Cylindrical Catalyst Body with Prism Base for Fixed-Bed Reactors
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Solution Overview
Problem
Existing shaped catalyst bodies for catalytic conversion in fixed bed reactors experience high pressure loss, leading to increased operating costs and reduced productivity due to the need for higher compressor power and mechanical stress on forming tools.
Innovation Solution
A shaped catalyst body with a cylindrical geometry featuring a prism base with a length greater than the width, having four lobes and a continuous opening parallel to the cylinder axis, which minimizes pressure loss and enhances mechanical stability, allowing for higher space velocities and productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional shaped catalyst bodies are used in fixed-bed reactors, then catalytic conversion can be performed, but pressure loss increases and productivity decreases
Solution Approach 1:
The catalyst body is divided into multiple cylindrical segments stacked along the central axis, creating a segmented structure that reduces flow resistance and improves gas distribution compared to conventional monolithic shapes
Solution Approach 2:
The invention transitions from conventional 2D cross-sectional catalyst shapes to a 3D stacked cylindrical structure with multiple segments, utilizing the vertical dimension to optimize flow paths and reduce pressure loss while maintaining catalytic activity
2Ease of manufacture
If conventional catalyst body geometries are used, then reactor operation is simple, but mechanical stress on forming tools increases and manufacturing becomes difficult
Solution Approach 1:
The catalyst body is divided into multiple cylindrical segments stacked along the central axis, creating a segmented structure that reduces flow resistance and improves gas distribution compared to conventional monolithic shapes
Solution Approach 2:
The catalyst body employs a composite structure combining multiple cylindrical segments with a central through-opening, integrating mechanical strength requirements with flow optimization needs in a unified design
Data Source
Figure 1a~2b
Figure 3a~4
AI summary
The invention relates to a catalyst shaped body for the catalytic reaction of organic and inorganic components in fixed-bed reactors, wherein the catalyst shaped body is designed as a cylinder having a base surface, a cylinder surface, a cylinder axis and at least one completely penetrating opening running parallel to the cylinder axis, and the base surface of the cylinder has at least four corners.