Transport-Container Adsorbent Units for Pyrolysis Oil Cleanup
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Solution Overview
Problem
The removal of small quantities of contaminants such as halogen, nitrogen, sulfur, and metallic compounds from hydrocarbon feedstock fluids during transport is challenging, leading to corrosion, catalyst deactivation, and increased maintenance in refinery units.
Innovation Solution
The method involves supplying a hydrocarbon feedstock fluid containing contaminants to a transport container, where it is contacted with an adsorbent contained within removable units. These units provide fluid communication, allowing the contaminants to be deposited onto the adsorbent, thereby reducing their concentration in the fluid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hydrocarbon feedstock fluid is transported in bulk to a processing facility, then transportation efficiency is improved, but contaminants accumulate and cause corrosion and catalyst deactivation
Solution Approach 1:
The patent applies preliminary action by installing adsorbent units within the transport container to remove contaminants during the transportation process itself, rather than waiting until the fluid reaches the processing facility. This preliminary decontamination prevents the accumulation of harmful substances that would otherwise cause corrosion and catalyst deactivation, while maintaining the efficiency of bulk transportation.
Solution Approach 2:
The patent uses adsorbent material as an intermediary substance that selectively binds to and removes contaminants (halogen, nitrogen, sulfur, and metallic compounds) from the hydrocarbon feedstock fluid during transport. This intermediary mechanism allows the bulk fluid to be transported efficiently while the adsorbent mediates the removal of harmful components, preventing them from reaching the processing facility in harmful quantities.
2Reliability
If adsorbent units are added to the transport container, then contaminant removal is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the adsorbent system into multiple separate, modular units that can be independently installed and removed from the transport container. Each unit contains adsorbent material and can be positioned at different locations within the container to optimize contact with the feedstock fluid. This segmented approach improves feedstock quality through effective contaminant removal while managing device complexity by using standardized, replaceable modules rather than a complex integrated system.
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
This method achieves a reduction of about 10 weight percent or more of contaminants such as diolefin, oxygen, nitrogen, and halogen compounds, improving the quality of the hydrocarbon feedstock and reducing operational issues in refinery units.
Implementation Method 1
contacting the hydrocarbon feedstock fluid with an adsorbent contained within a removable unit positioned inside the transport container... causing deposition of a portion of the at least one contaminant from the hydrocarbon feedstock fluid onto the adsorbent
Data Source
AI summary
Provided here are methods and systems for treatment of a hydrocarbon feedstock fluid during transportation to reduce contaminants harmful to refinery cracking units. Methods include transporting a contaminated hydrocarbon feedstock fluid in a transport container outfitted with removable units containing an adsorbent. The removable units can be exchanged to provide fresh adsorbent, or configured to treat specific contaminants present in the hydrocarbon feedstock fluid.