Partitioned Distillation Column for Inorganic Impurity Removal
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Solution Overview
Problem
Existing refinery processes struggle to achieve high purity in products due to the presence of inorganic impurities, particularly metal components, which are not effectively removed during the production of compounds like isopropyl alcohol, leading to reduced product quality.
Innovation Solution
A refinery apparatus with a distillation column featuring a partitioned bottom region, including a feed inflow zone and a reboiler zone, separated by a partition wall, and equipped with guide baffles to precipitate and discharge high-density inorganic substances, thereby minimizing their introduction into the reboiler.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional distillation column without partition wall is used, then the structure is simple, but inorganic impurities cannot be effectively removed from the feed stream
Solution Approach 1:
The bottom region of the distillation column is divided into a first region and a second region by a partition wall extending from the bottom upward. This segmentation allows the feed stream to be directed to a specific region where inorganic impurities can settle and be removed separately from the main distillation process, thereby improving product purity without significantly complicating the overall column structure
Solution Approach 2:
The partition wall creates a localized zone (first region) with different flow characteristics and impurity removal functionality compared to the rest of the column. This local structural modification enables targeted inorganic impurity removal at the bottom region while maintaining conventional distillation operations in the upper regions
2Manufacturing precision
If the feed stream is directly supplied to the reboiler, then the process is simple, but inorganic substances are introduced into the reboiler reducing product purity
Solution Approach 1:
The partition wall structure performs preliminary separation of inorganic impurities from the feed stream before the liquid is supplied to the reboiler. By creating a dedicated first region where inorganic substances can settle and be removed through a separate outlet, the system prevents these impurities from entering the reboiler and contaminating the final product
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus effectively removes inorganic substances, enhancing the purity of the refined product by minimizing their presence in the reboiler zone and improving the overall purity of the final output.
Implementation Method 1
one end of a lowest tray among the plurality of trays may be opened so as not to contact a side of the distillation column on the first region, and a guide baffle extending downward from one end of the lowest tray to be adjacent to the bottom of the distillation column may be provided
Implementation Method 2
precipitating high-density inorganic substances in the material to be refined downward and then discharging precipitated inorganic substances downward by the guide baffle
Implementation Method 3
a distillation column; and a reboiler, in which an interior of the distillation column is divided into a bottom region, a middle region, and a top region
Data Source
AI summary
Refinery apparatus including a distillation column partitioned into a first and second region with a partition wall therebetween in a bottom region thereof, the distillation column including a feed supply port at one side of a middle region, a first outlet provided below the first region, a second outlet provided below the second region and connected to one side of a reboiler, and a reflux inlet provided above the second region and connected to the other side of the reboiler, and a plurality of trays arranged vertically apart from the partition wall provided in the middle region, where one end of a lowest tray among the plurality of trays is opened so as not to contact a side of the distillation column on the first region, and a guide baffle extends downward from one end of the lowest tray to be adjacent to a bottom of the distillation column.