Heterogenized Catalyst on Porous Ceramic for Hydroformylation
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Solution Overview
Problem
Current hydroformylation processes using homogeneous catalysts face issues with high costs, energy expenditure, catalyst stability, and product purification, particularly due to the deactivation of catalysts over time in heterogenized systems like SILP, where catalyst activity decreases and pores become flooded with by-products.
Innovation Solution
A process utilizing a heterogenized catalyst system on a porous ceramic support in the form of powder, granular material, or pellets, comprising a metal from Group 8 or 9, organic phosphorus-containing ligands, and a stabilizer, optionally with an ionic liquid, which forms a stable film in the pores to maintain catalyst activity and prevent deactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If homogeneous catalyst systems are used for hydroformylation, then catalytic activity is maintained, but catalyst loss and purification complexity increase
Solution Approach 1:
The patent introduces a porous support material as an intermediary carrier to immobilize the homogeneous catalyst system. The catalyst remains in its active homogeneous form within the pores while being physically retained by the support structure, thus preventing catalyst loss while maintaining catalytic activity.
Solution Approach 2:
The patent utilizes porous support materials with controlled pore sizes to accommodate and retain the homogeneous catalyst system. The porous structure allows reactants and products to diffuse while preventing catalyst escape, effectively solving the catalyst loss problem without compromising activity.
2Reliability
If heterogenized catalyst systems are used to prevent catalyst loss, then catalyst stability improves, but catalyst activity decreases over time
Solution Approach 1:
The patent creates localized optimal environments within the pores of the support material, where the catalyst maintains its homogeneous character and activity while being physically stabilized by the pore structure. This local quality differentiation allows the catalyst to remain active while preventing deactivation.
Solution Approach 2:
The patent combines homogeneous catalyst systems with heterogeneous porous support materials to create a composite catalytic system. This composite approach allows the catalyst to benefit from both the high activity of homogeneous systems and the stability of heterogeneous systems.
3Loss of substance
If catalyst recycling steps are implemented to reduce catalyst loss, then catalyst economy improves, but process complexity and energy expenditure increase
Solution Approach 1:
The patent extracts the catalyst from the continuous liquid phase by immobilizing it on porous support particles, which can be easily separated from the reaction mixture by filtration or decantation. This eliminates the need for complex recycling steps while maintaining catalyst economy.
4Manufacturing precision
If product purification steps are enhanced to remove catalyst residues, then product purity improves, but manufacturing complexity increases
Solution Approach 1:
The patent converts the potential harm of catalyst contamination into a benefit by using the porous support structure to physically trap and retain the catalyst. The immobilized catalyst remains in the solid phase while products are in the liquid or gas phase, making separation straightforward and eliminating the need for complex purification steps.
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 approach enhances catalyst conversion and longevity by maintaining activity and preventing deactivation, achieving higher conversion rates and product linearity compared to traditional SILP systems.
Implementation Method 1
a gaseous feed mixture containing the C2 to C5 olefins is passed together with synthesis gas over a support composed of a porous ceramic material on which the catalyst system is in heterogenized form
Data Source
AI summary
A hydroformylation process can be used for short-chain olefins, especially C2 to C5 olefins, wherein the catalyst system is heterogenized on a support that contains a porous ceramic material. Systems can also be used for carrying out said process.