Split feed reactor bed in hydrotreater device

A hydrotreater reactor device comprising:

• a reactor chamber including at least a first bed and a second bed, said reactor chamber further including a first input disposed so as to provide a hydrocarbon stream to said first bed and a second input disposed so as to bypass said first bed and provide a hydrocarbon stream to said second bed;
• a differential temperature controller provided to measure a temperature difference across said first bed;
• a control valve provided at said second input and connected to said differential temperature controller, wherein said control valve is operable to adjust an amount of the hydrocarbon stream admitted through said second input based on the temperature difference measured by said differential temperature controller;
• a charge heater providing a hydrocarbon stream as an output through an output line, said output line including a split so that a first branch of said output line is connected to said first input and in fluid communication with said first bed and a second branch of said output line is connected to said second input and in fluid communication with said second bed;
• and
• a restrictor positioned downstream of said split between said charge heater and said first input to control a pressure drop at said first input.