Control of raw material atomization steam flow rate
Thread Content
How to select an appropriate range for the steam flow rate used for atomizing the feed in the lift pipe, so as to ensure effective atomization of the raw material while simultaneously reducing the energy consumption of the plant?
Adjust the distribution of steam in the stripping section in a timely manner according to changes in raw materials and operational requirements, to improve the stripping efficiency. Optimizing the steam flow rate for material atomization ensures both good atomization of the material and low steam consumption. For a 3.5 Mt/a heavy oil catalytic unit, controlling the atomization steam at around 3% is sufficient to meet the requirements for raw material atomization; in practice, it is strictly maintained at ≤4%.
The control of flow rate also needs to take into account the design requirements of the nozzle, right?
This is only for your reference; you can use the design specifications of the nozzle to find appropriate values within this range, depending on the properties of the raw materials
Isn’t it a flow-limiting orifice plate? The traffic volume has been fixed.
The flow restrictor or orifice plate of a flow meter is the maximum amount that is allowed to pass through, right?
Different types of nozzles require varying amounts of atomized steam, generally not exceeding 5%, and this amount can be adjusted appropriately depending on the properties of the raw material.
Adjusted according to the nozzle’s technical specifications