Selection and design of heat exchangers
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The following design modifications are planned to be carried out on-site: An electric heating furnace will be installed in front of the medium-temperature shift reactor. Due to the high requirements for gas purity in such furnaces, local scaling of the furnace tubes often occurs, leading to tube explosions due to overheating. It is planned to use 3.7 MPa medium-pressure steam as a heat source to preheat the syngas before it enters the shift reactor. Is this approach feasible? What size should the heat exchange area be? What are some good methods for handling the condensate? Please provide guidance. What is the flow rate of the 3.7 MPa heating steam and the 420°C superheated steam? ? ? ? Heated gas: 2.0 MPa, 100°C, flow rate: 8800 Nm3/h. What is the heat exchange area? ? ? ? Model selection? ? ? ? I seek guidance from the experienced members of this forum
What is the composition of the heated gas, and what are the inlet and outlet temperatures?
Use HTRI to calculate it; the condensate goes into the condenser.
3.55 2.677 62.122 0 0.231 1.011 30.173 0.174 0.063 0 C02 CH4 H2 O2 N2 H2O C0 C2H4 C2H6 C2H2 Import temperature: 90°C Export temperature: 310℃