High-efficiency fire coal catalyst

Abstract

The invention discloses a coal-fired catalyst with high efficiency, the coal-fired catalyst essentially comprises the following components in accordance with the mass percentage content: 20 to 40 percent of potassium salt, 10 to 25 percent of industrial grade sodium chloride, 15 to 30 percent of quicklime, 9 to 15 percent of bauxite, 1 to 4 percent of rare earth elements, and 0.1 to 1 percent of ferric oxide, wherein, the main ingredients of the invention are monovalent and divalent alkali metal salts, bauxite and rare earth elements. The coal-fired catalyst has catalytic combustion, sulfur fixing and improvement of the properties of coal combustion, and therefore, the coal-fired catalyst plays a comprehensive role of coal conservation and emission reduction of pollutants, and is suitable for a variety of large-scale civic or industrial coal-fired boilers. The catalyst has simple use, adequate raw materials supply, simple preparation, low price, stable performance and pollution-free for the environment, therefore, the catalyst as an ideal coal-fired catalyst has obvious social and economic benefits.

Description

Technical field [0001] The present invention relates to a catalyst for burning coal, more specifically, it relates to a catalytic combustion-supporting catalyst, sulfur fixation, improvement of coal combustion characteristics, comprehensive effects of saving coal and reducing pollutant discharge, and is suitable for various large-scale catalysts. High-efficiency coal-fired catalyst for domestic or industrial coal-fired boilers. Background technique [0002] Coal is the most important energy in my country, accounting for about 70% of the total energy consumption. Although my country's coal resources are quite rich, with proven reserves of more than 400 billion tons, ranking first in the world, but in terms of coal quality, there are many difficult-to-separate coals in my country, and the proportion of high-ash and high-sulfur coal is large. Medium-high-sulfur coal and high-sulfur coal with a sulfur content of more than 2% account for about 1 / 3 of the total reserves. SO emiss...

AI Technical Summary

Problems solved by technology

[0007] 2. Industrial waste residues and tailings generally contain a large amount of heavy metals, and may also contain radioactive substances, which are likely to cause new environmental pollution

[0008] 3. The main sulfur fixation product CaSO 4 Extremely unstable at high temperature, resulting in very low desulfurization efficiency of sulfur-fixed coal additives