How to improve the pull-out rate of atmospheric and vacuum distillation units
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How to improve the pull-out rate of atmospheric and vacuum distillation units
Good design, optimized operations, stable properties of raw materials, reasonable quality specifications (for example, the dry point used as a hydrogenation feed can be appropriately increased), and the use of vacuum deep drawing technology.
I support the opinion above! What we need is to increase the extraction rate while maintaining the existing stable quality, and to optimize aspects such as the reflux ratio as well as energy conservation and environmental protection, in order to achieve the best possible results.
Improving the recovery rate in a fractionation tower is crucial, but this must be done while ensuring that the product quality remains acceptable. Stable operation should be maintained, and adjustments made promptly based on changes in the feedstock properties, so that the product achieves the desired level of recovery. To attain an ideal atmospheric recovery rate, it is necessary to prevent light components from entering the vacuum tower; this ensures consistency in the atmospheric recovery rate and helps minimize or avoid increasing the load on the vacuum tower. Once the furnace outlet temperature is set, steam blowing at the bottom of the tower serves as an effective measure for enhancing the recovery rate; however, the amount of steam used must not exceed what the tower’s load capacity permits
Increasing the feed temperature and raising the steam stripping flow are relatively effective methods. At the same time, it is also necessary to adjust the heat extraction in the middle section properly.
Firstly, the product quality must be up to standard; secondly, a relatively high furnace outlet temperature is required.
Since crude oil reacts at 400 degrees, it is not possible to rely on raising the temperature at the outlet of the heater; instead, efforts must be made to reduce the pressure in the vacuum distillation tower. However, lower pressure requires higher investment in equipment, so a comprehensive consideration is necessary.
All the teachers have provided correct analyses; thank you!