Application of amino acid as hydrate accelerant and application of amino acid as hydrate accelerant in capturing and sealing of carbon dioxide

Abstract

The invention discloses application of amino acid as a hydrate accelerant and application of amino acid as the hydrate accelerant in capturing and sealing of carbon dioxide. The application of amino acid as the hydrate accelerant is particularly application of amino acid as a CO2 hydrate accelerant. The application of amino acid as the hydrate accelerant in the capturing and the sealing of carbon dioxide comprises the following steps: (1) uniformly mixing 100 parts by weight of water and 0.01-3 parts by weight of amino acid, so as to obtain an amino acid water solution; (2) injecting the amino acid water solution into a high-pressure reaction kettle; (3) introducing high-pressure CO2 gas into the high-pressure reaction kettle to react, so as to obtain solid CO2 hydrate with high air storage density, thereby realizing the efficient capturing and sealing of carbon dioxide. By utilizing amino acid as the CO2 hydrate accelerant, the application meets the scientific concept of ''environmental friendliness'' and economic and efficient, the hydration induction time can be greatly shortened, and the gas capturing capacity can be increased.

Description

technical field [0001] The invention belongs to the technical field of carbon dioxide capture and sequestration, and in particular relates to [0002] Impurities and their applications in carbon dioxide capture and storage. Background technique [0003] With the development of the economy, energy and environmental issues have increasingly become the focus of attention. The combustion of fossil fuels produces a large amount of carbon dioxide (CO 2 ). Currently, CO in the atmosphere 2 The concentration has exceeded 400 ppm, while the CO in the atmosphere before the industrial age 2 Concentration is less than 300 ppm, high concentration CO 2 The resulting room temperature effect leads to a series of environmental and climate problems. [0004] As humans pay more attention to the greenhouse effect, various CO 2 Capture and storage technologies have emerged one after another. Hydrate technology as an emerging technology in CO 2 The area of ​​capture and storage is playin...

AI Technical Summary

Problems solved by technology

However, the current use of hydrate technology for CO 2 There are two key problems in the capture and storage of gas hydrates: slow gas hydrate formation and low gas storage capacity.

Introducing porous media such as silica gel, activated carbon, graphene, etc. into the hydrate system can improve the kinetics of hydrate formation and increase the CO 2 However, these methods have higher production costs and are far from meeting the needs of industrial production.

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