Process integration heat engines

Figure 10.52 Superstmcture for integration of ABCDE process with heat engines.

Swaney, R. 1989. Thermal integration of processes with heat engines and heat pumps. AIChE Journal 35/6,1010. 

Fundamentally, there are two possible ways to integrate a heat engine exhaust. In Fig. 6.31 the process is represented as a heat sink and heat source separated hy the pinch. Integration of the heat engine across the pinch as shown in Fig. 6.31a is coimterproductive. The process still requires QHmm, and the heat engine performs no... 

Unfortunately, the overall design problem is even more complex in practice. Spare driving forces in the process could be exploited equally well to allow the use of moderate utilities or the integration of heat engines, heat pumps, etc. in preference to distillation integration. 

Fundamentally, there are two possible ways to integrate a heat engine exhaust14. In Figure 16.31, the process is... 

Consideration of these results led to the selection of the process configuration as shown in Fig. 1. Three engineering problems need to be considered the recovery and utilisation of waste heat, the separation of the gas streams, and the overall process integration. 

Intensification of catalytic processes involves innovative engineering of the MSR and the simultaneous development of the catalytically active material. The catalyst design should be closely integrated with the reactor design. Intrinsic reaction kinetics, mass and heat transfer, and energy supply or removal must all be considered to obtain a high selectivity and yield of the target product. 

A lower reaction temperature will make possible, for instance, to apply the concept of topping cycle cogeneration, where power is generated introducing a heat engine between the flames and the process fluid. laquaniello et al. [7] reported a specific application for the integration of a gas turbine with a fired heater. 

Glavic P, Kravanja Z, Homsak M (1988) Heat integration of reactors. 1. Criteria for the placement of reactors into process flowsheet. Chemical Engineering Science, 43, 593. 

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