It is difficult to raise the temperature at the outlet of the 200,000-liter diesel hydrogenation heater
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We use a cylindrical furnace; sometimes the temperature in the radiation chamber reaches 800 degrees, yet the outlet temperature doesn’t increase. At other times, the temperature in the radiation chamber is around 700 degrees, and only then does the temperature rise when the viewing port is opened. The air supply has also been adjusted, and now the negative pressure is maintained at -30
Are there any significant fluctuations in the amount of circulating hydrogen?
The bed temperature rise is too low, resulting in low heat exchanger efficiency; without affecting subsequent separation, avoid using cross-flow configurations. There is too much excess hydrogen in the circulating hydrogen. Reduce the furnace tube flow rate.
Increase oxygen content by 2–6%, reduce negative pressure; adjust the salt concentration in the exchange process. Change the water injection point, and apply cold hydrogen control to maintain a stable flow rate of recycled hydrogen into the reactor