Cobalt Catalyst Ether Support Fischer-Tropsch
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Solution Overview
Problem
Current Fischer-Tropsch synthesis catalysts, despite the addition of various organic compounds, do not consistently achieve sufficient performance improvements to make the process profitable, and their industrial implementation is complex.
Innovation Solution
A catalyst with an active cobalt phase deposited on a support containing a mixed oxide phase of cobalt and/or nickel, prepared using an ether organic compound with no more than two ether functions and no hydroxyl group, which enhances catalytic activity and selectivity through improved cobalt dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If various organic compounds are added to Fischer-Tropsch synthesis catalysts to improve activity, then catalytic performance is improved, but the process complexity and difficulty of industrial implementation increase
Solution Approach 1:
The patent changes the chemical parameter of the organic compound from complex molecules (polyols, sugars, chelating compounds) to simple ether compounds with specific molecular weight ranges (100-500 g/mol). This parameter change maintains the beneficial effect of improving cobalt dispersion and catalytic activity while eliminating the complexity associated with handling and processing complex organic additives.
Solution Approach 2:
The patent employs simple, inexpensive ether compounds that can be easily introduced and removed from the system, replacing complex organic additives that are difficult to handle and remove. The simple ether molecules serve their function of improving catalyst performance during preparation and can be more easily eliminated or degraded in the industrial process.
2Productivity
If complex organic compounds are used as additives to improve catalyst performance, then catalytic activity increases, but ease of manufacture decreases
Solution Approach 1:
The patent fundamentally changes the molecular weight parameter and chemical structure of the organic additive from high molecular weight complex compounds to low molecular weight simple ethers. This makes the additive easier to manufacture, handle, and incorporate into the catalyst preparation process, directly improving ease of manufacture while maintaining the performance enhancement benefit.
3Productivity
If organic compounds with multiple functional groups are used to modify catalyst properties, then catalytic selectivity is improved, but device complexity increases
Solution Approach 1:
The patent extracts only the essential ether functional group from complex multi-functional organic compounds. By using simple ether compounds with molecular weights between 100-500 g/mol, the patent removes unnecessary molecular complexity while retaining the key ether oxygen functionality that interacts with cobalt species to improve dispersion and catalytic selectivity.
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 catalyst exhibits increased activity and selectivity in Fischer-Tropsch synthesis, with a greater number of active sites and improved performance compared to catalysts without the ether organic compound, leading to more efficient hydrocarbon production.
Implementation Method 1
The catalyst exhibits increased activity and selectivity in Fischer-Tropsch synthesis, with a greater number of active sites and improved performance compared to catalysts without the ether organic compound
Implementation Method 2
A catalyst with an active cobalt phase deposited on a support containing a mixed oxide phase of cobalt and/or nickel, prepared using an ether organic compound with no more than two ether functions and no hydroxyl group, which enhances catalytic activity and selectivity
Data Source
AI summary
The present invention relates to a catalyst containing an active cobalt phase, deposited on a support comprising alumina, silica or silica-alumina, said support containing a mixed oxide phase containing cobalt and/or nickel, said catalyst has been prepared by introducing at least one ether organic compound comprising not more than two ether functions and not comprising a hydroxyl group. The invention also relates to the process for the preparation thereof, and to the use thereof in the field of Fischer-Tropsch synthesis processes.