Graphene oxide gas hydrate accelerator and preparation method thereof

A gas hydrate and graphene technology, applied in chemical instruments and methods, gas fuels, methods of chemically changing substances by atmospheric pressure, etc., can solve the problems of unsatisfactory, low gas storage density of hydrates, etc. Achieve the effect of improving production economic benefits, low cost, and increasing gas storage density

Active Publication Date: 2017-01-25
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, although this type of surfactant can accelerate the hydrate formation rate, it is still unsatisfactory, and the gas storage density of hydrate is not high.

Method used

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  • Graphene oxide gas hydrate accelerator and preparation method thereof
  • Graphene oxide gas hydrate accelerator and preparation method thereof
  • Graphene oxide gas hydrate accelerator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The selected accelerator SM1 has the following components: graphene oxide concentration (wt) 0.1%, sodium chloride (NaCl) concentration (wt) 0.30%. Add deionized water and stir at 50°C for 70 minutes to prepare a graphene oxide dispersion. The experiment was done with methane gas at a temperature of 6.3°C, and the experimental procedure was the same as above. The experimental results are shown in Table 2. The experimental steps are the same as above.

[0044] Table 2 Experimental results

[0045] Experiment number Mass concentration (wt%) Induction time (min) Phase equilibrium pressure (MPa) 1 0.1 7.56 3.87 2 0.2 7.37 3.75 3 0.3 7.02 2.82 4 0.4 6.78 2.64 5 0.5 5.89 2.34 6 0.6 5.54 2.20

Embodiment 2

[0047] The selected accelerator SM5 is composed of the following components: graphene oxide concentration (wt) 1%, sodium chloride (NaCl) concentration (wt) 3%. Add deionized water and stir at 50°C for 70 minutes to prepare a graphene oxide dispersion. The experiment was done with methane gas at a temperature of 6.2°C, and the experimental procedure was the same as above. The experimental results are shown in Table 3. The experimental steps are the same as above.

[0048] Table 3 Experimental results

[0049]

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Abstract

The invention belongs to the technical field of generation and utilization of a gas hydrate, specifically discloses a purpose of oxidized graphene powder in preparing a gas hydrate accelerant, and discloses an oxidized graphene gas hydrate accelerant and a preparation method of the oxidized graphene gas hydrate accelerant. The oxidized graphene gas hydrate accelerant is a dispersion liquid of oxidized graphene, wherein the dispersion liquid comprises, by mass percentage: 0.1-1% of graphene, and 0.3-3.5% of sodium chloride, with the balance being distilled water. The accelerant can further be used for accelerating generation of other gas hydrates, such as hydrates of natural gas, carbon dioxide, and oxygen. The accelerant is good in effect of generating and accelerating the hydrate, wide in application, low in cost, and less in use amount. The condition for generating the hydrate is lowered and the time is shortened; the gas storage capacity is increased; and the economic benefit for producing hydrates is effectively improved.

Description

technical field [0001] The invention relates to the technical field of gas hydrate formation and utilization, in particular to a novel accelerator for accelerating the formation of methane gas hydrate. It can also be used to promote the formation of natural gas, carbon dioxide, oxygen and other gas hydrates. Background technique [0002] At present, the development of new technologies based on the application of gas hydrates is not only developing rapidly in the fields of energy and environmental protection, but also has made significant progress in some other fields, such as solid-state transportation and storage of natural gas, natural gas hydrates as vehicle fuels, hydration based New separation technologies for substances (seawater desalination technology, concentration of organic aqueous solutions, separation of gas mixtures and near-critical and supercritical extraction, etc.), as well as bioengineering and new materials based on hydrates. However, the application of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00B01J3/00C10L3/08
Inventor 王树立代文杰饶永超刘波康甜甜常凯戴源刘墨夫刘朝阳姜英豪
Owner 泉州职业技术大学
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