Due to the complexity of DWC models, a shortcut modeling approach based on the minimum energy mountain method (also called the "Vmin diagram method") is used to determine good initial values for the decision variables for the rigorous simulation of the DWC configurations.
The optimization framework includes shortcut models developed for the simulation of the existing distillation column, and a retrofit shortcut model for the heat exchanger network.
Rigorous simulations in HYSYS [AEA Technology, Hyprotech Ltd., Calgary, Canada, 2001] have shown good agreement with the shortcut model.
Another three originate from the nature-based paradigm: the natural succession model, the nature-based shortcut model, and the direct approach model.
The shortcut model for pressure swing adsorption (PSA) considering the design conditions (pressure ratio and adsorbent selectivity) is also embedded into the mathematical programming model.
This shortcut model can be used to simulate the composition and temperature of the reboiler, the top and other plates of the column in a batch extractive distillation operation.
In the first design step, the optimal flowsheet structure of simple columns is identified using a superstructure formulation and shortcut models based on rigorous thermodynamics.
This paper presents a numerical study of economics and environmental impact of an integrated steelmaking plant, using surrogate, empirical and shortcut models based on mass and energy balance equations for the unit operations.
In this paper, we present a nonlinear programming approach to the conceptual design of integrated reaction-separation systems using shortcut models point of operation.
However, no shortcut models are available that address retrofit.
