Multiproduct batch plants

Combining equations (7.4-24)-(7.4-26) gives a system of non-linear equations that can be solved using iterative techniques. Savings in equipment costs as compared to initial guesses are approximately 30 %. The real savings will be lower because the optimal choices for equipment units are usually not available on the chemical equipment market. The standard sizes greater but nearest to the optimal sizes will be selected. The total cost for the standard equipment is very close to the minimum found. Robinson and Loonkar (1972) extended their procedure for multiproduct batch plants. 

Batch chemical processes are broadly categorised into multiproduct and multipurpose batch plants. In multiproduct batch plants, each produced batch follows the same sequence of unit operations from raw materials to final products. However, the... 

It is evident from the foregoing description and diagrams shown in Fig. 1,7a, b that multipurpose batch chemical plants are more complex than multiproduct batch plants. This complexity is not only confined to operation of the plant, but also extends to mathematical formulations that describe multipurpose batch plants. Invariably, a mathematical formulation that describes multipurpose batch plants is also applicable to multiproduct batch plants. However, the opposite is not true. It is solely for this reason that most of the effort in the development of mathematical models for batch chemical plants should be aimed at multipurpose rather than multiproduct batch plants. 

Wastewater Minimisation in Multiproduct Batch Plants Single Contaminants... 

Engell, S., Markert, A., Sand, G. and Schultz, R. (2004) Aggregated scheduling of a multiproduct batch plant... 

Lin, X., Floudas, C.A., Modi, S. and Juhasz, N.M. (2002) Continuous-time optimization approach for medium-range production scheduling of a multiproduct batch plant. Ind. Eng. Chem. Res., 41, 3884-3906. 

I. E. (1997) A mixed-integer linear programming model for shortterm scheduling of single-stage multiproduct batch plants with parallel lines. Ind. Eng. 

Mdndez, C.A. and Cerda, J. (2003b) Dynamic scheduling in multiproduct batch plants. Comput. Chem. Eng., 27, 1247-1259. 

Robust short-term scheduling of multiproduct batch plants under demand uncertainty. Industrial and Engineering Chemistry Research, 40, 4543 1554. 

Ku, H. M. and I. A. Karimi. Multiproduct Batch Plant Scheduling. In CACHE Process Design Case Studies, I. Grossmann and M. Morari, eds. CACHE Corporation, Austin, TX (1992). 

Multipoint attachment theory, 24 247 Multi-point fuel injection system, 10 51 Multiproduct batch processes, 20 723 Multipurpose batch pilot plants, 19 459 Multipurpose canister (MPC), radioactive waste transport in, 25 855 Multipurpose/multiproduct batch plants, 26 1000... 

Part 3 of this book presents a number of major developments and applications of MINLP approaches in the area of Process Synthesis. The illustrative examples for MINLP applications, presented next in this section, will focus on different aspects than those described in Part 3. In particular, we will consider the binary distillation design of a single column, the retrofit design of multiproduct batch plants, and the multicommodity facility location/allocation problem. 

The MINLP model for the retrofit design of a multiproduct batch plant takes the following form ... 

D. B. Birewar and I. E. Grossmann. Incorporating scheduling in the optimal design of multiproduct batch plants. Comp. Chem. Eng., 13 141, 1989. 

V. T. Voudouris and I. E. Grossmann. Optimal synthesis of multiproduct batch plants with cyclic scheduling and inventory considerations. Ind. Eng. Chem. Res., 32 1962,1993. 

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