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Degradable hydrate accelerant and preparation method and application thereof

A technology for accelerators and gas hydrates, which is applied in the field of preparation of degradable high-efficiency accelerators, can solve the problems of insufficient hydrate promotion efficiency, low reuse rate, and hindered hydrates, so as to achieve high-efficiency production, low cost, and The effect of lowering the balance point

Active Publication Date: 2015-06-10
泉州职业技术大学
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

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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  • Degradable hydrate accelerant and preparation method and application thereof
  • Degradable hydrate accelerant and preparation method and application thereof
  • Degradable hydrate accelerant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Table 1 Experimental results

[0042] Experiment number Accelerator concentration (ppm) Induction time (min) Phase equilibrium pressure (MPa) 1 300 13.3 2.12 2 400 12 2.04 3 500 9.6 2.05 4 600 8.0 1.97 5 700 6.8 1.86 6 800 6.7 1.75

Embodiment 2

[0045] Table 2 Experimental results

[0046] Experiment number Accelerator concentration (ppm) Induction time (min) Phase equilibrium pressure (MPa) 1 300 12.8 2.00 2 400 11.6 1.89 3 500 7.9 1.80 4 600 6.4 1.73 5 700 4.9 1.72 6 800 4.5 1.72

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Abstract

The invention relates to the technical fields of production and utilization of gas hydrates, in particular to a degradable hydrate accelerant and a preparation method and an application thereof. The degradable hydrate accelerant is prepared from the following raw materials by mass concentration: 12%-18% of glyceryl phosphatide, 20%-27% of alginic acid and the balance of deionized water. The degradable hydrate accelerant provided by the invention is degradable, environment-friendly, free of pollution, low in cost, good in economical performance, safe to use and wide in application range; greening of industry is really realized; the hydrate generation and acceleration effects are good; the hydrate generation pressure can be reduced by 40%-60% within the range of 1-15 DEG C; 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 Applications(China)
IPC IPC(8): C01B31/20C01B32/50
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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