Nano-composite environment-friendly coal saving agent

Abstract

The invention relates to the field of fuel coal additives, in particular to a nano-composite environment-friendly coal saving agent. The nano-composite environment-friendly coal saving agent comprises, by mass, 5-15 parts of composite catalyst, 6-18 parts of combustion improver, 40-50 parts of penetrating agent, 10-20 parts of swelling agent, 5-10 parts of purificant and 2-8 parts of sulphur-fixing agent. According to the nano-composite environment-friendly coal saving agent, the exothermic reaction between CO and SO which are generated during coal combustion can be accelerated, and sulphur generated during reaction is brunt into SO2 and an extremely small amount of SO3, is finally fixed through adsorbent active carbon, having extremely high adsorption capacity, in the coal saving agent and forms slag with a high melting point; generally, solid sulphur is released again in a high-temperature area at the temperature over 900 DEG C. However, through the catalytic reduction action generated by the coal saving agent, the speed of re-releasing of solid sulphur can also be lowered even at the temperature over 1300 DEG C, and the desulphurization efficiency can reach 62%.

Description

technical field [0001] The invention relates to the field of coal-burning additives, in particular to a nanocomposite environmental-friendly coal-saving agent. Background technique [0002] Coal is one of the main energy and chemical raw materials in my country, and is the most commonly used energy raw material in modern industry; in cities and surrounding areas where power plants, industrial boilers and commercial boilers are highly concentrated, due to the low heat efficiency of coal-fired pathways, combustion equipment cannot The coal supplied to it is completely burned, and the incompletely burned coal carries harmful substances such as sulfur and nitrate and is discharged along with the smoke. The black smoke and waste residue cause environmental pollution and cause energy loss. At the same time, due to insufficient coal combustion, the furnace A large amount of ash will accumulate. In severe cases, the burner nozzle of the boiler will be blocked, and the coke will be stu...

AI Technical Summary

Problems solved by technology

[0002] Coal is one of the main energy and chemical raw materials in my country, and is the most commonly used energy raw material in modern industry; in cities and surrounding areas where power plants, industrial boilers and commercial boilers are highly concentrated, due to the low heat efficiency of coal-fired pathways, combustion equipment cannot The coal supplied to it is completely burned, and the incompletely burned coal carries harmful substances such as sulfur and nitrate and is discharged along with the smoke. The black smoke and waste residue cause environmental pollution and cause energy loss. At the same time, due to insufficient coal combustion, the furnace A large amount of ash will accumulate. In serious cases, the burner nozzle of the boiler will be blocked, and the coke will be stuck in the cold ash hopper, causing ash accumulation. When the coking is the most serious, the boiler is forced to shut down, which brings inconvenience to production and life.

At the same time, during the combustion of coal, sulfur dioxide and a small amount of sulfur trioxide are emitted into the atmosphere, seriously polluting the atmosphere.

[0003] In order to vigorously carry out clean production and reduce pollutant emissions, at present, coal-fired boilers are generally installed with flue gas desulfurization devices. Although the installation of such desulfurization devices on coal-fired boilers has some effect on desulfurization, it is necessary to change the existing coal-fired process and equipment, and the desulfurization effect is not very obvious, and it does not have a combustion-supporting effect on the combustion of boiler coal

Images