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Table 7.7: Stream Data for Hot Stream Before Heat Integration

Table 7 7: Stream Data for Hot Stream Before Heat Integration

Related Figures (29)

Process Flow Diagram for Butadiene Production
Process Flow Diagram for Butadiene Production
Figure 7.1: Onion Diagram for Pinch Technology based on the dlagram above, tne core of tne onion Is representing a reactor system, vhere the design of a process starts. Once all the basis, especially flowrates and oncentration are known the separator on the second layer of the diagram, can be design. The same principle applies to the heat exchanger network and the last layer, utilities. Heat >»xchanger network (HEN) is considered as one of the main techniques of energy saving. HEN synthesis is the heat integration of both hot and cold process streams in order to minimize ooling and heating energy consumption [4]. These networks are designed to reach energy araets with the aid of pinch analvsis method. According to [1], process integration (PI) can be defined as a powerful tool fo esigning as well as optimizing processes in terms of efficiency in the usage of energy lectricity, water and other utilities or resources, and also sustainability. Process integratior rst Known in the late 1970s with the drive of cost saving operation in chemical industry [2] he initial focus as on systematic methods for the design of a particular equipment, that wa: eat exchanger, regarding network problem. The ideas of PI then developed into broade spects in the industry such as minimization of water and wastewater. PI may be achievec sing multiple approaches which include pinch analysis. concentration are known the separator on the second layer of the diagram, can be design. aspects in the industry such as minimization of water and wastewater. PI may be achieved
Figure 7.1: Onion Diagram for Pinch Technology based on the dlagram above, tne core of tne onion Is representing a reactor system, vhere the design of a process starts. Once all the basis, especially flowrates and oncentration are known the separator on the second layer of the diagram, can be design. The same principle applies to the heat exchanger network and the last layer, utilities. Heat >»xchanger network (HEN) is considered as one of the main techniques of energy saving. HEN synthesis is the heat integration of both hot and cold process streams in order to minimize ooling and heating energy consumption [4]. These networks are designed to reach energy araets with the aid of pinch analvsis method. According to [1], process integration (PI) can be defined as a powerful tool fo esigning as well as optimizing processes in terms of efficiency in the usage of energy lectricity, water and other utilities or resources, and also sustainability. Process integratior rst Known in the late 1970s with the drive of cost saving operation in chemical industry [2] he initial focus as on systematic methods for the design of a particular equipment, that wa: eat exchanger, regarding network problem. The ideas of PI then developed into broade spects in the industry such as minimization of water and wastewater. PI may be achievec sing multiple approaches which include pinch analysis. concentration are known the separator on the second layer of the diagram, can be design. aspects in the industry such as minimization of water and wastewater. PI may be achieved
Figure 7.2: Pinch Point Diagram
Figure 7.2: Pinch Point Diagram
Table 7.2: Common range of ATmin values [6] common range of ATmin value of Known industrial sector as shown in Table 7.2.
Table 7.2: Common range of ATmin values [6] common range of ATmin value of Known industrial sector as shown in Table 7.2.
Table 7.3: Shifted Temperature for ATmin = 10°C The second step is to identify heat balance with the shifted temperature interval by the temperature scale from interval to interval, then the largest negative heat flow as the obtained minimum hot utility. Pinch temperature is determined at which the interva
Table 7.3: Shifted Temperature for ATmin = 10°C The second step is to identify heat balance with the shifted temperature interval by the temperature scale from interval to interval, then the largest negative heat flow as the obtained minimum hot utility. Pinch temperature is determined at which the interva
Figure 7.8: Feasibility Study at Above Pinch any crossed lines and the temperature difference are more than ATmin.
Figure 7.8: Feasibility Study at Above Pinch any crossed lines and the temperature difference are more than ATmin.
Figure 7.9: Feasibility Study at Below Pinch
Figure 7.9: Feasibility Study at Below Pinch
Figure 7.11: Feasibility Study of First Loop There is no ATmin violation in the first loop as both AT is not less than ATmin which is 10°C Heat Load of Heat Exchanger B = 1,277.94 kW — 432.44 kW = 845.50 kW
Figure 7.11: Feasibility Study of First Loop There is no ATmin violation in the first loop as both AT is not less than ATmin which is 10°C Heat Load of Heat Exchanger B = 1,277.94 kW — 432.44 kW = 845.50 kW
Figure 7.13: Feasibility Study of Second Loop Heat Load of Heat Exchanger G = 1,219.32 kW — 74.25 kW = 1,145.07 kW There is also no ATmin violation in the second loop as both AT is not less than ATmin which
Figure 7.13: Feasibility Study of Second Loop Heat Load of Heat Exchanger G = 1,219.32 kW — 74.25 kW = 1,145.07 kW There is also no ATmin violation in the second loop as both AT is not less than ATmin which
Figure 7.16: Grand Composite Curve (GCC)
Figure 7.16: Grand Composite Curve (GCC)
Figure 7.17: Process Flow Diagram Before Heat Integration
Figure 7.17: Process Flow Diagram Before Heat Integration
* Heat exchanger: A = E-101, B= E-110, E=E-111, G=E-112 Figure 7.18: Process Flow Diagram After Heat Integration
* Heat exchanger: A = E-101, B= E-110, E=E-111, G=E-112 Figure 7.18: Process Flow Diagram After Heat Integration
7.14.2 Minimum Cooling and Heating Requirement minimizing the external utilities such as heating and cooling requirement. This can also
7.14.2 Minimum Cooling and Heating Requirement minimizing the external utilities such as heating and cooling requirement. This can also
Table 7.12: Percentage Saving of Cold and Hot Utilities’ Cost
Table 7.12: Percentage Saving of Cold and Hot Utilities’ Cost
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