Novel SNCR (selective non-catalytic reduction) and SCR (selective catalytic reduction) hybrid denitrification system

• Main Author: LIN ZHUOHUI
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2014
• Subjects: CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSEGASES [GHG]; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING

The invention relates to the technical field of industrial smoke nitric oxide emission reduction and denitrification and relates to a novel SNCR (selective non-catalytic reduction) and SCR (selective catalytic reduction) hybrid denitrification system. The novel SNCR and SCR hybrid denitrification system comprises a preparation and storage module, a conveying circulating module, a metering and diluting module, an on-line NOX monitoring module, an automatic control module, a distribution module, a spraying module, a boiler and an SCR reactor. According to the novel SNCR and SCR hybrid denitrification system, an existing SNCR and SCR denitrification system is improved and united, so that full-automatic intelligent operation is realized; the automatic control module can accurately calculate a demand of a denitrification reducing agent by monitoring a nitride generation amount and other data in smoke gas on line and in real time according to the real-time change of a load of the boiler and feed back information to