Process introduction
Chemical production technologies are usually proposed for certain products or raw materials, such as the production of vinyl chloride, the synthesis of methanol, the production of sulfuric acid, coal gasification, etc. Therefore, it has the particularity of individual production; However, the aspects involved in its content are generally: the selection of raw materials and production methods, process organization, the role of the equipment used (reactors, separators, heat exchangers, etc.), structure and operation, the influence of catalysts and other materials, the determination of operating conditions, production control, product specifications and by-product separation and utilization, as well as safety technology and technical economy issues. Modern chemical production is realized with the application of basic scientific theories (chemistry and physics, etc.), chemical engineering and principles and methods, as well as knowledge and techniques of other relevant engineering disciplines. The main development trends of modern chemical production technology are: the large-scale production of basic chemical industry, the full utilization of raw materials and by-products, the adoption of new raw material routes and new catalysts (including new reactions), the reduction of energy consumption, the prevention of environmental pollution, the automation of production control, and the optimization of production.