常凯文创杨燕代文杰戴源刘倩
Owner 泉州职业技术大学
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