Composite Oxide Catalyst Composition for Low-Temperature Syngas Activation
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Solution Overview
Problem
Existing Co-containing catalysts for converting hydrocarbons to synthesis gas face challenges in activation efficiency and cost-effectiveness, particularly due to the need for a specialized activation process that increases production costs.
Innovation Solution
A composite oxide comprising lanthanum, aluminum, strontium, and cobalt with a specific Co:Sr weight ratio, which facilitates easier and faster activation at lower temperatures, enhancing catalyst reducibility and reducing production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If Co-containing catalysts are used for converting hydrocarbons to synthesis gas, then production cost is reduced, but activation efficiency deteriorates due to the need for specialized activation procedures
Solution Approach 1:
The patent modifies the chemical composition parameters of the catalyst by incorporating specific ratios of cobalt, strontium, and lanthanum in a composite oxide structure. This compositional parameter change enables the catalyst to achieve both cost-effectiveness and improved activation efficiency, as the specific metal ratios facilitate easier reduction and activation without requiring specialized procedures
Solution Approach 2:
The patent creates a composite oxide material combining cobalt, strontium, and lanthanum in a specific structure. This composite material approach allows the catalyst to integrate multiple functions: cobalt provides catalytic activity for hydrocarbon conversion, while strontium and lanthanum components enhance reducibility and activation efficiency, resolving the contradiction between cost and activation performance
2Reliability
If specialized activation procedures are applied to Co-containing catalysts, then catalyst performance is improved, but production cost increases
Solution Approach 1:
The patent incorporates strontium and lanthanum components into the catalyst structure during manufacturing, which preliminarily prepare the catalyst for easy activation. This preliminary structural preparation eliminates the need for specialized activation procedures later, as the composite oxide structure is pre-configured to facilitate reduction and activation under standard conditions, maintaining both performance and cost-effectiveness
3Productivity
If activation temperature is reduced for easier catalyst activation, then activation speed increases, but catalyst reducibility may deteriorate
Solution Approach 1:
The patent changes the chemical composition parameters by incorporating strontium and lanthanum in specific ratios with cobalt. This compositional modification alters the thermal and chemical properties of the catalyst, enabling it to maintain high reducibility even at lower activation temperatures, thus achieving both fast activation speed and reliable catalyst performance
Solution Approach 2:
The strontium and lanthanum components act as intermediary substances that facilitate the reduction process. These intermediary metals modify the electronic and structural properties of the cobalt oxide, making it more susceptible to reduction at lower temperatures while maintaining catalytic activity, thereby resolving the contradiction between activation speed and reducibility
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 composite oxide catalyst achieves significant cost-efficiency by allowing for rapid activation and improved catalyst performance, thus reducing production costs and enhancing the conversion of hydrocarbons to synthesis gas.
Implementation Method 1
a catalyst for the conversion of hydrocarbons to synthesis gas
Implementation Method 2
improved catalyst reducibility
Data Source
AI summary
The present invention relates to a composite oxide comprising oxygen, lanthanum, aluminum, strontium, and cobalt, wherein the Co:Sr weight ratio of cobalt relative to strontium in the composite oxide, calculated as the elements, is in the range of from 0.01:1 to 20:1, as well as to a method for the production of such a composite oxide, to a method for the production of a catalyst for the conversion of hydrocarbons to synthesis gas, and to a catalyst for the conversion of hydrocarbons to synthesis gas obtained from such a method. Finally the present invention relates to a process for the conversion of hydrocarbons to synthesis gas.