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Static fast generation process for refrigerant gas hydrate

A refrigerant gas and hydrate technology, applied in chemical instruments and methods, climate sustainability, sustainable manufacturing/processing, etc., can solve problems that have not been discovered and hinder applications, and achieve saving initial investment and operating costs, saving The effect of efficient and reasonable utilization of operating costs and energy

Inactive Publication Date: 2006-02-08
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effects of surfactants or additives on the formation of refrigerant gas hydrates in these literatures all occur in systems with stirring or circulation pump disturbances, and there are also shortcomings in the above-mentioned disturbances, which hinder their practical application.
In further searches, no literature reports identical or similar to the subject of the present invention have been found

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Put the φ20×L200 test tube containing 26.17g of sodium dodecylbenzenesulfonate aqueous solution with a mass percentage of 0.038 and 10.00g of R141b liquid into a constant temperature bath at 1°C, pass through the two-phase interface and contact the side wall of the test tube The iron wire can induce R141b gas hydrate to generate hydrate at the contact point between the iron wire and the side wall within 10 minutes, and the hydration reaction is completed in 60 minutes.

Embodiment 2

[0021] Put the φ20×L200 test tube containing 26.17g of sodium lauryl sulfate aqueous solution with a mass percentage of 0.038 and 10.00g of R141b liquid into a constant temperature bath at 3°C, pass through the two-phase interface and contact the stainless steel with the side wall of the test tube The wire can induce R141b gas hydrate to generate hydrate at the contact point between the stainless steel wire and the side wall surface within 30min., and the hydration reaction is completed within 100min.

Embodiment 3

[0023] Put the φ20×L200 test tube containing 26.17g of sodium dodecylsulfonate aqueous solution with a mass percentage of 0.038 and 10.00g of R141b liquid into a constant temperature bath at 5°C, pass through the two-phase interface and contact the side wall of the test tube Copper wire can induce R141b gas hydrate to generate hydrate at the contact point between copper wire and side wall surface within 50min., and the hydration reaction is completed in 400min.

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PUM

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Abstract

The present invention is fast static refrigerant gas hydrate creating process and belongs to the field of energy saving technology. The process includes making metal wire pass through the interface between anionic surfactant aqua and refrigerant and contact with container wall, making the metal wire moving instantaneously along the wall for fast forming crystal seed of the refrigerant gas hydrate at the contact between the metal wire and the wall, and fast growth of the refrigerant gas hydrate under the action of the surfactant in still water. The said method may be used widely in accumulating energy for peak-trough balance.

Description

technical field [0001] The invention relates to a gas hydrate generation method, in particular to a static rapid generation method of refrigerant gas hydrate. It belongs to the field of energy saving. Background technique [0002] In urban buildings, air conditioners are one of the largest consumers of electricity, accounting for more than half of the total electricity consumption of buildings during peak season (summer). Air-conditioning cold storage and shifting peak power saving technology is an important means to achieve urban power supply balance and building energy saving. At present, refrigerant gas hydrate is more suitable as an air-conditioning cold storage medium. The decomposition enthalpy of refrigerant gas hydrate is equivalent to the cold storage density of ice, which is 334kJ / kg; The situation is similar; refrigerant gas hydrate can be formed and decomposed by direct contact between refrigerant and water, which eliminates heat transfer resistance and greatly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/06
CPCY02P20/10
Inventor 李金平郭开华王如竹梁德青
Owner SHANGHAI JIAOTONG UNIV
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