Regular Structure Catalyst for Simultaneous SOx and NOx Reduction

The patent combines multiple removal functions into a single catalyst system. The catalyst comprises a support with regular structure and an active component coating containing a matrix and active metal component, where the active metal component includes rare earth and Group IIA metals, non-precious metals, and precious metals. This integrated catalyst simultaneously removes both SOx and NOx from flue gas, eliminating the need for separate removal processes and reducing equipment investment while maintaining effective removal of both pollutants.

The catalyst system is designed with multi-functionality to address multiple pollution issues simultaneously. The active component coating contains a matrix and active metal component with specific metal compositions that enable the catalyst to perform both sulfur oxide removal and nitrogen oxide removal functions. This universal catalyst design allows a single device to handle both SOx and NOx removal, reducing the overall complexity of the flue gas treatment system.

The patent replaces the ammonia injection method with a catalyst-based removal system. Instead of injecting ammonia which causes escape and blue smoke issues, the catalyst uses a controlled composition of active metals (including rare earth metals, Group IIA metals, non-precious metals, and precious metals) on a regular structure support to chemically convert NOx and SOx into harmless substances. This eliminates the harmful byproducts of ammonia injection while maintaining effective NOx removal.

The patent substitutes the mechanical ammonia injection system with a catalytic chemical conversion system. Rather than injecting ammonia gas which leads to escape and blue smoke tailing, the catalyst uses a regulated composition of metal components on a support structure to facilitate chemical reactions that convert NOx and SOx directly, eliminating the mechanical injection process and its associated harmful effects.

The patent replaces expensive wet desulfurization technology with a cost-effective catalytic removal system. Instead of using alkali injection and complex wet processing equipment, the catalyst employs a support with regular structure and an active component coating containing a matrix and active metal component. The active metal component includes rare earth and Group IIA metals, non-precious metals, and precious metals in specific proportions, providing efficient SOx removal at lower operation costs.

The patent optimizes the compositional parameters of the catalyst to achieve cost-effective performance. The active component coating contains a matrix and active metal component with specific metal compositions and ratios. By carefully selecting and proportioning the metal components (rare earth metals, Group IIA metals, non-precious metals, and precious metals), the catalyst achieves efficient SOx and NOx removal while minimizing material costs and operation expenses.