Catalyst Carrier Compacting Element for Reduced Fluidisation
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Solution Overview
Problem
Catalyst fluidisation and attrition occur in conventional catalyst carriers, leading to potential catalyst loss and inefficiencies in heat transfer, especially in exothermic or endothermic reactions.
Innovation Solution
A catalyst carrier with a compacting element, such as a compressible or tamping element, is used to apply compressive force to the catalyst particles, reducing fluidisation and enhancing catalyst retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If catalyst is directly packed into reactor tubes, then heat transfer efficiency is improved, but catalyst fluidisation and attrition occur leading to catalyst loss
Solution Approach 1:
The catalyst system is segmented into two distinct components: a catalyst bed containing the catalytic particles, and a separate compacting element. This segmentation allows the catalyst to be contained in a structured bed that prevents fluidisation while maintaining heat transfer efficiency through the reactor tube wall.
Solution Approach 2:
The compacting element acts as an intermediary component between the catalyst bed and the reactor tube environment. It provides mechanical compression to stabilize the catalyst bed structure, preventing particle fluidisation and movement, thereby eliminating catalyst loss while preserving efficient heat transfer.
2Loss of substance
If catalyst carrier structure is added to contain catalyst, then catalyst retention is improved, but device complexity increases
Solution Approach 1:
The invention extracts the compacting function from complex mechanical retention structures. Instead of using elaborate carrier frameworks, the compacting element is a simple compressed component that provides sufficient mechanical pressure to prevent catalyst fluidisation, thereby achieving retention with minimal structural complexity.
Solution Approach 2:
The compacting element utilizes changes in compression parameters to achieve catalyst retention. By applying controlled compressive force through a simple element, the system achieves effective catalyst containment without requiring complex structural designs, thus reducing device complexity while improving retention.
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 compacting element reduces catalyst movement, increasing the working life and efficiency of the catalyst by minimizing attrition and maintaining a stable catalyst bed.
Implementation Method 1
the compacting element for reducing fluidisation of the particles of catalyst
Implementation Method 2
a heat-transfer medium flows through the shell of the reactor outside these tubes and thereby adjusts the temperature of the catalyst in the tubes by heat exchange across the tube wall
Implementation Method 3
efficient heat transfer via the tube wall to the heat-transfer medium
Data Source
AI summary
A catalyst carrier for insertion into a reactor tube of a tubular reactor that comprises a container containing particles of catalyst. The container further contains a compacting element for reducing fluidisation of the particles of catalyst.