A coal combustion catalyst

Abstract

The invention relates to the technical field of coal combustion additives, particularly a high-efficiency coal combustion catalyst which is prepared from the following raw materials in percentage by weight: 5-15% of triisopropanolamine, 20-30% of alkali plant waste liquid, 20-30% of tert-butyl alcohol, 10-15% of propanediol, 1-5% of rare-earth element compound, 10-15% of nonionic surfactant, 2-6% of isobutanol, 2-6% of NaCl and 3-7% of FeCl3. When being used in the coal combustion process, the coal combustion catalyst can lower the ignition point of the coal and enhance the combustion velocity, thereby enhancing the coal combustion efficiency and lowering the discharge amount of harmful substances. By using the alkali plant waste liquid as the raw material, the coal combustion catalyst changes wastes into valuable substances and lowers the cost.

Description

technical field [0001] The invention relates to the technical field of coal combustion admixtures, in particular to a coal combustion catalyst. Background technique [0002] Coal is mainly composed of elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus, and is the most important primary energy source in my country, accounting for 76% of China's total energy consumption. It is estimated that by 2000, my country's coal output will reach 1.4 billion tons. By 2050, my country's annual coal demand will be about 2.1 billion tons, accounting for about 50% of the primary energy mix. With the rapid development of our country's economy and the dwindling of the world's oil reserves, the position of coal as the main energy source will be more consolidated and will not change for a long time. From the perspective of coal utilization, about 84% of the total coal output is used for direct combustion every year. In addition, there are a small number of clean and hig...

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Problems solved by technology

Coal combustion is a complex oxidation process, which can generally be divided into volatile combustion (called homogeneous combustion) and carbon particle ignition (called heterogeneous combustion). The biggest problem in the combustion and utilization of coal resources is the reason for the low calorific value utilization. Because of the large heat capacity of coal, it is not easy to ignite and transfer heat, and its basic one-way reaction C+O 2 =CO 2 The reaction activation energy is large and prone to negative reactions C+CO 2 = 2CO, which greatly reduces thermal efficiency, of which industrial boilers consume about 300 million tons of coal. Industrial kilns and other furnaces consume about 300 million tons of coal

The traditional combustion method is mostly flame combustion, and the heat emitted is not fully utilized, and because of insufficient combustion, it will inevitably cause a huge waste of energy; on the other hand, the traditional combustion method can also produce a large amount of toxic and harmful gases. , resulting in serious pollution of the environment

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