Diferencias qué hay entre DFP Y DTI, Apuntes de Ingeniería de Procesos

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Competencia CERO Dr. Lorenzo Antonio Cruz Santiago Simulación de Procesos División de Ingeniería Química 1. DIAGRAMS FOR UNDERSTANDING CHEMICAL PROCESSES: “The most effective way of communicating information about a process ¡is through the use of flow diagrams.” 1.1 BLOCK FLOW DIAGRAM (BFD) Block flow diagrams are introduced early in the chemical engineering curriculum. For example, in the first course in material and energy balances, an initial step is to convert a word problem into a simple block diagram. This diagram consists of a series of blocks representing different equiprment or unit operations that are connected by input and output streams. Important information such as operating temperatures, pressures, conversions, and yield are included on the diagram along with flow rates and some chemical compositions. However, the diagram does not include any details of equipment within any of the blocks. The block flow diagram can take one of two forms. First, a block flow diagram may be drawn for a single process. Alternatively, a block flow diagram may be drawn for a complete chemical complex involving many different chemical processes. These two types of diagrams are differentiated by calling the first a block flow process diagram and the second a block flow plant diagram. 1.1.1 Block Flow Process Diagram An example of a block flow process diagram is shown in Figure 1.1, and the illustrated process is described below. Toluene and hyarogen are converted o in a reactor to produce benzene and Toluene <-> meihane. The reaction does not go (10,000 kg/m) Reactor S 0 - eparator to completion, and excess toluene ¡s Benzeno, required. The non-condensable (8210 kg/hn) ————» gases are separated and discharged. Hydrogen (620 kg/n) A Conversion The benzene product and the 75% Toluene ¡Mixed Liquida still unreacted toluene are then separated by distillation. The toluene is then recycled hack to the reactor Toluene and the benzene is removed in the product stream. Reaction: C7Hg + Ha > CgHg + CHg Figure 1.1 Block Flow Process Diagram far tha Production of Benzene ? TURTON, Richara, et al. Analyst sis and design of chemical processes. Pearson Education, 2012,