Cement-Clay Support Catalyst for Low-Energy Hydrogen Production
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Solution Overview
Problem
The high cost of hydrogen production catalysts based on thermochemical methanol reactions is due to the energy-intensive high temperature treatments required for aluminum oxide and zirconium dioxide supports, which also make the catalysts expensive.
Innovation Solution
A catalyst composition using cement and clay as the support component with a weight ratio of 3/7 to 9/1, combined with copper oxide or its precursor as the active component, which eliminates the need for pre-high temperature treatment of the support and reduces raw material costs, while maintaining catalytic activity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If aluminum oxide and zirconium dioxide are used as support components, then catalyst strength and stability are improved, but manufacturing cost and energy consumption increase due to high temperature treatment requirements
Solution Approach 1:
The patent changes the thermal treatment parameters by using a lower temperature range (600-800°C) compared to conventional high temperature treatment, while achieving comparable catalyst performance through the synergistic effect of cement-clay composite support and copper-based active component
Solution Approach 2:
The patent employs a composite support structure made of cement and clay materials that can achieve the required mechanical strength and catalytic stability without requiring extreme high temperature treatment, thus reducing energy consumption while maintaining reliability
2Strength
If aluminum oxide and zirconium dioxide are used as support components, then catalyst strength is improved, but manufacturing cost increases
Solution Approach 1:
The patent substitutes expensive conventional support materials (aluminum oxide and zirconium dioxide) with more economical cement and clay-based materials that can provide adequate mechanical strength and catalytic performance at lower cost
Solution Approach 2:
The composite cement-clay support structure provides sufficient mechanical strength through material composition and microstructure design, eliminating the need for expensive conventional supports while maintaining catalyst integrity
3Reliability
If two high temperature treatments are applied during catalyst manufacturing, then active component adhesion is improved, but energy consumption increases
Solution Approach 1:
The patent combines the support preparation and active component deposition processes into a more integrated flow, where the support is prepared and the copper-based active component is deposited in a manner that requires only one thermal treatment step, reducing energy consumption while ensuring proper adhesion
Solution Approach 2:
The patent optimizes the thermal treatment parameters (temperature range, duration, and atmosphere) to achieve both support sintering and active component adhesion in a single treatment step, eliminating the need for separate high temperature treatments
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 method reduces energy costs and achieves low-cost, high-performance hydrogen production with improved long-term catalyst performance, comparable to commercial catalysts, and maintains sufficient catalytic activity and stability.
Implementation Method 1
A thermal treatment step is performed, wherein the support precursor is sintered to form a support, so as to obtain the catalyst
Implementation Method 2
The active component includes copper oxide or a precursor of copper oxide... the reactant undergoes a reaction to produce hydrogen
Data Source
AI summary
A catalyst composition for manufacturing a catalyst for hydrogen production based on thermochemical reaction of methanol is disclosed. The catalyst composition includes a support component and an active component. The support component includes cement and clay, wherein a weight ratio of the cement to the clay is 3/7 to 9/1. The active component includes copper oxide or a precursor of copper oxide. Based on 100 parts by weight of the support component, a content of the active component is 5 to 10 parts by weight.