Process vessel entry zones

The introduction of a stability-improving entry zone with specific porosity and density in process vessels addresses bed movement and filtration issues, enhancing stability and filtration performance while reducing vertical space and pressure drops.

JP2025169456APending Publication Date: 2025-11-12CRYSTAPHASE INTERNATIONAL INC
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Patent Information

Application Number
JP2025143291
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2020-09-09
Filing Date
2025-08-29
Publication Date
2025-11-12

AI Technical Summary

Technical Problem

Industrial process vessels experience issues with bed movement and filtration due to high fluid velocities, leading to pressure drops and shutdowns, which conventional stabilization and filtration methods fail to adequately address.

Method used

Incorporating an entry zone with stability-improving material having a porosity of 67% to 87%, density of 30 to 60 lbs/ft³, and weight per unit area of 25 to 200 grams, which includes a network of interconnected pores to stabilize and filter undesirable species, reducing bed movement and pressure drops.

Benefits of technology

The entry zone stabilizes the bed, reduces vertical space requirements, minimizes pressure drops, and enhances filtration capacity, thereby extending the cycle life and operational efficiency of the process vessel.

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Abstract

To provide a method for improving the stability of a processing bed contained in a process vessel and providing filtration capability.SOLUTION: Provided is a method for improving stability of a processing bed and obtaining internal filtration capability, in which an entry zone 170 is provided upstream of a process stream to the processing bed 40 contained in a process vessel 10, the entry zone containing a bed of stability-improving materials 175 having a porosity in the range from 67% to 87%, a density in the range from 30-60 lbs / ft3, and a weight per piece of 12-300 grams, and the process vessel can further include a handling zone 150 located between the entry zone and the processing bed to facilitate internal filtration of undesired species contained in the stream.SELECTED DRAWING: Figure 9
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