Mixture for storing and capturing carbon dioxide gas

Abstract

The invention belongs to the field of storage and capture of carbon dioxide, and in particular relates to a mixture for promoting a carbon dioxide hydrate to form. The mixture comprises water and is characterized by also comprising the following components in percent by mass in the term of the mass of the mixture of 100 percent: 3-20 percent of cyclopentane, 1-10 percent of carbon fiber, 0.3-8 percent of surfactant and 1-6 percent of cosurfactant, wherein the surfactant is selected from perfluoropolyether ammonium carbonate, 2-ethylhexyl sulfosuccinate sodium, fluorocarbon surfactant and polyethyleneglycol trimethyl nonyl ether; and the cosurfactant is selected from alcohol, fluoropentanol, n-butyl alcohol, n-amyl alcohol or isoamyl alcohol. The mixture can ensure that the carbon dioxide hydrate is easier and rapider to form, thus the carbon dioxide gas is more efficiently captured.

Description

A mixture for storing and capturing carbon dioxide gas Technical field The invention belongs to the field of carbon dioxide storage and capture, and specifically relates to a mixture that promotes the formation of carbon dioxide hydrate. Background technique As the main component of greenhouse gases, carbon dioxide has attracted more and more attention and is the main target of emission reduction. my country's structure with coal as the main energy source has led to a substantial increase in carbon dioxide emissions with the development of the economy, and has become one of the countries with the largest annual carbon dioxide emissions. The environmental and international pressure on the control of carbon dioxide emissions is increasing. The main methods to achieve greenhouse gas carbon dioxide emission reduction are: energy saving and emission reduction, through technological improvement and development, improving energy utilization, reducing total energy consumption, and red...

AI Technical Summary

Problems solved by technology

However, due to the low solubility of carbon dioxide in water, the formation rate of carbon dioxide hydrate is slow, the crystallization induction time is long, and the conditions for hydrate formation are relatively harsh. However, due to the harsh conditions for the formation of carbon dioxide hydrate, low temperature and high pressure are required. For example, at 0 degrees Celsius, the pressure for carbon dioxide to form hydrate is 1.26MPa), the formation of carbon dioxide hydrate is usually formed at the phase interface, resulting in subsequent The growth of hydrates is difficult, the water content in the generated hydrates is high, and the growth of hydrates is uncertain.