Carbon dioxide trapping method

Abstract

The invention relates to a method for capturing carbon dioxide, which comprises the following steps of: adopting a movable air exhaust device or an air exhaust system consisting of a fixed air exhaust device and a floral tube at places which are easy to gather carbon dioxide, such as valleys, dense forests, depressions or underground caves and the like which are closer to a carbon dioxide sealing place or an application place of the carbon dioxide sealing place; carbon dioxide gas is sucked at the position close to the ground before dawn to the morning, so that remote and dispersed capture of the carbon dioxide gas is achieved, the technical and economic problems existing in capture of the carbon dioxide from a flue of a kiln are avoided, the capture territorial range of the carbon dioxide is expanded, more enterprises are attracted to input the capture activity of the carbon dioxide, and the economic benefit is improved. And technical support is provided for realizing net zero emission of carbon dioxide.

Description

technical field [0001] The invention relates to air pollution prevention and control technology, in particular to a carbon dioxide capture method. [0002] technical background [0003] Carbon dioxide capture, utilization and storage (CCUS) is currently the most promising technology route to reduce the carbon dioxide content in the atmosphere. The capture of carbon dioxide is the first link of the technical route. The existing technology mainly captures carbon dioxide from the flue of the kiln. There are many problems in this capture method: (1) The temperature of the capture object is high, and cooling treatment is required. The process is more complicated, not only requires more equipment, but also has high requirements for related equipment; The capture of carbon dioxide often interferes with the dust removal, sulfur removal, and nitrogen removal of flue gas; (3) The distance between the carbon dioxide capture site and its storage site or application enterprise is far aw...

AI Technical Summary

Problems solved by technology

There are many problems in this capture method: (1) The temperature of the capture object is high, and cooling treatment is required. The process is more complicated, not only requires more equipment, but also has high requirements for related equipment; The capture of carbon dioxide often interferes with the dust removal, sulfur removal, and nitrogen removal of flue gas; (3) The distance between the carbon dioxide capture site and its storage site or application enterprise is far away, not only the captured carbon dioxide is transported to its storage The transportation cost to the place or the place of application is very high, and the risk of leakage during transportation is relatively high; (4) The energy consumed in the process of carbon dioxide capture and transportation is relatively large, and the emission of carbon dioxide is correspondingly large; (5) Excessive concentration of capture points is not conducive to other environmental protection enterprises participating in carbon dioxide capture, which is not conducive to the role of other environmental protection enterprises, nor is it conducive to employment; , the capture of carbon dioxide will be interrupted; etc.