Throttle is used to reduce the temperature; its calculation depends on the difference in pressure (ΔP) of the inlet and outlet of the reactor. This leads to the need for the reactor’s dimensions. In order to fully evaluate the energy balance around the throttle, it will be done in design section of the project. The temperature after the throttle was decided to be chosen 165 oC(from literature reference) in order to continue the energy balance around the absorber.