Low-Temperature Gas Remediation Catalyst for Nitrogen Monoxide
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Solution Overview
Problem
Existing gas remediation technologies for converting nitrogen monoxide (NO) in flue gas require high temperatures or the use of amino reducing agents, which are not conducive to reducing pollution and energy consumption.
Innovation Solution
A gas remediation device that includes an air inlet, a dust filter component, a conversion component with a conversion catalyst, and a scrubber component, capable of converting nitrogen monoxide into nitrogen, oxygen, or nitrogen dioxide at an operating temperature of 15° C. to 300° C. without using an amino reducing agent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional conversion catalysts are used to convert nitrogen monoxide, then nitrogen monoxide can be converted into less toxic gases, but high temperatures or amino reducing agents are required which increase energy consumption and pollution
Solution Approach 1:
The patent changes the operating temperature parameter from conventional high temperatures to low temperatures (15-300°C), and changes the chemical composition parameter by using a catalyst system comprising manganese oxide, cerium oxide, and cobalt oxide instead of conventional catalysts requiring amino reducing agents. This resolves the contradiction by achieving effective nitrogen monoxide conversion without high energy input or additional pollutants.
Solution Approach 2:
The patent employs a composite catalyst material consisting of manganese oxide, cerium oxide, and cobalt oxide in specific ratios. This composite material provides synergistic effects that enable low-temperature operation and eliminate the need for amino reducing agents, thereby reducing both energy consumption and pollution while maintaining effective nitrogen monoxide conversion.
2Object-affected harmful factors
If conventional conversion catalysts are used to convert nitrogen monoxide, then nitrogen monoxide can be converted into less toxic gases, but amino reducing agents must be used which increase pollution
Solution Approach 1:
The patent extracts and eliminates the amino reducing agent component from the conventional nitrogen monoxide conversion system. By using a specially designed catalyst system comprising manganese oxide, cerium oxide, and cobalt oxide, the process achieves effective conversion without requiring amino reducing agents, thereby eliminating the associated pollution while maintaining conversion efficiency.
Solution Approach 2:
The patent changes the chemical composition parameter of the catalyst system to one that does not require amino reducing agents for operation. The manganese oxide-cerium oxide-cobalt oxide catalyst system operates effectively at low temperatures without amino reducing agents, thus eliminating the pollution source while achieving the desired nitrogen monoxide conversion to less toxic gases.
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 device achieves efficient conversion of nitrogen monoxide with high efficiency, ranging from 55% to 95%, while operating at low temperatures and without the need for amino reducing agents, thereby reducing environmental pollution and energy consumption.
Implementation Method 1
The conversion component includes a conversion chamber, and the conversion chamber includes a conversion catalyst. The conversion catalyst converts nitrogen monoxide into nitrogen, oxygen, nitrogen dioxide, or a combination thereof at an operating temperature of 15° C. to 300° C.
Data Source
AI summary
A gas remediation device is provided, which includes an air inlet, a dust filter component, a conversion component, a scrubber component, and an air outlet. The air inlet is used to receive flue gas, wherein the flue gas includes nitrogen monoxide. The dust filter component is in fluid communication with the air inlet. The conversion component is in fluid communication with the dust filter component. The conversion component includes a conversion chamber, and the conversion chamber includes a conversion catalyst. The conversion catalyst converts nitrogen monoxide into nitrogen, oxygen, nitrogen dioxide, or a combination thereof at an operating temperature of 15° C. to 300° C. The scrubber component is in fluid communication with the conversion component. The air outlet is in fluid communication with the scrubber component.