A kind of gas hydrate promoter and preparation method thereof

A gas hydrate and accelerator technology, which is applied in gas fuels, chemical instruments and methods, and other chemical processes, etc., can solve the problems of insufficient hydrate promotion efficiency, low recycling rate, hindering hydrate, etc., so as to shorten the generation time. time, the effect of promoting good, the effect of reducing the balance point

Active Publication Date: 2018-08-14
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, generally speaking, the biggest problem with these existing accelerators is that they do not degrade. 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 hydrate industrialization; and the recycling 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 gas hydrate promoter and preparation method thereof
  • A kind of gas hydrate promoter and preparation method thereof
  • A kind of gas hydrate promoter and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The selected surfactant ratio is 7% phosphatidylethanolamine + 12% hexan, and the experimental gas is CO 2 , the accelerator concentration in the aqueous solution is 300-800ppm, and the temperature is 280K. Experiments are carried out with the above method, and the experimental data are shown in Table 1.

[0036] Table 1 Experimental results

[0037]

Embodiment 2

[0039] The selected surfactant ratio is 9% phosphatidylethanolamine + 13% hexan, and the experimental gas is CO 2 , the accelerator concentration in the aqueous solution is 300-800ppm, and the temperature is 280K. Experiments are carried out with the above method, and the experimental data are shown in Table 2.

[0040]Table 2 Experimental results

[0041]

[0042]

Embodiment 3

[0044] The selected surfactant ratio is 11% phosphatidylethanolamine + 15% hexan, and the experimental gas is CO 2 , the accelerator concentration in the aqueous solution is 300-800ppm, and the temperature is 280K. Experiments are carried out with the above method, and the experimental data are shown in Table 2.

[0045] Table 3 Experimental results

[0046]

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Abstract

The invention relates to the technical field of industrial production and utilization of gas hydrates, in particular to a gas hydrate accelerant and a preparation method thereof. The preparation method includes weighing phosphatidyl ethanolamine, hexosan and distilled water, and preparing a mixed water solution with 7%-11% (by mass) phosphatidyl ethanolamine and 12%-15% (by mass) hexosan; pouring the mixed water solution into a stirring kettle, and stirring for 40-45 minutes at 30-40 DEG C so as to obtain the gas hydrate accelerant.

Description

technical field [0001] The invention relates to the technical field of gas hydrate industrial production and utilization, in particular to a hydrate accelerator and a preparation method thereof. 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. Natural gas hydrate is one of the most studied ones; according to the latest research results, the carbon storage hidden in natural gas hydrate is considerable, and its amount is twice as much as the carbon storage in all fossil fuels that have been explored so far. Moreover, natural gas hydrate has a strong gas storage capacity, 1m 3 The natural gas hydrate can generally store 164m 3 natural gas. In recent years, gas hydrate technology has been involved in more and more fields, mainly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/00C10L3/10
CPCC09K3/00C10L3/10
Inventor 饶永超郑亚星王树立代文杰梁俊刘广豪王少雄
Owner CHANGZHOU UNIV
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