Sulfuric acid is widely used in chemical fertilizer industry, petrochemical industry, iron and steel industry, non-ferrous metallurgical industries. One of the largest consumers of sulfuric acid is a chemical fertilizer industry. Sulfuric acid in the dye industry, chemical fiber industry, plastics industry, the nuclear industry and the aerospace industry, etc. There are some applications.
The design is an annual output of 100,000 tons of sulfuric acid into a 100% section. During the design process, first of all, familiar with the sulfuric acid, sulfur dioxide in nature, uses and industrial development. Understanding of the manufacture of sulfuric acid in two ways, contact the Law and nitrification. The design of the main method used in manufacture of sulfuric acid exposure. Familiar with the sulfur dioxide and then into the transformation process theory and process operating conditions and the reasons selected. The process of selection into the type of catalyst used and determine its usage. Finally, determine the process, the use of two three or four paragraphs into a period-style process. Then the process of the selected material and heat balance, as well as the main process equipment, heat exchanger size to carry out the calculation and selection process to determine the general size converter.
Conversion projects in order to save energy, reduce costs, the use of sulfur dioxide gas into the cold air preheat furnace, while reducing the transformation temperature, recovery of the heat converter. Determination of heat exchanger is determined in accordance with heat exchanger heat transfer area to meet the requirements of the standard selection of heat exchanger, heat exchanger and heat transfer coefficient and heat transfer to the checking area.
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