Sulfur-tolerant low-temperature CO reduction denitration catalyst as well as preparation method and application thereof

• Main Authors: LEI BENXI, LIN HAIYAN
• Format: Patent
• Language: Chinese; English
• Published: 30.09.2022
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SEPARATION; SPIRITS; TRANSPORTING; VINEGAR; WINE

The invention discloses a sulfur-resistant low-temperature CO reduction denitration catalyst as well as a preparation method and application thereof, and relates to the technical field of reduction denitration catalysts. The method comprises the following steps: S1, preparing biological activated carbon, and preparing a carrier of an accommodating space from the biological activated carbon; s2, Fe (II) EDTA is used as a complexing absorbent, and an absorption film is formed on the surface of the biological activated carbon carrier; s3, filling the carrier with a culture medium, and constructing a functional mixed flora to form a reducing bacterial agent; and S4, high-concentration organic wastewater is taken as a substrate to construct a liquid-phase auxiliary agent, the carrier is soaked in the liquid-phase auxiliary agent, and the low-temperature reducing agent is constructed. By constructing the multifunctional bacterial agent, SOx and NOx in mixed flue gas can be reduced to form low-temperature denitratio