We begin by applying our general mole balance equation (level ①) to a specific reactor to arrive at the design equation for that reactor (level ②). It is the author’s experience that following this structure, shown in Figure 5-1, will lead to a greater understanding of isothermal reactor design. One of the primary goals of this chapter is to solve chemical reaction engineering (CRE) problems by using logic rather than memorizing which equation applies where. 5.1 Design Structure for Isothermal Reactors When we put all these reactions and reactors together, we will see we have designed a chemical plant to produce 200 million pounds per year of ethylene glycol. The design of a packed-bed reactor with pressure drop to form ethylene oxide from the partial oxidation of ethylene. The design of a PFR for the gas-phase pyrolysis of ethane to form ethylene. The design of an industrial CSTR to produce ethylene glycol using k from the batch experiment. The use of a laboratory batch reactor to determine the specific reaction-rate constant, k, for the liquid-phase reaction to form ethylene glycol. We have chosen four different reactions and four different reactors to illustrate the salient principles of isothermal reactor design using conversion as a variable, namely Both batch reactor times and flow reactor volumes to achieve a given conversion will be calculated. Conversion is the preferred parameter to measure progress for single reactions occurring in batch reactors (BRs), CSTRs, PFRs, and PBRs.
I am sure you will be impressed.In this chapter, we use the mole balances written in terms of conversion, shown in Chapter 2, Table S2-1, to study isothermal reactor designs. You can take a look at the demos, compare its features with others available in the market and see for yourself.
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