A method for burning desulfurization of petroleum coke and reducing the content of Glauber's salt in the glass industry

Abstract

The invention discloses a method for burning and desulfurizing petroleum coke and reducing the content of Glauber's salt in the glass industry. Petroleum coke powder and activated calcium oxide are mixed evenly in proportion, and then sent into a melting furnace through a fuel nozzle with high-pressure air. The petroleum coke A large amount of sulfur dioxide produced during the combustion process of the powder reacts with activated calcium oxide to form calcium sulfate in an oxidized and high-temperature environment to achieve clean combustion of petroleum coke powder; the generated calcium sulfate solids are evenly scattered in the glass tank kiln and mixed with the glass batch The sulfur-containing raw materials together play a clarifying role, reducing the use of Glauber's salt. In this method, while desulfurization of petroleum coke is realized, the desulfurization product is directly used as a clarifying agent to partially replace the amount of Glauber's salt, so that the content of Glauber's salt in the glass component is reduced to 0.5%~1.9%, and the SO in the furnace flue gas x The total content is directly reduced by 5%~15% when leaving the furnace, which effectively controls the SO in the glass melting process. x emissions, the desulfurization products can be used efficiently in situ, without causing secondary pollution, and greatly reducing the cost of desulfurization.

Description

technical field [0001] The invention relates to the technical fields of building materials and environmental protection, in particular to a method for burning and desulfurizing petroleum coke and reducing the content of Glauber's salt in the glass industry. Background technique [0002] The glass industry is an industry with high energy consumption and high pollution. The combustion of fuel in glass melting furnaces will produce a large amount of flue gas. The types and contents of pollutants in the flue gas depend on the fuel used. Fuels commonly used in glass melting furnaces include heavy oil, natural gas, producer gas, petroleum coke, etc. Heavy oil has a high calorific value, and the quality of glass produced when used as fuel is good, but resources are scarce and fuel costs are high; natural gas is a clean energy that can reduce sulfur dioxide and dust emissions by nearly 100%, and reduce carbon dioxide emissions by 60% and nitrogen The emission of oxygen compounds is...

AI Technical Summary

Problems solved by technology

However, petroleum coke has high sulfur content and serious combustion pollution. When 1kg of petroleum coke is burned, about 1000mg of sulfur dioxide is produced, which increases the economic investment of enterprises in reducing emissions. The promotion and application in the glass industry is restricted by environmental protection.

[0004] Sulfur dioxide is the main pollutant in glass production. There are many prevention and control methods at present, including high-altitude emission, fuel low-sulfurization, and exhaust gas desulfurization. Among them, the exhaust gas desulfurization technology is mature and the effect is good, but its process and equipment are relatively complicated.

Although there have been many reports on sulfur fixation and desulfurization in the combustion process, most of these technologies are aimed at coal, and a few are aimed at other fuels. For the desulfurization of petroleum coke, a new type of fuel, especially petroleum coke in glass melting The technology of combustion desulfurization in special equipment such as kiln has not been reported.

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