System for reducing nitrogen oxide emission

• Main Authors: JIANG LIN, CUI XIN, CHEN YING, ZHOU YUJUN, HUANG JIYUE, CHENG GUANGJIAN, TIAN ZHENYING, SHI JUN, MAO TAO, LI ZHENZHONG, MENG FANYUE
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention belongs to the technical field of environmental governance, and discloses a system for reducing nitrogen oxide emission, a liquid separation tank and an air compressor are arranged in parallel and are respectively connected with a first mixer through pipelines, two pipelines are arranged between the first mixer and a preheater, one pipeline is connected with a first gas analyzer, and the other pipeline is connected with a second gas analyzer; the other pipeline is connected with a tail gas circulating compressor, the pipeline between the preheater and the tail gas circulating compressor is sequentially connected with a second gas analyzer, a third gas analyzer and a tail gas emission chimney, and meanwhile, the preheater is sequentially connected with a waste heat recoverer, a NOx reduction reactor, a second mixer, a second heat exchanger and a first heat exchanger to form a closed loop; meanwhile, the first heat exchanger is sequentially connected with the second N2O decomposition reactor, the