3.10 Product purity

Product purity is an ultimate customer requirement. If these are not fulfilled or low-quality product is supplied to the customer, the expectation of the customer will not be fulfilled. For this reason, quality parameters need to be defined. These parameters are differing in different cases. For example, few quality indexes like physical and chemical characteristics of the product, medicinal effects, toxicity, and shelf life are required to be given in the case of pharmaceutical products. Quality indexes such as taste, nutritional properties, texture, etc. are important in the case of food products. Similarly for products from chemical processes, final composition or product purity as quality index is required.

6. Benefits

easy

Benefits of reactive distillation include:

DOI: http://dx.doi.org/10.5772/intechopen.85433

Reactive Distillation: Modeling, Simulation, and Optimization

• Lower costs—reduced equipment use, reduced energy use, and handling being

• Improved product quality—reducing opportunity for degradation because of

Modeling of RD column involves basic concept of distillation column carrying out reaction in a reactive zone in between the rectifying zone and stripping zone [18–21]. Thus modeling can be represented by various balances for different zones of reactive distillation column. Non-equilibrium modeling was carried out for heterogeneous catalyzed packed RDC using first principle approach. The schematic

• Increased speed of operation

• Less waste and fewer by-products

7. Modeling of heterogeneous catalyzed packed RDC

view of heterogeneous packed RDC is shown in Figure 2. The basic assumptions for this model are as follows:

2. Constant liquid hold up in reactive zone, reboiler, and condenser

1. Constant relative volatility of the components

3. Assuming reactive zone to be a single stage

5. Thorough mixing of vapor and liquid

4.Negligible vapor holdup

Figure 2.

97

Schematic diagram of packed RDC.

less heat requirement
