Add perturbed hydrogen to the feed heater of the hydrogenation unit
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By introducing perturbed hydrogen into the feed heat exchanger of the hydrogenation unit, the feed material undergoing heat exchange is disturbed within the exchanger, which reduces the heat exchange dead zones in this exchanger. As a result, the heat exchange efficiency improves, and the amount of fuel required by the heating furnace is reduced, thereby achieving energy savings and cost reduction.
That sounds quite innovative. Could you explain the production process in more detail?
Mixing the raw material with hydrogen before heat exchange, and then exchanging heat with the reaction products, will improve the efficiency of heat exchange; I wonder if that’s the case
Disturbed hydrogen also has its drawbacks; for example, it increases resistance and thus raises the energy consumption required for production. Also, could someone explain how the amount of perturbed hydrogen is calculated? This value generally remains constant in our case
Hehe, it would be better to design a hydrogen mixing process right at the furnace from the start; that way, scaling won’t occur as easily.
Is the raw material first mixed with hydrogen and then subjected to heat exchange? Is that so? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
This is normal wax and residue from diesel – something that occurs during the conversion of diesel. It is added to prevent the oil from having too high a viscosity, which could cause problems with its flow through the heat exchanger; hydrogen lines are included to increase the flow rate and facilitate heat exchange
Hehe, the term “perturbed hydrogen” sounds novel; it’s either hydrogen mixing in front of the furnace, or nowadays, there’s not much mixing of hydrogen behind the furnace
Disturbing the hydrogen means that, before the crude oil is pressurized by a high-pressure feed pump and sent into the high-pressure heat exchanger, high-pressure hydrogen is mixed with it and fed together into the shell side of the crude oil heat exchanger. It prevents dead zones, enhances heat exchange efficiency; in emergency situations, it allows an increased amount of fluid to be used in order to lower the temperature of the crude oil after heat exchange, thereby rapidly reducing the temperature at the furnace outlet and ensuring that the temperature at the reactor inlet is brought down to a safe level
Generally, the outlet of the raw material pump is connected to purge hydrogen, which is used to purge the pipelines during shutdown – is it at a similar location?
It seems that this perturbed hydrogen is quite novel; could the original poster draw a flowchart to show everyone?
Does anyone know approximately how much perturbed hydrogen is used? How was it calculated?
Is there any difference from mixing hydrogen before the furnace (mixing hydrogen before heat exchange)? Can you provide a diagram?